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1987 * BMW3Series Electrical Troubleshooting Manual 325 325e 325es
325i 325is 325i Convertible
* 1987 Vehicles Built Before 9/86 Use 1986 325 Electrical Troubleshooting Manual For Diagnostics.
BMW of North America, Inc. Montvale, New Jersey
FOREWORD
In the interests of continuing technical development work we reserve the right to modify designs and equipment.
Printed in USA
©Copyright BMW of North America, Inc.
Not to be reproduced wholly or in part without written permission of BMW of North America, Inc. PN 01 00 1467 820
1987* BMW3SERIES Electrical Troubleshooting Manual
CONTENTS
Index . . . . . . . . . . . . . . . . . . . 2 How To Use This Manual . . . . 3 Symbols . . . . . . . . . . . . . . . . 4 Wire Size Conversion Chart . . . 5 Systematic Troubleshooting . . 6 Connector Views . . . . . . . . . . 8500-0 Power Distribution Box . . . . . . 0670-0 Fuse Data . . . . . . . . . . . . . . . 0670-1 Component Location Chart . . . 9000-0 Component Location Views . . 7000-0 Splice Location Views ....... 8000-0
* 1987 VEHICLES BUlL T BEFORE 9/86 USE 1986 325 ELECTRICAL TROUBLESHOOTING MANUAL FOR DIAGNOSTICS.
2-A INDEX 1987 VEHICLES BUILT BEFORE 9/86 USE 1986 325 ELECTRICAL TROUBLESHOOTING MANUAL Index-Alphabetical Listing of Electrical Circuits
Active Check Control ...... . A/C Air Delivery Control .... . A/C Blower Controls ...... . A/C Compressor Controls ... . A/C Temperature Control ... . AntilockBraking System (ABS) Auto-Charging Flashlight ... . Auxiliary Fan ........... . Auxiliary Fuse ........... . Brake Warning System ..... . Central Locking - (2 Door) ............. . - (4 Door) ............. . Charge System 2. 7e Engine .. Charge System 2. 5i Engine .. . Cigar Lighter ........... . Component Location Chart .. . Component Location Views .. Connector Views ........ . Cruise Control .......... . Fuel Economy Gauge 325e .. . Fuel Economy Gauge 325i .. . Fuel Gauge ............. . Fuse Data Chart ......... . Fuse Details - Fuse 4 ............. . - Fuse 5 ............. . - Fuse 6 ............. . - Fuse 8 ... o o .... o . 0 0 o - Fuse 9 0 • 0 0 0 • 0 0 0 0 • 0 0 0
- Fuse 10 ............. . - Fuse 12 ........ 0 ••••
- Fuse 19 ............ . - Fuse 20 0 0 0 0 0 0 0 0 ••••••
- Fuse 21 0 •••• 0 ••••••••
- Fuse 27 0 • 0 0 0 0 0 0 0 • 0 • 0
Gauges ............... . Ground Distribution - G 103 2. 7e Engine ..... . - G1032o5iEngine 0. 0 0. 0.
- G 1 04 0 • • • 0 0 • • • • 0 • • • •
PAGE 6216-0 6421-0 6413-0 6452-0 6411-0 3450-0 6100-1 6454-0 0670-2 3435-0
5126-0 5126-2 1230-0 1230-1 6100-1 9000-0 7000-0 8500-0 6571-0 6210-4 6210-5 6210-3 0670-1
0670-10 0670-10 0670-10 0670-11 0670-12
0670-7 0670-11 0670-11
0670-8 0670-9
0670-12 6210-3
0670-13 0670-13 0670-14
- G 1 06 . . . . . 0 • • • 0 • .. • • •
- G 200 Except Convertible
- G200 Convertible ..... .
- G 201 Except Convertible - G 201 Convertible ..... . - G202 0 ••••••••••••••
- G 300 Except Convertible - G300 Convertible ..... . Horns .. 0 •••••••••••••••
Ignition Key Warning ....... . Indicators
PAGE 0670-14 0670-14 0670-15 0670-16 0670-14 0670-17 0670-18 0670-15 0670-18 0670-19 0670-16 0670-19
6100-0 6131-0
- Active Check Control Alarm Except Convertible . . . . . . . . . . . . . . 6216-2 - Active Check Control Alarm Convertible ••••••••••• 0 • 0 0 ••••• 0 • 6216-3 - "Brake Lights" Fault .. 0 • • • 6216-1 - "Brake Lining" Wear .. 0 • • 3435-0 - "Brake Warning" .... 0 • • • 3435-0 - Charge .. 0 •••• 0 •• 0 • • • • 6210-0 - "Coolant" Level Fault Except Convertible .. 0 • • • • • • • • • • • 6216-2 - "Coolant" Level Fault Convertible
. . . . . . . . . . . . . . . . . . . . . 6216-3 - "Engine Oil" Fault Except Convertible
• 0 0 •••••• 0 ••••••• 0 • • • 6216-2 - "Engine Oil" Fault Convertible
6216-3 - Fasten Seatbelts Except Convertible ••••• 0 • • • • • • • • • • • • • • • 6216-2
- Fasten Seatbelts Convertible 6216-3 - Fog Lights . . . . . . . . . . . . 6312-0 - High Beam . . . . . . . . . . . . 6210-0 -Inspection 325e ..... 0.. 6210-1 - Inspection 325i . . . . . . . . 6210-2 - LHTurn .. 0 ..... 0..... 6210-0 - "License Plate" Fault . 0 • • 6216-1 - "Low Beam" Fault .. 0 • • • 6216-0
- Low Fuel Warning ...... . - Oil Pressure Warning . 0 •••
- Oil Service 325e ....... . - Oil Service 325i ....... . - "Park Brake" ..... 0 ••••
- "Rear Lights" Fault ..... . - RH Turn ............. o - "Washer Fluid" Fault Except
PAGE 6210-3 6210-3 6210-1 6210-2 3435-0 6216-1 6210-0
Convertible . . . . . . . . . . . . . 6216-2 - "Washer Fluid" Fault Convertible ••••••••••••••••• 0 0 0 • 6216-3
Injection Electronics 2. 5i Engine ......... 0 ••••• 0
Injection Electronics 2. 7e Engine ........ 0 ••••••••
Instrument Cluster .. 0 •••••
Lights - A/C Control Power ..... . -Ashtray ............. . - Backup Except Convertible - Backup Convertible ..... . - Cigar Lighter ...... 0 •••
-Fog ...... 0 •••••• 0 •• 0
- Front Side Marker ...... . - Front Turn/Park ........ . - Glove Box ......... 0 ••
- Hazard Switch .... 0 0 • 0 •
- Headlights . 0 • 0 0 ••• o o 0 •
- Instrument Cluster ..... . - Interior Except Convertible - Interior Convertible ..... . - License . 0 • • • 0 • 0 • • • • • •
- Map Reading Light .... 0 ••
- Rear Side Marker .. 0 • 0 • 0 0
- Stop 0 • 0 0 0 0 0 0 0 0 0 0 • 0 0 0
-Tail 0 0 0 0 0 0 0 0. 0 0. 0 0 0 0 0
- Trunk . 0 0 0 0 0 0 0 0 0 0 •• 0 0
- Turn/Park 0 0 0 0 0 0 • 0 0 0 •• 0
Light Switch Details 0 ••••••
Multifunction Clock 0 • 0 ••• 0 0
On-Board Computer 0 0 0 • 0 0 ••
1360-0
1362-0 6210-0
6300-1 6300-1 6322-0 6322-1 6300-1 6312-0 6314-0 6314-0 6100-1 6313-0 6312-0 6300-1 6330-1 6330-0 6320-0 6100-1 6320-0 6325-0 6314-0 6320-0 6313-1 6300-0 6581-0 6581-2
INDEX 1987 VEHICLES BUll T BEFORE 9/86 USE 1986 325 ELECTRICAL TROUBLESHOOTING MANUAL 2-B Index-Alphabetical Listing of Electrical Circuits
Power Antenna .......... . Power Distribution ........ . Power Distribution Box ..... . Power Mirrors ........... . Power Windows - 2 Door .............. . - 4 Door .............. . - Convertible ........... . Radio With Sound System ... . Radio Without Sound System .. Rear Defogger Except Convertible
Rear Defogger Convertible ... . Seatbelt Warning ......... . Service Interval Indicator 325e . Service Interval Indicator 325i . Speedometer ........... . Splice Location Views Index .. Start - Automatic Except Convertible - Manual Except Convertible . - Automatic Convertible ... . - Manual Convertible ..... . Sunroof ............... . Tachometer 325e ........ . Tachometer 325i ......... . Temperature Gauge ....... . Warnings - Ignition Key/Seatbelt .... . Wiper/Washer ........... .
PAGE 6500-0 0670-0 0670-0 5116-0
5133-2 5133-0 5133-3 6500-0 6500-2
6100-4 6100-2 6131-0 6210-1 6210-2 6210-0 8000-0
1240-0 1240-1 1240-2 1240-3 5413-0 6210-4 6210-5 6210-3
6131-0 6160-0
The purpose of this manual is to show electrical schematics in a manner that makes electrical troubleshooting easier. Electrical components which work together are shown together on one schematic. The Wiper-Washer schematic. for example, shows all of the electrical components in one diagram. At the top of the page is the fuse (positive) that powers the circuit. The flow of current is shown through all wires, connectors. switches. and motors to ground (negative) at the bottom of the page.
Within the schematic, all switches and sensors are shown "at rest" as though the Ignition Switch were off. For identification, component names are underlined and placed next to or above each component. Notes are included. describing how switches and other components work.
The power distribution schematic shows the current feed through all the connections from the Battery and Alternator to each fuse and the Ignition and Light Switches. If the Power Distribution schematic is combined with any other circuit schematic. a complete picture is made of how that circuit works. The Ground Distribution schematics show how several circuits are connected to common grounds.
All wiring between components is shown exactly as it exists in the vehicle; however, the wiring is not drawn to scale. To aid in understanding electrical operation, w~r~ng inside complicated components has been simplified. The "Solid State" label designates electronic components.
METRIC (CROSSECTIONAL AREA
IN MM 2 )
.5
.75 1 1.5 2 2.5 4 6 8
16 20 25 32
AWG (AMERICAN
WIRE GAUGE)
20 18 16 14 14 12 10
8 8 4 4 2 2
HOW TO USE THIS MANUAL 3
ABBREVIATIONS
BK BR RD YL GN BU VI GY WT PK
COLOR
BLACK BROWN RED YELLOW GREEN BLUE VIOLET GRAY WHITE PINK
4 SYMBOLS
.8 GN
ENTIRE COMPONENT SHOWN
PART OF A COMPONENT SHOWN
COMPONENT WITH SCREW TERMINALS
SOLID STATE (INCLUDES ONLY ELECTRONIC PARTS)
...... ~~CONNECTOR ATTACHED TO COMPONENT
COMPONENT CASE IS DIRECTLY ATTACHED TO METAL PART OF CAR (GROUNDED)
HUI AT 1\Ll IIM~S
INDICATES THAT FUSE 5
----- IS ALWAYS SUPPLIED WITH POWER
HOT IN HUN OH STAI-n
INDICATES THAT FUSE 6 IS SUPPLIED WITH POWER
----\'VITi! THE IGNITION SWITCH IN THE RUN OR START POSITIONS
MANUAL
2
.
5
BKI
TRANSMISSION
WIRE CHOICES FOR OPTIONS ARE SHOWN AND LABELED
/ AUTOMATIC TRANSMISSION
~---'A
UB~Yl ... ,r
_75 BU/YL l CONNECTOR REFERENCE NUMBER FOR COMPONENT LOCATION CHART
/
PIN NUMBER / TOTAL NUMBER OF CONTACTS POSSIBLE:
1 l ~ CHART ALSO SHOWS
.75 BU/Yl ClUJ (6 PIN)
WIRE INSULATION A WAVY LINE IS ONE COLOR ~ / MEANS A WIRE
1 1.5 RD , IS CONTINUED
WIRE SIZE IN MM 2
(. l WIRE INSULATION IS ONE COLOR
) _5 RD/BR : WITH ANOTHER t:= "'f COLOR STRIPE
(REO WITH BROWN)
~ WIRE.· IS ATTACHED TO METAL PART OF CAR (GROUNDED)
.5 BR
GROUND IS NUMBERED FOR REFERENCE ON
G10J COMPONENT LOCATION CHART
~DIODE
CURRENT CAN FLOW ONLY IN THE DIRECTION OF THE ARROW
CIRCUIT REFERENCE.-
OTHER CIRCUITS THAT SHARE A GROUND ARE SHOWN IN GRO UNO DISTRIBUTION
A WIRE WHICH CONNECTS TO ANOTHER CIRCUIT
.15 GY/VL ~ ACTIVE CHECK CONTROL
,......_..,., ONE POLE, TWO POSITION SWITCH
SWITCHES THAT MOVE TOGETHER
DASHED LINE SHOWS A MECHANICAL CONNECTION BETWEEN SWITCHES
i j TWO CONNECTIONS (PINS) IN THE SAME
.75 BU/BR .76 IIU/YL CONNECTOR
4 -----~ C104
i I DASHED LINE SHOWS .5 BU/BR .5 BU/YL PARTS OF THE
SAME CONNECTOR
WHEN COIL IS ENERGIZED, SWITCH IS PULLED CLOSED
RELAY SHOWN WITH NO CURRENT FLOWING THROUGH COIL
TERMINAL NUMBER
RESISTOR ACROSS COIL IS FOR NOISE SUPPRESSION
NAME OF COMPONENT
OK"'1'""""''"' START RELAY/ ENERGIZED
"'CONNECTOR TERMINAL NUMBER
INSTART ~
DETAILS ABOUT COMPONENT OR OPERATION
TWO POLE, FOUR POSITION SWITCH
"R" IS ENERGIZED IN ACCY, RUN OR START
RELAY SHOWN WITH RESISTOR ACROSS COIL
RH FRONT TURN/PARK
llli!!I PARK I TURN
.75 BR ·--....... S101
GROUND DISTRIBUTION
/ 2.5 BR OTHER CIRCUITS ALSO GROUNDED
AT G102 THROUGH S101, BUT ARE NOT SHOWN. REFER TO GROUND DISTRIBUTION FOR DETAILS.
!!ill
SYMBOLS 5
f'"'":"\7·'~
1 ...•.... ·.· .. ·.' .. ·.· .. · .. ··,·· .. ··.·· ... · ... · .... ·.· .. · .. ··,·.· ..... · ... · ..... ·.· .. · ... · .. ·,· .• · ... · .... ·.· ... · ... • BEAM ········--: <I RELAY .._ __ ill-2.5Y+
TO POWER DISTRIBUTION BOX, PAGE 1
FROM LOW BEAM RELAY, PAGE 5
CURRENT PATH IS CONTINUED AS LABELED. THE ARROW SHOWS DIRECTION OF CURRENT FLOW AND IS REPEATED WHERE CURRENT PATH CONTINUES.
LIGHT EMITTING DIODE
6 SYSTEMATIC TROUBLESHOOTING
TROUBLESHOOTING PROCEDURE
1. Verify the Problem
Operate the problem circuit to check the accuracy of the complaint. Note the symptoms of the inoperative circuit.
2. Analyze the Problem
Refer to the schematic of the problem circuit in the ETM. Determine how the circuit is supposed to work by tracing the current path(s) from the power feed through the circuit components to ground. Then based on the symptoms you noted in step 1 and your understanding of circuit operation. identify one or more possible causes of the problem.
3. Isolate the Problem
Make circuit tests to prove or disprove the preliminary diagnosis made in step 2. Keep in mind that a logical simple procedure is the key to efficient troubleshooting. Test for the most likely cause of failure first. Try to make tests at points which are easily accessible.
4. Repair the Problem
Once the specific problem is identified, make the repair using the proper tools and safe procedures.
5. Check the Problem
Operate the circuit to check for satisfactory circuit operation. Good repair practice calls for rechecking all circuits you have worked on.
TROUBLESHOOTING TOOLS
Isolating the problem (Step 3 of TROUBLESHOOTING PROCEDURES) requires the use of a voltmeter and/ or ohmmeter. A voltmeter measures voltage at selected points in a circuit. An ohmmeter measures a circuit's resistance to current flow. It has an internal battery that provides current to the circuit under test. Disconnect the car battery when using an ohmmeter because the battery voltage will cause the ohmmeter to give false readings. Also, do not use an ohmmeter on solidstate components. The voltage that the ohmmeter applies to the circuit could damage these components.
TROUBLESHOOTING TESTS
Voltage Test
Thistestmeasuresvoltage in a circuit. By taking measurements at several points (terminals or connectors) along the circuit. you can isolate the problem.
To take a voltage measurement. connect the negative lead of the voltmeter to the battery's negative terminal or other known good ground. Then connect the positive lead of the voltmeter to the point you want to test. The voltmeter will measure the voltage present at that point in the circuit.
NO VOLTAGE
E!!.lf.\fb"'bi
~--!..!:.UID SWITCH
.......... ,, ............ -i'l'r
' \ \ 1.5 AD
\ ~ LOWFLUIO ~ itiOicilr_Q_fi
.... , .. Voltage Test
Voltage Drop Test
Wires. connectors. and switches are designed to conduct current with a minimum loss of voltage. A voltage drop of more than one volt indicates a problem.
To test for voltage drop, connect the voltmeter leads to connectors at either end of the circuit's suspected problem area. The positive lead should be connected to the connector closest to the power source. The voltmeter will show the voltage drop between these two points.
'"·'i·'i*""di
[I] POWER DISTRIBUTION
!!!!K
1.5 RD
[]
LOW FLUID
~
-
1.5 RD
~LOW FLUID ~INDICATOR
1.5 BR
• Voltage Drop Test
SYSTEMATIC TROUBLESHOOTING 7
Continuity Test
To perform a continuity test first disconnect the car battery. Then adjust the ohmmeter to read zero while holding the leads together. Connect the ohmmeter leads to connector or terminals at either end of the circuit's suspected problem area. The ohmmeter will show the resistance across that part of the circuit.
BATTERY DISCONNECTED
frullil DISTRIBUTION
~
1.5 RO
mLOWFLUID
~SWITCH
1.5 RD
~LOW FLUID
~INDICATOR
1.5 BR
Continuity Test
Short Test Using Voltmeter
Remove the blown fuse and disconnect the load. Connect the voltmeter leads to the fuse terminals. The positive lead should be connected to the terminal closest to the power source.
Starting near the POWER DISTRIBUTION BOX. move the wire harness back and forth and watch the voltmeter reading. If the voltmeter registers a reading, there is a short to ground in the wiring. Somewhere in the area ofthe harness being moved. the wire insulation is worn away and the circuit is grounding.
HOT AT All TIMES
DISTRIBUTION
(FUSE REMOVED)
mLOWFLUID
~~
~ LOAO 1
·5
nu 'ISCONNECTEO
f/1\llOW FLUID
~INDICATOR
, ... , .a.
Short Test Using Voltmeter
8 SYSTEMATIC TROUBLESHOOTING
Short Test Using Ohmmeter
Disconnect the battery. Ad/·ust. the ohmmeter to read zero while ho ding the leads together. Remove the blown fuse and disconnect the load. Connect one lead of the ohmmeter to the fuse terminal that is closest to the load. Connect the other lead to a known good ground.
Starting near the POWER DISTRIBUTION BOX. move the wire harness back and forth and watch the ohmmeter reading. Low or no resistance indicates a short to ground in the wiring. Infinitely high resistance indicates no short.
BATTERY DISCONNECTED
POWER DISTRIBUTION
(FUSE REMOVED)
LOW FLUID SWITCH
15\~:o:,.,m, LOW FLUID INDICATOR
Short Test Using Ohmmeter
0670-0 POWER DISTRIBUTION
~FRONT OF CAR
r LOWBEAM CHECK RELAY AND RELAY NOISE SUPPRESSORS ARE PART OF THE PRINTED CIRCUIT BOARD
K10 WIPER
CONTROL UNIT
CONNECTORS """"~ C100, C114, AND C115ARE LOCATED ON THE UNDERSIDE OF THE PRINTED CIRCUIT BOARD
D G G~ B G G G G B B S_B_B_S FUSES '"8---5-43 ___ 21-, I LOW BEAM I
C114 l-~---~-C-~~--~~J I CHECK RELAY I L..----------.1 ,.------, I •• IC115 L----...J
K1 K2 K3 K4
NORMAL HORN HIGH LOW
SPEED RELAY BEAM BEAM
RELAY RELAY RELAY r--, I I I • I C100 I I L--J
K5 K6 K7 K8
UN- HIGH UN-FOG LIGHT LOADER SPEED LOADER RELAY RELAY RELAY RELAY
FUSES ~
BBBBD D 8 a BBBB B 66 ' ./
POWER DISTRIBUTION 0670-1
FUSE FUSE NO. NO.
SIZE CIRCUIT NAME SIZE CIRCUIT NAME 1 7.5A Headlights (also fuses 2, 13, 141. 20 30A Heater/Air Conditioning;
2 7.5A Headlights (also fuses 1, 13, 14). Auxiliary Fan (also fuses 3, 18, 19).
3 15A Auxiliary Fan (also fuses 18, 19, 201. 4 15A Lights: Turn/Hazard Warning (also fuse 24);
Active Check Control (also fuses 6, 10, 21, 22, 231.
5 30A Wiper/Washer.
21 7.5A Auto-Charging Flashlight; Glove Box Light; Ignition Key Warning/Seatbelt Warning;
(also fuse 101; Injection Electronics {also fuses 10, 11 ); Interior Lights (also fuses 6, 19, 27);
6 7.5A Stop Lights/Cruise Control (also fuse 101; Radio (also fuses 12, 27, 28); Active Check Control Trunk Light;
(also fuses 4, 10, 21, 22, 23); Active Check Control Antilock Braking System; (also fuses 4, 6, 10, 22, 231; Interior Li!lhts (also fuses 19, 21, 271. Service Interval Indicator (also fuse 10);
7 15A Horn. On-Board Computer (also fuses 10, 12, 23, 271;
8 30A Rear Defogger (also fuse 23). 9 15A Idle Speed Control. 10 7.5A Seatbelt Warning (also fuse 21t;
Service Interval Indicator (also fuse 211; Tachometer/Fuel Economy Gauges
(also fuse 21 ); Gauges/Indicators; Brake Warning System; Back Up Lights; On-Board Computer (also fuses 12, 21, 23, 271; Start; Injection Electronics (also fuses 11, 211; Active Check Control (also fuses 4, 6, 21, 22,
231; Cruise Control (also fuse 6).
Tachometer/Fuel Economy Gauge (also fuse 101.
22 7.5A Active Check Control (also fuses 4, 6, 10, 21, 231;
Lights: Front Park/Tail {also fuse 231; lights: Front Side Marker (also fuse 23).
23 7.5A lights: Dash lights: Front Park/Tail (also fuse 221; lights; Front Side Marker (also fuse 22); Lights: Rear Marker/License; Active Check Control
(alsofuses4, 6, 10, 21, & 22); On-Board Computer
(also fuses 10, 12, 21, 27); Rear DefO!l!ler (also fuse 8).
11 15A Fuel Delivery;lnjection Electronics (also fuses 10, 24 15A lights: Turn/Hazard Warning (also fuse 4).
211. 25 Not Used.
12 7.5A Radio (also fuses 21, 27, 281; 26 Not Used. Speedometer /1 ndicators; 27 30A Interior lights (also fuses 6, 19, 21 ); On-Board Computer (also fuses 10, 21, 23, 271. Central Locking;
13 7.5A Headlights (also fuses 1, 2, 14). Radio/Antenna (also fuses 12, 21, 28);
14 7.5A Headlights (also fuses 1, 2, 13). On-Board Computer {also fuses 10, 12, 21, 23).
15 Not Used. 16 Not Used. 17 30A Sunroof;
Power Windows
28 30A Cigar Lighter; Radio/Antenna {also fuses 12, 21, 27).
29 7.5A FO!l Lights (also fuse 30).
30 7.5A Fog Lights (also fuse 29).
18 30A Auxiliary Fan (also fuses 3, 19, 20). 19 7.5A Auxiliary Fan (also fuses 3, 18, 20);
POWER WINDOW 25A I Power Windows CIRCUIT BREAKER
Interior lights (also fuses 6, 21, 271; Power Mirrors.
0670-2 POWER DISTRIBUTION
.._ G100
2.5 GN/GY
5
r-----,.rt-1
i !.. ______ ....
ABS HYDRAULIC UNIT
FUSE DETAILS
70 BK
6 BK
.5 VI
BATTERY JUNCTION
.75 VI/WT
~ FUSE DETAILS
2. 7e, 2.5i ENGINES - EXCEPT CONVERTIBLE
2.5 RO ""-----1111( 14 OIA GNOSTIC CONNECTOR
FUSE DETAILS
2.5i
10 RD
1.5 VI/BK
POWER DISTRIBUTION BOX
i:''":""i':'~.,~·"""''."""",-""'--...... -._T-~~~~:"-~~ .. ~--1 30 I
CONTINUED ON . I NEXT PAGE 1 ....... .~~~ ................. _______ ~-.. ---·- -------1
10 RD
2.5 RD DIAGNOSTIC 4 RD
14 ~.~~NECTOR c--:·5 RO I. S232 ALTERNATOR
.75 VI/BK
'-v-----7 FUSE DETAILS
3 C240 D
SRS CONNECTOR
(NOT USED) g C200
FUSE DETAILS
4 RD
SEE (I ROUND DISTRIBUTION
2.5 RD
1.5 GN
TO PAGE 0670·5
2.5 GN
FUEL r---, 4 AD
PUMP I 1)111-----------.. RELAvL ____ J
.5 RO
18 .-----, I I I I I I I I I I L.,. ____ J
MOTRONIC CONTROL UNIT
2.5 GN/GY
r--------1 1st I I I I I I
.5 AD
L------- --------------2.5 GN/BU
FUSE DETAILS
.5 VI
4 RO
FUSE DETAILS
2.5i ENGINE CONVERTIBLE POWER DISTRIBUTION 0670-3
~--2 .• 5 jiAD--11( DIAGNOSTIC ..o 14 CONNECTOR
4 AD
4 RO .75 AD
r.::-:1~119 sl ~~;) ,.. ... ,...,...,,...,. ... .-...... , r •· .. · ·j·· OVER ABS I ··•. .. .. . .····•·•·•.·· 3U --
HYilRAULIC '· . . ·.·.·.1 ~ .. ·•·•· ... ···.•·· .•• ·•••.·.· .. • ~ UNIT I . . I I . PROTECTION BR - L· .• . . . ..... RELAY
... ___ .... __ lllilt_J ~-- --
f.9.!M..
FUSE DETAILS
FUSE DETAILS
POWER DISTRIBUTION BOX
i-----------------------------, I Wf. 30 I I CONTiNUED ON I NEXTPAOE I
L----- -----~----~------------1
4 AD 2.5 AD
r-~·S232 J~~ 4RD
TO PAGE 0670·5
SRS CONNECTOR
(NOT USED) g C200
FUSE DETAILS
4 AD
AUXILIARYf FUSE 1 -I
I
'--
-, I
I J
2.5 GN
.75 GN
CENTRAL LOCKING
2.5 GN
0670-4 POWER DISTRIBUTION
POWER DISTRIBUTION BOX
CONTINUED ON NEXHAGE
30
~.5GN (1:~-.--~~~~~----~~----~~~--~~----~------~--~------~~~~~~~~~~~~~~~--~----------~-------T FROM f!.!i PAGE 0670·2, 0670·3
I I ,75 I Gill/
II .. :. 7.6AMP
' ·. ··~ L-t-----~ ~ .75 GN/BK
~ FUSE DETAILS
.75 GN/BK
FUSE DETAILS
4 GN/BA
FUSE DETAILS
.5 BK/YL
START
2.5WT/BK I I I I
2.5 WT/BR I u I ____ 0~~
(NOT USED) (ACCESSORY
2.5 GN/BU CONNECTOR)
2.5 GN/BU ~224
I~ 2.5GN/BU
2.5 GN/BU
3
r"'"'l ~ r--, POWER I ~~ I 1 WiNiiilw
L ' L . r CIRCUIT __ j ..,..,_J BREAKER
4 BK/BU 1 VI/YL 1 VI/Yl .75 BR/YL
2 £ill I I HORN I HORN .-.. • ...... ..,. AH [ ....... , .. LH
1 I I L __ j ___ J
AD
f"'-"'"'"'1 AUXILIARY FAN I NORMAL SPEED I BLOWER RESISTOR ·----·
RD
,.. ... -.,AUXILIARY
I ~~ I I I I L ...... -t
HORN
POWER DISTRIBUTION 0670-5
POWER DISTRIBUTION BOX
·--------~------------------------------.. --~--~""'-···---------~- .... ~~~~~~~~-------.--------~~~~~~~--·-------------------------------~
·-----1.5 GN/ VL
fUSEQ IS AMP
FUSE DETAILS
I l I
31 I -·--------.. ~-....... ____ _. J l C114 1 VL/WT
3 fill I BKI I
BR I GROUND
I DISTRIBUTION r '"'1 AUX FAN
~~SPEED I I BLOWER
L __ j R'EsiSTOR I ~.@!!!.
"'~~-..... ~ LH DUAL c .• ·.·.··· )aEAM ...... ___ .,
I 1
' I I I I I I I I
CONTINi! EO ON NEXT PAG£
.l..L~L~ti;;:,-"-'f-~!f.;_"---1 IYL:~~
1 VLIVI
FUSE ~9 ),&
.... -------~
l.illl
BR I '< .) ~~G I - !:!!!!!I.
GROUND I DISTRIBUTION
I I ·~
.5 VLIBR
22 E.
BK I . '\.!!.!! l I FOG '-/ LIGHT
r--.·."1 INSTRUMENT I ~~ I ·J Li.·- '
0670-6
DISTRIBUTION
POWER DISTRIBUTION
1 RD/GN
FUSE DETAILS
1 GY/BK 1 GY/GN 1.5 RD/WT
2 -------5 -----25 I ill! 1.5 RD/W:
r-"'-, HAZARD 1 1
1 SWiTcH ' --1 · . I
L_ ... .J
.5 GY/BK .75 GY/GN
2 10 r---------~-.,_1 LIGHT I i SWITCH
L _________ .;.. __ -J
INJECTION ELECTRONICS 2.5i ENGINE INJECTION ELECTRONICS 2.7e ENGINE
.. ,ffi:L. fi!I!Jl>~~:---~:--~-~~, ... --~-~~!"""-~7~---!1!'11''"111"_., __ _,_,.. .. _____________ ~ ----l
1.5 RD/BK
FUSE DETAILS
I FUSE 111 15AMP I
I I ----------------· ·---....
2.5 GN/VI
P:-~11!::.·~
2.5 RD/YL 2.5 RD/YL
''"Nil 6 r ,MAIN
1 r FUEL I I PUMP . ·-l----J
2.5 RD ZIB!!t 1 GN/VI
2 .&ill, r--, AUXILIARY
I ,!!!!!:.
2.5 RD/YL RD
.- -,POWER
I tPUMP ,-& ............
I fii'NTENNA
L ...... J 1
r---,CIGAR
1 riGHTER
L----'
AUTOP,ATIC 1IIAI\I$Ml$$10N
.75 GN/YL
3
r--:-.J. L----AUTOMAnc TRANSMISSION RANGE SWITCH
PAGE 6322·0
326e AND ~251 ENGINE, NON·CONVERTt8LE
CONVERTIBLE
MANUAL TRAN$MI$SIOI\I
.75 GN/WT
[--cl L ___ J
.75 GN/WT
.75 GN/WT
.5 GN/WT
POWER DISTRIBUTION 0670-7
fUSE DETAILS: FUSE 10 HOT IN START OR RUN
r---... --1 I
-------------------------, ~BUTION
:~~r r----,K7 IIBOX
I L------
.75 GNIWT
~~-=~:;('•• J U.NLQAOER L. ..... _ RELAY I I
---------------·~--------------......1
.75 GN/WT
C302 ACCESSORY CONNECTOR
.5 GN/WT .5 GNIWT .75 .5 GN/WT .75 GN/WT GN/WT S14
23 f.! 6 ~ 3 r--:_~, ... _ .. -.. --~~-::~-:-~-~--""': I .......... · ... 1 t~~~~~-~~~~,~--.. :-~~~..;;~~---.1 INSTRUMENT CLUSTER 'iiAGEiiii" 0·1, J25e PAGE 6201·2, 325i
4
r ..... ----J·· I I I I I L----ACTIVE CHECK
~ !!!!!.! PAGE 6216 ·2 PAGE 6216 ·3, CONVERTIBLE
[~] SEATBElT WARNING
~ PAGE 6131·0
0670-8 POWER DISTRIBUTION
1.5 GN/BR 1 GN/BR
1 7
r·-~-----------1
L~~---•--------J CONTROL SWITCHES PAGE 6413-0
HOT IN RUN ONLY FR0\1 UNLOAOER RELAY K7
.5 GN/BR
[J HOT WATER
~ SWITCH PAGE 6411-0
4.GN/BR
2 ~
2 GN/BR
2.5 GN/BR
4
r--1 L __ j BLOWER
~ ~ PAGE 6413-0
.5 GN/BR
r-p;l L_ __ j ~I RECIRCULATING AIR RELAY PAGE 6421-0
1 GN/BR
r--, L __ J COMPRESSOR
lliB!ll. SWITCH PAGE 6452-0
.5 GN/BR
. r•rl I .. I .... _ ... .J RH FRESH/ RECIRCULATING AIR RELAY PAGE 6421-0
POWER DISTRIBUTION 0670-9
FUSE DETAILS: FUSE 21 HOT AT ALL TIMES
r- _____ ,.., POWER
.· wur 1 iiiSTRIBunoN
ll· ...• 1.5. AM_.P ._I BOX ~-... ______ .J
.75 RD/GN
32S. . 75 RD/GN I 8319
~~]=---~
lf
3251. · ... NON·CONVI!ftTlliLE
.5 RD/ GN .5 RD/GN
r--l r---1 I I . J I . I L·· . .. 1 , __ ......... . ............. ~ ~ ~ !:!.!ill! L1 G H T
PAGE 6330·1
.5 RD/GN
15 r---: I ·.. .I L .......... ACTIVE CHECK CONTROL UNIT PAGE 6216·2
[1!:001-=--~-=--"""""--·. ~
.75 RD/GN
.5RD/G:~~ r- -, I I L .. _J DOME
.!J.Q!!! PAGE 6330·0
.5 RD/GN
15
[] lliW ~ W!I.!!.!!L PAGE 6216·3
.75 RD/GN
14 .75 RD/GN
CONVERTiiiLE
.75 RD/GN
,--:--, I I
I .. ··. i L ...... ..J GLOVE BOX LIGHT
PAGE 6100-1
.75 RO/GN
.75 RO/GN V .75 RD/GN
.75 RD/GN
C302
(ACCESSORY CONNECTOR) 2 ~
.5 RD/GN
1 g r--l L .... J ~ .M.!!..!!..!l.! PAGE 6131-0
AUTO-CHARGING FLASHLIGHT
2 C1 r---.:; I ••• I L~ .. J INSTRUMENT CLUSTER PAGE 6210·1
Vl
[] !!.!.J!.!.lli RADIO PAGE 6500·0
,,. .... , \ . I -" ~ !!.!U!L PAGE 6320-0
0670-10 POWER DISTRIBUTION
. HOT IN ACCY RUN OR START
1.5 VI/GY
20
1.5 VI/GY
1 ,.. --1
I I . ' L .... J !!A1A!lll SWITCH PAGE 6313·0
.5 VI
1 ,.. ..... ., , .. ·· r L .. ~J ACTIVE CHECK CONTROL UNIT
PAGE 6216·0
HOT IN ACCY RUN OR STAHT
.75 VI/BK.
["" .. 1 t ___ J ~ PUMP PAGE 6160·0
2
[JI MAP READING
!d!!:!I PAGE 6100·1
.5 VI/GN
R
.5 VI/WT
HOT IN ACCY. RUN OR START
1 VI/GN
.5 VI/GN
~~~~~~-~·~ 1 VI/G~
C302 (ACCESSORY CONNECTOR)
[] L. ....... BRAKE SWITCH
PAGE 6J25·0
.5 VI/GN
J r--1 L.--...1 ACTIVE CHECK CONTROL UNIT PAGE 6216·1
r-j-----•,POWER
~ ••..•. · •..• ·· .. • •.. · .. ·.·.· •• £ .. ·• U .. ·· .. ··.·.$· •.... · ••. e ...• • •. • • •. · •. ·• • . ·... ·.···· ... ~ iiiSTiij BUTt ON I U.AMP ·· .. ·. I!ID! L ..... · .... ·.··.. I
-.ti.------..J I I I I I I
CONVERTIBLE rV E~C~Pl CONVERtteU
2.5 GN/BU
8 r--..., L __ j !!ill ~ BLOWER RELAY PAilf 6100·3
'1" I I •
2.5 GN/BU
4 r---1 1 ..... J L..:...:._J
REAR iiEFiJGGER SWITCH PAii"E61 00·4
2.5 GN/BU
4
')J I I I •
£'"""'"'] r .•.. ··.···. ' L ..• I u_..__~
REAR iiEfii G II~ B. SWITCH PAGE 6100·2
POWER DISTRIBUTION 0670-11
FUSE DETAILS: FUSES 8, 12 AND 19 HOT IN ACCY, RUN 011 START HOT IN RUN ONLY FROM UN LOADER RELAY K7
.5 VI
13 g
r---1 ---INSTRUMENT
CLUSTER PAGE 6210·0
.75 VI/WI
X illi (ACCESSORY CONNECTOR)
.75 VI/GY .75 GN/BK
.75 GN/BK
1
f] L_ __ _. [] tJJ !!!!!!!.!1 RADIO PAGE 6500-0
~ ~ ~ ~ ~ SWITCH ,-
~ ~ llMt. ERATURE
~ v
PAGE 6454·0
!!.!!& TEMPERATURE SWITCH P"AGE6454·1
.75 GNIBK
~
.75 GN/WT
~·
.75 GN/WT
18
.75 GN!WT
f"Jfl I J I • L-""'..J INTERIOR LIGHT TIMER £!!!ill!Q!. PAGE: 6330·0 AND 6330·1
.75 GN!WT
4 r ... -, I I t_ __ j MIRROR CONTROL
~ PAGE 5116·0
0670-12 POWER DISTRIBUTION
HOT AT ALL TIMES
,.. I L
'1"' ............. 1. POWER
FIJSil ~l iiiSTiiioUTION 30 AMP · · !!!!,!
............. J 1.5 RD/BK
P-~EOI---I!::Oil-=;-~--· S234
1.5 RD/BK~-.75 RD/BK
1.5 AD/BK
1.5 RD/BK ·-=--!!:iii· ~
1.5 RO/BK
3 C405 ... ~ .. ,--p::;;-.-•-=--=--=-i!!i1
.§lli
.75 RD/BK
Q11 1.5 RD/BK
.5 RD!WT .5 RD!WT
11 1 C503 3 ...--·-, r---, r--1 r~·J I I (NOT I I (NOT 30 USED) L __ J
USED) l_ _ _j L __ J AMPLIFIER BOARD .£lli!!M !Eill.!!.!..!!! PAGE 6500·1 CoMiiiiTER LOCKING !:!.!ill!
~ CoNTiiiii. I!.Mf.!!. PAGE 6581·3 !!!ill CONTROL PAGE 6581·4 PAGE 5126·0 PAGE 6330·0
DIAGNOSTIC CONNECTOR
HOT IN RUN OR START
f .. I ... ................ 1 POWER
tli~!E~J ~·"'"' 1.5GN/VL jC101
6 -u. . 2.61 ~~----~A~~------~
6
1.5 GN/Yl
1.5 GN/Yl 15))~-~~
[
...... .. ............ ,.]OXYGEN 'S'ENsiiii' 'ii"E'ii'i"ER ii'E'i:AY ...... ________ . PAii'IT360·17
.5 GN/YL 1.5 GN/Yl .5 BU/BR .75 GN/YL
2 1 r--1 r·-, [J r---, 87 I
L __ j I L __ J I L ... - ..... 0' C(32' F) IDLE SPEED IDLE SPEED OXYGEN TEMPERATURE CONTROL CONTROL UNIT SENSOR
~ UNIT (MANUAL !!!.lli.!! TRANSMISSION) .!!illY
PAGE 1362·5
2.7eENGINE
16 10 19
.75 BR 2.5 BR .75 BR 2.5 BR WT
I BR
2.5 BR
C140
1.5 BR
2.5i, 2. 7e ENGINES POWER DISTRIBUTION 0670-13
GROUND DISTRIBUTION· (G103)
THROTTLE
~ r---, I t
BAROMETRIC COOLANT MOTRONIC PRESSURE fEMii'EiiATURE CONTROL
IDill!.B ~ UNIT
1. I
L .• J r---, r---, r-1,_ --l '. I I ·.1 I 1 I
I J I I I I
c-- -- SHIELD r----~FDR
DIAGNOSTIC I I DIGNOSTIC CONNECTOR I I CONNECTOR,
.75 BR
L.... . L• · . ..,.j l..--..J 5
.5 BR .5 BR 1.5 BR
.......... ~.·~--· ID.!
2.5 BR
1.5 BR
·-==-=-=1 SHIELD I I fii'ii"iiEF E R EN c E I I POINT SENSOR I 1 SEE PAGE 1362-3 I 1
i----~ ----
1-----I -----"1 SHIELD I I FOR REFERENCE 1 I POINT SENSOR I I SEEPAGE1~2~
I I ~:-:----;~ ----
I I PIN 13,
rl --- -J !~~E ---- 1362-6
====-~~ 1 FOR H IMDTRONIC
-- --;:I~~:JTTROL -- __ PAGE
1362-Z
:::: = =.: ~ !!!Ill!! I I FOR I I TACHOMETER
I I SEE I I PAGE
t--- -~ 6210.4 ----.75 BR .. -------------------------~~------------------------------~ '=' !i!M(ON LEFT SIDE OF ENGINE BLOCK ABOVE STARTER) 2.7e ONLY
- 2.61ENGINE ~-=--=-=1~ I I FOR ENGINE I I SPEED SENSOR I 1 SEE PAGE 1360·2 I I
3f====~ 1-:-_-_--:_..~ SHIELD
1 (F'Dii'ENG 1 NE I I SPEED SENSOR I I SEE PAGE 1360·2
I I -----;~ ...... ___ _
~== =-=~ I I I I I I I I
SHIELD foii'iiX YG EN SENSOR SEE PAGE 1360·1
t----........... ----
F::::::::=.:~~
I I FOR CYLINDER [ •• ·_ ...• -_·······.·.· ... -.•.....• -.· •. •.· •... • ... -.•... · .•.. -....... -..•. ·• .•. -..•. -.. --.... - ........... MOTRONIC I 'IDENTIFICATION •. ·• : _]' CONTROL I I SEE PAGE 1~0·2 ·•·•·•· .. . . . . •. _ •. · .. · ..• ~
fl -- --J -~ ... --~----~ --- -- 19 2 14 24
::: = ==-~!!!!ill! I I FOR CYLINDER I IIDENTIFICATION I I sEE PAGE IJ&0-2 I I ----;:1 ----
1.5 BR BR 2.5 2.5
BR 1.5 BR
r---1 L.t.J
.75 BR
THROTTLE
~
r···.·._· •• -•.•.••.•.. -..•••. ·_· .•. -.J .. ·.·.··.· I . . I I
L ....
.5 BR
1.5 BR
COOLANT TEMPERATURE SENSOR
.......... -:"]• I
L Lt~!t ....
.5 BR
~:::: = =.: ~ !!!!ll.!! DIAGNOSTIC I 1 FOR DIAGNOSTIC CONNECTOR I 1 CONNECTOR PIN 1
I I SEE PAGE 1360-11 19
1.5 BR
I ====J
=====~~ I FOR MDTRONIC ....1. I CONTROL UNIT
·~1 ~.SEE PAGE 1360-11
l:::-= :=::J
===-=~SHIELD I I FDiiiii'NITION I I COIL SEE PAGE 1 l136o-IJ I I I 1 OXYGEN SENSOR
~-----------4-BR ___ Sl-11··--1 BiiiR•I::'IO~jiii=.=_='-~~~[:::~J
0670-14 POWER DISTRIBUTION 2. 7e, 2.5i ENGINES - EXCEPT CONVERTIBLE
FADER DIGITAL AMPLIFIER CONTROL RADIO
FADER CONTROL
DIGITAL RADIO r--1 r--~ r---1 [-~l r-~~J.
'l-' :w:J• ::JJ" J L :" .. Cl_j .:.J_j~" 1 BR/BK1_S4_DO 1 BR~~
, v 9!!.2 ~---Y_.,;;.;c;;J;;oz;;...... '-· ,:.g;=-----,v-WITH SOU tiD t • WITHOUT SOUND SYSTEM I SVSHM
y ~ (ACCESSORY
ABS iiYDRAULIC
!!!ill r--l ·-·~ I! -
6 BR
An !m!! ELECTRONIC ~ CONTROL PROTECTION
r--------] !!!ill AMPLIFIER
r--l r---, I I
L ~-I I I J .._ __
20 34 10
1.5 BR 1.5 BR .75 BR 1.5 BR
CONNECTOR)
1BR .............................................. ~~~~~ .................... .. ._.!ll.!!li
BRAKE FLUID LEVEL SWITCH .----, I I
LHFRDNT ~ LH FOG SIDE MARKER TURN/PARK LIGHT LIGHT LIGHT ,.--......., ' . ' I I
I I I I ._ __ ..J
(~) (~)
BRI BR'f ~.,£ill
\ ·.· } ,...._ __ ; 1
1 BR
1 BR
AUXILIARY FAN r--, I I I I I I
LTJ BR
1 BR
.75 BR
4 BR
1 2.5 BR
•
LH
!!!Q!!. BEAM ..... -,
( .t ,_/
1 BR
2.5 BR
1 BR
lli HYDRAULIC UNIT
r--l I I L J
8
LH HORN
1 BR
2.5 DR
C113 I .!U!!! (ON INNER FENDER, BEHIND LH HEADLIGHTS)
':' ~PARTIAL (UNDER LH SIDE OF DASH ABOVE BRAKE PEDAL)
RH HORN
1 DR
RH DUAL BEAM
,tf':~'!'l'-"'!'1._,\
L :t
\'-·--·~'
1 BR
RH HIGH BEAM ........ , {,_)
1 BR
COOLANT LEVEL ~----l)llllil'7ji5jBiiR-~ ~ I
L----J
RH FRONT TURN/PARK LIGHT ,-----... \
\ I
~---...-~' 1
1 BR
RH FRONT SIDE MAf!KER
RH
LIGHT
,.... ... \ I J
:]"" C127
1 BR
,------, WASHER FLUID , ___ 11(1 I LEVEL SWITCH
a..----.-J
COMBI NA Tl ON SWITCH ---,
I I I
31 I ... .J
.75 BR
.75 BR
1 BR
STEERING C202 COLUMN
GROUND ON UPPER LEFT SIDE OF STEERING COLUMN
2.7e, 2.5i ENGINE -EXCEPT CONVERTIBLE POWER DISTRIBUTION 0670-15
OROUND DISTRIBUTION (G201 AND G200 PARTIAL) ON-BOARD COMPUTER
.!!ill1 ~ ill!!_ MOTOR
1.5 BR
.75 BR 5
.75 BR
1.5 BR
.75 BR
REAR GLOVE BOX AUTO- £!!!!!g, CRUISE WATER
iiEfii"GGER LIGHT CHARGING LIGHT SWITCH SWITCH FLASHLIGHT SWITCH ,. ........ , , ............ , ,. ........ , ~---,
L.J lJ LJ L_l 3 8
.5 BR .5 BR .5 BR .75 BR
1.5 BR
C103
1.5 BR
CONTROL ~ SHUT-OFF AcTiiATiJ R !!!!!!. ............ ..., .---., I I I I
I . I I' .1 L I I
.. :II~~·~-~~ .5 BR gn·--·
.75 BR/ RO 325e
.5 BR 325i
7
.5 BR
C142 (NOT USED)
20 llil
.5 BR .75 BR
BR
INSTRUMENT CLUSTER PRINTED CIRCUIT
.5 BR
.5 BR
.75 BR 8 C200
.75 BR
SEATBEL T
~ TIMER
.75 BR
G200 PARTIAL {UNDER LH SIDE OF DASH, ABOVE BRAKE PEDAL)
NT
RH FRESH/
!!lli!!£.!!:
~ !:.!!ililli!
2.5 BR
4
2.5 BR
LH FRESH/ RECIRCU-
.!M!!ill
C204
EVAPORATOR EVAPORATOR TEMPERATURE TEMPERATURE
BR
BR
BR
~PARTIAL {UNDER LH SIDE OF DASH, ABOVE BRAKE PEDAL)
0670-16 POWER DISTRIBUTION 2. 7e, 2.5i ENGINES - EXCEPT CONVERTIBLE
. GR0UND·r:>ISTJIRIBUTION···(G200·PAR'TIAL 'A.Nt> .. <SSOO)···
(4 ODOR) ~ EXTERIOR INTERIOR RH FRONT ----...A-----"1.
LH DOOR MIRROR OOOR MAP LOCK CONTROL DRIVER'S iiiiNiiLE READING
.!!!!!!!!. llilli!. UNLOCK ill!ill!!! TRUNK I!Mt!!.. INHIBIT CONTROL LID LOCK PASSENGER'S RH DOOR MICRO
MOTOR SWITCH MIRROR SWITCH .!:.!!!.!!.! f!lli.!!!!!!:. SWITCH UNIT MDTDR MIRROR I"''Ci(iii)TOR SWITCH
.75
,~-1 [] ~~]
"" _j .75 BR
.5 BR .75 BR 8
1 BR
.75 BR
.75 BR
.75 BR 2.5 BR
LH REAR RH REAR
~ CONSOLE SWITCH
[!"'· .... !!'~ .. 4
1.5 BR 1.5 BR
1.5 BR
G200 PARTIAL (UNDER LH SlOE OF DASH, ABOVE BRAKE PEDAL)
MAIN FiiTI PUMP
1 BR
2.5 BR
!!!! ~ !!.!!.!!! ,..."':' ... ,
f I
I I L __ J
.5 BR
.75
FUEL TANK LH DOME ill.!!f!! --
r..-.. m I ... · .. I L--.J
.75 BR
LH REAR LH REAR RH REAR RH LICENSE
h!.ru!1
.75 BR
.75 BR .75 BR .75 BR
1.5 BR
RH REAR ~KER
~
.75 BR
!l.!:!.£!!Q!il ~ CONSOLE SWITCH r------l I I L-------' 4
1.5 BR
1.5
REAR REAR LIGHTS DEFOGGER CHECK RELAY .---... r---, I. J I I
I I I I I I I I I I '- .J '---..1
4 C2
2.5 BR
.75 BR
~----~---------~
ACTIVE CHECK CONTROL
2!.!. r---. I I I I
I I ._ __ J 9
.5 BR
3 .75 BR
.75 BR
2.5i ENGINE CONVERTIBLE POWER DISTRIBUTION 0670-17
GROUND DISTRIBUTION (G200 'PARTIAL)
1.5 BR
WIPER MOTOR ,----,
I I I I I
I l.. 31 I I ..,
l'"'l I 5 C109
______ J 1.5 BR
START RELAY r---, I I L_s.!._J
.75 BR
INSTRUMENT SEATBELT CLUSTER ~ PRINTED CIRCUIT TIMER r-----------, r---· I I I I
I I I I I I I I !!_ .... ..,.-. .... .-.!• .. J I 31 J '---
16 C2 20 Cl
.5 BR
.5 BR .75 BR
~PARTIAL (UNDER LH SlOE OF OASH, ABOVE BRAKE PEDAL)
bH REAR WINO OW CONSOLE SWITCH
[-.--.-.. -, . ! I ----.. ...
4
!!!:!...!@!! WINDOW CONSOLE SWITCH r-------, I J I I I . I ..... _____ _. 4 5
1.5 BR 1.5 BR
1.5 BR
.75 BR .75 BR
2.5 BR
G200 PARTIAL (UNDER LH SlOE OF DASH, ABOVE BRAKE PEDAL)
LH FRONT WINDOW CONSOLE SWITCH r--....... -.., I I I ' I .._ ____ _._..J 4 5
1.5 BR
1.5 BR
.!!!!.£.!!!!ID WINDOW CONSOLE SWITCH r------, 1. I
I . . . I L-------' 4 5
1.5 BR
1.5 BR
0670-18 POWER DISTRIBUTION 2.5i ENGINE CONVERTIBLE
COMBINATION SWITCH r---, I I I I I I
l 31 • _ _.
.75 BR
.75 BR
GR()WND DISTRIQ(JTI()N}(Q201· AND G2QO RJ.\RTIJ.\1..) !'' - - •'" ., - - - - --- -- - < ' - -->-- ---- _, ___ .. _--- ' '
WIPER/WASHER SWITCH
COLUMN GROUND ON UPPER LEFT SlOE OF STEERING COLUMN
REAR GLOVE BOX AUTO-DEFOGGER LIGHT CHARGING LIGHT SWITCH SWITCH FLASHLIGHT SWITCH r---., [--1 r-.. ., ,---, I ! I I I
I I I I
I --..J L __ J I :
L--..J L ...... J 3 8
.5 BR .5 BR .5 BR .75 BR
1.5 BR
1.5 BR
CRUISE
.5 BR .5 BR
~
.5 BR .5 BR
S228
.5 BR
Ct42 (NOT USED)
20
.5 BR .75 BR
BR
ON- BOARD COMPUTER RELAY
RH FRESH/
!!l£!!!£!!:
CIGAR LIGHTER
9 C204
2.5 BR
4
2.5 BR
LH FRESH/
~ ~
~
EVAPORATOR EVAPORATOR TEMPERATURE TEMPERATURE REGULATOR
BR
BR
6200 PARTIAL (UNDER LH SIDE OF DASH, ABOVE BRAKE PEDAL)
LH DOOR LOCK MOTOR
[---1 ___ j 5
.75 BR .75 BR
DRIVER'S MIRROR
r ... -... .., . . I
I I I I L ..J
BR
2
DRIVER'S EXTERIOR ODOR HANDLE SWITCH r--, Lli-J
1 BR
2 fill_
J5BR J5BR ............................ ~.~--------------------------.. 1
8502
.l5 :R' C405
.75 BR
Jl .lim PARTIAL (UNDER LH SlOE OF DASH, ABOVE -= BRAKE PEDAL)
.75 BR
AUXILIARY FUEL PUMP .... ---, I I I I I I I I L __ .J
LH LICENSE
!:!Q!!! , ........ , \.../
.75 BR
!:..!!..ill!! !:!i!!I ASSEMBLY
~--] L.!'-
3
1.5 BR
FUEL
~ SENDER
r--.., I I I I L __ j
""L .___..75BR
S327
1 BR
I.!ll!HK .!J.!iHl SWITCH .---, I I
I I I I '---..J
BRIVI
.75 BR
1.5 BR
2.5i ENGINE CONVERTIBLE POWER DISTRIBUTION 0670-19
~ !J.Iilil ASSEMBLY r---, t I
IL···· 31 I ___ .. 3
1.5 BR
RH LICENSE
!.!!l.!!.l ... -, I J \...,;.;
.75 BR
GROUND DISTRIBUTION (G300 AND G202)
RH REAR Si"ilE'Miiii K E R LIGHT
....... , f I
'-"
.75 BR
Mru!i FUEL PUMP
r--J L--
2.5 BR
!llil.!:!. IDll. !!.!!!! LIGHT ii'SsEMBLY
[] 2
.75 BR
REAR LIGHTS CHECK RELAY r---, I I I I L ... _..J
4 g
.75 BR
CONVERTIBLE TOP POSITION
~
~--~ I I
r-----1 I I
'-· I'".J L J
.75 BR/8:1:~:~ 3 ,,
BR
.75 BR .75 BR/BK 2.5 BR
.......................................... ~~Jl~~-~ ................ .. ":" g (UNDER LEFT SIDE OF REAR SEAT
BACK REST)
2.5 BR
* §l!!l (BELOW RH SIDE OF REAR SEAT)
(NOT USED)
g!!§.
DR
1230-0 CHARGE 2. 7e ENGINE
10 RD
BR
•!U!!!!
' I I POWER I !li$TRI8UTION l I .· .· .... ·· . I
l_ _____ J r I I ! I ' . I L __ ..J AUXILIARY
flli
DIAGNOSTIC CONNECTOR
mffl• ~ 6 ~ C101 ,-
1 .5WT/BK I
I 6 C240
SRS CONNECTOR (NOT USED)
10 AD
30 -l STARTER
I I I I I FILTER L--·--j CAPACITOR
.5 RD
3 £ill. SRS CONNECTOR (NOT USED)
DIAGNOSTIC CONNECTOR
14
2.5 RD
4 RO
.75 BU ,. ___ .7ii5ii8iiU ____ ( 12
DIAGNOSTIC
... CONNECTOR
NOTE
CHARGE INDICATOR PROVIDES EXCITATION CURRENT TO FIELD COIL. RESISTOR ALLOWS ALTERNATOR TO CHARGE IF BULB BURNS OUT.
10 RO
70 BK
BR
r------, POWER DISTRIBUTION
I ....... · . I BOX
·····~.. I 4 RO S232
' I • POW~R I ~ DISTRIBUTION I
I . .·· . . I !;._ .. ____ ..
NON; CONVERTIBLE
20 BK
4RO
.5 RO
3 ~ SRS CONNECTOR (NOT USED)
DIAGNOSTIC CONNECTOR
6
I .5 WT/BK I
I
5WTI~:~: &101
6 £M!! SRS CONNECTOR
(NOT USED)
10 RO
4RO
2.5i ENGINE CHARGE
r------3'i ------"'"'!IGNITION
I SWITCH I
I I
I $tART
I I .· . 16 .. _ ........ __
I I I I I I ;......;. _______ ......
ANTI LOCK
--·7iiS.iiBiiU_ ..... BRAKING SYSTEM (ABS)
• __ ii.7ii5iiiBU ____ I(lZ DIAGNOSTIC
CONNECTOR
NOTE
CHARGE INDICATOR PROVIDES EXCITATION CURRENT TO FIELD COIL. RESISTOR ALLOWS ALTERNATOR TO CHARGE IF BULB BURNS OUT.
1230-1
1240-0 START 2. 7e, 2.5i ENGINES EXCEPT CONVERTIBLE
10 RD
70 BKI
BR
AUTOMATIC TRANSMISSION POWER DISTRIBUTION BOX r-------... -... __,, I G!JI9. I
.75 GNIWT
4 RD 4 RD 4 RD 9
111 'i S232
! r---... -------- O .. .,. ...... ---------... - ... IGNITION I I . .·.· ~~
I I I I I POWER DISTRIBUTION : I I L. -----------...... """"'-----~-, I I > ' '•''. ' t
14 2.5 GN 2.5 GN 2 2.5 GN START ~ ··- '"' ·• ''"''"' ·•"·· ·• · ·• ·· ·• . I
15 C114 IS213 C200 liS ···.. •.· ..¥... .· . . . . .K . . I . . . · ... · .... · ·· .. ... ------..~'--7i)liilliiile~ .····•···. . . . . .PH .·. stARr . 11 or f I
- - - ' ACCV ... · ACCY 1 I 1\VH . . . HUN I
row£n PI$Ti118UTION
POWER DISTRIBUTION
NOTE UNlOAOER RELAY COilS ARE GROUNDED THROUGH STARTING MOTOR
2.5 BK CRUISE CONTROL
1-..;.;._: ________ ~ ... ----~----------tlllli.oilfw ___ J
EXCEPT WHEN STARTING. WHEN STARTING, BATTERY VOlTAGE IS APPLIED TO BOTH SIDES OF UNLDADER RELAY COILS AND RELAYS ARE DE·ENERGIZED.
20 BK
DIAGNOSTIC CONNECTOR 2.7e ONL V
14
2.5 RD
.5BKIYL ~ ~--a.~~--~-~e~~~~~~
TO INSTRUMENT~§ BK/VL ' .5 BKIYL 5 CLUSTER PAGES '01111~=-=-l!eiiil-~.e:;-(( (NOT USED) 1360-4, 1362-2, 2.5 BK/YL C240 3435-0,6210-4, 18 !ill!.!. SRS CONNECTOR 62111-5, 6581-3, 6581-4 2.5 BK/VL
Ul
2.5 BK/VL
.75 BR
HOT IN RUN OR START
BACKUP LIGHTS
INJECTION ELECTRONICS: 2.5i PAGE 1360·8 2.7e PAGE 1362·5
TO MOTRONIC CONTROL UNIT PAGES 1362·2, 1362·3
COOlANT TEMPERA TUllE ... -SWITCH
10 An
BR
HOT IN RUN OR START
------~~--- ~-~~----, I 4 RD
~ 1.6 AMP
I ~----------~·--------------
...... _J
2.7e, 2.5i ENGINES
4RD 9 4 AD
NOTE UNLOADER RELAY COILS ARE GROUNDED THROUGH STARTING MOTOR EXCEPT WHEN STARTING. WHEN STARTING. BATTERY VOLTAGE IS APPLIED TO BOTH SlOES OF UNLOAOER RELAY COILS AND RELAYS ARE DE-ENERGIZED.
EXCEPT CONVERTIBLE START 1240-1
MANUAL TRANSMISSION
2.5 BK/Yl
.5BK/Vl ~
~------=---~·~~~~~~-.5 BK/Vl /l'lll!ii~.ii'5!!:83Kii./Yel:0.~..1(5 ((NOT USED) DIAGNOSTIC
CONNECTOR
TO INSTRUMENT~ CLUSTER PAGES 1360-4, 1362·2, 3435-0, 6210·4, 6210-5, 6581-3, 6581-4
2.5 BK/Yl C240
18 IC101 SRS CONNECTOR
2.5 BK/YL
2.&1 2.7e
2.5 BK/YL
2.5 BK/Vl
TO MOTRDNIC
p~=--~-!::01··~5 ~BK~/~YL~~-I!::il-=-u~ CONTROL UNIT COLD START PAGES 1362-2,1362-3
.5 BK/YL
r-"t=----------------.-.-.· ... -.............................. _ .... mw.;,;:.-, THERMO-(IPEII AbOVHS' F!W Cl TIME
SWITCH
1240-2 START CONVERTIBLE
, AUTOMATIC TRANSMISSION
POWER DISTRIBUTION BOX
10 RD
20 BK
BR
=
.75 GNIWT
2.5 BK/YL! C241
.5 BK/YL S2JJ 2.5 BK/Yl I-~~~.-5 ~BK::ii/Y.L-=:;-~/~ I.""" .5 BK/Yl .........
SRSCDNNECTDR 5))~-I!!:::OI..!!:i:iiiil!i::-EOI~v ~ (NOT USE D) 2.5 BK/YL
TO INSTRUMENT CLUSTER PAGES 1368-4,3435-0, 6218-5, 6581-4
... lO•R•O .. ~cHARGING SYSTEM
2.5 BK/Yl
18 ill.!.
2.5 BK/YL
,, ""' l"" 11
DIAGNOSTIC CONNECTOR
NOTE UN LOADER RELAY COILS ARE GROUNDED THROUGH STARTING MOTOR EXCEPT VIII EN STARTING. VlfiEN STARTING. BATTERY VOLTAGE IS APPLIED TO BOTH SIDES OF UNLOADER RELAY COILSANO RELAYS ARE DE ENERGIZED.
.75 BR
HOT IN RUN OR START ·----•1 POWER WU! ... · ·. ·. . . DISTRIBUTION 7.5AMP lli
' ------.J
.75 GN/BK
.75 GN/BK
.5 BR/BK
42
BACKUP LIGHTS
r-----.J MOTRONIC PARK(
l NEUTR.AL ~ INPUT ll!!!J
-----
10 AD
20 BK
BR
CONVERTIBLE START
MANUAL TRANSMISSION
HOT IN RUN OR START
NOTE UN LOADER RELAY COILS ARE GROUNDED THROUGH STARTING MOTOR EXCEPT WHEN STARTING. WHEN STARTING, BATTERY VOLTAGE IS APPLIED TO BOTH SIDES Of UNLOAOER RELAY COILS AND RELAYS ARE OE·ENERGIZEO .
• 5 BK/YL S2ll
2.5 BK/YL
~~~~/~·'-..·~~--~5 TO INSTRUMENT I .5 BK/Vl CLUSTER PAGES ~-1!!::01-~~·5~8•K/~Vl~.e:o-- iiMif( (NOT USED) 1360·4, 3435·0, 2.5 BK/Vl C240 6210·5, 6581·4 18 C101 SRSCONNECTOR
... 10i1Riii0iiii~CHAAGING SYSTEM
2.5 BK/Vl
2.5 BK/Vl
11
DIAGNOSTIC CONNECTOR
1240-3
1360-0 INJECTION ELECTRONICS
, ENOINI; BLOCK .• DIAGRAM : HOT AT All TIMES
IS j
II 4 't IGNITION ~ 3 ' I 'l
PRIMARY 1
SECONDARY
2.5i ENGINE
DIAGNOSTIC CONNECTOR
1 19 r.,.-1 OXYGEN
::-1;1 ~ LI_J illlli!!!. ~- )l'j---.. \._ ,_ _SHIELD
I.,. ,,---,-. ·--- -•....-t•--... .. __ •
-1 \ I--'..' I ,: __ ) SHIELD III-I I
·--~ ••••·------]~~~------------••••••••••••••••••••••••••••••••~---•-••••~ • ·---2~ · ---2 ••••'! · ••• , MOTRON11 1 START TIMING AIRIN~U CPMMO!l AIR ·... REFMNCe I~~!!!!!. I INPUT CONTROL TEMPERATURE . flOW OUTPUT I ~ I INPUT I UNIT I 1---1 · CHECI!. PRESENT I 'I UiGINE ENGINE FUH I'
PROGIIAMMINO LIGHT SpUD RATE I TXO RXD VOLTAGE CONTROL OUTPUT OUTPUT I
L--------------------55 -------~ -------jg -------------~r-----~---3~-------------------------J
f-- ------ ----- --!INSTRUMENT
CHECK ~ 'CLUSTER ENGI!t£ TACHOMETER -INDICATOR fUEL ECONOMY
l--------~~~~~----J 20 18 15
DIAGNOSTIC CONNECTOR
HOT AT ALL TIMES
HOT AT ALL TIMES
r----m~--------~!---~ MAIN
RELAY
es 81
HOT IN RUN ONLY FROM
UN LOADER RELAY K7 HOT IN RUN OR START
2.5i ENGINE
I I
HOT AT ALL TIMES
·---·
INJECTION ELECTRONICS 1360-1
ENGINE BLOCK DIAGRAM
HOT IN RUN OR START
r---~~~--------------~,5~·----,0XYGEN
AUXILIARY
t.!!.ll
81
SENSOR
HEATER
RELAY
4 r------- ... _, OXYGEN
I I SENSOR .--L~ .. "--,._--J ~J --- 2
.... ~ SHIELD
! 1---l- 1-I --- I c ) """"----'
r ___ .:,s ...... !}_ _ __________ .!.a ______ 4.!!.--------------.... -~ .. -------------------------23 _____ l!J ......... :!i} _____ , MAIN .PQWER POWER AIC FUEl OXYGEN OXYGEN SENSOR I MOTRONIC RELAY INPUT INPUT ON PUMP SENSOR INPUTS CONTROl CONTROL INPUT IIELAV HEATER UNIT
CONTROL CONTROL --
SOI.Ib$TATE
GROUND$ COOLANT CLOSE !I WIDE OPEN TEMPERATURE THROTTLE THROTTLE
--~-------u ---------24 INPUT INPUT INPUT --~~~--~~~~-~-~-~~~~~~,5 --------~-------12 --------,3 -~-~~~~--~ 2
r-- ... ] COOLANT
I . ·. ·. fEMiiEiiii TU R E I• · . SENSOR I · ... --L_,.. __ _
... '!"'!"'"----~"" THROTTLE
~
1360-2 INJECTION ELECTRONICS 2.5i ENGINE
ENGINE!BLOCK DIAGRAM
HOT IN HUN OH STAHT
FUEL INJECTORS
._ __ ·,·---· ... --,·---·
r-+---+--.cVLINOER
IDENTIFICATION
~ -
HOT IN RUN OR START
r······ L L~~-~: .. : .. ~-
. ----- ...... l.·.·. AUTOMATIC TRANSMISSION RANGE SWITCH
I , ... _____ __,
HOT IN RUN OR START
r-r.., EVPORATIVE
II .J
!.!!.!!. SPEED ACTUATOR
19
1.5 BR
2.5i ENGINE
HOT AT ALL TIMES
2.5 GN 2.5 GN §ll1 POWER
·----·----... --.... DISTRIBUTION
DIAGNOSTIC CONNECTOR
1 BK
~
SHIELD filii.----
' l \ ........ ~,-\_, __ ' I
1.5 GN
I"'T.!~----~:;......, IGNITION COIL DISTRIBUTOR
2.5 BK
~ ) SHIELD
.. --.:',f-j --.- SPARK PLUGS
----·S105
t - DIAGNOSTIC .: __ :} ~ CONNECTOR
I I I zo 1s
2.5 BK I I
INJECTION ELECTRONICS 1360-3
AIR FLOW
~
~
LIGHT ~ FUlL
lOAD Alii HOW LOAD
vrnc
I INlET TEMPERATURE
4b 28 1 12
!
.5 GY/BU .5 GY/VL .5 GY
.5 G Y/VI
S113---«i:11::-J .5WT/VIf: --::,:,]:
l BR fll9 r----, OXYGEN 1 55 13 llil•-•••at411---tl · I SENSoR' r--TIMIN'oeoNrR'Dr------------------"Txo ______ "Rxii-----;R'7m;t""----c;;;;;o'N---'Aiii""--iiif£Rr.;&el MOTRONIC
3 L,. ___ J i · TEMPERATURE FlOW OUTPUT ~ I INPUT !!!!!!
44 .. 26 1 ' 12
4 BR ' I ENGINE PROO!IAMMI.NO
I . ··••••· · .•. ·.·.•······ .· .... .•. ·. • ... . . . . . . . . .. · . St't£11 OUWUJ .· .. ·.·.•· ·••·· ·. . •··· VOLT All~ . .•. . ·. .. I .,.,.._..,_,.. ... ___ .., _____ .., ____________ .., ______ ~;B:~;~-:1::------~:~::-~-------------• .75 BK
18 TACHOMETER/ FUEL ECONOMY GAUGE
DIAGNOSTIC CONNECTOR
1360-4 INJECTION ELECTRONICS 2.5i ENGINE
11!.11.ii.ii"'Mfi "'I ______ , POWER I ,, __
I .. · .. f·.U. § .. t.··~ .. ~. · ... '"'01:"-ST'-'R""IB""U"'-T:..::IO;.:.:.N i ··.·MA . I!!!! L .. ------..J
1 RO/GN FUSE S319 eaEaE~ DETAILS
.5 RO/GNl 2 £!.
-~-'io- .,,..,.. ... -.----,INSTRUMENT SERVICE l CLUSTER INTERVAl I---
1 INDICATOR I I. 30 . I l--- ------- _,.,
.5 RD/BK (NOT USEO) 23 r----~o--CJ
.5 RDIWT
HOT AT ALL TIMES
r~:::-t------,J·.~~~~~N I ,b"""' .~;;J::~{!~~--
2.5 G~IC200 POWER SZ13 __ .. DISTRIBUTION
.75 GN
24 IC103
.75 GN
2 IC235
.75 GN
.75 GN
.5 RDIWTr· 8201
CHIME
1 Ifill. 3 £!. 3 C2
MODULE o--r-r--------\---------• ON-BOARD I I COMPUTER 1 CODE I RELAY BOX I TO HOIIN ------------ RELAY 14 I RELAY f'- - )f)-~~-~
~-~!.!;,..,..,.. .,.,,..,..,.. ........ ~-----------~ C2 .75 GN/RD
4 £.1 (NOT USED)
2 ill!
.75 GN/RDI
1240-0,1240-1 2 C104
FROM IGNITION SWITCH PAGES
.5 RDIWT .5 BR/BU
I INTERVAL I~ I I CONTROL I PRINHO I I UNIT I SO CIRCUIT I I ~-- -----------~ L---------J 22JCJ
.5 BK/YL
6 3 22 i---~-------------·----i'o"""'--· ON·BOARD I KL 30 COllE H I COMPUTER I START MODULE I INPUT ---1 I
·-------------------------~
2.5i ENGINE INJECTION ELECTRONICS 1360-5
HOT AT All TIMES
.5 RD
·-rr---_._-.-__ · .--.. _--.-.. -.. _--_ .. -_.···_··r•.···o·-.-~.-_.·_-.. -.-... ·.· __ -.,_ .. _._· . .!8.!!! I . . ·~ I ------------ · I I . · · !.~ I I · · · · •· ·· · · · I
! ......... ~ ---1~---U ......... J
.5 GN
1.5 RD/BU
.5 RDIWT
TO S112 PAGE 1360·8
TACHOMETER/ FUEL ECONOMY GAUGE
.5WT/YL I I
.5WT
.5 RD
.5 BR/GN
4 RD
1.5 RD
36 37 32 18 3
,-------.-. -.... _- ... ,.. __ ... _.-_··. -. ._- .... -.... _·· .. -.-.... -._ .. ·.·.~.:,-.-~--._ ... · •. · ..• -.•.. · .•. ·._"" .. ·.-:· -.-. ·_.·.~.-... ·. - .. _ •. -._··.··· ...... -.· .... -.· •... -.. - ---.-... 1·. MOTRONIC MAIN POWER · PRU£Nl ·· POWER . fUSL I RELAY INPUT FUEL < INPUT . . PUMP . ~ I tOtllROL RAn • ·. • RE~AV I !!!!!! I · ·· . OUTPUT • COtlTiiOL I I · · · I I I L------~---~---------~-----------------J
2.5 RD DIAGNOSTIC , ______ IIIII( 14
CONNECTOR
lf!!ll PUMP
~
zllli!. 1.5 GNIVI 13
I 2.5 GNIVI
ri------, POWER ~ 1 "iiiSriii'BUTION
l !& f ruJ.!. - ______ _. 2.5 GN/VI
CONVERTIBLE NON·CONVERTIBLE
2.5GNIV•T
~--~~-~· 1 GNIVI
2.5 GN/VI
2.5 BA
MAIN FUEL
~
1 BA
2.5 GNIVI
2.5 BR
2.5GN/VIl SJ41
1 GNIVI~-AUXILIARY r--., FUEL
f.!ill. I I TANK PUMP I I SENSOR - I ·a-
'--'"'- . • L---....
""' 1 BR
§ill' I BR
-~
1360-6 INJECTION ELECTRONICS 2.5i ENGINE
FROM
1 RDIWT
.5 RO/WT
.5 RD/WT .5 RDIWT .5 RDIWT .5 RO/WT
!!!.!! SPEED ACTUATOR
1 WT/YL
1 BR 1.5 BR GRDUNO
Slll • ----... 4· DISTRIBUTION
4BR I r--1'-----..1!1'--.cYLINDER
IDENTIFICATION
illill!!! ·:·--_:--
A.G103 --
(NOT USEOI
2.5i ENGINE INJECTION ELECTRONICS
HOT IN RUN OR STAnT DIAGNOSTIC CONNECTOR
16 .................. :"~ POWER
fUI£9 ~ iiiSTRTBUTION 15 AMP I !.!!.! ~-~----J
1.5 GNtWT 1.5 GN/Yl 6 C101
2.5GNNH
; ~S702
2.5 GN/WT
.5 GNIWT ~=-:::;~~
23
TO OXYGEN SENSOR PAGE 1360·6
,~ ~ HEATER RELAY
A/C COMPRESSOR CONTROLS
1 BUtWT
40
2
.5 BR
1360-7
1360-8 INJECTION ELECTRONICS 2.5i ENGINE
NON-CONVERTIBLE
HOT IN RUN OR START
r------
1
I
---------------------~-,~ · I DISTRIBUTION
L----.75 GN,WT
.75 GN,WT
FUSE gge~~--.. DETAILS
.5 GN,WT
r- --------,INSTRUMENT
I . . . "CHECK. 'I CLUSTER I~ENGINE" I W i'NiiiCii'ToR I L_ _ ______ _!
.5 BR/BK
FUSE 10 1 !!!!.! 7.$ AMP I
-------, I r--ar,& t I I YNbOAO~Q I I I !liW.
I I
L , ___ ...
_.,.:...;....;,_.;. ________ __
.75 GN/VL
J r-------
1 '\':-L~--------
.75 GN/BK
............ l·. AUTOMATIC TRANSMISSION I RANGE SWITCH
I
I I ______ ....,..
.75 GN/BK
START: AUTOMATIC
12 I CIDI
.5 BR 2 I ill! .5 R 0/BU
15 42 ,..-----------------------------------------.. MOTRONIC 1 "CHECK ENGINE" PARK/NEUTRAL II CONTROL I LIGHT CONTROL INPUT ~---1 UNIT I --1
I I I I I I L----------------------------~------------J
CONVERTIBLE
HOT IN RUN OR START
~------------------------,~ DISTRIBUTION
.. -------1
i f!W..l1 !!!!.!
FUSE DETAILS
.5 GN,WT
I ._ ____ ... _
.75 GN,WT
1-SAMP
---------i I II ..... ,..,.., K7
1 86 1 -1 I .. I UNbOADER
I I I !WAX L_::::~--------
.75 GN,WT ~~~~·~~~~~~~~
gg 1 1 CJOI
,.,~,J-r- --------,INSTRUMENT
II . I CLUSTER "CHECK ---
1 ~ E. NG.IN·E· •.•.· I W iN'ili'CAToR
r------- ............. lAUTOMATIC I TRANSMISSION
I I~ IRANGESWITCH
I 2... /l!np I I ~ I I o I I I ~------~-~ -----~
I .... _ I I
--------J 9
.75 GN/BK .5 BR/BK
START: AUTOMATIC ::AI £!.!!.1 .75 GN/BKI CIJI
.5 BR/BK
15 42 r---------------------------------IMII!I~--- ... --..., MOTRONIC 1 "CHECK EtiGINE" PARK/NEUTRAL I C I liGHT CONTROL INPUT I J!!ill!Jll I I UNIT ·-1 I I I
l . I L-~-------•--------------------------------
1360A-O INJECTION ELECTRONICS
CIRCUIT OPERATION The Motronic Control Unit uses signals from engine sensors and switches to regulate spark, fuel injection, and exhaust emissions.
The Control Unit receives input signals from the following components:
• Cylinder Identification Sensor • Engine Speed Sensor • Oxygen Sensor • Coolant Temperature Sensor • On-Board Computer Relay Box • Ignition Switch • Automatic Transmission Range Switch • Throttle Switch
The Motronic Control Unit determines engine speed and piston position from the pulses transmitted by the Engine Speed Sensor.
The Oxygen Sensor supplies a varying voltage to the Control Unit. The voltage varies as the air/fuel ratio changes from lean to rich.
The Coolant Temperature Sensor is a NTC thermistor. The resistance value of the sensor decreases as the temperature of the engine coolant increases.
The Throttle Switch signals the Control Unit when the throttle is opened or closed.
When the On-Board Computer or Fault Code System is activated, the On-Board Computer Relay Box interrupts power to the Motronic Control Unit. The ignition and injection signals are disabled and the car will not start.
2.5i ENGINE
The Motronic Control Unit controls the following outputs:
• MainRelay • Fuel Pump Relay • Ignition Coil • Evaporator Purge Valve • Idle Speed Actuator • Fuel lnj ectors • Engine speed signal • Oxygen Sensor Heater Relay
The Motronic Control Unit determines the ignition timing, dwell angles, and amount of fuel to be injected from the input sensors and switches.
SYSTEM DIAGNOSIS • Check that the Starter System is in perfect
condition (battery charged, starter and ignition interlock are good).
• Check that the ground connections between the body and the engine wire harness are good.
• Check that engine is within specifications mechanically (timing, compression, etc.).
Connect the Service Tester and perform the Diagnostic Check (0160A-00) in 1988 E32 "7" SeriesETM.
• If aD ME Fault Code is present, print out the DME Codes and continue.
• If a Momentary (intermittent) Fault Code is displayed, the normal diagnosis cannot be followed. Use the following special procedure.
a. Visually inspect all related wiring. b. Print out conditions recorded by
the Service Tester (engine speed, engine temperature, etc.).
c. Try to reproduce the conditions recorded by running the engine or driving the vehicle.
• Use the Service Tester to read the Fault Codes again.
• If the Fault Code is now shown as Actual, go to the Symptom Table.
• If the Fault Code is again listed as Momentary, check the wires. Replace the component related to that Fault Code.
• If the Fault Code is not present, but customer reports a problem, replace the component related to that Fault Code.
• If any of the following DME Fault Codes are present, follow the diagnosis given on the Tester Display. DME Fault Codes: 01, 04, 22, 29, 37, 44, 45, 47, 52, and 53.
• If any other DME Fault code is present, refer to the Symptom Table.
Caution Remove or install the Motronic Control Unit only when the Ignition Switch is OFF. Probe the Control Unit electronic connections only with the Universal Adapter connected.
Symptom Table
• DME Fault Code 05 Evaporative Purge Valve Is Present. Refer to A, page 1360A-1.
• DME Fault Code 07 Air Flow Meter Is Present. Refer to B, page 1360A-1.
• DME Fault Code 08 Cylinder Identification Sensor Is Present. Refer to C, page 1360A-1.
• DME Fault Code 10 Oxygen Sensor (Lambda Control System) Is Present. Refer to D, page 1360A-2.
• DME Fault Code 16 Fuel Injectors 1-3-5 Is Present. Refer toE, page 1360A-2.
• DME Fault Code 17 Fuel Injectors 2-4-6 Is Present. Refer to F, page 1360A-3.
• DME Fault Code 28 Oxygen Sensor Is Present. Refer toG, page 1360A-3.
A. DME Fault Code 05 Evaporative Purge Valve Is Present
Fault Code 05 sets when the Motronic Control Unit detects a short at termina15.
Al. Disconnect the Evaporative Purge Valve connector. Connect a voltmeter between RD/WT and BR wires. Turn Ignition Switch to RUN. Simulate Output (01-300-305).
• If voltmeter cycles between battery and 0 volts, replace Evaporative Purge Valve.
• If voltmeter displays 0 volts continuously, leave voltmeter connected and gotoA2.
2.5i ENGINE
• If voltmeter displays battery voltage continuously, check/repair BR wire for a short to ground. If wire is 0 K, replace the Motronic Control Unit.
A2. Remove Motronic Control Unit connector. Connect Universal Adapter to wire harness of connector. Connect a fused jumper between termina15 of Universal Adapter and ground.
• If voltmeter displays battery voltage, replace Motronic Control Unit.
• If voltmeter displays 0 volts, check/ repair RD/WT wires for an open.
B. DME Fault Code 07 Air Flow Meter Is Present
Fault Code 07 sets when the Motronic Control Unit detects a short or an open at terminal 7.
Bl. Disconnect Air Flow Meter connector. Turn the Ignition Switch to RUN and measure the following voltages at connector.
Measure Between Correct Voltage
GYwireand Approximately Ground 5 volts
GYandGY/YL Approximately wires 5 volts
GY andGY/BU Approximately wires 5 volts
• If any voltage is incorrect, check/ repair associated wires and connections. If wires and connections are OK, replace Motronic Control Unit.
• If all voltages are correct, go to B2.
INJECTION ELECTRONICS 1360A-1
B2. Reconnect Air Flow Meter connector. Remove cover from connector. Measure voltage between GY/YL wire and ground while moving the intake flap manually.
• If voltage varies between approximately 0.5 and 4.5 volts, check/repair G Y /YL wire for an open. If wire is OK, replace Motronic Control Unit.
• If voltage does not vary between 0.5 and 4.5 volts, check/repair GY/YL wire for a short to ground. If wire is OK, repair/replace Air Flow Meter.
C. DME Defect Code 08 Cylinder Identification Sensor Is Present
Defect Code 08 sets when the Motronic Control Unit detects an open, short to ground, or a short to battery at terminal 8.
Cl. Disconnect Control Unit connector. Measure the following resistance values at connector.
Measure Correct If Resistance Between Resistance Is Incorrect
Check/repair
TerminalS YLandBK
and Ground· Infinite wires for a short to ground
Check/repair YLandBK wires for an
Terminals 8 Less than open.
and31 1ohm If wires are OK, replace
Cylinder Identification
Sensor • If all resistances are correct, go to C2.
1360A-2 INJECTION ELECTRONICS
C2. Replace Cylinder Identification Sensor. Clear Fault Memory (01-999). Run engine.
D. DME Fault Code 10 Oxygen Sensor (lambda Control System) Is Present
NOTE: If other DME Fault Codes are present, repair them first before continuing with procedure.
Fault Code 10 sets when the fuel mixture stays beyond the given parameters of the Lambda Control System.
The display on the Service Tester reads "Short to ground" or "Short to battery."
"Short to ground" indicates that the system is operating very rich.
"Short to battery" indicates that the system is operating very lean.
Dl. Clear Fault Code 10 from memory by pushing (999).
• Run engine under varying load conditions. If Fault Code 10 sets again, proceed with step D2.
D2. If Fault Code 10 is present, check the following common items.
2.5i ENGINE
Short To Ground Short To Battery (Running Rich) (Running Lean)
Engine oil diluted Air leaks at: with fuel - Crankcase vent Operation of purge hose valve - Idle valve hoses Charcoal canister - Rubber boot DME Main Relay between AFM & Fuel Pump Relay throttle housing
Stuck open - Sealing of injector injectors rubber rings at
Fuel Pressure intake manifold
Regulator - Clogged injectors
Pull off the vacuum - Insufficient Fuel
hose from the Fuel Pressure Pressure Regulator Regulator, fuel
If you find fuel pump, pinched inside the hose, the fuel hoses
diaphragm is (extremely leaking clogged fuel filter)
Replace the Fuel - Bad fuel (water in Pressure Regulator fuel)
E_ DME Fault Code 16 Fuel Injectors 1-3-5 Is Present
Fault Code 16 sets when Motronic Control Unit detects an open, short to battery, or short to ground.
E 1. Disconnect Control Unit connector. Disconnect the connectors from fuel inj ectors 1, 3, and 5. Turn the Ignition Switch to RUN. Measure the following voltages at the wire harness of all fuel injector connectors.
Measure Between Correct Voltage
1 (RT/WT) and Battery
Ground
1 (RT/WT) and 2 0 volts
(BR/WT)
• If voltages are correct, go to E2.
• If any voltage is incorrect, check/ repair wires.
E2. Check BR/WTwires from the fuel injector connectors to Control Unit terminal 16 for continuity. Repair as necessary.
• If wires are OK, go to E3.
E3. Reconnect fuel injector connectors. Connect Universal Adapter to wire harness of the Control Unit connector. Connect a fused jumper between terminal 16 of Universal Adapter and ground.
• If all three fuel injector valves click, remove fused jumper and replace the Motronic Control Unit.
• If one or more fuel injector valves does not click, remove fused jumper and replace the defective fuel injector.
F. DME Fault Code 17 Fuel Injectors 2-4-6 Is Present
Fault Code 17 sets when the Motronic Control Unit detects an open, short to battery, or short to ground. Refer to Fuel Injectors 1-3-5, Symp· tom E. See schematic for correct terminals and wires.
G. DME Fault Code 28 Oxygen Sensor Is Present
Fault Code 28 sets when the Motronic Control Unit detects an open, short to battery, or short to ground at terminal28.
G 1. Disconnect Motronic Control Unit connector. Connect Universal Adapter between Control Unit and wire harness of connector. Turn the Ignition Switch to RUN. Measure the following voltages at Universal Adapter.
Measure Between Correct Voltage
Terminal 28 and Approximately Ground 0.45 volts
Terminals 28 and 10 Approximately
0.45 volts
• If voltages are correct, go to G2.
• If any voltage is incorrect, check/ repair wiring and Oxygen Sensor. If wiring is OK, replace Motronic Control Unit.
2.5i ENGINE
G2. Replace Oxygen Sensor. Start engine and warm to operating temperature. Monitor Input Status (01-100-128).
• If tester displays Oxygen Sensor Control Active, the sensor was bad. Retain the new sensor.
• If tester displays No Oxygen Sensor Control function, replace Motronic Control Unit. Remove Universal Adapter.
INJECTION ELECTRONICS 1360A-3
1362-0 INJECTION ELECTRONICS 2. 7e ENGINE
ENGINE BLOOKPM\GRAM HOT IN RUN OR START HOT IN START OR RUN
•
REFERENCE POINT SENSOR
HOT AT ALL TIMES
FUEL PUMP RELAY
·--... MAIN FUEL PUMP
HOT IN RUN OR START
HOT IN RUN OR START
~ TEMPERATURE
illWI.H
OXYGEN SENSOR HEATER RELAY
1t EN Gill£ UMnRATUR£
ENGINE SPEED SENSOR
$TART OFF
l ~NGIN£ tmDINPUt
~CCV
COLO START VALVE
IDLE SPEED CONTROL UNIT
2.7e ENGINE INJECTION ELECTRONICS 1362-1
HUT IN RUN OR START
···~Ill 1
11
···II'·
II
1
11 ...... ,......
..-;r-,.FUEL
. ·llliNJECTORS
DIAGNOSTIC CONNECTOR
I 13
HOT IN RUN OR START
IGNITION COIL
.. ___ • I,s~~':_D-,.._ ,~~~o-,.._ 11 1 \ II 1 \
I \'fiJ f)L--~J l..ft~~
= t-~~ ........ ~ r-----14 ------- -------- -----------------:..,-: ____ It ---,, MOTRONIC
I liMitoiG . . FU~L RAn CONTROL I CONtROL OUTPUT UNIT I FUEL INJECTORS · · · f ! CONTROLS OPtN TUR(IttlE. CL0$£0 THROTTLE 1
I INPUT . INPUT I I . . . • .· ·. . . . 3 •. ··. . .. 2 . .· .......... I L------~-------------~------~~-~---• ---- -----------~
~If--~~ THROTTLE SWITCH
ENGINE BLOCK DIAGRAMS HOT IN RUN OR START .. ~·~~~~··~·~·,~·~··~"!'~'··~··~·!_
DISTRIBUTION
!!!!!
MANUAl • AUt(IMATIC TEMPERATURE tRANSMISSION.. ·TRANSMISSION SWITCH o•c (J2'F)
AUTOMATIC TRANSMISSION RANGE SWITCH
10.... . 2 . 7 . .-TEMPERATURE POWER PARK/NEUTRAL ISPEEO IHPUT .• INPUT INPUT I CONTROL ~~" IUNIT
I I
L-----~~:::~~~~=~----------------------1
1362-2 INJECTION ELECTRONICS 2. 7e ENGINE
FUEL DELIVERY WITHON.-BOARD .COMPUTER ll'm'·l'll·'lllhi'I'DMmifli
[f--........ , POWER l!!.if.flhifiMfi HOT AT ALL TIMES
1-- ................. s:· .... -..... -........ -.·.·1· IGNITION .. ·• ·.• FOS~ 2.1 • DISTRIBUTION I . .. SWITCH I ... 7:5'liMP I~
l J I STAt:•RT .... · ....... OFf I 1 RD/G; ------ FUSE L .. .!.!i .... "ltt!~~-... J
.5 GN
.--POWER -'DISTRIBUTION... 1 ....
.,. .. lBATTERV
• .J~BLDCK
1.5 RD S319laii!!:Oill~ DETAILS 2.5 GN
r-~- §. ................. ,INSTRUMENT 2·~2~~ -_ .. POWER DISTRIBUTION
.5 RD/GN 2 EC200 rJ H
21C104 I rt -I SERVICE I CLUSTER I INTERVAL --- .75 GN ~.. INOICATOII li
24 IC103
'--~ ------- _ _, 23 r----~o--C3 .75 GN
.5 RD/BK (NOT USED)
n .75 G: IC235
.5 RD/WT S201
.75 GN
.75 GN/RD
2
.75 BR
i ""{:~ SEE GROUND DISTRIBUTION
1.5 RD/BU 1.5 RD/ BU
.76 RD/ WT
4RMYT ....... TOS112 ~---l!!::iil-=.-l!!::iil-=1•1!:01-=::o.~~ ON PAGE 1362-4
.5 RD/WT 1 I C212
3 ll 3 g
~~'::.. cr:-r~~~~~~~~~- ---;;,---l:~I:i~ 15 G~RO L~~~-- _________ t~----------'C2
:~~·::!~· I Q-----------.~i\ I :~?., TOOXYGEN
I I ... .5 GN!VI ~ SENSOR .5 BK/Vl .75 BR/GN 1.5 GN/VI~ioooo!=--""""-!!!:01-l HEATER
.5 RD/WT
4 £!.
.5 BR/BU
(NOT USED)
FROM IGNITION SWITCH PAGES 1240-0,1240-1, 1240-2, 1240-3
.5BK/J
NOTE: PIN 4 OF MOTRONIC CONTROL UNIT IS GROUNDED EXCEPT IN START. OTHERWISE, CAR WILL RUN RICH.
:Ll£1 1--. r--:----. --.... INSTRUMENT 50 SERVICE I I INTERVAL CLUSTER
PRINTED I lJ!. -----c~_:~T ___ J
.5 BK/Vl 22}C3
6 3 u ----------------------S0--1 ON-BOARD I Kl. 30 CODE H COMPUTER I START • MODULE I INPUT 1---
~-------------------------j
4 35 18 20 1 3~C101 RELAY ON F ....................... ~-~f~---r7-:;:·.--,--~~r .. , ~~::~~~C ~~/~Dlcl14 PAGE 1362-5
L'''"' ~· .. "''"l . " . """" ! I rr~" I :''"""" I SOUl) STATE. . 1~01 INPUT$ . '.RELA·Y· I .!!!!!I f
1 ............... , ~
':~F~;~E;,;~;~--,:!2!~---~ '' GNJ~i ~:IG·M~ : ~---- ~~ 2_5 BR 2.5 GN/VI
I ----- -l t- _,. 't--=-=--=~' _____
3, (BK) S217 --~ SEE GROUND --. ! - DISTRIBUTION r:: ------ --_. .......
I _:-.=-==: I WJ!.!J! k~ ') 't-----
r--fo----1"-'"1 ENGINE SPEED
~ SENSES FlYWHEEL TEETH
2.5 BR
AUXILIARY FUEL PUMP
2.7e ENGINE INJECTION ELECTRONICS 1362-3
FUEL DELIVERY WITH MULTIFUNCTION CLOCK HOT AT ALL TIMES
r-----1:-----, ill!ll!.Q!i I "':. 1 SWITCH
l~:l:RT __ R!{!~~~-J 2.5 GN
2 C200
2.5 GN '.-:: •.• 75iiGiiN ____ 2(44
!111 ___ .1 .• 5 ~~GN _____ 2.__ •. 5.GiijN .... sme 1 -~ C103 C104
' 4RD 1.5RD
~~~------------------~~----. MAIN RELAY
POWER DISTRIBUTION 4 RD!WT h..._ TO S112
....- ~ ON PAGE 1362-4
GROUND DISTAl BUT I Oi\11
.75 AD/ WT
:~~~:0~11~ ~~:TROL l![.lhiVi;ii 1.5 RD/BU 1.5 RD/
!)§gf,~!' :~F~t " 1~----~------i\ I:::. h..::.~~~'" r-----------------------------~~:~--.--------------3!. ---. .! ... !_ .... ~~.7.~8~~~~--. MOTRONI1~5 ::/:;l--lli.Cl.,.0,.
1 _,..II!"!:;_.P" ~!~:~:~~.5 I lsrN~uArr . ·~ . ·,• coNTROL VI/R2o C214 I • POWEll FU£L ·
1-U-- -
I ...... · .. 1501 ... . SOLIOSTATE INPUT$ PUMP I NIT rJ· .------.,POWER
I ··. REfERENC~POINTINPUTS ENQINE$PEE01NPUTS .· . ..·. ~~~~:OL' ••· .. ··.f. U.SE 11 I DISTRIBUTION
·-~·~------11-~-=--~~-:rs:-l~--------:~rl· ___ :; __ :-t:::· ~--------------4;!N!------' L ~~:~ __ J BOX
· .5 BK IDLE SPEED 2.5 GN/VI
I ....... ~I"'' ------ CONTROL 1
GNIVI I ,_______ I ( ~ • •
,.5Yli---~BK l SHIELD :-~------l~~ 2.SBR 2.5GNIVI S341 ~ 1.5BR r-- --.1 l- ----- .1, ~AUXILIARY ~ \ ,. FUEL PUMP
GROUND 3 ----=-=-.j.-:_-::_:-_:-_:"_:-J (GY) ~.:=:_-::_:-_-:::_ ----- ill!·---. ~~S~~~:UTION M
DISTRIBUTION 'j' .. ~---- 21 ~--- -1_ ._ 3'J' (OK)
I ~~~ ____ :_- \ r: - -~ 1,'¥---------'~if SHIELD :- --=--==- ~lSHIElD ',,_] ____ ~~'5., ~- )
REFERENCE
f.!!llii ENGINE SPEED ill!§Q!l. SENSES FlYWHEEL TEETH
2.5 BR 1 DR
-=
1362-4 INJECTION ELECTRONICS 2. 7e ENGINE
FUIEt DELIVERY CONTINUED FROM PAGES 1362-2 AND 1362-3
:
.5 RDIWT
.5 RDIWT .5 ROIWT
FUEL INJECTORS
.5 ROIWT .5 RDIWT .5 ROIWT BAROMETRIC PRESSURE r-----~Q-0-NO~T~M~J~AS~O-A~E-RE-S-IST-A~N-«-A~T~ •. ------~-,AIR FLOW
TERMINALQ METER
.5 ROIWT
.5WT
.5 BRIWT .5 BR/WT .5 BR/\VT .5 BR/YL .5 BR/YL .5 BR/Yl r--· .llii I 2.5 BRI
~Qlli. GAUGES GROUND -
(FUEL ECONOMY) DISTAl BUll ON
1.5 BR/WT
NTC
liGHT LOAD
INLET TEMPERATURE
6
4
9
3
fUll LOAD
MOTRONIC ~ 1.5 BR/YL .5 GY/VI .75 GY/BU .5 GVIWT .5 GY /YL
.5 WT £!!!'!..!.!!.!! 14 11 15 30 22 9 !!!l!!I.
r--------------..--~-·.,..~-...... ~..,~-- .... -----.... -------------------... --... -------.. -""'-"~--... ""'-..... -~ .. --~~~~~~~-------------- ---------.... -------, 1 fUEL INJECTOI!~ PR~SENT FUEL . .FUEL INJECTORS . . · • 8A!l0METRIC AIR INLET . COMMON AIR FLOW REFERENCE 1 I CONT!lOL RATE OUTPUT CONTROL PRE$$URE lljPUT U~!!PeRATIIRE INPUT OUTPUT I I l,tAN03 4,61\.NOG SOLIOSTI\TE I I . . . . . . . ....... . I
I . ·. . . .·• . . . •. . . . . GROUND$ . . . ENI)ItjWUO INPUTS. ·, I . SHIELD •. ·. . OXYGEN SENSOR INPUT . . . • •. ·. ·• · ······· .· . ·.·. · ... . . · ·· ·· ·. · · • · ·.. . · · · ·. ·. . . ~ ~---------------------------------------~~~------------------------~----------------------------~-~----------J FROM OXYGEN
23 24 J (COAXIAL) - 17 · 16 10 19 271 Bt:6N SENSOR HEATER ---- -----.., ·5 YL ·5 BK IGN IDLE SPEED RELAY ' ----- CONTROL ON PAGE1362-5 1'--------": (_ ~NEXTPAGE
I .sHIELI!l - .!'!!'11 __ l : ~------l: · .75 V ""..; I _ ---- -l SHIELD GN/8 IDLE SPEED '...., ./ 2.5 BR 2.5 BR .75 BR 2.5 BR ~- _..---.
3~ C1~DGN/B~ON;ROL - ~G~MO ~.::~~~~-----J~ (BK)
- .. 1 C141 GROUND r-.:1 -:.•-·-· .£!!!. DISTRIBUTION ..,.__ I 1-=-==:::.11 SHIELD
21 C141 1 BR 2r C140
.75 BR ~ G103
Q!Yill 2.5 BR ~- ) --
SENSOR -------.lli!!l ~ SENSOR SE'Ns'ES FLYWHEEL
L-----~-.....;....1 TEETH
.75 GN/YL
2. 7e ENGINE INJECTION ELECTRONICS
HOT IN RUN OR START HOT IN RUN OR START
1ILU:J1 I DISTRIBUTION .fJliU I DISTRIBUTION
1.6 AMP I!!!! ISAMP llli I I
~--~~~~· -------J
IDLE SPEED CONTROL
FROM FUEl PUMP RElAY PAGES 1362-2 AND 1362-3 i--------, POWER [J-------1 POWER
1 .75 GN/WT 1.5 GN/YL .75 GN/YL
1362-5
r---r.~-----::;;iiiill---, OXYGEN SENSOR
HEATER RELAY
.5 GN/YL .75 GN/BK .75 GN/BK f1li GN/BK 1.5 GN/YL 0' CIJZ' F)
sTART .... ~:O.I!!::Oi~::o.~~. _ c• 1 1 .5 GN/BR
MOTRONIC CONTROl UNIT
..-------~----.,. I , I l I SOliD STATE \~
I ENGINE SPEED INPliT$ .,
.~./
.._ __ ...:;~---"V"-----..;..;...J .5 BU/GN
2 10
. POWEll INPUT 0' C 132'. Fl
• ...... NOTE
SEI! FUEL CllNtfiO~ FOil ~OTRONIO CONTRO~ UNIT ORO UNO .5 BR/RD
MOTRONIC CONTROl UNIT
r--------------------------~-----,'1" \ . . : \ \ ' ~~~-. \ t i • • .· .· l£t.IPE!!ATIIRE :
l $HIHP > . ..• . • ·•·· .. · INPUT ·. · ··· . f
·----~--~---~------~----~~·~----J 23 13
tEMPEIIATflf\~
tlOSEO .. . lHR(ITtU
INPUt 12
.5 BR/BU
31 MOTRONIC CONTROl UNIT
r---~--~--- .------------------~ • OXYGEN $EN$011 I t HEATER CONTROL I \ I ' I ' CLOSED . . WIDE OPEN . I I THROTtlf INPUT THROTTLE INPUT I
~--------~---------------------~ 2 3 .:~l~~;~~.-,8-.. · ._., __ .. ~'~-----~~,.~SH-IELD _ ___.
~--r---- j-...... _____ --t 1 ·-----:z -----.1 (BK)
r:J---- --~ -:.•-3•1 FUEl CONTROL (OXYGEN SENSOR SHIElD)
COOLANT f'EMPEiiii T U R E
~
1.5 BR
.5 BR/BK
THROTTlE
~
I -= ==:. I SHIELD k: 'j--ENGINE SPEED
~ SENSES Fl VWHEEL TEETH
.5aRJ GROUND
ill,!·-~ DISTRIBUTION
2.5BRIJW1
.75 8~1 5214 ·--~ GROUND -~ DISTRIBUTION
2.6 BR -=!!.!J!.l
1362-6 INJECTION ELECTRONICS 2. 7e ENGINE
I[)LE SPEE[) CONTROL/IGNITION
AIR CONDITIONING
'5
BU/WTI IDLE SPEED
g CONTROL UNIT
( . """. T T. •Et/IPERATURE ) SWITCH INPUT
6
.5WT
A/C ''ON" INPUT
SOLID STATE
IOL£ RPt/1 CONTROL r---1'-..
.··
5
.75 BU/RD
.75 BU/BK
COOLANT TEMPERATURE SWITCH
[[]
IDLE CONTROL
~
T CLOSED ABOVE
1113' F 145' C)
.5 BR
GROUND ~ ·--~ DISTRIBUTION
2.5 BR! _ G103
HOT AT ALL TIMES
f---. --t.--.... · .. --..... -... ·.· ... -.. ·. -. -~ ~:~~~N START . ~Off --
.IACCV I L--~~ ______ J
2.5 GN
POWER DISTRIBUTION
2Jc2oo 2.5 GN ,._ __ 1
S213 -
1.5 BR
DIAGNOSTIC CONNECTOR
1 13
1. 5 GN
2.5 71 ~ C101
GN
t& 1
J PRIMARY
II 4 IGNITION
COIL
l I
SECONDARY
2.5 BK IELD SHIELD -----;.-"' 5105 ,-,---=--, .. , .5 GN
·- I I • 1GNl----~ ' \
I ..... \. I \ t 12 5 BK \ _I \ ' 1.5 BR '---1;---,(' ~) ....._ __ _, ___ _ ------·- ~- ,, l .. -f,J~
1..-;"
LDISTRIBUTOR
,. V'\ ..:v, ~
SPARKVPLUGS
GAUGES (TACHOMETER),-----------.,
NOTE SEE FUEL CONTROL FOR MOTRONIC CONTROL UNIT GROUND
r---"""TiMiNO'CiiN"iiiot-------------.. ------------.. -----------1 ~g~~~~~c I SOLID STATE I !!!ill =
I REfERENCHOINTINPUTS ENGINE SPUD INPUT I
~
;~:~~~~:~ " l ____ ..!;."!!.!'-------.-~R---------.~t,-~~~~:t: GN :
j---.J---~==~ J 1.5 BR j.s ~L~--~~~~~;~l ~ :.:1_ ---- -l~SHIEL: IDLE SPEED CONTROL
~J"-------'1,.Il SHIELD c,- -I ~-- ----- j::t I ! -- '-- __ ..... ,:.!!!! ...... ----1 ----- l 3 ______ j,"":.:::_::-___ (GVI 1 -----y ----- (BKI ~ i y ,_ .. ..!y-----tl' , ------ ' 3l
S214. ....... -·-----.J~ (..._ ..
TDC 2.5BR~'-~ 1(~~1-----:-5;~~ ~
REFERENCE
SENSOR GROUND POINT
DISTRIBUTION -- SENSOR
-I "------"
.5 YL .5 BK
'
- ~
--
I .. ----- ,l~ I"" -----(' ) -... ____
ENGINE SPEE~
c.........._ ·r--~ SENSES Fl YWHE -·-·· TEETH
El
~!ill!
3435-0 BRAKE WARNING SYSTEM
HOT IN RUN OR START
.75 GNIWT
8212
.5 GNIWTI~~=--B-=oii~~~-=-~.5-GNIW-11T 6 £! FUSE DETAILS
NOT USED
i------ ·~ ........... ......;..,........;..,........;..,........;..,........;..,.. ........... ~. I
I
.5 BU/GY .5 BR
.75 BR/BU 7 .75 BR/BU
Cl~ IGNITION !!!!. I SWITCH
[lJgr, J.=.·.·.:.·.~ ... · ..... -. r.~.!( ......... ~ .. · ... -....•• ~· .• ·.~.-... •.· .. ,j· 1 BRl ::;:::~.~:' ~:f:JL
.76 BRJ GROUND ..,._ .. S100 8 C200 . --
DISTRIBUTION - -- r... .. · ... ·.] ... • .. · ~AA::~~l: PARK BRAKE I ·•· •. TIMER SWITCH 4 BR .75 BR I· 31 --CL'OsEii WITH L..-.. BRAKE SET
.75 BR
~!!!!!!!..
ROTOR
~
ON-BOARD COMPUTER
.5 BK/YL
Ei!iiiliJih* FROM IGNITION SWITCH PAGES 1240-0, 1240·1 1240·2, 1240·3
v .5 BK/YL
INSTRUMENT CLUSTER PRINTED
£! CIRCUIT ----1 ~ ............... I
ROTOR
~ .5 BR
WEAR SENSOR CONVERTIBLE BRAKE WEAR SENSOR
. .•. >. • ~CITE VOLTM~ AT 8111\Kf. WEAR ~~N$011 ~N I$WITIIINIVOLTOF
3450-0 ANTILOCK BRAKING SYSTEM (ABS)
HOT AT ALL TIMES HOT IN ACCY, RUN OR START r-------t::-----..., IGNITION r-~------, POWER 1
30 1' SWiTcil 1 FUSEe I iiiSTiiiBunoN
I START~ on 1-- f u AMP 1.!!!!. I "ACCV I L- ______ J L _____ jS R~: ____ j 1 VI/GN FUSE
2.5 GN ~ ·I!!'!::;Oil~:;;;n!:;. DETAILS
.75 GN
2,~ 1 VI/GN i 2.5GN [l]~
• ----------------··--POWER SWITCH .....,... CLiiSfii" WITH BRAKE
-S
2131 DISTRIBUTION
INSTRUMENT CLUSTER
PEDAL DEPijESSED
1 GN/RDY STOPILIGHTS
.75 GN . ~ 1 GN/RD LIGHTS: ~~·II!P~~-!!:Oiii~::O.II!:Oi-~~-!!:Oii-. STOP SJ16 1 .5 GN/BK
.-----------~ri-o----...., OVER --r·r;~---1 I ~; ..... ,..1 ... _r_ ... ___ _J
VOLTAGE 2 £_ 6 ~
f.............. .. ...................................... \ .. .,. REAR
PROTECTION
~
.75 GN/RD
M MKL fLIGHTS
~
---------------- ~
---------------~ 31~
.75 GR/RO .5 BR/Yl .. !!!:Oil •• S118 GROUND
1-- • .75 .75 BR DISTRIBUTION
.75 RO/VL • GN/RD lO ABS HYDRAULIC ...
UNIT ON NEXT PAGE FROM S119 ON 200 29 1 NEXT PAGE -:- - 10 25
f~~~~;:--~~.---.}!:nr------.. ----=~~~::~:-i8QiNP-------lru~s;,n~D1 !~~~~NIC 1 . . . I UNIT
'. . . . . OROIINO . . . . . . .· ·. V.OLTAG·~.. ··. ·. . ~--1 . . . . . . · MONITOR INPUT L--------------------------------.. ·-------------iiliiil .. ,... ..... _. __ ._._ .. , 20 34
: 1.5 BR 1.5 BR
TO ABS HYDRAULIC UNIT ON NEXT PAGE
151 .75 BU CHARGING ......... 7tit5ii8Uilll-• .,. es2Jo SYSTEM .75 BU~-
2.5i
1yC101 .75 BU"' 2.7e
~.! _____ ;z;:~f --~------·-j ____ _. 5r---------~c1 4 C2 6 - -
1 GN/Yl 1 GN/BU
5 5
f---~jE,fr~-]~,
L~~~:r! ... :1-~~:N~J .75BR
GROUND • _..,..DISTRIBUTION
.75 BU DIAGNOSTIC Sl24 12
CONNECTOR
.75 au}' 75 au S109. . 12 DIAGNOSTIC
1 jj8U~ CONNECTOR
r-ot "'1 ALTERNATOR
I I L __ j 1.5 BR
r-llt"1 AlTERNATOR I I l __ _j
POWER DISTRIBUTION
TO OVER VOLTAGE
PROTECTION RELAY ON PREVIOUS PAGE
r-----------4RD
BR
.... !ill&
CONTINUED FROM S118 ON PREVIOUS PAGE
.75 GR/RD
ANTILOCK BRAKING SYSTEM (ABS)
CONTINUED FROM OVER VOLTAGE PROTECTION RELAY ON PREVIOUS PAGE
.75 RD/VL
3450-1
HYDRAULIC
~··~··~••-•••·~-~--~·~-~-•-•••••-••••~~~S~~~-~~··••·~~~;~%••·~~~~~·~:rn'••!~-•••:-•·~·~~··-··•·------·~~~~~-~.~~~P-~~-·-··-••~••tABS
LH FRONT
!:!!.ill ~
.......... ":""'"":""'"":""'"":""'"....,":""'""i1 RH FRONT
~~~~~~~ . lli!..!! DETECTOR
ELECTRONIC CONTROL UNIT
~~··~~~~-.-~ .• --.~~·---·~~:~~~~~-~--~-~.----~·--
5116-0
.75 DR
SEE GROUNO DISTRIBUTION
POWER MIRRORS
.75WT/8K , .75 WT/BK
S504e------ - ----.
- ·.·· ....•. < ). , ........ ··.··••••····. I 1 ~~:w~ ptR~c:rto,.. ~o,.wo~~n~ 1 I !1Y P:Q~ARITY
HOT IN RUN ONLY FROM UNLOADER RELAY K7
.75 BK,WT
-- .75 BU/WT .75 BU/BK
.75 BU/WT I 2.\y!TH 9!NTCH$0J~~Ql!l .. I ~NfiR(ltZ~!l .~oT()R MPV~~
MIRROR UP AND DOWN, I ~~~~~~~~~--~~~~~~~~~.-~~DRIVER'S '75 BU/WT
.75 WT/BK I
I I I I
.75 BR
2 1
.>mM• r----~.-.~::1-3 -----------
----, INTERIOR I 15 .I LIGHT·
L I TIMER __ J 'CiiNiiio L
IL. ~ .................... .75 BR. 7 .75WT/8K 3 .75WT/BK
~--------...--.....IJL-_...,.....,.... ___ .....IJr---. PASSENGER'S 2 AC405 - $?----- -)----- MIRROR
C405 I - I
.75 BR 1.5 BR S342 .75 BR ! 4 .75 BR Ell .75 BR ................ • ..... -<4~~~~
I C404 I ~--------------------~~------~ L-..... ~~:T~~~~,~N ... -.1
5126-0 CENTRAL LOCKING
2 DOOR (SELECT).· HOT AT ALL TIMES
'.· .... __ F···U· S·E··. 27 ·.~ iiiSriii"BUTION I .· ·'26'ii'MP I BOX I . . . I l- -----..J
,. .. F.,..,. ___ ..,, POWER
1.5 R O/BK .75 RO/BK
_S2_J4 e • ~~~~ILS .75 BR
1.5 RD/BK 1 3 ' C405 TO C405
.75 YL/BU
1.5 RO/BK ~D/BK 1 (NOT TERMINAL 8 8309 • ( USED) 1 ON BOTTOM
.75 RD/BK 1 C503 DF THIS PAGE - .5WT/8K _UNLOCK
15 ~ -----'11----...
INTERIOR
~Jill!! ~ CONTROL
r" .!!ill!m! ~
1.5 BU
1.5 WT
L~+~:):::::===== e
.... _____ ~~.; ~
.75 BU
• I~
ORO UN I! CONTINUED II 8303 FROM TOP . OF THIS
I 4 I
~-------- ~~-~--~~-------~ GROUND I DISTRIBUTION ~·~ W 1 BR 8 .75 BR ----· ~ 1.5. 8342 £!!
HOT AT ALL TIMES
......... ·····~··· ... -.· .. • •.. -· .. •.·• -.. ·.· •.• -.......... IGNITION
1 ·. 30.·· ·~--1· ..•...•. ~
lsrAIIt .· ... ··.· , I I . ·. .. ·. Off 1 I .. ...- ·. I I . RUN ACCV . . I L .... ..;. ._..._ ... _._.,~
2.5 GN 2.5 GN S213 .75 GN D ..... )11--llllllliiii·. .75 GN
ill!
' POWER DISTRIBUTION
.75 BU
.75 BU
.75WT
.75WT
C302 (ACCESSORY - CONNECTOR)
.··.···•······ ... .... ·
CAUTION DO NOT OPERATE THE SYSTEM MORE THAN 8 TIMES IN QUICK SUCCESSION TO PREVENT DAMAGE TO THE CENTRAL LOCKING CONTROL UNIT.
.75 GNIBK
CENTRAL LOCKING 5126-1
2 DOOR (CONTROL)
.75 YLIBK (NOT 16 .75 BR/BU
USED) f C405
TRUNK LID LOCKING LOCK MOTOR ROD
.75BR
p (NOT USED)
I
~ 1
(NOT USED)
S342 _..... GROUND - ·---.... DISTRIBUTION
1.5 BR
5126-2 CENTRAL LOCKING
4 DOOR (SEI:.ECT) HOT AT ALL TIMES
ir- ------, POWER
FU. SE .2·7 I DISTRIBUTION '2i'A'MP I B 0 X
I I L- ______ _, .75 BR
1.5 RO/BK .75 RO/BK
(NOT S2JII • .. FUSE
I 00 TO C405 USED) -~ DETAILS
1.5 RD/BK TERMINAL
1.5 RD/BK THIS PAGE J TC405 1 BOTTOM OF
.5 WT/BK . 75 R 0/BK ..---.JII----. .!lli!:..!!f.!S
~~::oill•e SJ09 .!!!!.!!!!.!
.75 RD/BK
15 .75 RD/BK
INTERIOR i:iGHTTiMER CONTROL
1 .. -----1. 301
L----..1 1.5 RD/BK
~
r--------• 3
I .• ~
POWER INPUT
UNLOCK INHIBIT REQUEST INPUt
LOCK CONTROL
SOLID STATE
.75 Vl/BU
SAFETY CATCH
11 >--C404 .75 YL/8~
2
.75WT
SAFETY CATCH
BUTTON
.75 BK
RH FRONT DOOR LOCK
!!!!W!!!
......... 7•5•BU••~ S332
.75WT I ...... I CONTROL 1.5 WT 1.5 WT .75 WT
I ~~ l)w~Nuruoo~~~==========~3~5w~T~========================~~ I 4 FROM TOP L .75 WT
'----..lllilll--•- •---------_. ....... _.J OF THIS PAGE GROUND l DISTRIBUTION d
'9 1.5 BR 1 BR 8 . 75 BR & ...... ~ ..........
1.5 BRI;S342 C405
.f.G200
CAUTION DISCONNECT BATTERY BEFORE MOVING OR REMOVING THE CENTRAL LOCKING CONTROL UNIT. RECONNECT BATTERY ONLY AFTER THE CENTRAL LOCKING CONTROL UNIT HAS BEEN PROPERLY INSTALLED. IF POWER IS APPLIED TO THE CENTRAL LOCKING CONTROL UNIT WHEN IT IS NOT PROPERLY POSITIONED, UNIT WILL BE DAMAGED •
FROM TERMINAL 11 CENTRAL LOCKING CONTROL UNIT ON FACING PAGE
.15 BK 19 15 ;:"T ~z .... -<, ........ ~~
C404
.75 BK
5JJC402
.75 BK
SAFETY CATCH BUTTON
& f'
"lr .75WT
~ ODOR LOCK
.!'!!QIQ!l.
. 758~~C402 ~ ~ 1 C402
.75WT
.75 BK
HOT AT ALL TIMES
., ....... -~.-.... -••.. -... -. ....... IGNITION I 30 ·.. 1---. . . SWITCH
I . I-I START . . . . I. I . .. OFF I . ·. _....... I
L.. A·~-~~--J 2.5 GN
2 2.5 GN
CENTRAL LOCKING
4DOOR (CONTROL)
CAUTION 00 NOT OPERATE THE SYSTEM MORE THAN 8 TIMES IN QUICK SUCCESSION TO PREVENT DAMAGE TO THE CENTRAL LOCKING CONTROL UNIT.
5126-3
r---~--------.-.. ------------------... -----... CENTRAl 82.13 .75 GN ,o .75 GN M. . I AI.IT(IM.ATIC LOCK . SOLI() STATE UNLOCK II LOCKING •--J·)I-----it-iiii--J .. )I------11111(~ .·· .· UNLOCK AEQUE$T REQUEST CONTROL
C200 I C302 (ACCESSORY INERTIA SWITCH R~QUEST INPUT INPUT I UNIT
'
CONNECTOR! I C~OSEI)WITH IMPACT I
t~t~~l~l&----------l __ .... J B' 9
~R ~ DISTRIBUTION I ,.75 YL/BK 5 !I C401 SAFETY
.75 BK I CATCH
....., (NOT
r 2USEO)
I BUTTON r-::6~'------1-----, ~
DOOR LOCK
.!'!!QIQ!l.
'":1 "·:t. -------' -.75 BU
.75WT
·.
.75 BU
.75 BU
.75WT
.75WT
---,GAS LOCKING !.!l!l!!.. ROO ~ MOTOR
.75 GN/BK · .75 YL/BK (NOT 16 .75 BR/BU I (NOT USED) ...... ~~USED)
C405
~-- ~~t-~F ..... £_~_-..;..;-4-~ ....... ~~KING ~~~~:LID ~~---J
.75 BR
GROUND
DISTRIBUTION --~=i !J!!
""~
5126A-O CENTRAL LOCKING
TROUBLESHOOTING HINTS 1. Check Fuse by operating the Interior
Light Timer for either Dome Light.
SYSTEM CHECK • Operate controls in sequence listed in the
System Check Table.
• Refer to Repair Action for the Response received (tests follow the System Check
Table).
• After any repair. repeat System Check to verify proper system operation.
NOTE: Before replacing any system component. check all connectors. splices. and wiring to that component.
OPERATION
1. Insert the key in the Driver's door and turn to LOCK
2. Turn the key to UNLOCK INHIBIT (clockwise until key is horizontal)
SYSTEM CHECK TABLE RESPONSE REPAIR ACTION
All doors lock None, proceed to Operation 2
Some doors lock Repair/replace the suspect Door Lock Motor circuit
No doors lock Proceed to Operation 4
All doors double lock (Safety Catch Buttons None, proceed to Operation 3 cannot be pulled up by hand) Driver's door double locks and only some of the Repair/replace the suspect Door Lock Motor other doors double lock Driver's door double locks but all the other Perform Test B doors do not double lock
Driver's door does not double lock Mechanical problem, see BMW Troubleshooting Manual
CENTRAL LOCKING 5126A-1
SYSTEM CHECK TABLE (CONT'D)
OPERATION RESPONSE REPAIR ACTION
3. Turn the key to UNLOCK All doors unlock None, proceed to Operation 4 Some doors unlock Repair/replace the suspect Door Lock Motor
circuit
No doors unlock Proceed to Operation 5
4. Insert the key in the Passenger's door and All doors lock If the doors did not lock in Operation 1, repair/ turn to LOCK replace the Driver's Door Lock Switch,
otherwise proceed to Operation 5 Some doors lock Repair/replace the suspect Door Lock Motor
circuit No doors lock If all the doors locked in Operation 1, repair/
replace the Right Front Door Microswitch. If the doors did not lock in Operation 1, perform TestA
5. Insert the key in the Passenger's door and All doors unlock If all the doors did not unlock in Operation 3, turn to UNLOCK repair/replace the Driver's Door Lock Switch,
otherwise proceed to Operation 6 Some doors unlock Repair/replace the suspect Door Lock Motor
No doors unlock If all the doors unlocked in Operation 3, repair/ replace the Passenger's Door Lock Switch. If the doors did not unlock in Operation 3, perform Test C
6. Get in the car and close and lock all doors Doors remain locked None, proceed to Operation 7 Turn the Ignition Switch to RUN Doors unlock Repair/replace the Central Locking Control Unit
7. Get out of the car All doors can be unlocked None, proceed to Operation 8
Insert the key in the Driver's door and turn All doors remain secure Disconnect the connector from the Central to LOCK Locking Control Unit and check for a short to Unlock each of the doors by pulling up the ground in the wires at terminalll. Safety Catch Buttons • If short to ground is not present, replace the
Central Locking Control Unit. • If short to ground is present isolate wiring from Door Lock Motors one at a time to find short
5126A-2 CENTRAL LOCKING
OPERATION
8. Insert the key in the Trunk Cylinder Switch. Turn the key to LOCK
9. Turn the key to UNLOCK
10. Turn the key back to LOCK
11. Turn the key to UNLOCK
• If all results are normal, the system is OK.
SYSTEM DIAGNOSIS • Do the following tests when directed by
the System Check Table.
SYSTEM CHECK TABLE (CONT'D)
RESPONSE
Trunk locks
Trunk does not lock
Trunk unlocks Trunk does not unlock
Gas Filler locks Gas Filler does not lock
Gas Filler unlocks Gas Filler does not unlock
A: CONTROL UNIT LOCK TEST (TABLE 1)
Measure: VOLTAGE At: CONTROL UNIT CONNECTOR
(Connected)
Measure Correct For Between Voltage Diagnosis
3&Ground Battery See 1
3&4 Battery See2
• If the voltages are correct, proceed to Table 2.
1. Check the wire to terminal 3 for an open.
2. Check the wire from terminal 4 for an open to ground (see schematic).
REPAIR ACTION
None, proceed to Operation 9
If the doors lock, repair/replace the Trunk Lock Motor Circuit or Trunk Lock Motor If the doors do not lock, repair/replace the Trunk Switch Repair/replace the Central Locking Control Unit if the Trunk Switch Circuit is OK
None, proceed to Operation 10 If the doors unlock, repair/replace the Trunk Lock Motor circuit or Trunk Lock Motor If the doors do not unlock, repair/replace the Trunk Switch Repair/replace the Central Locking Control Unit if the Trunk Switch Circuit is OK None, proceed to Operation 11 Repair/replace the Gas Filler Lock Motor circuit None Repair/replace the Gas Filler Lock Motor circuit
A: CONTROL UNIT LOCK TEST (TABLE 2)
Connect: A FUSED JUMPER At: CONTROL UNIT CONNECTOR
(Connected)
Jumper Correct For Between Result Diagnosis
7 &Ground Doors
See 1 lock
• If the result is correct, repair/replace the switches and related wiring (see sche-rna tic).
1. Proceed to Table 3.
A: CONTROL UNIT LOCK TEST (TABLE 3)
Connect: FUSED JUMPERS At: CONTROL UNIT CONNECTOR
(Disconnected I
Jumper Correct For Between Result Diagnosis
1&3 Doors 2&4 lock See 1
• If the result is correct, replace the Central Locking Control Unit.
1. Check the wire from terminal! to splice and the wire from terminal 3 to splice for opens (see schematic).
B: UNLOCK INHIBIT TEST
Connect: A FUSED JUMPER At: CONTROL UNIT CONNECTOR
(Connected)
Jumper Correct For Between Result Diagnosis
Doors lO&Ground double See 1
lock
• If the result is correct, check the wires from terminal 10 to ground for opens (see schematic). Replace the Unlock Inhibit Switch if the wires and connections are OK.
1. Check the wires from terminalll for opens (see schematic). Replace the Central Lock-ing Control Unit, if the wires and connec-tions are OK.
C: CONTROL UNIT UNLOCK TEST
Connect: A FUSED JUMPER At: CONTROL UNIT CONNECTOR
(Connected)
Jumper Correct For Between Result Diagnosis
6&Ground Doors See 1 unlock
• If the result is correct, repair/replace the switches and related wiring (see sche-matic).
1. Replace the Central Locking Control Unit.
CIRCUIT DESCRIPTION
The Central Locking System is controlled by the Central Locking Control Unit. This unit senses when a lock switch is moved by a key, and sends the appropriate signal to drive the Motors. The Central Locking Control Unit controls the Door Locks, Gas Filler Lock and Trunk Lock. The unit also has an Inertia Switch which closes on impact greater than 5g. If in RUN or START the locks are then unlock~<!,
Lock
When the Key is inserted into a lock and turned clockwise, the Lock switch moves to LOCK and grounds terminal 7 of the Central Locking Control Unit. The unit then activates the Lock Relay and applies voltage from Fuse 27 to the Lock Motor, which is grounded through the Central Locking Control Unit terminal 2. The Lock Motor then pulls the lock down. The door locks also control the Trunk Lock and Gas Filler Lock.
CENTRAL LOCKING 5126A-3
Unlock
When the key is turned counterclockwise, terminal 6 of the Central Locking Control Unit is grounded through the Lock Switch. The Central Locking Control Unit then activates the Unlock Relay and applies voltage from Fuse 27, through terminal2 to the Lock Motor. The motor is grounded through the Cental Locking Control Unit terminal!. The polarity is reversed and the motor pushes the lockup.
Unlock Inhibit
When the key is inserted into the Driver's Lock and turned clockwise past the LOCK position, the Unlock Inhibit mechanism is engaged. This mechanically inserts a bar into the driver's lock and prevents unlocking through use of the Safety Catch Button. When in the Unlock Inhibit position, ground is applied to the Unlock Inhibit motors in the other lock units. The Central Locking Control Unit is grounded at terminallO and then activates the Lock Relay. Voltage is applied to the Unlock Inhibit motors through terminal!. They are now activated and engage the other Unlock Inhibit mechanisms. The direction of the motors is reversed when the doors are unlocked (see Unlock).
Trunk Lock
The Trunk Lock operates in a manner similar to the Door Locks.
5133-0 POWER WINDOWS EXCEPT CONVERTIBLE
1.5 GN/GY
,.---..-..,.;.;;~_....,._.,._.,._--.....,lH FRONT WIN DOW CONSOLE SWITCH
GROUND
, HOT AT ALL TIMES FROM UN LOADER RELAY K5
r- ~-...... -~1. POWER . f.II.§.Ul . . iii'STRi B UTI ON
I . 3DAMP I !!2.!
l. -----~J 2.5 WT/BK I
Q C302 (ACCESSORY 2.5 GN/BU 2.5 GN/BU' -CONNECTOR)
SUNROOF ·~llli!::;;-!::i.-=o-~· §ill 2.5 GN/BU)\
rn POWER WINDOW CIRCUIT BREAKER 25AMP
2.5GN/GYb C3!1 1.5 GN/GY
2.5 GN/GY ~=--ll!!::o-~-=o-!!:Oii1•.5!!!:G:;;;~N•/G!!!:Y=--II!!::o-~-=o-!!::iil-~~~~ S322 "?~=--ll!!::o-~-=-!!:Oii•1.5!!!:G:oiiN•/G!!!:Y~-=--~-=-!!:Oil~~-=~
1.5GN/G;~-r--------:;;:ijlt:;::---, !:.!!...!!1M r--'r-. ~
WINDOW SWITCH
r-::::--* ............ f-~~:::;:;;:::;:;;;::=:=;--?1)111----.. ""'j""" .. -----ll(if:-...J::::::::::;::::;t:±==l===:....-:-, ~ ~
1.5 BR
2.5 VI 2.5 BK 2.5 GN/BU
1.5 BR 1.5 BR
13 _______ 1~ C405
1.5 VI 1.5 BK
7 1.5 GN/BU 1.5 GN/BU 7 ~ ·1!!:3~a.~ ill! ~ ~
2.5 BR
BU BK
3 2
I
7 1.5 GN/BU )
EXCEPT CONVERTIBLE POWER WINDOWS 5133-1
1.5 GN/GY
GROUND DISTRIBUTION
2.5 BR
1.5 BR 4
1.5 BR
4DOOR
2.5 VI/GY 2.5 BK/GY
13 -------~4 C404
1.5 VI/GY 1.5 BK/GY
BU BK
3 2
5133-2 POWER WINDOWS EXCEPT CONVERTIBLE
DRIVER'S WINDOW CONSOLE SWITCH
1.58R
1.5 BR
HOT IN RUN ONLY FRm.l UNLOADER RELAY K5
2.5WT/BK I 0
2.5 GN/BU
·"."7-.~~-·-~:rJPOWER .fJLU;U .•. · •... · ) I DISTRIBUTION
i.~-.·.•.A.·.·.!'··.·.:r·:.•••·•.·.··· ··.•. (.··•• ·.·.•.•·.•.•.··.···•·• .. ·.·.·.··•.•]•·• !!!! t;;J::_;iU>_j:::,_L/::::::::-:_,<;.:_ ·:, ................ _ .. C302 (ACCESSORY CONNECTOR} 2 5 GN/BU
• • S224 ·~-~-=-!!a-=--•"' SUNROOF
2.5 BR
POWER WINDOW CIRCUIT BREAKER 25AMP
1.5 BR
1.5 BR
13
1.5 VI/GY
RH FRONT WINDOW CONSOLE SWITCH
CONVERTIBLE POWER WINDOWS 5133-3
HOT AT ALL TIMES FROM UNLOAOER RELAY K5
r-I .................... --,POWER
~.·.· • ~!.~Z.·.·• ..•. ' :-_D~S-:RIBUTION l• · .. ·. . . ·.· .·.·. ·I
L- ------...1 2.5WT/BK I
Q C302 (ACCESSORY
2.5 GN/BU 2.5 GN/BU~- CONNECTOR) SUNROOF ·~m-!:::1.~-!!::a. §m
2.5 GN/BU)\
rn POWER WINDOW CIRCUIT BREAKER 25AMP
2.5 GN/GYY AcJs1 1.5 GN/GY
~~~~~~~~~-~~~~-~~1.~5•G~N/~G•Y~--~~~~--~~~~~~--2~·S~G·N~/G~Y~~~~~~~~-=~1•.5~G~N/•G~Y~~~~~~~---=--~:!~
.... ~] ~----------~~~~~~~7)LHREAR
WINDOW GROUND
r--:"'-'-*--T_,.. ....... ""li!!i~:::::::::i;;=;-~ )5 ------· DISTRIBUTION ·------<~~.JM:t+t+8lll~~;::t;;:!.+.lii!i ~ !!!!!f!!
8
2.5 VI 2.5 BK
1.5 BR
2.5 VI/YL 13 _______ 1~ C405
1.5 VI 1.5 BK
--------2.5 BR 1.5 BU 1.5 BK
BU BK
3 2 3 2
5133-4 POWER WINDOWS CONVERTIBLE
2.5 BK/WT 2.5 VI/WT 1.5 BR
3 2
1.5 GN/GY
GROUND DISTRIBUTION
2.5 BR
1.5BR
1.5 BR
4
2.5 VI/GY 2.5 BK/GY
--------13 14 ~
1.5 VI/GY 1.5 BK/GY
BU BK
3 2
5413-0 SUNROOF
1.5 B~ l ·~
HOT IN RUN ONLY FROM UN LOADER RELAY K5
f-r.··"'"" .. .,..,.. ... ., POWER
•• ··•·· •••... F··.···.y····,S·§. E. 11'··.··,··.··:·'.• •. 1 iiiSTiiisuTION
j ~~AMP I !!!!. ...... liiiii .... .J
2.5 WT/BK Q' ~(ACCESSORY CONNECTOR)
2.5 GN/BU 2.5 GN/BU 8224
._... • POWER
- R WINDOWS 2.5 GN/BU A
TC305 2.5 GN/8~ A,-
2.5 BK
1.5 o~J ~G600
2.5 GN
MOTOR RELAY (ALTERNATING LATCH TYPE)
1.5 BK
SUNROOF
M!W!!l
6100-0 BODY ELECTRICAL
HORNS '!!.ldlb"'hi HOT IN ACCY, RUN OR START
r---~-~f~.,-------------- ---'!!~!'-~,.-""...,. --..... 1 POWER DISTRIBUTION
. · BOX
1 ~3-0~~--~------------~~~~.
-------------
1 VI/Yl 1 VI/Yl
rTr1 RH rTfllH
lJlJ """' lgJ """' .75 BR/VL
"" 1 "" Me•-•
2.5 BR
1 GROUND DISTRIBUTION
I ... _:_ ... ill!!.
4 BR
BK
BK BK
BR m m m rnHORN
GZOl ~ ti:lJ ~ l£~ SWITCHES f1: : OOUNDED T: STEEOING :LUMN) 7
... 6200
BODY ELECTRICAL 61 00-1
CIGAR LIGHTER/GLOVE BOX LIGHT/AUTO-CHARGING FLASHLIGHT/MAP READING LIGHT HOT AT ALL TIMES
r- ------"\POWER
I FUSE 28 I ii"ISTRIBUTION
I~~~ I I
L- ------..J 2.5 RD/YL
6 C204
2.5 RD/YL
2.5 DR
2.5 BR
HOT AT ALL TIMES
r- ------, POWER I I iiiSTRiBUTION I FUSE 21 I BOX I 7.5AMP 1-I I L- ------..J
1 RD/GN
EJ!• ~~~~ ~~~~ILS
.75 RD/GNl
14 C10J
·"'"" ,-.5 RD/GN ·-·"""' 1""
~GLOVE BOX
r-----~~------~AUTO·
l3EJ """'
. "'""I :~~~:: ..... m~~G~H:E ~SWITCH T
I .5 BR
,-,j / .5BR
CHARGING FLASHLIGHT
HOT IN ACCY, RUN OR START
r- ------,POWER I 1--1 fUSE 6 1 DISTRIBUTION
: 7.5 AMP I BOX I I L- ------.J
1 VI/GN
CONVERTIBLE
.5 BR
MAP READING LIGHT
NON-CONVERTIBLE
.5 BR
.75 BR
GROUND DISTRIBUTION
6100-2
.REAR
.DEFOGGER
BODY ELECTRICAL CONVERTIBLE
HOT AT ALL TIMES
28 ~
2.5 GN/BU
,. . ..:J S307 e ~:;;;;n!"'!:;;o.~ ll G HT SWITCH -r~ DETAILS
'75
BR/W) (NOT USED)
r*:- -,:-.-~----- t·F'"'l!:.:i. I. ·>.2011!\ I I · .. ··. . .I L _______________ . ~~~-J
3
.5 BR
.75 B:I. _______ S.JOiiiii&
1.58:,·:---1.5 BR
f-ill!!
2.5 GN/BU
2.5 BK 2S 2.5 BK ~
~>-------------------------·-=----------~ .75 BK/VL
GROUND DISTRIBUTION
2.5BK~~ BK
91!!. CONNECTIONS FOR HARD TOP DEFOGGER
.Q.U!
BR
2.5 BR
CONVERTIBLE BODY ELECTRICAL 6100-3
REAR DEFOGGER
r
2.5 BK/RD
.75 BK/Vl
~ WINDOW
~
BR
.75 BR
.75 BR/BK 2.5 BR
6100-4 BODY ELECTRICAL EXCEPT CONVERTIBLE
. REAR DEFOGGER HOT AT ALL TIMES
30 AMP H AMP I BOX
l ------------------------------------------------ ____ j 1 GY/GN
lr -;U~;;--------------------------------------------fF:;~l~ ~~~~~BUTION
2.5 GN/BU 5 ClUJ .75 GY/GN 'lf-
28 ~ 10..1.
2.5 GN/BU
4 15
ON
H$
.5BR
[-~~~~~~~;~:·] ~:;, ~ ··:;:~:11···-
S221 ·~ ~ ~ LIGHT SWITCH - DETAILS
""'":1 DEFOGGER
SWITCH
.58~~ 8307 .II!!'!Oiiiii!!'!Oiiiii!!'!Oiii~II!!'!Oiil~
.75 BRfWT ~ 11A
r3io -..•. -. · ... -.................. ~---ii• -1.· h!Q!:!l ~ DIM I
L .. !!l::·: ........ J .75 B~ l
!--~GROUND
1.5 BR S306 DISTRIBUTION
9' C103 1.5 BR
.G200
LIGHT SWITCH DETAILS (DASH LIGHTS)
6131-0 IGNITION KEY WARNING/SEATBEL T WARNING
HOT AT ALL TIMES
1 RO/GN
.75 BR/GN
~-----,POWER
WU1 I iiiSriiiBUTION
1.$AMP loox I _____ .........
IGNITION KEY SWITCH SHOWN WITH
L..-..;. ..... KEY REMOVED
.75 BR/RD
15GNN: roo
-= -=-
DRIVER'S DOORJAMB
~ CLOSED WITH ODOR OPEN
HOT IN START OR RUN
.. .., ........ ,POWER
wu.g.,. E. ·.. 'I iilsTAi BUT I ON 1. 5 AMI' !!_!!!
............ 1
.75 GN/WT
.5 GN/WT FUSE
rl'l!!::ii-::0.~-~-=-~-!!!::--.-e~ I!"!::iii...,... DETAILS gg
4
[!JID~:~::.~·:~.~
.75 BR/GN
8
.5 BR/Yl NDN·CDNVERTIBLE
.75 BRIVI CONVERTIBLE
SEATBEL T SWITCH OPEN WITH DRIVER'S
""---...._, SEATBELT BUCKLED
.75 GN/WT
.---"""'~--_,.---...,...=.;~..,_.....,__.....,_ _____ .,....-:-::~--. SEATDEL T
WARNING TIMER
6160-0 WIPER/WASHER
~ PUMP
HOT IN ACCY, RUN OR START
15'f
I POWER INPUT
WASH INPUT
PAUSE SLOW FAST INPUT INPUT INPUT
POWER DISTRIBUTION BOX
KIO WIPER CONTROL UNIT
-
SOLID STATE OPERATE CONTROL ----\
GROUND fAST CONTROL ~
I L------------I
Li - --· '
c-----.......... -
&J 85 15b F I f2 31 53b
I \ .76 BK/RD
I I I ,II
t -------- -------------- ----- ----- ---------------- --------- ---------- --------- -----
.75 BR/BK .75 BK/BU .75 BK/RD .75 BK!VI .75 BK/RD 1.5 BK/WT 1.5BK/Yl
4 3 I 2 £W 6 2 I f.!!!l --------------- ----- ___ _.. 1'------------- !"---------
.75 BR/BK .75 BK/BU .75 BK/RD .75 BK!VI 1.5 BR .75 BK/RD 1.5 BK/WT 1.5 BK/YL
I 2 3 4 85 ISb fl F2 ~ 31b 63b 63
~ FAST
.~AUS£ ~ RUN ---------- ~SlOW ,. WASH F ..... -...... PARK (' SWITCH SLow:"
- SINGLE FAST
WIPE
31 1 31 5 -
.75 BR 1.5 BR 5 1.5 BR
Jll!!! (GROUND ON STEERING COLUMN) ~200 cio9 --
6210-0 INSTRUMENT CLUSTER
HOT AT ALL TIMES
[;~~~E] :~:· 2.5-~1
2JC200 2.5 GN
-_POWER SZtJ ·---DISTRIBUTION .5 GN
.5 BU
CHARGING SYSTEM
HOT IN ACl'Y HUN OR START
f!!ru DISTRIBUTION
lli
--"·-·"-'...! MULTIFUNCTION CLOCK/ON·BOARD COMPUTER HEADLIGHTS FOG LIGHTS
.5 BR/RD .5 BR
.5 VI
.5 BU/YL
CRUISE CONTROL
r-~i'---.,.-..;.~~ SPEEDOMETER
SENDER
ROTATING DISC MAGNETICALLY OPENS AND CLOSES
L-..;...; ...... ..;...; ...... --..... _ ...... _, SWITCH
ON·BOARD COMPUTER MULTIFUNCTION CLOCK
(NOT USEDI
.5 BR
ON-BOARD COMPUTER MUlTIFUNCTION ClOCK
,.. --, .lli!!1IUl!t : I £ru1 I I I I L .J
2.6 BK
r---, MOTRONIC I TIMING I CONTROL I CON- 1 I TROt JUNIT L.-
1
2.6 BK
HOT AT ALL TIMES
13 4
1 GN
HOT IN RUN OR START
POWER DISTRIBUTION BOX
.5 BR
ON-BOARD COMPUTER/ _75 BR/VI MULTIFUNCTION CLOCK
: .. J.t• •• , .. J--.75 BANI ,,_,.,, '-" , :> COOlANT
k ,._s_H.IE·l·D-· .,_.:)SHIELD ffiS216
j'~r.====~~S~1=05c:::J .J 'j/ ( ' =lURE
ON-BOARD COMPUTER
325e INSTRUMENT CLUSTER 6210-1
.75 WT/BU
11
.5WT/BU
7
DIAGNOSTIC CONNECTOR
INSTRUMENT
£!:.!!ill!!.
6210-2
ON·BOARO COMPUTER MULTIFUNCTION CLOCK
(ON·BOARD COMPUTER ONLY)
INSTRUMENT CLUSTER 325i
HOT AT ALL TIMES HOT IN nuN OR START
.5 BR/VI
.5 BRIWT
.5 BR/RO
ON·BOARD COMPUTER/ MULTIFUNCTION CLOCK
£.!!!!!MIT TEMPERATURE SENDER
.6 BR
cT .... l - ...... , .. ~
II
., ..... J~.~N.~t~ .. ~ .. ···AL . • • CIRCUIT
~~----~~~~~~~~
! I I I
l ----~~---------·---~--~-~--~---' ~-G2_00 ---------------------------------------------~
.5 BK/BR
s
.5 BR{GN
_g._.. OIL PRESSURE
§rill£!! OPENS AT 0.7 TO 2.1 PSI ...._ ............
NOT USEO
~
ACTIVE CHECK CONTROL
.5 BR
325e 325i INSTRUMENT CLUSTER
GAt:JGES/INDICATORS . HOT IN RUN OR START
,. ... -r. _ ..................... , POWER
t1. .. · ... ···· FIJ·S· 6 .1 0.:·. ·.'. iiiSTiii a uno N . 7.6AMP Ill! l..... . ........................ J
_5 GN/WT .75 GN/WT
.. E;i-!::;;1-:ai-=-EO-EO·~~-=-II!":.Oill+ ~~~~ILs .5 GN/WT
6 ~
6210-3
INSTRUMENT CLUSTER PRINTED CIRCUIT ______ ... ___ .,...,...,.~-·-~-~,...!11'1!11,..--_"""' ____ "'!- _____ ~-----------...--.... -------------l
2.7e
.5snrwTl
OIAGNOSTI C 4 )-=011.5•B~R:i./W•T-=-~ CONNECTOR •
8216
.5BR/WT ~-
=TUREIWJ:J
.5 BR
2.&i
.. -I WDWT 1!1 fEMiiEiiATURE · •.. •.• •• · ... • .• · •. •·.·· •.... •.· · .•. ·.• .•. ···•· .. ·· .. ··.·•.: ...•. SENDER
.5 BR/ GN
ON-BOARD COMPUTER
NDN·CDNVERTIBLE
.751 BR
f.G300
COMPUTER
CONVERTIBLE
.75 BR l' r--J :3:R7 ·~--1-BR-11(1 .......
AUXILIARY
E!!.ll. ~-G2_02 ~
I
6210-4 INSTRUMENT CLUSTER 325e
HOT AT ALL TIMES HOT IN RUN OR START
325i INSTRUMENT CLUSTER
TACHOMETER/FUEL ECONOMY GAUGE HOT AT ALL TIMES iii.li@jl;li
.----1 ! I I I I I I '·----8
OA.UI!~S/ • 16k INDICATORS, OHMS SPeEDOMETER
ki.l Klfl KL11
7 I C1 11 I 25 I 26 C3 20 C1 16 .5 BK .5 YL/WT 5 WT /BU .5 BR/R D
22 I .75 :~~--------------~;v~7w~~ £ill
" ·:J---------~------------~~~~~~~ :·~ ::~:.:::~::",'~."i • . 5 BK/BU .5 WT .5 BR .5 BR
s n
[~i~~:~:::;;~;:;;i~t=l ~~:;:::'
HOT IN RUN OR START
6210-5
6216-0 ACTIVE CHECK CONTROL
ACTIVE CHECK CONTROL
1. When the Ignition Switch is initially placed in "Run," the Active Check Control Arm I ndieator flashes, and the Active Check Control Unit Brake Light LED and panel light illuminate for test purposes. Depressing the brake pedal clears the display.
2. When the Ignition Switch is placed in .,Run," fault monitoring begins. To monitor the low beams, rear lights, or license lights, those circuits must be on. The brake lights are monitored only while the brake pedal is depressed.
3. When a fault occurs, the alarm indicator flashes, the appropriate LED fault indi· cator lights, and the panel light goes on for five seconds. Depressing the test butlon will clear the alarm indicator, but the LED fault indicator remains on.
4. To test the unit, depress the test button. The LED fault indicators and the panel lights should go on.
REAIHIGHTS WASHER FLUID
I I I....__.__.. liCENSE PLAn L COOLANT
I I ·.._I __, Figure 1 ·Active Check Control Uni! Above Rear View Mirror
HOT IN ACCY. RUN OR START
..... ,.. ........ ,POWER
eo~u · ·1 ili'STiiluunoN
lU"'P I BOX I
.. _ .......... .;J
TURN/
~:C.II!!::Oi-=:--4·~ HAZARD LIGHTS
I __ :: .......... _____ J 31 -------~--3,C114 ____ _
1 YL/WT 1 VL/BU
GROUND I DISTRIBUTION
.... G200 HEADLIGHTS
.75 GY/YL
ACTIVE CHECK CONTROL 6216-1
r~ S221
.75 GY/
LIGHT RD
STOP LIGHTS
HOT IN ACCV, RUN OR START
r-
~ I
------1 POWER FUSE 6 . iiiSTiiioUTION 1.'5"AMP ,oox
I L-
I -~----.J
t VI/GN
1 VI/GN .. ~-!::;;. ~~~ FUSE ill!!. DETAILS
.5 .75 GN/ GN/ RD RD
3 .5 GN/BK
HIGH
!£Yll. .ill!!.
6216-2 ACTIVE CHECK CONTROL EXCEPT CONVERTIBLE
HOT AT ALL TIMES
f"" - ... - ... --J P_O_WE_R
1 .f.!!1§J1' . 'I DISTAl BUTIDN
: UAMP I BOX I I L- ;.. __ ... _._..J
1 RD/GN
FUSE B!! er:;;o~~ ~ r::::+ DETAILS
.5 RD/GN
1 BU(VI 1 BU/WT
STATIC SWITCH
FIJU
HOT AT ALL TIMES
~ OPEN WITH
....... ~~ LOW COOLANT LEVEL
.75 BR GROUND DISTRIBUTION
OIL LEVEL LOW: I
.75 BR
DYNAMIC SWITCH CLOSES, I STATIC SWITCH OPENS. .._ _____ ....
STATIC SWITCH CLOSES, 2.5 BR OIL LEVEL FULL: IS114
"'----el'-----·--...... ~---' DYNAMIC SWITCH OPENS. =
StOO~--~ 4 BR
.G104
GROUND DISTAl BUll ON
.5 BR
HOT IN RUN OR START
BRAKE
.5 BR/VI
M!!Y!. CHECK
.£!l.!ill!Ql:. !:!!!!!
f.AWN. §EATBELJS INDICATOR
r-1-"1SEATBELT
I . ~WARNING I I Ti'ME'i! L_i' . ..J fiiiiDPERATION
SEE SEAT BELT WARNING
WARNING.,.. _ _,
SYSTEM
.75 BR
CONVERTIBLE ACTIVE CHECK CONTROL 6216-3
HOT AT ALL TIMES
....... I I I I I l-
------,POWER
I iJiSTiil 8 u Tl 0 N I BOX ,-' ------.J
HOT AT ALL TIMES
1 AO/GN
(IF EQUIPPED WITH AIR BAGS)
~--·5·V•I --<!NOT USED)
) 4
.5 VI (
STATIC SWitCH
FULL
PROVIDES POWE~fOR COIHINUOU$ MEMORY OF ENOIN~ OIL fAUHINOIC(irOR
.5 VI 8231··-------.. 2
-~ 2.5VI 6
P_~!-~-~-:'""':·['.L:~~~~~•4'J~,.t~j :=·:~:-:-:-:-L 1 --~~--------- - ( illll
DVNAMit .Oil
1 BU/WT .75 BR GROUND DISTRIBUTION
OIL LEVEL LOW: I
.75 BR
DYNAMIC SWITCH CLOSES, I STATIC SWITCH OPENS. .._ __ • __ ....
STATIC SWITCH CLOSES, 2.5 BR OIL LEVEL FULL: IS114
L--_..;..-411~----........... ......, .... ""-'t.,_..._.........,. DYNAMIC SWITCH OPENS.
81001--~ 4 BR
A.illi
C240
GROUND DISTRIBUTION
.5 BR
1!!:0.7•5 •RD~/-GN~.,AIIIII INTER I OR
~· .... LIGHTS
.75 BR
HOT IN RUN OR START
.75 GN/WT
BRAKE
------,POWER ·--FUSE tO 1 DISTRIBUTION
1.6 AMP I BOX I
______ _..
ll!!:::ill~ FUSE llil DETAILS
GKL 8
.5 BR/VI
fAW.!! §EATBEI.:T~. INDICATOR
r--.:-"lsEATBELT
I 'WARNING l ~ l-~ ... J FOR OPERATION
· SEESEATBELT WARNING
WARNING ~-rttlf SYSTEM
.75 BR
6300-0
CHECK RELAY PAGE 6320-0
LIGHT SWITCH DETAILS
.5 GY/RD
J .75 GY/RD
~
al r--1 r---, I ! I I l--~'"' L .. _J HAZARD REAR ~ iiEFOGGER
PAGE 6300-0 ~ PAGE 6100-2
.5GY/RD
.5 GYIRD~.5 c:Oisll!"r~JB~!"':::i-.~501
GY•/~~:;;;;D.
(NOT USEDI
E £ill.
1- ' "'\ r---, l:IGAR I I I I I I Ll G HTE R{ '--' \. ... ./ I I ASHTRAY
i:iiiiiT5
AIC CONTROL I I iTiiiiT-POWER L..---1-
PAGE 6300-1
.75 GY/RD
.5 GYIRD
t"""'
"-) ASHTRAY LIGHT PAGE 6300-1
.5 GY{RD
.75 GY{RD (ACCESSORY CONNECTORI
V•ITH SOUND RADIO
·:::~. T. ' ~ ON1L y
IJ:::ii-~ .. 8345 .75 GYIRD
.75GY/WTr
4-'lg r---, I I I I .75 GYIWT I I L----' REAR LIGHTS CHECK RElAY PAGE 6320-0
.5 GY/WT
PAGE 6314·0
r~q .75 GY/WT -23. C2. .75 GY/WT r----1 t I 3
I• ._1 (---·\ /-,,
I \ . I \ / La--.J .... ___ .,.., ,_ INSTRUMENT .!!.!!..£.!!.!! !!!!.£!!!!lll CLUSTER TURN/PARK SIDE MARKER PAGE 8300·1 LIGHT LIGHT
.75 GY/ r~q iii\'iiE63oo-1
. 5 GY/RD .5 GY/RD 8345 •
WT C21~75 G::l-::J VL .75 GY/VL
3 ,---, r'
I ' I \ t I \ I '---~ ,_, ~ TURN/PARK LIGHT
PAGE 6314-0
SIDE MARKER LIGHT
.75 GY/RD
1 £1 r--l I I I I '---..aa REAR LIGHTS CHECK RELAY PAGE 6320-0
.75 GY{RD .75 GY{RD
...... \ ' .......... ' !!!!..ill!! SIDE MARKER LIGHT PAGE' 6J2o-o
(~) lH REAR SiDEMiiA KER
.llii!!!. PAGE 6320-0
PAGE 6314-0
1 1 •C215 ·•• u ""~ 1 ~--l rL· l (N:~o~:Eot [---1 I .. ·.. I . I I FADER.J oiiiirAL __ _. k.1!t!!fi!U. RADIO ~
~ PAGE 6500·0 PAGE 6500·0 PAGE 6500-2
LIGHT SWITCH DETAILS 6300-1
HOT AT ALL TIMES
r- ------1 POWER 1 ·ww· · 'iii'STiiiBUTION
I u liMP ,m L ....... ___ J
1 GY/GN
5~ C103 .75 GY/GN
10
r--~ .. -~---~~--:~.T~?:r~ ---, ~~~~H I·· .• H£~?· ·.• "Off·~---~ ... -F_,~-"t# •....•. •on .. l l .. s~{~: ........... ~~l~~ilff~~·~.J
.75GY/~:r .. 1!!!:001-~l!!!:ii-::.E;;-~~-1!:01-~~·:,;5 I.GY.!/:;;;RD-~E;;-~-~~~~~~· .75 GY/RD • REAR
1 GY/RD 18221 DEFOGGER
.75 GVIRD p-E3~ LIGHT SWITCH DETAILS
DASH LIGHTS
7 £W.,..~t ___ f ___ , HAZARD .5 GV/RD .75 GV/RD. L,, .5 GV/RD L .5 GV/RD ISWilcil DN·BOARD .5 !II"'"" 1 -- COMPUTER AD/ 23 W_cz 15215 5 GV/RD 5 GV/RD
.
r, -:g-o[~ll)18 GV 20 w-1 ................ ., INSTRUMENT - ,ill! . .
I ~I 5IK A ~Yll!! .5GV/RD .. ~.~ ..... ·.··. .5GY:~·~ I 1'1!\. ,: .5 :r 11:\ ~ I ~DASH ~ASHTRAY [~CIGAR . 1ll£. l
1 I~ J! 10 !~ 9jl ~~ \VY 1 \Z}~~:.!~ ~LIGHT ~~~~~EAR~ ~~~:!:oLI1f\ I .~) l~O _ I AIR ~ \JJi:i'ii'HTS ~
Otlt- Off L ...... :!.!.lJ Ct C31:24Yi:2 ............ J .5BRIWT CONDITIONING~ ,__ I -- I ..... ":Jt,!'.! _ _. !!. t .5 BR/WT = .5 BR!WT
8 .5BR/WT' 1 .5BR/WT II!""!:!iO ~=====-=-~-J ~~~C~~~~~-aek If J:!!!i S2J2
fli.~-~lllo. 81f C103
l!a--I!:OI--1!:01--I!:OII-3ii'5~B:i;jR/Wiili!:T -I!:OII--~-~I!!:;i-~E;;-~a·ll5
!!: .. BR•IW!!::T.._·!!::5 B .. R./W!!!:T-~ REAR .75 BRIWT L1 E!!L DEFOGGER
T .5 BR/BK 10 (NOT USED I .. 0
(ACCESSORY CONNECTOR I
.5 BR/BK
11A 5 ~io:;~~----~(,~i~f~>-oTM ____ l ~~~~H
1. .. . . . . ··.·•··· .· ..•.. · . • 111\l(lftT ... I l·---~-~---~---! _____ J
· 7:3::1--~ SEE OR (JUNO 1.5 BRI .IIISTRIBUTION
9lilll 1.5 BR
.H!!!!.
6312-0 HEADLIGHTS/FOG LIGHTS
HOT IN RUN OR START
r---~·-----::--,_s-J:1JT"0-~--~
I I
I I
I L..----------------------- ---------------------------· ------------~ ___ ..... _ ... ______ _ .5WT
.75 BR
.75 BR
.75 BR
G201 -= (STEERING
COLUMN GROUND)
.5 YL/GN
.5 YL/GN
C103 .5 YL/GN - 3
r ..• -.-.... · ..... -.· .....•.. -.·.·s·······.-... · ............ -.... · ...... ·.··.·."1··· •. LIGHT
56 .... · .. · ..• --. . .•. . I SWITCH
HEAD· ·· ··.QffJ '·-tJ2: __ ~ .. :,
GROUND .-- • SJO& DISTRIBUTION ~~-
g ,£!.!!1 1.5 BR
.._G2DD
BR
1 BR
HOT AT ALL TIMES
1 YL/BR
RH~
~
GROUND DISTRIBUTION
BR
I ............................... !
.5 YLIBR
DISTRIBUTION BOX
22 g .................. ,.. ...... ,INSTRUMENT
fOG LJQHTS ···I CLUSTER I~QIQATQR . P'iiiNTEiJ CIRCUIT
lD I 1Hl££N J ___ _!N~~~2.'!!
16 !<£
.5 BR
.5 WT/VI I I I I
12 ~
r. -__ -. __ --..••• -.. -.. ""· ... ·_·._ .. -.. __ ··• ••• ---•••..• -·._.-..•. _._·.··· .. ··•·.· ...... _··.·_ .•. _.·._ .• -..•. · ••.. _· •.•. _··.·· .. _ .. -.· .. · .... ·.·~··· ... ·--.~-.•...• ·_ .• _._·.·.·._ ...••. •• .. ·_·· .. •·· ... · .• _···._--·_· •• ··._ ..•. -.-_· ... -.·· •. _· .. _ .•. _···.···]_··· ... ··• •. ·.. INSTRUMENT
CLUSTER
1 10 HIGtfB!iAM _.· ..... _ ...... ·. ~ I llLUE INDICATOR . . .. •· .. · . . CIRCUIT
I lllbiCATQRS . •
~--~~---~~~-~- ~~ 16 g
.5 BR
1 BR
r----i1 .75 WT/VI I
I I
1 VL/WT
HIGH LOW
1 BR GROUND DISTRIBUTION
2.5 BR
HEADLIGHTS/FOG LIGHTS 6312-1
1 VL/BU
I WT/BU I
I
RH DUAL > a~.·.·-·· BEAM
1 BR
.. ---------·~~---------------------"·----------_. i !!.!!! 4 BR
6104
6313-0 TURN/HAZARD LIGHTS
HOT IN .ACCY, RUN OR START HOT AT ALL TIMES
.... -- -. -... --l'l!l-....... -. -------,.._"!"'_.-~...,~._.,.._..,_'!"" -'."" .• ·.- ~ ... -.. · .. ·"".·.· .. · .. -.. -.· ... · .. 1. POWER I ·.·· ... . .. ·.· .... ···. ·····--1 FUSE 4 . FUSE ?4 1 DISTRIBUTION I - • .. . IBDX I 15 AMP 15 AMP I -I I
L~ -----~------~~--·~~-~- ~---~-~
1.5 GN/VI 7 1.5 GN/VI
~ c202 r----~t:==~--1 ~
r--......... 1 ..... ·. COMBINATION I . · .. SWITCH
L__ .. ..J ~"::--'-------~ 10
1.5 VI/GY .75 BR 1.5 GN/YL 1.5 RD/WT
25lC103
~.5 RD/WT r-.:'__..-,...-,...--:-:-'i"fi------,~---,---, HAZARD 1.5 GN/YL
.5 VI
ACTIVE CHECK CONTROL UNIT
20 1.5 VI/GY
ll GHTS: DASH
SWITCH 8 C202
·""l"" .... G200 ... GZ01 - -- -(STEERING COLUMN)
1.5 GN/YL 27
-4 C103
NOTE: RESISTOR OIMS Tlf~ HAZARD SWITCH LIGHT WHE!\1 THE Ll GHT SWITCH IS IN "llEAQ'' OR"PARK" A!\10 TllE.HAZARP SWITCH IS OFF.
1.5 GN/YL
1 BU/BK
I BU/RO
13
15
I I I I I
16.
I I I I I
15
I 16
1.5 GN/YL
1.5 BU/BK
1.5 BU/RD
.5 DU/RD 1.5 i!U/RD
1 C2 1
LH REAR LIGHT ASSEMBLY
[~~!il]~if~~r !!:~:(]!
1.5 BU/RD
1.5 BU/RD
161g_ 1.58~1 .5 DR 8324. -~GROUND
1_58Rl DISTRIBUTION
.. G 2 0 0 !ill!!.
1.5 BU/BK
1.5 BU/BK
TURN/HAZARD LIGHTS 6313-1
.5 BU/BK
1.5 BU/BK
INSTRUMENT
PRINTED
13 ~ CIRCUIT
'.-.·-~·· .... -.·.•.• .. ··· .. ·.··.-...• ··.• .. -..•• -.·. ¢-•.. · ... -.---1 !·· .. ·.· .. ~OR I b, . __ :~~~~~-_j
16ICZ .5 DR
G200
6314-0 PARK/TAIL/FRONT MARKER LIGHTS
.5 GV/V~ ~--------------------------------~5-G~/WT .75 GV/:Lr .75 GYIWT
!!.!!! .75 GY/YL .5 GY/VL .5 GY/WT ~=-=-~--·~~=-~~~~
.75 GV/VL 1 ill!
GV/VL I .75 GV/Vl
2 3 LH FRONT iiiiiNiPAii K LIGHT
TURN l PAR_K __
1.5 BR
~ ' LH FRONT
":fi~~~'" .. ------·--·· SIOO
.75 GV/YL
GROUND
.75 GY/WT
POWER DISTRIBUTION
!!!!
.75 GY/WT S103 .75 GYIWT
.75GV/W1. ~ GY/WT
) RH FRONT
REAR LIGHTS :l ~~~~ER CHECK RELAY fill
.75 BR 1.5 BR
J 2 RH FRONT TURN/PARK
1 LIGHT
PARK TURN
•l!ls!l!111!14 -----•
2.5 BR
.. .,. ..... ,;,_._ -·-··-·'"1 RH REAR
4 BR GROUND DISTRIBUTION
l 1.5 BR 1.5 BR
1.6 BR
=
LIGHT
ASSEMBLY ·-----.. 8100
3
4 BR
GROUND DISTRIBUTION
6320-0 REAR MARKER/LICENSE/TRUNK LIGHTS
-----4
.75 BR
.75 BR . 75 BR
1.5 BR
-
HOT AT ALL TIMES
lc',::;~'~·!'~ ~'""" L ______ j
,.. ... I .................... 1POWER
1 GY/GN 5~ClOJ
.75GY/GN -10
.75 GY/RD .75 GY/RO
LH REAR (j).. . RH REAR SiiiEMiiRKER • .. ··.··•· · •• ·. ~KER !.!ill!! 1!!lli!.
GROUND DISTAl BUT I ON ...
1.75 BR .76 BR
.ill!
1 RD/GN
SJ19. ~::;;;;u!'':;;;ii~ ~ FUSE DETAILS
.75 RD/GN
NDN·CONVERTI BLE CONVERT! BLE
~--~--------~A·----------~
.75 RO/GN.r .... ·. .75 RO/G&· ~~ ·!!!.!!!!!i \.1) !.!.!!l!! . . • llil!I
BR/VII
.75 BR/BK
!.!!..!!!! !1m SWITCH CiiiSEii""wnH
_ TRUNK OPEN
LIGHT
~ [l] TRUNK
BR/VI
.75 BR
1.5 BR
*!ill!2
GROUND
6322-0 BACK UP LIGHTS 325e, 325i EXCEPT CONVERTIBLE
HOT IN RUN OR START
AUTOMATIC TRANSMISSION MANUAL TRANSMISSION
.75 BU/WT
4 r--~~~r.:-.-~:nif I ·. ' IIACI(I.Ii>
.75 GN/WT I
.75 BU/WT
.75 BU/WT
lli.!U!!' LIGHT SWITCH CLOSED IN REVERSE
~r-,7,77.-J,-0-~r··rri 8fUlWI $ACK liP · '. · I .!J..!l..!!I . I ASSEMBL V
I I OIIOUNO .,.... __ ..._., ···~...._~_... OROUNO f _;.;.. __ ...;...;.;....~.;..,.~...J ·---..... --.. ------
1.5 BR
GROUND DISTRIBUTION
I 1.5 BR
...__I~ ..
tm i"'' A.GJOO -=-
CONVERTIBLE
HOT IN RUN OR START
r.- ------1POWER DISTRIBUTION
I. FUSE 10 BOX I - .1 I 7.UMP I L -----·.o.l
.75 GN/WT
2 • ~~~FUSE
15 G~~ l ~ MANUAL TR::~:: .. AUTOMATIC TRANSMISSION
15GNNJ
r.-·-.... -•. · .•. ·· ....• -....•• ·· ... · .•.... -... · .• · .... · .. ·]-•....• · ...• · •. ·.· ... ·•·.·•·····•·· •.....•..... ·· ... -.·.·.· .. ·· ..... -•..•.... ··•· .•...•. -... · ... · ..•..•. -........ ·· •..• -.· .... ·•·.··.··.··• .. ··· ...• -•..... ·· •.•.. · .•..• ·· •.•... ····l······ .. ·· .. · .. ···· ...... ·· AUTOMATIC
I ' ., , .. ,. ·· ·• . ··· ·· ... · .·· ·.• TRANSMISSION
~. .· .·.~ .... · .. lt.·.···.··.·· .... · ........ · ...... ·.·· .. ~.· •··· .. x.· .. ·~·· .•... ·.· ... ·.·.·· .. ·.•.· .. · .. · ... RANGE SWITCH
I t" ..... ······ ... II I II If I> .· · ................. ·...I ~~~-~----- - ---,..,,.:1 .75 BU/WT
2 CJ01
.75 BU/WT .75 BU/WT
4 4
I . ···'· ·.· ."s .. wr i iJiiiiT I wt .. ~s • • ....... ·.···1 LIGHT .. ---.-.-.• -.··~·· ... ,LHREAR ... -~· ... -.. "" ... -.· ,.,. ........... -,.· RHREAR
k~:;:: .. _ . lJ ASSEMBLy Ll ·_:A~:~~!J ASSEMBLy
J J 1.5 BR 1.5 BR
GROUND DISTRIBUTION
T I
.. -••lllllsJ'IIIII24-· 1.5BRI-
.._oJoo
BACK UP LIGHTS 6322-1
6325-0 STOPLIGHTS
HOT.IN ACCY, RUN OR START
FUSE DETAILS
t 1 VI/G N ~ .5 Vl/GN R .5 VI!WT CRUISE
~l!:oi-~~-!!:iill~-!!:iill~-~~-!!:iill~- ·~--!!!:Oiil~--~~~~~--~~)lll!:~i!:oi-~l!:oi-~~-!!:iill~-!!:iill~-~~ CONTROL
1 VI/G~ 1 ill!!.
1 GN/RD
.75 GN/RD Ktl ~.... ....... -.:
~ SWITCH CLiiSEii' WITH BAA K E PEDAL DEPRESSED
1 GN/R~ y §ill. .5 GN/RD
.75 GN/RD
ACTIVE
S .5 GN/RD
: I ~ SWITCH OPENS WHEN ·5 GN/RO
CLUTCH PEDAL
I IS DEPRESSED
C20B
.5 GN/RO
CRUISE CONTROL
6330-0 INTERIOR LIGHTS CONVERTIBLE
HOT IN RUN ONLY FR0~1 UN LOADER RELAY K7 HOT AT ALL TIMES
.--1 I
I L.
.75 GN/BK
------,POWER
f!!W1 I DISTRIBUTION 1.6AMP : lli ______ _,
.--r------, POWER I PUS§ 2l I iiiSTiii"BUTION tl 25AMP I BOX - ______ j-
1.5 RD/BK .75 RD/BK llo FUSE
~··-- p DETAILS
" .. ,.: t~::~--~~:.:----------~;~2f ::.~ 1
S501 ._.. • MIRRORS S309. _... ((NOT USED) C503 .75 GN/WT .75 RD/BK
18
.75 GN/WT L,~;a1 •• 5!!:R:;;;D/•BI!K~~CENTRAL LOCKING
[-t~~.~.~~~.~~~~~~~~~~~~~~~~:;:.l.:.:.-.n.rF~~~~:: ______ l_!!~ __ ... ______________________ .!,!<_'l:, _____ ... J
.75 BR/GNI
19JC405 .75 BR/GN .75 BR/YL
3 C503
.75 BR/GN
,...... .... ~ DRIVER'S EXTERIOR DOOR HANDLE SWITCH CLOSEOWHEN DOOR HANDLE
.._~ ... IS LIFTED
-~ -=
1 BR
2
1 C503
,75 BR
r-- essoz
1 .7ssAJ-
2 C405
GROUND ·75 BR T -DISTRIBUTION • .!ill!!!
NOTE TIMER IS ENABLED WHEN DRIVER'S EXTERIOR DOOR HANDLE SWITCH AND ANY ODOR JAMB SWITCH CLOSE. TIMER STARTS A 6 TO 8 SECOND OPERATION AFTER ANY ODOR JAMB SWITCH IS THEN OPENED.
DRIVER'S DOOR JAMB SWITCH CLO$ED WITH DOOR OPEN
"111651.1!11Wi1
""l------, POWER I E!l§ll! J iiiSTiii 8 u Tl 0 N l :~:M:__ BOX
1 RD/GN
S319 -~~~-- FUSE ~DETAILS
.75 RD/GN ~ I .5 RD/GN SJ18 .!!::ii_,~II!!!:O-,.._.,;_""""'_..""]""'l
.75 R::-Nl 15 2 C304 ........ ., ACTIVE
I- I I CHECK
'L. .• CONTROL .5 RD/GN .... J UNIT
r-------~~~--------~DDME
.75 BR/VI
LIGHT
.75 RD/GN
PASSENGER'S DQOR JAMB
m.LW1 CLOSED WITH
.5 BR ACTIVE
~ ·----~ CHECK CONTROL
-: DOOR OPEN
GROUND DISTRIBUTION
..75 BR
Jt G200
325e, 325i EXCEPT CONVERTIBLE INTERIOR LIGHTS 6330-1
HOT IN RUN ONLY FROM UN LOADER RELAY K7 "'"*1·1151Mii1
I .... f. u. SE 19 .. ·.··• i DISTRIBUTION I FYSE 27 J' iiiSriiiBUTION I . 1.5AMP BOX I 26AMP BOX
ro-r· ------,POWER ro-r------, POWER ll ______ J l- ------1.5 RO/BK .75 RO/BK FUSE
.75 GN/BK ~· DETAILS 1.5 RO/BK 1 ·" ",.;. L~:~:---------------~~~:~~~ ",~ ,,., .
5501 • .,... . .. POWER J1!!l! • (NOT USED) MIRRORS C503
1.5 RO/BK CENTRAL .75 GN/WT .75 RD/BK LOCKING
r-----~ ------------------------,t~-------,~ I r~·~!ij:~~~c··~·:;7~l~T-;1~·~7TI~iiT~F~·J•• .•. ;~~~"' l ._•----~r----~-~---w ... _ _.. .. ~,_~_,•-0~,~-:-·•\ __ -- -<-: ~-• -_, .5 BR/VI --------'.!:.11.:.:.-'~~~~~~--··..li.i~~..;,.~~~-~-~~-~:~;.;;.;~~i't. .... ~ .. .;;..J
'"''-
.75 BR/GNI
19 IC405 .75 BR/GN
3 C503
.75 BR /GN
.75 BR/YL
4 ODOR ONLY
REAR
.!:!!..!!.!!.!! JAMB SWITCH CLOSED WITH
_ DOOR OPEN
3
• .75 BR/VI Y6 DRIVER'S EXTERIOR
DOOR HANDLE SWITCH
., CLOSED WHEN
31 DOOR HANDLE IS LIFTED
1 BR
2
1 C503
.75 BR
r--·S502
.75BR~-
GROUNO
2 1~ DISTRIBUTION
.75 BR
.A.G200
NOTE TIMER IS ENABLED WHEN DRIVER'S EXTERIOR DOOR HANDLE SWITCH AND ANY DOOR JAMB SWITCH CLOSE. TIMER STARTS A 6 TO 8 SECOND OPERATION AFTER ANY DOOR JAMB SWITCH IS THEN OPENED.
DRIVER'S DOOR JAMB SWITCH CLOSED WITH DOOR OPEN
EIII".!I·'"IM!s• '"t· ------,POWER I ·.· . FUSE.21 .1 iiiSTiiiBUTIDN ll. ·. 7.5 AM~ I BOX _______ J-
1 RO/GN
~~-=-=~~--£~=-~~~~ W S319
+ FUSE DETAILS
,.-------;~----....., ~
.75 BR/VI
PASSENGER'S DOORJAMB SWITCH CLOSED WITH
_ DOOR OPEN
!d.!!.!!!
RH REAR iiiiiiR.iAM B SWITCH CLOSED WITH DOOR OPEN
6410A-O HEATING AND AIR CONDITIONING
SYSTEM CHECK This procedure provides an overall check of
the Heating and Air Conditioning System. Each of the steps can be performed without disassembly or the use of tools.
Complete this procedure with the temperature outside the car above 60 degrees F (16 degrees C) and the engine warm and running at idle.
SYSTEM CHECK TABLE SET: Temperature Control fully counterclockwise
Upper and lower Slide levers to extreme left Center Slide lever to extreme right Blower Speed Control at 0 (OFF)
ACTION NORMAL RESULT
Press Fresh/Recirculating Air Switch (ON). Fresh/Recirculating pushbutton lights. Blower Release A/C button (OFF). runs slowly.
Rotate Blower Speed Control through steps 1 to Blower speed increases at each step to max-4. imum speed at step 4.
Press Fresh/Recirculating Air Switch to release Fresh/Recirculating button is no longer lighted. it (OFF). Outside air is drawn into car. (The sound of Flap
Door Motors may be heard repositioning flaps.)
Rotate Temperature Contol at least 1/4 turn Air flow becomes warm. clockwise.
Depress A/C button (ON). A/C button lights. A/C Compressor runs. Auxil-iary Cooling Fans runs.
Move Center Slide Lever to the extreme left. A/C button is no longer lighted. A/C Compressor turns off. Auxiliary Cooling Fan turns off.
Move Bottom Slide Lever to the center. A/C button lights. A/C Compressor turns off. Auxiliary Cooling Fan runs.
Press A/C button to release it (OFF). A/C button is no longer lighted. A/C Compressor turns off. Auxiliary Cooling Fan turns off.
Set Blower Speed Control to 0 (OFF). Blower turns off.
• If all of the steps can be completed as described, the Heating and Air Conditioning System is operating normally.
6411-0 A/C TEMPERATURE CONTROL 325e
HOT IN RUN ONLY FROM UN LOADER RELAY K7
GR/BR
(!] A/C IN·LINE
!!!.!!..!!!.
BR
..... 1 ..... ..,. ...... -.,PowER , ... ·· ·--1. J!1!:0 ~.:.:.:~~.::._:S;:..:..:R:..:.IB;:..;UT:..:..:IO=N
L- ------.J 4 GN/BR
2GNIB:r~ S2JOe _......._ FUSE
HOlWJ\TER Ofl
- ~~~DETAILS
l 20' .5 GN/BR . . "
HOT WATER HOT WATER · · : rnUT·OFF SWITCH OFF : ________________________________ J
WITCH IS OPENED WHEN ROTARVTEMPERATURECDNTROL KNOB·IS ROTATED BY MORE THAN 20' FROM COLDEST POSITION .
. 5 BU
.5 BR
A/C IN·
LINE FUSE 2AMP
SHUTS WATER OFF TO HEATER CORE WHEN ENERGIZED.
szzg
1. __ _.,.. ~~S~~~~UTION
2.5 BR
4'C204
2.5 BR
~!ill!
HOT IN RUN ONLY FROM UNLOADER RELAY K7 ,.,1-... · .... -.. --1powER
'· ...• ·· .... ·.···.F .. y. S·.· £ z.·.O· .. . · ...•. I 'ii'iS'TRi B U Tl 0 N I .. 30 AI.., . . I BOX L ... ______ j
4 GN/BR
2JC204 2 GN/BR
FUSE SlJO·~~~ DETAILS
.5 GN/BRI
SWITCH IS OPENED WHEN ROTARY TEMPERATURE CONTROL
lo....o~,..KNOB IS ROTATED BY MORE THAN
.75 BU
. 5 BR
20' FROM COLDEST POSITION.
A/C IN· LINE FUSE 2AMP
WATER SHUT·Off SOLENOID SHUTS WATER OFF TO HEATER CORE WHEN ENERGIZED .
GROUND
2~:::~·--~ DISTRIBUTION
4 C204
2.5BR,-
~!W!l!.
325i A/C TEMPERATURE CONTROL 6411-1
HEATING AND AIR CONDITIONING (HOT WATER CONTROL)
HOT WATER ON
20'
HOT WATilR """ OFF
6411A-O A/C TEMPERATURE CONTROL
CIRCUIT OPERATION The Water Shut-Off Solenoid controls the
flow of engine coolant through the heater core. When the Solenoid is energized, coolant flow is shut off to allow maximum cooling from the Air Conditioning System. The Water Shut-Off Solenoid is controlled by the Hot Water Cut-Off Switch, which is part of the A/C Control Panel TEMP Control.
Battery voltage is applied through Fuse 20 to the Hot Water Cut-Off Switch when the Ignition Switch is in RUN. The Hot Water Cut-Off Switch is closed when the TEMP Control is rotated fully counterclockwise (coldest position), and opens when the Control is rotated more than 20 degrees in a clockwise direction. When the Switch is closed, battery voltage is applied through the A/C In-Line Fuse to the Water Shut-Off Solenoid. The Solenoid is energized and shuts off the coolant flow through the heater core.
Whenever the Water Shut-Off Solenoid is deenergized, the collapsing magnetic field induces high voltage in the coil. The A/C In-Line Diode, in the 325e, provides a path for the voltage so that it does not damage the contacts of the Hot Water Cut-Off Switch.
The Water Shut-Off Solenoid and A/C In-Line Diode are protected by the A/C In-Line Fuse. If any failures occur in the Solenoid or Diode, the Fuse will isolate them to prevent the failure from affecting other parts of the Heating and Air Conditioning Circuits.
TROUBLESHOOTING HINTS • Try the following checks before doing the Sys
tem Diagnosis.
1. Check that Water Shut-Off Solenoid connector is firmly seated.
2. Check the A/C In-Line Fuse. If fuse is blown, check for a shorted A/C In-Line Diode.
• Go to Heating and Air Conditioning (6410A-0) System Check for a guide to normal operation.
• Go to System Diagnosis for diagnostic tests.
SYSTEM DIAGNOSIS • Do the following test if the Water Shut-Off
Solenoid does not operate normally.
WATER SHUT -OFF SOLENOID TEST (TABLE 1)
Measure: VOLTAGE At: WATER SHUT-OFF SOLENOID
CONNECTOR (Disconnected) Conditions:
• Ignition Switch: RUN • A/C Control Panel TEMP Control: FULLY
COUNTERCLOCKWISE
Measure Correct For Diagnosis Between Voltage
BU &Ground Battery See 1
BU&BR/RD Battery See2 orBR
• Rotate A/C Control Panel TEMP Control to Mid Position
BU &Ground 0 Volts See3
(Continued in next column)
(Continued from previous column)
• If all voltages are correct, replace the Water Shut-Off Solenoid.
1. Check the BU wire and A/C In-Line Fuse for an open. If fuse is open, check that A/C In-Line Diode is not shorted. If it is, replace it. If wire, Fuse and Diode are good, go to Table 2.
2. Check the BR/RD or BR wire for an open to ground. Check that connector C204 is properly mated.
3. Check BU wire for a wire to wire short to voltage. If wire is good, replace the A/C Control Panel TEMP Control.
WATER SHUT-OFF SOLENOID TEST (TABLE 2)
Measure: VOLTAGE At: HOT WATER CUT -OFF SWITCH
CONNECTOR (Disconnected) Conditions:
• Ignition Switch: RUN • Water Shut-Off Solenoid: CONNECTED
Measure Correct For Diagnosis Between Voltage
GN/BR& Battery See 1 Ground
GN/BR&BU Battery See2
• If both voltages are correct, replace the A/C Control Panel TEMP Control.
1. Check theGN /BR wire for an open back to Fuse 20.
2. Check the BU wire for an open.
6413-0 A/C BLOWER CONTROLS
HOT IN RUN ONLY FROM UN LOADER RELAY K7
.5 BR/WT .5 BR/WT DASH ~-=-I!'!Oi-:;.-!!:aa<llllil LIGHTS
81 .75 BR GROUND DISTRIBUTION .,..._ ___ • §1!!!!
1.5 BRl 9,~
1.5 BR ..... G200
LIGHT SWITCH
2.~2[E3~·
•. ·• ..•.. · ... ··.·· ..... ··••·.·.·.· .. ···••·.··. 'BLOWER
MOTOR M --
2.5 GN/BR
2.5 BK
2.5 GN
2.5 BU
2.58Rl GROUND 8229·----..... DISTRIBUTION
2.5BR1 4,~
2.5 BR
.G200 --
6413A-O A/C BLOWER CONTROLS
CIRCUIT OPERATION With the Ignition Switch in RUN, battery
voltage is applied to the Control Switches and the Blower Speed Control through the GN/BR wires. If either the A/C Select Switch or the Fresh/Recirculating Air Switch are ON or the Blower Speed Control is in position 1, battery voltage is applied through the YL wire to the Blower Resistors and the Blower Motor.
The Blower Motor is a variable speed motor which runs at a speed proportional to the voltage applied to it. With all of the Blower Resistors in the circuit, the voltage applied to the Motor is reduced so the Motor runs at a low speed.
As the Blower Speed Control is moved through positions 2 and 3, some of the Resistors are bypassed, allowing more voltage to be applied to the Blower Motor, which then runs at a higher speed. When the Blower Speed Control is moved to position 4, battery voltage is applied directly to the Blower Motor, which then runs at maximum speed.
The Blower Resistors dissipate heat because of the current flowing through them. They are cooled by the air flow from the Blower. If there is insufficient air flow to cool the Resistors, the Safety Switch will open, shutting the Blower Motor off until the Resistors have cooled.
TROUBLESHOOTING HINTS • Try the following checks before doing the Sys
tem Diagnosis.
1. Check Fuse 20 by visual inspection.
2. If Blower will run in high only, check the Blower Resistors' Safety Switch for an open.
• Go to Heating and Air Conditioning (6410A-0) System Check for a guide to normal operation.
• Go to System Diagnosis for diagnostic tests.
SYSTEM DIAGNOSIS • Do the tests listed for your symptom in the
Symptom Table below.
• Tests follow the Symptom Table.
SYMPTOM TABLE
SYMPTOM DO TEST
Blower Motor does not run in any speed B setting.
Blower runs only in HIGH (does not run B in any other speed setting).
Blower does not run A in some modes.
Blower does not run with A/CON or in A Recirculating mode.
A/C Select Switch or Fresh/Recirculating
A Air Switch does not light.
A· CONTROL SWITCH VOLTAGE TEST Measure: VOLTAGE At: CONTROL SWITCHES CONNECTOR
(Disconnected) Conditions:
• Ignition Switch: RUN • Blower Speed Control: OFF
Measure Correct For Between Voltage Diagnosis
1 (GN/BR) & Battery See 1 Ground
(Continued in next column)
(Continued from previous column)
1 (GN/BR) & 3 Battery See2&4 (YL)
7 (GN/BR) & Battery See 1 Ground
7 (GN/BR) &5 Battery See2&4
(YL)
7 (GN/BR) &6 Battery See3 (BR/WT)
• If all voltages are correct, do Test B.
1. Check the GN/BR wire for an open. 2. Check the YL wire for an open. 3. Check the BR/WT wire for an open.
4. If voltage is not present between theGN/ BR wire and both the YL wires (terminals 3 and 5), do Test B.
B· BLOWER SPEED CONTROL TEST Measure: VOLTAGE AT: BLOWER SPEED CONTROL
CONNECTOR (Disconnected) Conditions:
•Ignition Switch: RUN • A/C Select Switch: ON (Depressed) • Fresh/Recirculating Air Switch: FRESH
(Not Depressed)
Measure Correct For Diagnosis Between Voltage
4(GN/BR) & Battery See 1 Ground
7 (YL) & Battery See2 Ground
• A/C Select Switch: OFF (Not Depressed)
7 (YL) & OVolts See3 Ground
(Continued on next page)
(Continued from previous page)
4 (GN/BR)& 7 Battery See4, 8, 9, &
(YL) 10
4 (GN/BR)& 1 Battery
See5, 8, 9,& (BK) 10
4 (GN/BR) &2 Battery
See6, 8, 9, & (GN) 10
4(GN/BR)&3 Battery See 7 & 10 (BU)
• If all voltages are correct, replace the Blower Motor.
1. Check the GN/BR wire for an open. 2. Check the YL wire for an open between
Blower Speed Control and splice S231.
3. Check the YL wire for a wire to wire short to voltage.
4. Check the YL wire for an open between splice S231 and the Blower Resistors.
5. Check the BK wire for an open.
6. Check theGN wire for an open. 7. Check the BU wire fran open.
8. If voltage is not present at the YL wire, but is present at theGN wire or BK wire, replace the Blower Resistors.
9. If voltage is not present at the YL, BK or G N wires, check for an open Blower Resistors' Safety Switch.
10. If voltage is not present at the YL, BK, G N and BU wires, do Test C.
A/C BLOWER CONTROLS 6413A-1
C: BLOWER MOTOR TEST Measure: VOLTAGE At: BLOWER MOTOR CONNECTOR
(Disconnected) Conditions:
• Ignition Switch: RUN • A/C Select Switch: ON • Blower Speed Control: HIGH
Measure Correct For Diagnosis
Between Voltage
BU&Ground Battery See 1
BU&BR Battery See2
• If both voltages are correct, replace the Blower Motor.
1. Check the BU wire for an open. If wire is good, recheck Test B.
2. Check the BR wire to ground G200 for an open.
6421-0 A/C AIR DELIVERY CONTROL
HOT IN RUN ONLY FROM UNLOAOER RELAY K7 .--I ................... , POWER
, .• ~"4" ]~'"''" L ______ J 4 GN/BR FUSE
2 'f cz,_...--. DETAILS
.5 GN/BR .5 GN/BR 2 GN/BR w. ~~~~Ea~~--~~~~~~~~~~~~~~~~~~~~Ea~~~~~~~~
S230
SEE HEATING AND Alii CONDITIONING (BLOWER COJIITROLS)
IIHSIDE
FRESH • AIR
? .. fA AI 1 ( I I I I ltl I I AIR TO \ I 1 I I ' I I I I 1 8LI)WEI\ , · I
..,.(' MOTOR 'd- ! I
RECIRCULATING AIR : r :~:~::.::::: .. ,.· "f.. : J
.5 GN
LH SIDE
• FRESH AIR
87 i w j
,....,~-~::or-...-., LH FRESH/
.5 DR
RECIRCULATING AIR RELAY
~ I
I RH l
=====.5=W=T==========~~~~~~--1-•Y•L .. i~~ .... ~~ ................. 5.Y.L ............ .. .5WT LH
FRESH/RECIRCULATING AIR FLAP DOOR MOTORS
I
' I
2.5 BR ' __..... SEE ORO UNO
~--4 C204 DISTRIIIUTION
z.5DR~-ozoo
.5 DR
RECIRCULATING AIR RELAY
6421 A-0 A/C AIR DELIVERY CONTROL
CIRCUIT OPERATION When the Ignition Switch is in RUN, battery
voltage is applied to terminal 7 of the Control Switches, the normally open contacts of the LH Fresh/Recirculating Air Relay, and the normally closed contacts of the RH Fresh/Recirculating Air Relay. If the Fresh/Recirculating Air Switch is not depressed (open), battery voltage is applied through the normally closed contacts of the RH Fresh/Recirculating Air Relay to both Fresh/Recirculating Air Flap Door Motors and then to ground through the normally closed contacts of the LH Fresh/Recirculating Air Relay. Both Motors operate and move the Fresh/Recirculating Air Flap Doors to position A, allowing fresh air to enter the blower.
When the Fresh/Recirculating Air Switch is depressed (closed), battery voltage is applied through the Switch to both the LH and RH Fresh/Recirculating Air Relay coils. Both Relays are energized. Battery voltage is then applied through the closed contacts of the LH Fresh/Recirculating Air Relay to the Flap Door Motors, and to ground through the closed contacts of the RH Fresh/Recirculating Air Relay. Since the voltage is now applied to the Flap Door Motors in the opposite direction, the Motors reverse direction and move the Fresh/ Recirculating Air Flap Doors to position B, allowing only recirculating air to enter the blower. Both of the Air Flap Door Motors remain energized continuously. When the Doors reach the end of their travel, the Motors stall and hold the Doors in position.
TROUBLESHOOTING HINTS • Try the following checks before doing the Sys
tem Diagnosis.
1. Check that LH and RH Fresh/Recirculating Air Relays are firmly seated.
2. Check that LH and RH Fresh/Recirculating Air Relay pigtail connectors are properly mated.
• Go to Heating and Air Conditioning (6410A-0) System Check for a guide to normal operation.
• Go to System Diagnosis for diagnostic tests.
SYSTEM DIAGNOSIS
• Do the tests below if the Fresh/Recirculating Air Flap Doors do not operate.
A: FRESH/RECIRCULATING AIR FLAP DOOR MOTOR VOLTAGE TEST
Measure: VOLTAGE At: FRESH/RECIRCULATING AIR FLAP DOOR
MOTOR PIGTAIL CONNECTORS (Disconnected)
Conditions: • Ignition Switch: RUN • Fresh/Recirculating Air Switch:
RELEASED (FRESH)
Measure Correct For Diagnosis Between Voltage
WTand Battery See 1 Ground
WTandYL Battery See2
• \Fresh/Recirculating Air Switch: bEPRESSED (RECIRCULATING)
Y:L and Battery See3 Ground
(Continued in next column)
(Continued from previous column)
YL and WT I Battery J See 3
• If all voltages are correct, replace the inoperative motor.
1. Check the WT wire for an open. If wire is good, do Test B for RH Air Relay.
2. Check the YL wire for an open. If wire is good, do Test B for LH Air Relay.
3. Do Test B for both Air Relays.
B: FRESH/RECIRCULATING AIR RELAY VOLTAGE TEST
Measure: VOLTAGE At: FRESH/RECIRCULATING AIR RELAY
CONNECTOR (Disconnected) Conditions:
• Ignition Switch: RUN • Fresh/Recirculating Air Switch:
DEPRESSED (RECIRCULATING) • Fresh/Recirculating Air Flap Door Motor
Connectors: CONNECTED
Measure Correct For Diagnosis
Between Voltage
87 (GN/BR) Battery See 1 and Ground
86 (GN) and Battery See2 Ground
86(GN) and Battery See3 85 (BR)
86 (GN) and Battery See3 87a(BR)
(Continued on next page)
(Continued from previous page)
• If all voltages are correct, replace the suspect Fresh/Recirculating Air Relay.
1. Check the GN/BR wire for an open. 2. Check theGN wire back to the Control
Switches for an open. If wire is good, do Test C.
3. Check the BR wire for an open.
C: CONTROL SWITCHES VOLTAGE TEST
Measure: VOLTAGE At: CONTROL SWITCHES CONNECTOR
(Disconnected) Condition:
• Ignition Switch: RUN
Measure Correct For Diagnosis
Between Voltage
7 (GN/BR)& Battery See 1
Ground
7 (GN/BR) &8 Battery See2 (GN)
• If both voltages are correct, replace the Control Switches.
1. Check the G NIB R wire for an open. If wire is good, check that connector C204 is properly mated.
2. Check theGN wire for an open between the Control Switches and the LH and RH Fresh/Recirculating Air Relays.
A/C AIR DELIVERY CONTROL 6421 A-1
6452-0 A/C COMPRESSOR CONTROLS 325e EARLY PRODUCTION
HEATING ANQ·.AIR CQNDITIQI\UN~.(COIVIPRESSORCONTflOl..S)
AIC COMPRESSOR
BK
BK
HOT IN RUN ONLY FROM UNLOADER RELAY K7
~·r· ' .. -.... .., .. ,POWER J . · .. F .. U .. s. E .20. .• iiiSTiiiBUTION I ·- .. ,BOX I 30AMP ·--1 ..... l- ______ .J
4 GN/BR 2 C204
2.5 GN/BR~- FUSE
SZJO'~~~ DETAILS 1 1 I GN/8~
l_-_l_------------------------------------il .. l ;;~~~f~:::::,~~ ~=~::·.':::.~::~:::: .. "'
·.··
l1 A/C CONTROL PANEL. THIS PREVENTS FREEZING UP
I WJ OF THE EVAPORATOR.
r---i!~!;;i·;.l;~t. ---.1x.·.-.-. -r----.. -------2~:.~~L.:. ~:o .. ~1 =
I /._~ ·l_. ~ ·· AIR SWITCH L ___ -_1 ____ :: .. ~- :_______________ _ ________ J
.5 BU/WT
gj ~ cl05 r--! A/C i INP
-.:o;;::-ToLE SPEED UT . CONTROL UNIT
I I I , _____ ..J
QK .• , ... .
... ,,, ..... , .. ,.·.,·.·.·
COMPRESSOR C~QTC~
. > BK ,.'·n--. + > I .•·
~gMPRESsDR ·. OIL TEMPERA TUlliS ~
CID&
.5 BKIWT
2 6¥
I SEE HEATING AND AIR CONDITIONING I VI (BLOWER CONTROLS)
r:-1.5 BK!WT ~ .75 BK/WT
~ LOW PRESSURE
.. _1 CUT-OUT SWITCH OPENS WITH LOSS OF REFRIGERANT
HIGH PRESSURE \c .. . CUT-OUT SWITCH ' OPENS ABOVE
~ ,.l i 385 PSI (26.6 BAR) CLOSES BELOW
BK 307 PSI (21.2 BAR)
l~
AUXILIARY FAN
1.5 BK/RD
.5 BRIWT .. -=o_I!:Oil-=:..l!:ii-::;o( (NOT USED)
C107
LATE PRODUCTION A/C COMPRESSOR CONTROLS 6452-1
HOT IN RUN ONLY FROM UN LOADER RELAY K7
A/C CONTROl PANEL ri.·. ··. ------1POWER
I , ;~::· .!;;"''""" l .. ______ J
4 GN/BR 21t'C204
2.5 GN/BR"- FUSE
SZJD,~r::iiii~ DETAILS 1 1 1 GN/BR)l
i---L_---------------------------------- +.t····~ .. ·.· .. · .. ··• .·. ·•.1 E.:i!lE~~: .. '""'"' '""" .. , """ "... SLIDE LEVERS ARE PLACED IN THE UNSHADED AREA ON THE
A/C CONTROL PANEL. THIS PREVENTS FREEZING UP I w: OF THE EVAPORATOR.
r---;.-. >.· .... -.N:;t;E~;:;,;t~:.· •. ·.·.· .. ·.-.... ------... ~~~---.. -... -..... -.. --. -r.·.~r.~.: ... ~.;.~.-.A.· .. ~:-~.~ ~ 1. •• . "" .. -.... -:-:7-7 ...... ' ......... ·.·.·.··.·.·.·.·.·•• · .. • •. · .. •·.•··.•.· ... ··.·· .. ·.,.· .... AIR$W.·IT·cll .• II
L .... :.J ____ ::_Gl ~~L.liL~~~-----~--;t; ____ ! ____ J 2J sy ~~~~~~~~~~~~~~~~~B~~~V~I~~~~~~~~~~~~~~~~~·1 ~8 K•/•~ ~u IB~~ t AU~LARY I ~EHEAnNGANDAIRCONrnnoNtNG IF
1• ., FAN (BLOWER CONTROlS)
.5 BU/WTI C136
41
[
iiic-"1 MOTRONIC
INPUT··J· . I f!!.!'lli!!!!:. !!!ill
---
1 BK/VI l 3 G200
~------------------------------ ... --------------A!ctiiO:UFSr--1 ~~::~::;~:E
I .. . . .·. .• .. ,EVAPORATOR .···•••· .. · I REGUlATOR I GROUND . . OROU~II . . . . • TEMPINPUT . •. . • . . . . . . I
------------··------~------·---~----------------------~ 4 BK/W~I
BR
,_.,.....,EVAPORATOR
BR GROUND DISTRIBUTION
BR
I ...:I .. __ IS229 .258R -
... :r!! f:GZOQ
TEMPERATURE
~
=
6452-2 A/C COMPRESSOR CONTROLS
1.5 BK/RD
1.5 BK/RD
1c211
1 BU/WT
401 r----1 MOTRONIC 1 AlCON ~~~~ I INPUT I~ L----J~
r-----. JMOTRONIC
l A/CON INPUT ~
UNIT ---- -
LATE PRODUCTION
1.5 BK
1.5 BK/RO
LOW PRESSURE CUT·OUT SWITCH OPENS WITH LOSS OF REFRIGERANT
1.5 BK/RD
A/C COMPRESSOR
6452A-O A/C COMPRESSOR CONTROLS
CIRCUIT OPERATION When the Ignition Switch is in RUN, battery
voltage is applied through Fuse 20 to the Compressor Enable Switch. This Switch is located in the A/C Control Panel and is closed when either the center or lower slide levers are moved about lf4 of the distance away from the left position. This ensures that the A/C Compressor does not run unless there is enough air flow to prevent freezing of the evaporator.
325e Engine
When the A/C Select Switch on the A/C Control Panel is pressed and the Compressor Enable Switch is closed, voltage is applied to the Compressor Clutch through the normally closed Evaporator Temperature Switch, the Low Pressure Cut-Out Switch and the High Pressure Cilt-Out Switch.
1,
The Evaporator Temperature Switch opens if the evaporator temperature drops low enough for freezing to begin. The Low Pressure CutOut Switch opens if the refrigerant pressure drops low enough that operation of the A/C System would be likely to damage the Compressor. The High Pressure Cut-Out Switch opens if refrigerant pressure rises to a point that is too high for normal operation.
325i and M3 Engines
When the A/C Select Switch is pressed and the Compressor Enable Switch is closed, voltage is applied to terminal 3 of the Evaporator Temperature Regulator. The Evaporator Temperature Regulator applies voltage from terminal 2 to the Compressor Clutch through the High Pressure Cut-Out Switch, the Low Pressure Cut-Out Switch, and the Temperature Switch (M3 engine).
The High Pressure Ct;tt-Out Switch opens if refrigerant pressure rises to a value which is too high for normal operation. The Temperature Switch (M3 Engine) opens to remove the Compressor load from the engine if the engine coolant temperature rises above 226 °F (108 °C). The Evaporator Temperature Sensor signals the Evaporator Temperature Regulator to deenergize the Compressor Clutch when evaporator temperature is low enough that freezing may result.
Clutch Diode
Whenever the Compressor Clutch is de-energized, the collapsing magnetic field induces a voltage in the winding. The Clutch Diode provides a path for the resulting current;
TROUBLESHOOTING HINTS
• Try the following checks before doing the System Diagnosis.
1. Check Fuse 20 by visual inspection.
2. Check that Compressor Clutch connector is firmly seated.
• Go to Heating and Air Conditioning (6410A-0) System Check for a guide to normal operation.
• Go to System Diagnosis for diagnostic tests.
SYSTEM DIAGNOSIS • Do the tests listed for your symptom in the
Symptom Table below.
• Tests follow the Symptom Table.
SYMPTOM TABLE 325e Engine
Compressor Clutch does not engage but A Auxiliary Cooling B Fan runs
Compressor Clutch does not engage and Auxiliary Cooling c Fan does not run
Engine idle speed is not high enough when Compressor D Clutch engages
SYMPTOM TABLE 325i and M3 Engines
Compressor Clutch does not engage E
Engine idle speed is not high enough when Compressor H Clutch engages (325i engine only)
A: LOW PRESSURE CUT-OUT SWITCH VOLTAGE TEST
Measure: VOLTAGE At: LOW PRESSURE CUT -OUT SWITCH
CONNECTOR (Disconnected) Conditions:
• Ignition Switch: RUN (Engine need not be running)
• A/C Control Panel: A/C ON • Temperature Outside Car: Above 60
degrees F (16 degrees C)
Measure Correct For Diagnosis
Between Voltage
BK/WT& Battery See 1 Ground
• If voltage is correct, do Test B.
1. DoTestC.
B: COMPRESSOR CLUTCH VOLTAGE TEST
Measure: VOLTAGE At: COMPRESSOR CLUTCH CONNECTOR
(Disconnected) Conditions:
• Ignition Switch: RUN (Engine need not be running)
• A/C Control Panel: A/CON • Temperature Outside Car: Above 60
degrees F (16 degrees C)
Measure Correct For Diagnosis
Between Voltage
BK&Ground Battery See 1
• If the voltage is correct, replace the Com-pressor Clutch.
(Continued in next column)
A/C COMPRESSOR CONTROLS 6452A-1
(Continued from previous column)
1. Check for an open Low Pressure Cut-Out Switch, High Pressure Cut-Out Switch or associated wiring. If High Pressure CutOut Switch is open, replace it. If Low Pressure Cut-Out Switch is open, check refrigerant pressure to be sure it is normal before replacing the Switch.
C: A/C SELECT SWITCH VOLTAGE TEST
Measure: VOLTAGE At: CONTROL SWITCHES CONNECTOR
(Connected) Conditions:
• Ignition Switch: RUN • A/C Control Panel: A/CON • Temperature Outside Car: Above 60
degrees F ( 16 degrees C)
Measure Correct For Diagnosis
Between Voltage
4(WT) & Battery See 1
Ground
2 (VI) & Battery See2
Ground
• If both voltages are correct, check that the Evaporator Temperature Switch is closed. If the Evaporator Temperature Switch is open, replace it. If the Evap-orator Temperature Switch is closed, check for an open in the VI and BK/WT wires.
(Continued in next column)
(Continued from previous column)
1. Check that the Compressor Enable Switch is closed. If the Compressor 'Enable Switch is open, replace the A/C Control Panel. If the Compressor Enable Switch is closed, check for an open in the WT and GN/BR wires. ·
2. Replace the A/C Select Switch.
D: IDLE SPEED CONTROL UNIT VOLTAGE TEST
Measure: VOLTAGE At: IDLE SPEED CONTROL UNIT
CONNECTOR (Connected) Conditions:
• Ignition Switch: RUN • A/C Control Panel: A/C ON • Temperature Outside Car: Above 60
degrees F (16 degrees C)
Measure Correct For Diagnosis
Between Voltage
9(BU/WT)& Battery See 1 Ground
• If the voltage is correct, repair/replace the Idle Speed Control Unit.
1. Check for an open in the BU/WT and VI wires.
6452A-2 A/C COMPRESSOR CONTROLS
E: A/C ISOLATION TEST
Measure: VOLTAGE At: HIGH PRESSURE CUT-OUT SWITCH
HARNESS CONNECTOR (Disconnected) Conditions:
• Ignition Switch: RUN (Engine need not be running)
• A/C Selector Switch: Depressed (ON)
Measure Correct For Diagnosis
Between Voltage
BK/WT& Battery See 1 Ground '
• If voltage is correct, go to Test F .
1. Go to Test G.
F: COMPRESSOR CLUTCH VOLTAGE TEST
Measure: VOLTAGE At: COMPRESSOR CLUTCH HARNESS
CONNECTOR (Disconnected) Conditions:
• Ignition Switch: RUN (Engine need not be running)
• A/C Control Panel: A/C ON • Temperature outside car: Above 60°F
(16°C)
Measure Correct For Diagnosis
Between Voltage
BKorGY/WT wire & Ground
Battery See 1 (See
Schematic)
(Continued in next column)
(Continued from previous column)
• If the voltage is correct, but Compressor Clutch does not engage, replace the Compressor Clutch.
1. Check for an open Low Pressure Cut-Out Switch, High Pressure Cut-Out Switch, A/C Temperature Switch, or associated wiring (see Schematic). If High Pressure Cut-Out Switch is open, replace it. If Low Pressure Cut-Out Switch is open, check refrigerant pressure to be sure it is normal before replacing the Switch. Replace the A/C Temperature Switch if it is open and engine coolant temperature is below 226 °F (108 °C).
G: EVAPORATOR TEMPERATURE REGULATOR VOLTAGE AND RESISTANCE TEST (TABLE 1)
Measure: VOLTAGE At: EVAPORATOR TEMPERATURE
REGULATOR CONNECTOR (Disconnected)
Conditions: • Ignition Switch: RUN • A/C Selector Switch: ON
Measure Correct For Diagnosis
Between Voltage
3 &Ground Battery See 1
3&4 Battery See2
3&6 Battery See3
• A/C Selector Switch: OFF
3 &Ground 0 Volts See4
• If all voltages are correct, go to Table 2 .
(Continued in next column)
(Continued from previous column)
1. Check the BK/VI wire for an open (see schematic). If wire is good, do Test C.
2. Check the BR wire from terminal4 for an open (see schematic).
3. Check BR wire for an open.
4. Check the BK/VI wire for a wire-to-wire short to voltage. If wire is good, replace the A/C Selector Switch.
G: EVAPORATOR TEMPERATURE REGULATOR VOLTAGE AND RESISTANCE TEST (TABLE 2)
Measure: RESISTANCE At: EVAPORATOR TEMPERATURE
REGULATOR CONNECTOR (Disconnected)
Conditions: • Ignition Switch: OFF • Negative Battery Terminal:
DISCONNECTED
Measure Correct For Diagnosis Between Resistance
Approxi-2 &Ground mately 3 to 4 See1
Ohms
Approxi-
1 &Ground mately3.5K
See2 to4.5Kohms at 70°F (21 °C)
5&2 Less than 0.5
See3 ohms
(Continued on next page)
(Continued from previous page)
• If all resistances are correct, but Compressor Clutch does not operate normally, replace the Evaporator Temperature Regulator.
1. Check the VI wire for an open between the Evaporator Temperature Regulator terminal 2 and High Pressure Cut-Out Switch (see schematic).
2. Check the BK/WT wire for an open or a short to ground (see schematic). Check the BR wire from terminal6 to splice S229 for an open (see schematic). If wires are good, replace the Evaporator Temperature Sensor.
3. Check BK/YL wire at terminal 5 for an open between terminal 5 and High Pressure Cut-Out Switch.
H: IDLE SPEED CONTROL VOLTAGE TEST
Measure: VOLTAGE At: MOTRONIC CONTROL UNIT
CONNECTOR (Connected) Conditions:
• Ignition Switch: RUN • A/C Control Panel: A/CON • Temperature Outside Car: Above 60
degrees F (16 degrees C)
Measure Correct For Diagnosis
Between Voltage
40(BU/WT)& Battery See 1 Ground
(Continued in next column)
A/C COMPRESSOR CONTROLS
(Continued from previous column)
• If the voltage is correct, repair/replace the Motronic Control Unit.
1. Check for an open in the BU/WT and BK/ RDwires.
6452A-3
6454-0 AUXILIARY FAN 325e
HOT AT All TIMES
I L------------·
________ J
.75 BA
4 BK/BU 2
HOT IN RUN ONLY FROM UNLOADER RELAY K7
·-··-·-~·-·-~·-·~---·-·~~-~··~
.75 GN/BK
NORMAL SPEED
£!!.!!.1ID TEMPERATURE
CLOSED ABOVE 196' F (99' C) (RED TERMINALS)
L...~~~
.75 BK/BA .75 BK
AD BK
IL-..-..... AUXILIARY FAN NORMAL SPEED BLOWER RESISTOR 6 OHMS
AUXILIARY FAN
BR
1 TEill 2.5 BA
~~
CLOSED ABOVE 196' F (91' CJ !WHITE TERMINALS)
f
I ~~""'""'P!!'*""""""" I. t: ... .,.., ..... , ...... ·. r~~~,.._.,
I I l ___ _
4 BK/GN
.75 BA
DISTRIBUTION
!!!!.
1 VI
-.Q.- EVAPORATOR
1.5 BKIWT
AIR CONDITIONING (COMPRESSOR CONTROLS)
HOT AT ALL TIMES
4 BK(BU
FUS£!8 30AMP
.75 BR
I I I ________ J
2
.75 BK(BA
AD
AUXILIARY FAN
HOT IN RUN ONLY FROM UNLOADER RELAY K7
.75 BK
BK
........ _ _, AUXILIARY FAN NORMAL SPEED BLOWER RESISTOR &OHMS
1 '£ill 2.5 BA
---~
325i
.75 BA
AUXILIARY FAN 6454-1
.75 BK/ VI
1 BK(VI
7~ 1 BKfVI • S226
C204
1 BK/VI
3
r----]. EVAPORATOR
~. E~ .. U .. ·.·.E. S.T •. ••. TEMPERATURE I INPUT . • REGULATOR
I L ... __ _
6500-0 RADIO/ANTENNA
HOT IN ACCY, RUN OR START
.75 VI/WT
X
CLUSTER
(ACCESSORY CONNECTOR)
.7& VI/GY
•MQIJHTEQ ON BA~K OF AADIQ
.5 BR/BK
.5 BR/BK S400. ;:-11!::01-=-~-=--=:;-~-=--!!::0i!-J
!Ofl/o•Jl~~~ .. ~~~~-5~B•R•/B~K~~~~~3 y I CJOZ (ACCESSORY
- CONNECTOR)
1 BR
~~
HOT AT ALL TIMES HOT AT ALL TIMES
2.5 RD/Yl
.5 GY/RD
YL WT
1.5 BR 101
HOT AT ALL TIMES
r- ------, POWER 1 . FijSE 27 I iiiSriiisuTION
I 30AMP I ru!! I L ______ J 1.5 RD/BK
.75 GV/GN
[ID RIGHT FRONT TWEETER
.75 GN/Vll C406
~ r---------~~----------~~--~.--,LEFTREAR SPEAKER
13
.5WT
.75 GV/GN RIGHT
RADIO/ANTENNA 6500-1
WITH SOUND SYSTEM
r-----~----------~~~lEFT
£.!!!!!!!_
~
AMPLIFIER
r-----------~----------~~~~~-,~
FROM!<m ON FACING PAGE
REAR
ill8!illl.
6500-2 RADIO/POWER ANTENNA
!'RADIO ONLY! HOT IN ACCY, RUN OR START
.75 VI/WT
,..·.5
·V·I -· INSTRUMENT CLUSTER
X ~(ACCESSORY
.75 VI/GY
*MOUNTED ON BACK OF RADIO
WT
.75 YLIBR
CONNECTOR)
LH REAR SPEAKER
ANTENNA LEAD
325e
WT
WT
EXCEPT CONVERTIBLE
FROM S345 YL
RO
HOT AT ALL TIMES
2.5 RD/YL
LIGHT SWITCH DETAILS
1 RD/GN
g]J! -~~ FUSE
.75 RD/GN
z w 1 DETAILS
_______ .J. CJ02 (ACCESSORY CONNECTOR)
2.5 RD .75 GY/RD .75 RD/GN
E!.!! (i-!::011~-!!::011~ ... 8345
.75GY/R. ~-.75 GY/RD
1 2 ---------TO BOTTOM (LIGHT INPUT OF PAGE NOT USED)
YL
RH FRONT SPEAKER
.75 BU/BR
.75 .75 BU/BR 4
FROM FADER CONTROL BOTTOM
1 BR OF PAGE
IJ :::1
Y QJ!! (ACCESSORY CONNECTOR)
1 BR
6500A-O RADIO/ ANTENNA
CIRCUIT OPERATION With the Ignition Switch in ACCY, RUN or
START, Fuse 12 provides voltage to turn on the three components in the system. When the Radio Switch is on, voltage is applied to the Radio, the Power Antenna Raise/Lower Input, and the Amplifier. This voltage is used to control the individual unit's main power supply.
When the Raise/Lower Input of the Power Antenna receives voltage, power is supplied from Fuse 28 to run the motor and raise the Antenna. When voltage is no longer present at the Raise/Lower Input, the Antenna is lowered.
Fuse 21 constantly supplies voltage to the Memory Power Input of the Radio. This allows the Radio to maintain the present settings while it is turned off.
The Amplifier receives constant power at terminal 11 from Fuse 28. When the Radio is on, voltage is applied to terminal 13 to enable the Amplifier.
The actual Radio signal originates at the Antenna. It is supplied to the Radio, processed, and output from the Left Channel and Right Channel Outputs to the Fader Control. The Fader Control alters the front to rear volume by decreasing the resistance to the desired higher volume outputs. The signal is then input to the Left Front, Left Rear, Right Front, and Right Rear Inputs to the Amplifier. After amplification, the signal is output to the corresponding speakers.
TROUBLESHOOTING HINTS • Try the following checks before doing the Sys
tem Check.
1. Check power input to the Radio by observing if Instrument Cluster Indicators light.
2. Check power input to Antenna by observing the Cigar Lighter.
3. Check memory power to Radio by checking operation of the Glove Box Light.
4. Check power input to the Amplifier.
5. If Fader Control has no effect, but sound is heard from all speakers, replace the Fader Control.
6. Check that the Antenna is properly connected.
7. Before troubleshooting a suspect Speaker, check all connections to that Speaker.
8. If display shows "CODE" and Radio will not operate, the individual Anti-Theft Code must be entered. Refer to "Anti-Theft" instruction booklet.
9. Check Radio Fuse located on back of Radio.
10. Check Amplifier Fuse located on back of Amplifier.
• Go to System Check for a guide to normal operation.
• Go to System Diagnosis for diagnostic tests.
SYSTEM CHECK • Use the System Check Table as a guide to
normal operation.
• Refer to System Diagnosis for a list of symptoms and diagnostic steps.
SYSTEM CHECK TABLE ACTION NORMAL RESULT
With Ignition Antenna extends. Switch in RUN, turn Digital display Radio ON. lights.
Sound is emitted from all Speakers.
Operate Fader Sound volume varies Control. from front to rear.
• Refer to System Diagnosis when a result is not normal.
SYSTEM DIAGNOSIS • Do the tests listed for your symptom in the
Symptom Table below.
• Tests follow the Symptom Table.
SYMPTOM TABLE SYMPTOM FOR DIAGNOSIS
Radio does not work Do TestA (no display, no sound).
Digital display DoTestB lights, but there is no sound.
LH Speakers or RH DoTestC Speakers do not operate.
(Continued on next page)
RADIO/ANTENNA 6500A-1
(Continued from previous page) B: AMPLIFIER POWER TEST C: FADER SIGNAL TEST (TABLE 1)
Antenna does not Check ground wire Measure: VOLTAGE Measure: VOLTAGE extend or retract. for an open. Make At: AMPLIFIER CONNECTOR (Disconnected) At: FADER CONTROL CONNECTOR
sure ground G302 is Conditions: (Disconnected) clean and tight. • Ignition Switch: RUN Conditions: Check wire to Power Antenna for opens. If OK, replace Power Antenna.
An individual DoTestD Speaker does not operate.
Excessive noise Do TestE comes from all Speakers.
• Radio: ON
Measure Correct For Diagnosis Between Voltage
11 &Ground Battery See 1
11 &18 Battery See2
13&Ground Battery See3
11&10 Battery See4
• If all voltages are correct, go to Test C .
1. Check power supply wire for an open.
•Ignition Switch: RUN • Radi~: ON
Measure Correct For Diagnosis
Between Voltage
3&Ground Approxi-
See 1 mately 6 Volts
6&Ground Approxi-
See2 mately 6 Volts
• If both voltages are correct, check for AC voltage at Radio outputs with Radio
A: RADIO POWER TEST
Measure: VOLTAGE At: RADIO CONNECTOR C1 (Disconnected)
or CONNECTOR C215 (Disconnected) Condition:
• Ignition Switch: RUN
Measure Correct For Diagnosis Between Voltage
2. Check Amplifier ground to Amplifier for an open to ground. Make sure ground G200 is clean and tight.
3. Check Amplifier "Radio On" wire for an open.
4. Check wire from terminal10 for an open to ground. Make sure ground G302 is clean and tight.
tuned to a strong signal. If AC voltage is present, go to Table 2. Remove Radio for service if AC voltage is not present.
1. Check wire from Left Channel on Radio for an open. If wire is good, remove Radio for service.
2. Check wire from Right Channel on Radio for an open. If wire is good, remove Radio for service.
Cl/2& Battery See 1 Ground
Cl/2 &Cl/1 Battery See2
C215/2 & Battery See3 Ground • If all voltages are correct, check wire from
connector C215 to Radio for an open. If wire is OK, remove Radio for service.
1. Check power input wire for an open.
2. Check ground wire for an open to ground. Make sure ground G200 is clean and tight.
3. Check memory power supply wire for an (Continued on next page) open.
6500A-2 RADIO/ANTENNA
(Continued from previous page)
C: FADER SIGNAL TEST (TABLE 2)
Measure: VOLTAGE At: AMPLIFIER CONNECTOR (Disconnected) Conditions:
• Ignition Switch: RUN • Radio: ON
Measure Correct For Diagnosis Between Voltage
14 &Ground Approxi-
See 1 mately 6 Volts
15&Ground Approxi-
See2 mately 6 Volts
19&Ground Approxi-
See3 mately 6 Volts
20&Ground Approxi-
See4 mately 6 Volts
• If all voltages are correct but sound was not present, remove Amplifier for service.
1. Check between pin 2 (Fader) to pin 14 (Amplifier) for an open in the wiring. If wire is OK, replace Fader Control.
2. Check between pin 4 (Fader) to pin 15 (Amplifier) for an open in the wiring. If wire is OK, replace Fader Control.
3. Check between pin 5 (Fader) to pin 19 (Amplifier) for an open in the wiring. If wire is OK, replace Fader Control.
4. Check between pin 7 (Fader) to pin 20 (Amplifier) for an open in the wiring. If wire is OK, replace Fader Control.
D: SUSPECT SPEAKER TEST
Connect: OHMMETER At: SUSPECT SPEAKER (Disconnected) Condition:
• Ohmmeter set on Rx 1 scale or Diode Check Scale
Action Correct Result For Diagnosis
Connect Ohmmeter Speaker
across See 1 Speaker
"pops"
Terminals
• If the result is correct, check wires to the Amplifier for opens or shorts. If wires are OK, check the related wire between Fader and Amplifier.
1. Replace the suspect Speaker.
E: NOISE DIAGNOSIS With Radio on and noise present, unplug the Antenna at the back of the Radio.
• If noise is no longer present, it was being picked up by the Antenna. Perform Antenna Noise Test.
• If noise persists, it is coming in the Radio wiring. Refer to the following Noise Symptom Table.
ANTENNA NOISE TEST Measure: RESISTANCE At: ANTENNA
Measure Correct For Diagnosis Between Resistance
Antenna Plug Less than 3 Base& Ohms
See 1 Ground
Antenna Plug Greater than 1
Tip& Megaohm See2 Antenna Plug (open circuit)
Base
• If both resistances are correct, check the hood ground strap. If hood ground strap is OK, substitute a different Antenna at Radio. If the new Antenna is good, replace Antenna. If noise is still present, refer to Noise Symptom Table.
1. Check ground contact at Antenna base. If necessary, install a braided ground strap from the Antenna Base to Chassis ground. Check for an open in the Antenna Cable.
2. Check for a short to ground at the Antenna or Antenna cable.
RADIO/ANTENNA 6500A-3
NOISE SYMPTOM TABLE SYMPTOM POSSIBLE CAUSE REPAIR ACTION
Harsh popping or crackling noise present when Ignition Noise • Check for proper distributor cap shielding. ignition on-changes with engine rpm. • Check shielding ground strap. If not present,
install. • Check for defective spark plug or spark plug
wire. • Reroute spark plug wires laying against any-
thing that could be transmitting noise to the Radio (wiring or sensor leads traveling into the passenger compartment).
• Check engine/firewall ground strap and engine hood/body ground strap.
• Check if engine hood is closing properly . • Connect dedicated ground strap to Radio . • Replace distributor cap and rotor .
High whine or howling that changes with engine Alternator noise • Connect dedicated ground strap to Radio. rpm. • Run a direct wire from Battery to Alternator .
AM only is weak and noisy. AM alignment • Remove Radio for service.
FM only is weak and noisy. FM alignment • Remove Radio for service.
6571-0 CRUISE CONTROL
HOT IN ACCY RUN OR START
r-r---"l'l!' .. , POWER i $ t~!;r I =-=~~""s;:...:.R:.:..:I B:.::Uc.:..;TI""'O.:.;N
l .. .. .:..:.:..:.. .. ..: g SEE FUSE DETAILS
i't .5 VI/WT~4 GN/WT
r~I!!':·S241 C210
FUSE DETAILS
.5 VI/WT
.5 AD .5 YL
"' ..•.. -_ ... -•. ·.· .. _ ... · ..• · •...... -.. ···.·_ .. -•..•.. · .. -•.•. ·.········-······ .. ·.·.·.· .•. · .. ·."".• ...• -•. ·· ..•. -.··.·_·]··-· ..•. · INSTRUMENT
I _!~!_0_2~~_!.'!. .· •. CLUSTER •1. r So~to STATE l- .. --.· I SPEED OUTPUT J
I i·~•,r--••-
L .• --~"'------1-., C6
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.5 GN .5 OK
CRUISE CONTROL CONTROL UNIT
.5 BU
HOT IN RUN OR START ,.. .. ,..., .. ..,, POWER r-
i I
FUSE 19 I DiSTRii!UTION MI\MP I BOX
FUSE ~ . .. . ' .;..-"-----.J
DETAILS~~ AUTOMATIC TRANSMISSION
.75 GN/WT
t ClOt
15GNff]-............... ,.. .......... , AUTOMATIC
I I TRANSMISSION l ! RANGE SWITCH
I I I I I I I I ~-------- -----~~
1362-5 2.5i PAGE 1360-8
.5 OR r----i~----~------------------------~-.----------f-----------~-,CRUISE .5 GN/RD
.5 BR 3 C209 .. __ s;d-
.5BR1 TO THROTTlE
VAlVE
.SWT
• ~·~ ================================:J STDP .5 GN/RD •. !!:501G•N~/R~D(tl ==-5=W=T=f Cl42
LIGHTS S224 C209 .5 OR
.._ G200
CONTROL ACTUATOR
.75 BR
6581-0 ON-BOARD COMPUTER
MULTifUNCTION CLOCK HOT AT ALL TIMES HOT IN ACCY RUN OR START HOT AT ALL TIMES
.--1 I L
--.. ---,POWER E.!!§UJ : iii8Tiilsur1 oN
I BOX .-1 ______ _, 1.5AMP
r- ------1 POWER I FUSE·~ I DISTRIBUTION
L
l 7.0MP I BOX
:------.J
1 RD/GN
.5 RD/GN
(NOT USED)
~ I
------lL --------------------------------------------------------------------~-·------------------J 20r~
.5 BR
-!:llll2
.5 RDIWT
.5 GN!VI
.5 GY/RD 2
.5 BRIWT ) l
.5 BR/RD ~ ""'(
.5 BR e
.5 GN!VI .5 RD/WT
.5 BR
.5 GY/RD
.5 BR/WT
.5 BAIRD
. 5 BR
.5 BU
ON-BOARD COMPUTER 6581-1
MULTIFUNCTION CLOCK
DISPlAY SELECT SWITCH
MULTIFUNCTION CLOCK
2
1C260
1 BU 2
.5 BR{BU .5 BR/YL
• OUTSIDE Htc .. ·. TEMPERATURE
SENSOR 2 -------- -------- ~
1 I u . n . .. .. ao .IMODULE
1 BR I I 1 c2so L.:.._.,. _____ .. ...,cJ!~!P..:..;. _____ .;.._J
- 4 ~
.5 BR
.5 BR
NOll:: SEE PAGE 6131'0 FOR REMAINING CHIME MODULE WfRINO •
6581-2 ON-BOARD COMPUTER
HOT IN RUN OR START HOT IN ACCY, RUN OR START
.5 GN/BK .5 GY/VI .5 BR/RD .5WT/BU
5 21 "'":I DASH LIGHTS ~ l .5 WT .5 WT/Yl I
32 11
ri. ":"":"'""""""":".":" ...... ""\"" ... "" '"MOTRONIC
) .•. ~R .. , .... ~.~,EfjU···.·~. ~LMT,e~~.T .... PU···F··. ' ... ···.· .•. 1£.!!!!!!!!!! :' .··:'' .· · ... · .·. · ·. · · . · •·· ..... I UNIT 1: > •... · .. ':·· ...• ·•·•·•·•.••·.·.·•· •.•.•. ·.····-
~--~-------------~ 15 171
.5 BR/GY
~CONVERTIBLE
18
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1 INPUT · . . fUEl RAtE ··· · ... ·.·.. ·. fO~HIINK l~VEl fUEJTAH. ~· I COMPUTER ,<INPUT INPUT LOYHEVH I MODULE I . ~ .---
• ·. . . . . .. . . I l-------------------------------·-----· .................................................................. · .................................................. ;;.._ .... _.J!2 ... ;;.. ............................................. J 14 I .5BK ~
r .. ,.. ....... ~ .... ::·.·'···.·.··.-.· ... --.. ·•.·· .. • ....... 1 COMBINATION
.5 YL
{NOT USEO)
~ 11 : ~ SWITCH
.. ____________ J
= GROUND DISTRIBUTION
~ G200
.5 BR/WT
DASH LIGHTS
FUSE DETAILS
............ ., POWER
I DiSiiiioUTION
I!!!! I
---~--..;.-.:.J
1.5 RO/BK
1.5 RO/BK ·----E· S234
.75 RD/BKl
(NOT USED) 2 1
H ,..~(ACCESSORY CONNECTOR)
1.5 R D/BK (11.5 R D/BK S42Q~-----=-j·RADIO
.5 BR/GN
(NOT USED)
.75 BR
1.5 RD/BK
.5 RD!WT
[!] 
6581-4 ON -BOARD COMPUTER 325i
.. ,..-.. ,..~J POWER
~$ A~t )I ~UTI ON
_____ ,.,J
FUSE DETAILS
1.5 RO/BK ........ -=:;-~11!!!. S234
.75 RO/BKl
.5 BR/GN
(NOT USED) 2 1
(NOT USED)
.75 BR
H 'It'~ (ACCESSORY CONNECTOR)
1.5 RO/BK ~ 1.5 RO/BK ~·~RADIO
1.5 RD/BKft ;I. ill?
.5 RO/WT
.5 RD/WT
.5 BR/VL
.5 RO/WT
"'·".if-f!ii!Mfj
[.-..• •··.·· ... ·•• .. • •..• -.·.··· .•. ··.• ....•. -.· .. ··· .. · .. · •. • •• · •. -.·.· .•. •.•.· .... -•.. ··•·• ..• ~.· ..•••.. • •.•..••.• ~-.... ·.· •. ·.""-••.. • .. ·• .•. · • .............. ·.·.· ... ·· ... -.·.··· .. ·•·.• •. ~·· •.. ·.·• .. ·.•... !!!!lli!.!!!! START····~I'F ~
RUN~16 _.-A~CV ---- ------2.5 GN
2 czoo
2.5GN,-
FUSE Ell•--... DETAILS
.75 Gz:Ilill>
.75 GN
zl£.lli .75 GN
1 £ill.
.75 BR
--~N~;~s1'; 41. ·g .75 GN/RD
z lillt .5 BR/VL .5 BR/BU
1 11
~--.. !~~~~~~ r~.U,T:.'--Tli>";,T.jl L-----------
.75 GN/RO
2 ill! .5 GN
27
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1 UNIT
I ~-L-----------•
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1m
;-·~--~~ ...
1 RO/GN
i![.)iilfih;l1 FROM IGNITION SWITCH PAGES 1240·0 AND 1240·1
v .5 BK/VL
.5 BR
.5sRJ 21C260
5 BR .5 BR SZ02 ..................... ~.--...... .58Rl
1 !a
CIJ!~~~:~~]-~NL_sur_s~-~-MR ENT
16lf! .5 BR~!WJ.!!
7000-0 COMPONENT LOCATION VIEWS
Figure 1 - LH Rear of Engine Compartment
Figure 2- LH Rear of Engine Compartment , .. 9'
Figure 3- Lower LH Rear of Engine
~ ...... , .. - •. • r• . ., . .....
Figure 4- Top LH Side of Engine
Figure 5- Forward of LH Front Shock Tower (Relay Cover Removed)
Figure 6- Forward of LH Front Shock Tower
Figure 1 -Forward of LH Front Wheel Well
Figure 2 - LH Front of Engine Compartment (Cover Removed)
Figure 3- Lower LH Side of Engine
DIAGNOSTIC CONNECTOR
Figure 4 - Top LH Front of Engine
COMPONENT LOCATION VIEWS 7000-1
COOLANT TEMPERATURE 1
SWITCH (45° Cl
•
Figure 5- Top Front of Engine
Figure 6- Top Front of Engine
7000-2 COMPONENT LOCATION VIEWS
Figure 1 -Top LH Side Of Radiator Figure 3- Lower RH Front of Engine
6'1\:!40
Figure 2- Lower Front of Engine Figure 4- Lower RH Front of Engine
Figure 5- Behind RH Headlights (Cover Removed)
Figure 6- RH Side Of Engine Compartment
Figure 1 - RH Side of Engine Compartment
Figure 2 - RH Rear Side of Engine
COMPONENT LOCATION VIEWS 7000-3
Figure 3- RH Rear of Engine Compartment
Figure 4 - RH Side of Engine Bulkhead
Figure 5 - LH Front Brake Assembly (Wheel Removed)
Figure 6- LH Front Spindle Assembly
7000-4 COMPONENT LOCATION VIEWS
Figure 1 - Under LH Side of Front Bumper (Splash Guard Pulled Down)
Figure 2- Under Middle of Front Bumper
C141
Figure 3- Under RH Side of Car
Figure 4- RH Rear of Differential
Figure 5 - Ahead of LH Rear Wheel
Figure 6 - Inside LH Front Door (Panel Removed)
. l®a\J, Figure 1 - Behind LH Front Speaker
Figure 2- Under LH Side of Dash
Figure 3- Under LH Side of Dash
Figure 4 - Under LH Side of Dash
COMPONENT LOCATION VIEWS 7000-5
Figure 5 - Under LH Side of Dash
Figure 6 - Under LH Side of Dash
7000-6 COMPONENT LOCATION VIEWS
I ...
'~ Ghl5111 ~·
Figure 1 - Under LH Side of Dash Figure 3- Under LH Side of Dash Figure 5- Center of Dash
Figure 2- Under LH Side of Dash Figure 4 - Top of Steering Column Figure 6- Center of Windshield Header
Figure 1 -Center Console
Figure 2 - Rear of Center Console
COMPONENT LOCATION VIEWS 7000-7
Figure 3- Behind RH Side of Center Console
Figure 4- Under RH Side of Dash
~CRUISE r;::;
CONTROL CONTROL UNIT
MOTRONIC CONTROL UNIT
Figure 5- Under RH Side of Dash
AUTO·CHARG I NG FLASHLIGHT CONNECTOR
Figure 6- Inside Glove Box
7000-8 COMPONENT LOCATION VIEWS
Figure 1 - Under LH Side Of Rear Seat Figure 3- LH Front Of Trunk Figure 5 - Middle Rear Of Trunk
BATTERY
Figure 2 - Under RH Side of Rear Seat Figure 4- LH Front Of Trunk Figure 6 - RH Rear Of Trunk
Figure 1 -Top LH End Of Radiator (2.5i Engine)
Figure 2- LH Front of 2.5i Engine
COMPONENT LOCATION VIEWS 7000-9
Figure 3- Lower RH Front Of 2.5i Engine
Figure 4 - RH Front Of 2.5i Engine (Cover Removed)
Figure 5 - LH Side Of 2.5i Engine
Figure 6- Lower RH Rear Of 2.5i Engine Compartment
7000-10 COMPONENT LOCATION VIEWS
Figure 1- RH Front Shock Tower (2.5i Engine, Non Convertible)
Figure 2 - RH Rear Of Engine Compartment (convertible)
Figure 3- Under RH Side Of Dash (2.5i Engine)
Figure 4- Center Of Windshield Header (convertible)
Figure 5- Under LH Side Of Rear Seat (convertible)
Figure 6 - Behind Center Of Rear Seat (convertible)
Figure 1 - LH Rear Of Passenger Compartment (convertible)
Figure 2- LH Side Of Soft Top Stowage Compartment
Figure 3 - RH Side Of Soft Top Stowage Compartment
Figure 4 - LH Front Corner Of Trunk (convertible)
COMPONENT LOCATION VIEWS 7000-11
Figure 5- Under LH Side Of Dash
Figure 6- Under LH Side Of Front Bumper (Splash Guard Pulled Down)
8000-0 SPLICE LOCATION VIEWS INDEX
This index contains all the splices in the car, what harness each one is in, and the page that the splices appear on. The drawings after the index show how the harness is routed through the car and where the splices are located on the harness.
SPLICE HARNESS PAGE SPLICE HARNESS PAGE NUMBER NUMBER
S100 MAIN 8000-2 S210 MAIN 8000-2 S100 MAIN (CONV.) 8000-3 S210 MAIN (CONV.) 8000-3 S102 MAIN 8000-2 S211 MAIN 8000-2 S102 MAIN (CONV.) 8000-3 S211 MAIN (CONV.) 8000-3 S103 MAIN 8000-2 S212 MAIN 8000-2 S103 MAIN (CONV.) 8000-3 S212 MAIN (CONV.) 8000-3 S104 ENGINE (2. 7e) 8000-4 S213 MAIN 8000-2 S104 ENGINE (2.5i) 8000-5 S213 MAIN (CONV.) 8000-3 S105 ENGINE (2. 7e) 8000-4 S214 ENGINE (2. 7e) 8000-4 S105 ENGINE (2. 5i) 8000-5 S215 MAIN 8000-2 S106 ENGINE (2. 7e) 8000-4 S215 MAIN (CONV.) 8000-3 S106 ENGINE (2. 5i) 8000-5 S216 ENGINE (2. 7e) 8000-4 S107 ENGINE (2. 7e) 8000-4 S217 ENGINE (2. 7e) 8000-4 S107 ENGINE (2.5i) 8000-5 S219 INSTRUMENT S108 ENGINE (2. 7e) 8000-4 PANEL 8000-7 S109 ENGINE (2.5i) 8000-5 S221 INSTRUMENT s 111 ENGINE (2.5i) 8000-5 PANEL 8000-7 S112 ENGINE (2. 7e) 8000-4 S224 MULTI S112 ENGINE (2.5i) 8000-5 FUNCTION NOT S114 MAIN 8000-2 CLOCK SHOWN S114 MAIN (CONV.) 8000-3 S225 MULTI S115 MAIN 8000-2 FUNCTION NOT S115 MAIN (CONV.) 8000-3 CLOCK SHOWN s 116 MAIN 8000-2 S228 CRUISE NOT S116 MAIN (CONV.) 8000-3 CONTROL SHOWN S118 MAIN 8000-2 S229 AIR NOT S118 MAIN (CONV.) 8000-3 CONDITIONING SHOWN S119 MAIN 8000-2 S230 MAIN 8000-2 S119 MAIN (CONV.) 8000-3 S230 MAIN (CONV.) 8000-3 S201 ON-BOARD S231 MAIN 8000-2
COMPUTER 8000-8 S231 MAIN (CONV.) 8000-3 S202 ON-BOARD S232 MAIN 8000-2
COMPUTER 8000-8 S232 MAIN (CONV.) 8000-3 S207 MAIN 8000-2 S233 MAIN 8000-2 S207 MAIN (CONV.) 8000-3 S233 MAIN (CONV.) 8000-3 S209 MAIN 8000-2 S234 MAIN 8000-2 S209 MAIN (CONV.) 8000-3
SPLICE LOCATION VIEWS 8000-1
INDEX
SPLICE HARNESS PAGE SPLICE HARNESS PAGE NUMBER NUMBER
S234 MAIN (CONV.) 8000-3 S346 MAIN (CONV.) 8000-3 S300 DOOR 8000-6 S400 RADIO NOT S301 DOOR 8000-6 SHOWN S302 DOOR 8000-6 S402 DOOR 8000-6 S303 DOOR 8000-6 S403 RADIO NOT S305 DOOR 8000-6 SHOWN S306 INSTRUMENT S404 RADIO NOT
PANEL 8000-7 SHOWN S307 INSTRUMENT S411 DOOR 8000-6
PANEL 8000-7 S501 DOOR 8000-6 S308 DOOR 8000-6 S502 DOOR 8000-6 S309 DOOR 8000-6 S503 DOOR 8000-6 S310 MAIN 8000-2 S504 DOOR 8000-6 S310 MAIN (CONV.) 8000-3 S700 ENGINE (2.5i) 8000-5 S312 MAIN (CONV.) 8000-3 S701 ENGINE (2.5i) 8000-5 S313 MAIN (CONV.) 8000-3 S702 ENGINE (2.5i) 8000-5 S316 MAIN 8000-2 S703 ENGINE (2. 5i) 8000-5 S316 MAIN (CONV.) 8000-3 S319 MAIN 8000-2 S319 MAIN (CONV.) 8000-3 S322 DOOR 8000-6 S323 DOOR 8000-6 S324 MAIN 8000-2 S324 MAIN (CONV.) 8000-3 S326 MAIN 8000-2 S326 MAIN (CONV.) 8000-3 S327 MAIN (CONV.) 8000-3 S329 MAIN 8000-2 S329 MAIN (CONV.) 8000-3 S330 MAIN 8000-2 5330 MAIN (CONV.) 8000-3 S332 DOOR 8000-6 S333 DOOR 8000-6 S340 MAIN 8000-2 5340 MAIN (CONV.) 8000-3 S341 MAIN 8000-2 S341 MAIN (CONV.) 8000-3 S342 DOOR 8000-6 S345 RADIO NOT
SHOWN
8000-2 SPLICE LOCATION VIEWS EXCEPT CONVERTIBLE
MAIN HARNESS SPLICE LOCATIONS
TO ENGINE COMPARTMENT
TO CLUSTER AREA
TO REAR S232
S102
OF CAR
POWER S230 DISTRIBUTION S340 BOX
S233 S211 S310 S209 S212 S316 S319 S210 S207 S215
TO STEERING COLUMN AREA
G300 S326
CONVERTIBLE SPLICE LOCATION VIEWS 8000-3
TO CLUSTER AREA
TO ENGINE COMPARTMIENT
S102 S116 S115 S232 S119 S230 S231 S340 S234
S233 S209 S319 S207
TO REAR OF CAR
S211 S212 S210 S215
MAIN HARNESS SPLICE LOCATIONS
TO STEERING COLUMN AREA
S326
S330 8329 S327
S324
8000-4 SPLICE LOCATION VIEWS 2.7e ENGINE ENGINE HARNESS SPLICE LOCATIONS
ENGINE
S703 S111 S701
S104 C101
2.5i ENGINE :SPLICE LOCATION VIEWS 8000-5
ENGINE HARNESS SPLICE LOCATIONS
8000-6 SPLICE LOCATION VIEWS
DOOR HARNESS SPLICE LOCATIONS
RIGHT FRONT DOOR
WINDOW MOTOR
LEFT FRONT DOOR
r------C405
SS02
(4 DOOR ONLY)
SPLICE LOCATION VIEWS 8000-7 INSTRUMENT PANEL HARNESS SPLICE LOCATION
C103 8306 8307
8221
219
8000-8 SPLICE LOCATION VIEWS
ON-BOARD COMPUTER HARNESS SPLICE LOCATIONS
ONBOARD
'-------COMPUTER
c:JJWW t::JJ (QJO
\::::=:=====:=: l I
og===g 8201
8202
8500-0 CONNECTOR VIEWS 2.7e ENGINE
WIRE WIRE PIN SIZE COLOR CIRCUIT AND COMPONENT CONNECTED
1 1.5 BR Ground Distribution, G103
4 .5 BRIVI Gauges/Warning Indicators, Coolant Temperature Sender
6 .75 GY/BU Not Used
7 .75 WT/BU Service Interval Indicator, Service Interval Processor (Reset)
8 .5 YL Ignition, TDC Sensor.
9 SHIELD Ignition, TDC Sensor.
10 .5 BK Ignition, TDC Sensor.
11 2.5 BK/YL Start, Start Signal. (50)
12 .75 BU Charge System, Alternator (D+)
13 1 GN Ignition, Ignition Coil
14 2.5 RD Charge System, Alternator (30)
DIAGNOSTIC CONNECTOR FACE 15 1.5 GN/YL Idle Speed Control, Idle Speed Control Unit.
2.5i ENGINE CONNECTOR VIEWS 8500-1
Pin Wire Wire
Circuit and Component Connected Size Color
1 1 BK Ignition Coil, Motronic Control Unit
6 .5 WT/BK SRS Connector (Not Used)
7 .75 WT/GN Service Interval Indicator, Service Interval Processor (Reset)
11 2.5 BK/YL Starter, Start Signal (50)
12 .75 BU Charge, Alternator (D +)
14 2.5 RD Battery(+)
15 .5 WT/YL Motronic Control Unit (RXD)
16 1.5 GN/WT Oxygen Sensor
18 1.5 GN/BU Motronic Control Unit (Programming Voltage)
19 1.5 BR Ground Distribution (G103)
20 .5 WTNI Motronic Control Unit (TXD) DIAGNOSTIC CONNECTOR FACE
8500-2 CONNECTOR VIEWS
Figure 1-C302 (Accessory Connector) Front View-Under LH Side
of Dash Ahead of Pedal Assembly
CIRCUITS USING C302 (ACCESSORY CONNECTOR)
TERMINAL CIRCUIT TERMINAL CIRCUIT
A Not Used N Not Used B Not Used 0 Not Used c Anti-Lock Braking p Not Used D Central Locking Q Power Windows & E Not Used Sunroof F Not Used R Cruise Control G Anti-Lock Braking s Anti-Lock Braking H On-Board Computer T Not Used I Not Used u Not Used J Not Used v Radio K Not Used w Radio L Not Used X Radio M Not Used y Radio
z Power Antenna
8350002
Mating Face
ABS CONTROL UNIT
14 26
-a-o-ofro-a-oocro-o-oo DDDDDDODODODO ------------------------1
Wiring Face
ACTIVE CHECK CONTROl
5 1
IIIII I
Mating Face AIR FlOW METER
6
4 Wiring Face
9
7
13
AUTOMATIC TRANSMISSION RANGE SWITCH
1 2
3
Wiring Face BAROMETRIC PRESSURE SENSOR
14 8
00000 0000000 1 7
Wiring Face CENTRAl lOCKING CONTROl UNIT
1 4
l(o o o o jl Wiring Face
CHIME MODULE (C1)
CONNECTOR VIEWS 8500-3
1
Mating Face
COOLANT TEMPERATURE
SWITCH
13
l)pD 0 0 0 0 0 0 0 0 0 0 0 fl I [][] 0 0 0 D D 0 0 0 0 0 0 ~ 14 Wiring Face
CRUISE CONTROl
26
Mating Face
CYLINDER IDENTIFICATION
SENSOR
(2.5i ENGINE)
7 6
1 4 Wiring Face
DIAGNOSTIC CONNECTOR
(2.7e ENGINE)
8500-4 CONNECTOR VIEWS
Wiring Face
ENGINE SPEED SENSOR
(2.7e ENGINE)
Mating Face
FADER CONTROL
31
49A
Wiring Face FLASHER
1
49
Wiring Face
FRONT HEADLIGHTS
Wiring Face
FRONT TURN/PARK LIGHT
87
85
30 Wiring Face
FUEL PUMP RELAY
3 2 1
l(en515jl Wiring Face
FUEL TANK SENDER
86
1 6
~D9'oo) Wiring Face
GAS FILLER LOCK MOTOR
3
r@) 2 1
Wiring Face OXYGEN SENSOR
Wiring Face HIGH LEVEL STOP LIGHT
14
2~~--615
'--1--1~_?_?_2 1 3 5 7 9 11
Wiring Face
IDLE AIR CONTROL
26
DO 000 D DODD ODD [](] [][](] (] (][][][) [](][]
1 Wiring Face
INSTRUMENT CLUSTER (C2)
31
TK A T6
1 Wiring Face
30S
INTERIOR LIGHT TIMER CONTROL
85 87A......,...---+---.
87
86 Wiring Face
MAIN RELAY
30
13
CONNECTOR VIEWS 8500-5
14
~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~9~~~ ~~~~~~~~~~~~~~~~~~
2 6
00""
00 00 3 4 5 1 Mating Face
MIRROR CONTROL SWITCH
Mating Face
MOTRONIC CONTROL UNIT (2.5i ENGINE)
87
85
30 Wiring Face
86
OXYGENSENSORHEATERRELAY
Mating Face
MOTRONIC CONTROL UNIT (2.7e ENGINE)
26
4 8
Wiring Face DO ODODODDDDOD DOD DO 0 DODD DOD
POWER WINDOW SWITCHES
2 13
Wiring Face ON-BOARD COMPUTER MODULE
8500-6 CONNECTOR VIEWS
3 4 1 2f'T ¥15 6
DO DODD Wiring Face
REAR LIGHT ASSEMBLY
1 4 ------DDDCl DClClCl
5 8 Wiring Face
REAR LIGHTS CHECK RELAY
~~ Mating Face
REAR WINDOW
BLOWER
1 2 3 ~c::i?~ 4 5 6
{}c::i?{} 7
8 9
~o~ Mating Face
REAR WINDOW BLOWER RELAY
1 2
3
Wiring Face REFERENCE POINT SENSOR
31
s
15 Wiring Face
L
SEAT BELT WARNING TIMER
D 1
D 2
D 3
Wiring Face SUNROOF MOTOR (CI)
3 Wiring Face
SUNROOF SWITCH
4
Wiring Face THROTTLE SWITCH
2 00 1
4 00 3
6 00 5
Wiring Face WIPER MOTOR
Wiring Face C101
CONNECTOR VIEWS 8500-7
8500-8 CONNECTOR VIEWS
1 2 3 4
IL:oooo;l Wiring Face
Q1Q
6060003.03
Mating Face
C242
1 2 3
fo:§:o] Wiring Face
~
1
2 8
5
6
7
Wiring Face
C405
3
4 15 19
20 17 21
9000-0 COMPONENT LOCATION CHART
COMPONENTS A/C In-Line Diode ......... . A/C In-Line Fuse .......... . ABS Electronic Control Unit .. . ABS Hydraulic Unit ........ . Active Check Control Unit
(Convertible) ............ . Active Check Control Unit (Non-
Convertible) ............ . Air Flow Meter ........... . Amplifier (Convertible) ...... . Amplifier (Non-Convertible) ... . Auto-Charging Flashlight .... . Automatic Transmission Range
Switch ................ . Auxiliary Fan ............. . Auxiliary Fan Normal Speed
Blower Resistor .......... . Auxiliary Fuel Pump ........ . Auxiliary Fuse ............ . B/C Horn Diode ........... . Backup Light Switch ....... . Barometric Pressure Sensor .. . Battery (Convertible) ....... . Battery (Non-Convertible) .... . Battery Junction Block
(Convertible) ............ . Battery Junction Block (Non-
Convertible) ............ . Blower Motor ............ . Blower Resistors .......... . Board Computer Horn ...... . Brake Fluid Level Switch ..... . Brake Switch ............ . Brake Wear Sensors ........ . Central Locking Control Unit .. . Chime Module ............ . Clutch Switch ............ . Cold Start Valve .......... . Combination Switch ....... . Compressor Clutch ........ . Compressor Clutch Diode .... . Compressor Enable Switch ... . Convertible Top Position Switch
Behind LH side of dash, right of steering .column .. . LH side of evaporator housing .............. . Under LH side of dash, above hood release ...... . In front of LH front wheel well .............. .
Above rear view mirror ................... .
Above rear view mirror ................... . Behind air cleaner ....................... . LH front corner of trunk ................... . In trunk, above LH wheel well .............. . In glove box ........................... .
At base of shift lever ..................... . In front of radiator ...................... .
Front RH side of auxiliary fan ............... . In fuel tank ........................... . On top of LH front shock tower ............. . Above LH horn, behind splash guard .......... . On transmission Mounted on air intake housing .............. . RH rear corner of engine compartment ......... . In RH rear of trunk ...................... .
At battery positive terminal ................ .
Engine compartment at RH bulkhead .......... . Behind cowl Behind cowl, inside blower housing Above LH horn, behind splash guard .......... . Left of engine, on brake fluid reservoir ......... . On brake pedal support, above brake pedal. ..... . On LH front and RH rear brake calipers ........ . Below and behind LH front speaker ........... . Mounted on LH dash hush panel ............. . Above clutch pedal Top RH side of intake manifold .............. . Upper LH side of steering column Lower RH front of engine, on compressor ....... . Lower RH front of engine, on compressor ....... . Behind A/C face plate LH side of soft top stowage compartment ...... .
Page-Figure
7000- 6-2 7000- 6-2 7000- 5-2 7000- 1-2
7000-10-4
7000- 6-6 7000- 0-6 7000-11-4 7000- 8-4 7000- 7-6
7000- 7-1 7000- 4-2
7000- 4-2 7000- 8-2 7000- 0-1 7000-11-6
7000- 1-5 7000-10-2 7000- 8-6
7000-10-2
7000- 3-4
7000-11-6 7000- 0-2 7000- 5-5 7000- 3-5 7000- 5-1 7000- 5-6
7000- 3-2
7000- 2-3 7000- 2-3
7000-11-2
COMPONENT LOCATION CHART 9000-1
COMPONENTS Coolant Level Switch ....... . Coolant Temperature Sender .. . Coolant Temperature Sensor .. . Coolant Temperature Switch .. . Cruise Control Actuator ..... . Cruise Control Switch ...... . Cruise Control Unit (2. 5i Engine) Cruise Control Unit (2. 7e Engine) •••••• 0 •••••••••••••••
Cylinder Identification Sensor .. Diagnostic Connector (2. 5i
Engine) ............... . Diagnostic Connector (2. 7e
Engine) ............... . Door Lock Motors ......... . Driver Exterior Door Handle
Switch ................ . Dual Coolant Temperature
On RH front wheel well, in coolant reservoir ..... . Front of engine, top of thermostat housing ...... . Front of engine, top of thermostat housing ...... . Front of engine, top of thermostat housing ...... . Forward of LH front shock tower ............ . On RH side of steering column Mounted under RH side of dash
Mounted under RH side of dash On ignition wire, at distributor .............. .
Top LH front of engine
Top LH front of engine Rear part of each door
In rear of LH front door
0 0 0 0 0 0 0 0 I 0 I 0 0 0 0 0 0 0 0 0
Switch. . . . . . . . . . . . . . . . . Top LH side of radiator ................... . Engine Speed Sensor. . . . . . . . Lower LH side of transmission bell housing ...... . Engine Speed Sensor (2. 5i
Engine) . . . . . . . . . . . . . . . . Lower RH front of engine .................. . Evaporative Purge Valve. . . . . . Below LH side of throttle body .............. . Evaporator Temperature
Regulator . . . . . . . . . . . . . . . Behind front of console, near evaporator ....... . Evaporator Temperature Sensor. On LH side of evaporator housing ............ . Evaporator Temperature Switch. LH side of evaporator housing .............. . Flasher. . . . . . . . . . . . . . . . . . Upper part of steering column .............. . Fresh/Recirculating Air Flap Door
Motors. . . . . . . . . . . . . . . . . Behind A/C face plate .................... . Fresh/Recirculating Air Relays . . Behind A/C face plate Fuel Injectors . . . . . . . . . . . . . Below intake manifold, at each port ........... . Fuel Pump Relay . . . . . . . . . . . On bracket, in front of LH front shock tower ..... . Fuel Tank Sender. . . . . . . . . . . Top of fuel tank ........................ . Gas Filler Lock Motor. . . . . . . . In trunk, behind RH wheel well .............. . Hazard Switch . . . . . . . . . . . . In center console, above radio .............. . High Pressure Cut-Out Switch. . On receiver dryer, behind RH headlight ........ . High Speed Coolant Temperature
Switch. . . . . . . . . . . . . . . . . Top LH side of radiator ................... . Horn Brush/Slip Ring . . . . . . . . In upper steering column .................. . Horns . . . . . . . . . . . . . . . . . . Near fog lights, behind splash guard .......... . Hot Water Cut-Off Switch . . . . Behind A/C face plate .................... . Idle Control Valve . . . . . . . . . . Top RH rear side of engine .....•........ , .•.
Page-Figure 7000- 3-3 7000- 1-6 7000- 1-6 7000- 1-5 7000- 1-1
7000-10-3
7000- 7-5 7000- 9-4
7000- 9-2
7000- 1-4
7000- 9-1 7000- 0-3
7000- 9-3 7000- 9-5
7000-11-5 7000-11-5 7000- 6-3 7000- 6-4
7000- 7-3
7000- 1-6 7000- 0-5 7000- 8-2 7000- 8-6 7000- 6-5 7000- 2-5
7000- 2-1 7000- 6-4 7000- 4-1 7000-11-5 7000- 3-2
9000-2 COMPONENT LOCATION CHART
COMPONENTS Idle Speed Actuator. . . . . . . . . LH top of engine ........................ . Idle Speed Control Unit. . . . . . . RH side of dash, above glove box ............ . Ignition Coil . . . . . . . . . . . . . . On RH front wheel well .............. ; .... . Ignition Key Switch . . . . . . . . . Part of ignition switch, in upper part of steering
column Ignition Switch . . . . . . . . . . . . Upper part of steering column Interior Light Timer Control . . . . Below LH front speaker ................... . Low Pressure Cut-Out Switch . . Behind RH headlights .................... . Main Fuel Pump . . . . . . . . . . . Under car, in front of LH rear wheel. .......... . Main Relay . . . . . . . . . . . . . . . On bracket in front of LH front shock tower ..... . Motor Relay . . . . . . . . . . . . . . In windshield header, above rear view mirror .... . Motronic Control Unit (2.5i
Engine) . . . . . . . . . . . . . . . . Under RH side of dash, above glove box ....... . Motronic Control Unit (2. 7e
Engine) . . . . . . . . . . . . . . . . Under RH side of dash, above glove box ....... . Normal Speed Coolant
Temperature Switch. . . . . . . . Top LH side of radiator ................... . Oil Level Sensor . . . . . . . . . . . Top LH side of oil pan .................... . Oil Pressure Switch . . . . . . . . . Below oil filter ......................... . On-Board Computer Module . . . In center console, on RH side of radio ......... . On-Board Computer Relay Box. . Under LH side of dash, above hood release ...... . Outside Temperature Sensor. . . Behind splash guard, near LH fog light ......... . Over Voltage Protection Relay. . Under LH side of dash, near ABS Electronic Control
Unit ............................... . Oxygen Sensor (2.5i Engine). . . Lower RH rear of engine compartment. ........ . Oxygen Sensor (2. 7e Engine) . . In front of catalytic converter, on top of exhaust
pipe ................ · .. · · · · · · · · · · · · · Oxygen Sensor Heater Relay . . . On bracket, in front of LH front shock tower ..... . Park Brake Switch . . . . . . . . . . At base of parking brake .................. . Power Antenna . . . . . . . . . . . . In trunk, behind LH wheel well .............. . Power Distribution Box. . . . . . . At top rear of LH front wheel well ............ . Power Window Circuit Breaker . On center console, above radio .............. . Power Window Motors. . . . . . . Forward part of each door ................. . Pulse Wheels . . . . . . . . . . . . . On wheel, in brake housing Rear Lights Check Relay
(Convertible). . . . . . . . . . . . . Below LH side of rear seat, behind trim panel Rear Lights Check Relay (Non-
Convertible) . . . . . . . . . . . . . In trunk, above LH wheel well .............. . Rear Power Window Motor . . . . Rear of passenger compartment, behind trim panel . Rear Window Blower . . . . . . . . Behind center of rear seat ................. . Rear Window Blower Relay . . . . Behind center of rear seat, on rear window blower . Rear Window Safety Switch . . . On center console, left of shift lever .......... . Reference Point Sensor . . . . . . Lower LH side of transmission bell housing ...... .
Page-Figure 7000- 9-2 7000- 7-5 7000- 3-3
7000- 5-1 7000- 2-5 7000- 4-5 7000- 0-5 7000- 6-6
7000-10-3
7000- 7-5
7000- 2-1 7000- 1-3 7000- 2-4 7000- 6-5 7000- 5-5 7000- 4-1
7000- 5-2 7000- 9-6
7000- 4-3 7000- 0-5 7000- 7-2 7000- 8-3 7000- 0-1 7000- 6-5 7000- 4-6
7000-10-5
7000- 8-4 7000-11-1 7000-10-6 7000-10-6 7000- 7-1 7000- 0-3
COMPONENT LOCATION CHART 9000-3
COMPONENTS Page-Figure Safety Switch. . . . . . . . . . . . . On top of LH wheel well, near cruise control
actuator .................... · . . . . . . . . . 7000- 1-1 Seatbelt Switch . . . . . . . . . . . In driver's seatbelt buckle Seatbelt Warning Timer . . . . . . Under LH side of dash, on electrical bracket ..... . Speed Detectors . . . . . . . . . . . On wheel, in brake housing ................ . Speedometer Sender . . . . . . . . In rear of differential ..................... . Start Relay. . . . . . . . . . . . . . . Upper LH corner of driver's footwell .......... . Starter. . . . . . . . . . . . . . . . . . Lower LH rear of engine Sunroof Motor . . . . . . . . . . . . In windshield header, above rear view mirror ..... TDC Sensor . . . . . . . . . . . . . . Front of engine, above crankshaft vibration
dampener ........................... . Temperature Switch (0 Degrees
C) . . . . . . . . . . . . . . . . . . . . On engine bulkhead, left of battery junction block .. Thermo-Time Switch . . . . . . . . Top front of coolant thermostat housing ....... . Throttle Switch (2.5i Engine). . . Below LH side of throttle body .............. . Throttle Switch (2. 7e Engine) . . Below rear of throttle body ................ . Trunk Lock Motor . . . . . . . . . . On trunk lock center support ............... . Unlock Inhibit Switch. . . . . . . . Rear of LH front door Washer Fluid Level Switch . . . . In reservoir, behind RH headlights ............ . Washer Pump . . . . . . . . . . . . . Ahead of RH front wheel well, on reservoir ...... . Water Shut-Off Solenoid. . . . . . LH side of evaporator housing .............. . Wiper Motor . . . . . . . . . . . . . . Under LH fresh air intake cowl Wiper/Washer Switch . . . . . . . Upper RH side of steering column
CONNECTORS C101 (20 pins) . . . . . . . . . . . . Next to power distribution box, mounted on engine
dash ............................... . C 103 (29 pins) . . . . . . . . . . . . Behind LH side of dash, on body electrical bracket .. C 104 (3 pins) . . . . . . . . . . . . . Behind RH side of dash, above glove box ....... . C 105 ( 1 pin) . . . . . . . . . . . . . . RH side of evaporator housing .............. . C 106 ( 1 pin) . . . . . . . . . . . . . . Near washer pump ...................... . C107 (1 pin) .............. Near washer pump ...................... . C 109 (6 pins) . . . . . . . . . . . . . Near wiper motor C 113 (3 pins) . . . . . . . . . . . . . Behind LH headlights .................... . C 126 (2 pins) . . . . . . . . . . . . . Behind LH headlights .................... . C 127 (2 pins) . . . . . . . . . . . . . Behind RH headlights .................... . C 128 (2 pins) . . . . . . . . . . . . . Behind RH front side marker light C 129 (2 pins) . . . . . . . . . . . . . Behind LH front side marker light C131 (1 pin). . . . . . . . . . . . . . Behind RH side of dash, above glove box ....... . C132 (1 pin). . . . . . . . . . . . . . In console, near automatic transmission range
switch ............................. . C 140 (3 pins) . . . . . . . . . . . . . Near RH rear side of engine ................ . C 141 (3 pins) . . . . . . . . . . . . . Under RH side of car, below passenger side ..... .
7000- 5-6 7000- 3-6 7000- 4-4 7000- 5-6
7000- 6-6
7000- 2-2
7000- 3-4 7000- 1-5 7000- 9-5 7000- 0-4 7000- 8-5
7000- 2-6 7000- 3-1 7000- 6-3
7000- 0-2 7000- 5-4 7000- 7-4 7000- 7-3 7000- 2-6 7000- 3-1
7000- 1-2 7000- 1-2 7000- 2-5
7000- 7-4
7000- 7-1 7000- 3-3 7000- 4-3
9000-4 COMPONENT LOCATION CHART
CONNECTORS C142 (1 pin) ............. . C143 (1 pin) ............. . C 150 (2 pins) ............ . C151 (2pins) ............ . C200 (9 pins) ............ . C201 (6 pins) ............ . C202 (13 pins) ........... . C204 (9 pins) ............ . C208 (2 pins) ............ . C209 (7 pins) ............ . C210 (4 pins) ............ . C211 (1 pin) ............. . C212 (2 pins) ............ . C215 (2 pins) ............ . C217 (2 pins) ............ . C218 (2 pins) ............ . C219 (2 pins) ............ . C233 (2 pins) ............ . C235 (3 pins) ............ . C240 (6 pins) ............ .
C241 (1 pin) ............. . C251 (4 pins) ............ . C260 (2 pins) ............ . C301 (2 pins) ............ . C302 (25 pins) Accessory
Connector ............. . C303 (3 pins) ............ . C304 (3 pins) ............ . C305 (1 pin) ............. . C307 (2 pins) ............ . C308 (1 pin) ............. . C309 (2 pins) ............ . C310 (1 pin) ............. . C351 (1 pin) ............. . C352 (2 pins) (Convertible) ... . C352 (2 pins) (Non-Convertible) C360 (2 pins) ............ . C401 (7 pins) ............ . C402 (7 pins) ............ . C403 (4 pins) ............ . C404 (21 pins) ........... . C405 (21 pins) ........... .
Under LH side of dash, near steering column ..... Under LH side of dash, near body electrical bracket . On top of LH front wheel well ............... . On top of RH front wheel well .............. . Under LH side of dash, on steering column ...... . Under LH side of dash, on steering column ...... . Under LH side of dash, on steering column ...... . Under LH side of dash, near steering column .... . Near brake pedal support bracket ............ . Above brake pedal ...................... . On LH side of steering column .............. . RH front of engine compartment, near washer pump Under LH side of dash, near accessory connector .. Center console, behind radio ............... . Under LH side of dash, near accessory connector .. Behind center of dash In trunk, above LH wheel well .............. . Behind center of dash Under RH side of dash, near cruise control unit .... Under LH side of dash, above body electrical bracket
Under LH side of dash, above steering column Behind A/C face plate Behind LH side of dash At base of shift lever ..................... .
Upper LH corner of driver's footwell .......... . At base of RH "B" pillar At base of LH "B" pillar Under LH side of dash, near accessory connector .. LH side of soft top stowage compartment ...... . LH side of soft top stowage compartment ...... . RH side of soft top stowage compartment ...... . RH side of soft top stowage compartment ...... . Under LH side of dash, near accessory connector .. Below LH side of rear seat ................. . Behind LH side of rear seat ................. . Behind RH side of rear seat In LH "B" pillar In RH "B" pillar Behind LH side of dash Above RH front door jamb switch Above LH front door jamb switch
Page-Figure 7000- 6-1 7000- 5-6 7000- 0-6 7000- 3-1 7000- 6-1 7000- 6-1 7000- 6-1 7000- 6-2 7000- 5-6 7000- 5-3 7000- 6-1
7000- 5-3 7000- 6-5 7000- 5-4
7000- 8-3
7000- 7-3
7000- 5-3 7000- 6-1
7000- 7-1
7000- 5-4
7000- 5-3 7000-11-2 7000-11-2 7000-11-3 7000-11-3 7000- 5-3 7000-10-5 7000- 8-1 7000- 8-2
COMPONENT LOCATION CHART 9000-5
CONNECTORS C500 (1 pin). . . . . . . . . . . . . . Behind LH side of dash C503 (3 pins) . . . . . . . . . . . . . In rear of LH front door C 510 ( 1 pin) . . . . . . . . . . . . . . Behind and above LH front speaker ........... .
GROUNDS G 100 (Convertible) . . . . . . . . . On RH shock tower ...................... . G 100 (Non-Convertible) . . . . . . RH rear of trunk, behind battery ............. . G 103 (2.5i Engine) . . . . . . . . . On RH shock tower ...................... . G 103 (2. 7e Engine) . . . . . . . . . On LH front of engine, under diagnostic connector . G 104. . . . . . . . . . . . . . . . . . . On inner fender, behind LH headlights ......... . G 106. . . . . . . . . . . . . . . . . . . In trunk, near LH wheel well G200. . . . . . . . . . . . . . . . . . . Under LH side of dash, above brake pedal ...... . G201 (Steering Column Ground) Upper LH side of steering column ............ . G202. . . . . . . . . . . . . . . . . . . Below RH side of rear seat ................. . G300 (Convertible) . . . . . . . . . Below LH side of rear seat ................. . G300 (Non-Convertible) . . . . . . Behind LH side of rear seat ................. . G302. . . . . . . . . . . . . . . . . . . In trunk, behind LH wheel well .............. . G600. . . . . . . . . . . . . . . . . . . In windshield header
Page-Figure
7000- 5-1
7000-10-2 7000- 8-6 7000-10-1 7000- 1-4 7000- 1-1
7000- 5-5 7000- 6-4 7000-11-1 7000-10-5 7000- 8-1 7000- 8-3