n.t. 2718 a b54 4/b/j/m

8/14/2019 n.t. 2718 a b54 4/b/j/m

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Basic manual: M.R. 302 part number. : 77 11 093 170

N.T. 2718 A

AUTOMATIC TRANSMISSION

AD8

77 11 192 908 FEBRUARY 1997 Edition anglaise

"The repair methods given by th e manufacturer in this document are based on th etechnical specifications current when it was prepared.

The methods may be m odified as a result of changes by the manu facturer in theproduction of the various component units and accessories from which his vehiclesare constructed".

All copyright s reserved by Renau lt.

Copying or translating, in part or in full, of this document or use of the service partreference numbering system is forbidden w ithout the p rior written authority of RENAULT.

C Renault 1997

In this technical note you will find a new procedure for the removal-refitting of auto-

matic transmission AD8 with the Z7X engine.

The removal-refitting procedure described in this technical note supersedes that descri-

bed in MR 302 part number 77 11 093 170.

The new Safrane is fitted with the latest generation computer with 55-way connec-

tions and has a PARK recognition switch integral with the automatic transmission

control unit (passenger compartment end).

The control cable adjustment section is common to phase 1 and 2 (see section 37).

B54 4/B/J/M

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Use 23DRIVING

The automat ic transm ission is lubr icated u nd er

pressu re, it is therefore only lubricated if the en-

gine is run ning.

Consequen tly, in order to avoid serious da mage, it

is essential to observe the following recommen da-

tions:

• never move with the ignition switched off (on a

descent for examp le), we cannot stress enough

how dangerous this is.

• never pu sh the vehicle (e.g. to reach a p etrol

pu mp , unless the precautions in the "Towing"

paragraph are taken).

Also, the veh icle is only driven if the engine is ru n-

ning. It is therefore imp ossible to start the engine

of an autom atic vehicle by pu shing it.

TOWING

It is always p referable to tow the veh icle on a flat-

bed trailer or with the front w heels raised.

How ever, if this is not possible, the vehicle may , in

exceptional circum stances, be towed at a sp eed of less than 40 km/h (25 m.p.h.) over a distance not

exceeding 50 km (30 miles) (lever in position "N")

TOWING LOAD (towing a caravan, boat, etc.)

The load towed must be less than or equal to

750 kg.

If this maximu m load is exceeded , the maximum

oil temp erature w ill be exceeded on a 7% gra-

dient, followed by a fall in oil pressure and thu s

rapid deterioration of the engine.

Identification

Vehicle

type

Engine

typeAT type Step down Converter

Differential

ratio

Speedo

ratio

Computer*

B54M Z7X 755 AD8 021 74/ 87 250Z 21/ 73 24/ 20 77 00 103 980

(*) For identification using the XR25, enter comman d G70*.

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Vehicle

Auto.

trans.

type

Accelerat

or

position

1 → 2

A B

2 → 3

A B

3 → 4

A B

4 → 3

A B

3 → 2

A B

2 → 1

A B

PL 53 53

PF 44 54 86 102 140 162 121 141 74 83 23 35

RC

B54M


Gear ratios 23

The figures given in the table are the average

theoretical gear change speed values in km/ h.

Tolerances ± 10 %.

PL : Light load .

PF : Full load .

RC : Kickdown (change to a lower gear).

A : Norm al gear change th resholds (selection

switch (1) disengaged - ind icator light

"S"extinguished).

B : Gear change threshold s off-set (selection

switch (1) engaged - ind icator light"S"illuminated).

95501-5S

55 104 169 145 98 46

AD8 021

Gear change thresholds

FOR AUTOMATIC TRANSMISSION TYPE AD8 021

(2nd type)

Gears 1st 2nd 3rd 4th Reverse

Gear reduction 2.71 1.55 1 0.68 2.11

Gear reduction+ step down 3.186 1.822 1.175 0.799 2.48

Overall reduction 11.075 6.33 4.086 2.779 8.623

Speed in km/ h at 1 000 rpm with

tyres 195/65-15, 205/55r16Z10.44 18.26 28.33 41.79 13.42

2nd type

2nd type

18 42 63 33 9

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Consumables 23

DESCRIPTION COMPONENT CONCERNED

MOLYKOTE BR2 greaseTransmission relay shaft grooves

Converter locating device

Loctite FRENBLOC Brake caliper m oun ting bolt

Loctite 518 Distributor housing

Parts which must always be changed

Parts which mu st be changed once they have beenremoved:

- the self-locking nuts,

- the copper seals ,

- the rubber sea ls.

Oil

Automatic transmission AD 8 has tw o oil qualities and tw o levels.

MECHANISM

ELF RENAULT MATIC D2 (D20104)

If this is not available, use:

MOBIL ATF 220D (D20104 or D21412)

TEXAMATIC 4011

Final D rive

TRANSELF TRX 75 W 80 W

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Drain - Fill - Levels 23

DRAIN

Final drive

The final d rive is not to be d rained , it is filled for

the length of its service life.

However, should draining be necessary, remove

plug (A).

Mechanism

The mechanism is drained by removing plug (B)

wh ich h as a triangular imprint (B. Vi. 1213).

Plug (D ) is a top-up plu g (squa re imprint).

95619R

Mot. 593 Drain spanner

B. Vi. 1213 Automatic transmission drain

spanner

M.S. 1019-10 XR25 testing equipment

SPECIAL TOOLS REQUIRED

FILLING

Final drive

Filling and topp ing up is carried out following the

removal of plug (C) and by injecting 1.5 litres of

oil into the final drive.

The oil level cannot be topped up by over-flow as

the filler hole d oes not r eflect the ideal final d rive

oil level.

95622R

To fill and top up the level of oil, use either:

- a pn eumatic oil distributor w hich ind icates the

quantity of oil sup plied,

- a graduated test tube and a syringe.

An incorrect level of oil may resul t in:- deterioration o f the lip seals,

- an oil leak via the breather.

Mechanism

Filling is carried out after rem oval of plug (E).

95618-1R

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Drain - Fill - Levels 23Use a fun nel with a 15/100 filter in order to

prevent the entry of impurities.

The level MUST be checked following th e

procedure described below:

Before checking the oil level:

• if the automatic transmission has been

dr ained, fill with 4 li tres of oil,

• if it is just a simple check, 0.5 li tre of

recommend ed oil mu st be add ed.

1. With the v ehicle on a 4 post lift, transm ission

at ambient temperature.

2. Start th e engine, control lever in "park".

3. Connect the XR25, enter:

D 1 then # 0 44

4. Raise the vehicle and run the engine u ntil it

reaches a temperatu re of 60°C.

5. When the required temp erature has been

reached, with th e engine running, open the

top-up plug (D ) and allow the excess oil toflow out (this should be in excess of 0.1 li tre)

for app roximately 20 seconds . Refit the plug.

6. If the volu me of oil recovered is less than

0.1 li tre (≈ 1 glass), the level is not correct,

repeat the operation.

In this case, add 1 litre of recommended oil

again and allow the transm ission to cool in

order to repeat th e operations.

Fault indicator light

ELECTRONIC FAULT INDICATOR LIGHT MESSAGE

Operation with no fault:

• When the ignition is switched on, vehicle and

engine stopped , lever in position "P" or "N",

the ind icator light illum inates.

• When the starter is operated, the indicator

light remains illuminated.

• When the key is released, with the ignition on

and the engine run ning, it extinguishes

approximately 3 seconds after starting th e

engine.

If a fault is present:

• With the vehicle stationary with the engine

running or wh ile driving, the indicator light is

permanently illuminated.

• With the vehicle moving, illumination and

extingu ishing of the ind icator light with no

operation of the ignition key.

• With the vehicle moving, brief illumination of

the ind icator light.

Oil tempe rature< - 20°C or > + 140°C

• With the vehicle moving or stationary, with the

ind icator light flashing once per second

app roximately, in this case, reduce the

performance requirements by m oderate

acceleration.

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Changing the strainer 23Remove:

- th e oil su m p,

- the strainer bolts (2).

Strainer mounting bolt 0.5

Casing mounting bolt 1

+ 0.10

Place the vehicle on a tw o post lift.

REMOVAL

Drain the transm ission (mechanism section) by

removing, from the oil sump , the plug w ith the

triangular imp rint (1) (B.Vi. 1213).

95619R1

95623R

Before refitting, clean the casing and the ferrite.

Check the cond ition of the casing seal and the

drain and top-up p lugs.

REFITTING

Proceed in the reverse order to removal.

Fill with oil and check the level (see previous

section).

TIGHTENING TORQUES (in daN.m)

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Checking the converter timing point 23Place the vehicle on a two-post lift.

Raise the veh icle un til the wheels are several

centimetres off the ground.

Connect the XR25.

Place the ISO selector in position S8.

Enter the A4.2 transmission code

to d isplay the oil temp erature.

The check should be carried ou t at an oil temp era-ture between 60 °C an d 80 °C.

Start the eng ine, push the lever in position D .

Enter the code :

to display the engine speed.

Accelerate fully with the brakes ap plied.

The front w heels should not turn .

WARNING: full load mu st not be m aintained for

more than 5 seconds . If this time is exceeded ,

there is a significant risk of damage to the conver-

ter or to the automatic transmission .

The engine speed sh ould stabilise at :

2 140 ± 150 rpm.

IMPORTANT:

Once the measur ement has been taken, release

the accelerator and keep the brakes app lied u ntil

the engine sp eed stabilises at idle (risk of dam age

to the au tomatic transmission if this instru ction is

ignored).

The converter m ust be changed if the timing p oint

is outside of the tolerance.

D 1 then # 0 44

# 0 6

Z engine

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"No-load/Full-load" validation 23A4.2 generation computers use information

relating to the load su pp lied by the injection

potentiometer.

In order to p rogramme th e potentiometer travel,

it is necessary to validate the full load and thenthe no load positions.

In order to d o this:

Check that there is no mat jammed between the

pedal and the kickdow n switch.

- con nect th e XR25,

- p lace th e ISO selector in position S8,

- switch on the ignit ion without starting theengine ,

- selector in posi tion P or N .

NOTE: if these two cond itions are not met, the

display will ind icate this du ring the p rocedure.

Z engine

Enter the A4.2 transmission code .

Enter

to start the programm ing procedu re PL / PF.

Display:

D 1 4

*02G

The XR25 asks for a full load .

Validate th e full load by pressing the accelerator

ped al (beyond the kickdown p oint of resistance).

Display:

The XR25 asks for a no- load .

Validate th e no load by releasing the accelerator

pedal.

Display:

VERY IMPORTANT: switch off the ignition an d

switch it on again. Enter the A4.2 transmission

code to check that the validation has been carried

out.

Left-hand bargraph 10 extingu ished = correct.

Switch of the ignition and disconnect the XR25.

If left-hand bargrap h 10 is not extinguished and

before entering the correspond ing fault-finding

chart, check that the accelerator pedal is correctly

adjusted (see the correspond ing section).

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Hydraulic distributor 23- the selector (3) in order to allow excess travel of

the lever beyond the "park"position.

Casing mounting bolt 1

Strainer mounting bolt 0.5

Distributor mounting bolt 0.5


+ 0.10

REMOVAL

Drain the transm ission (mechanism section)by

removing the plug w ith a triangular imprint (1) (B.

Vi. 1213).

95619-1R

95624R

This excess travel is necessary to d isengage the

man ual valve selector.

+ 0.10

+ 0.10

Remove:

- th e oil su mp ,

- the strainer bolts (2),

95623R

95615S

Z engine

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Hydraulic distributor 23- the manual valve selector (5) by disengaging it

first at (A) and then at (B),

Disconnect the sealed connector w ire by pr essing

the locking r ing.

95615-1R

- the sixteen hydraulic distributor mounting

bolts; the bolts (X) stay in p lace and secure th e

distribu tor closing plate,

Remove:

- the sealed connector after removing bolt (4),

95616-1R95616R

95617-1R

- the hydraulic distributor after pushing the gear

lever selector to its limit an d by freeing the

mod ulating solenoid valve from the casing.

Z engine

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Hydraulic distributor 23Fill with oil and check the level (see the section

concerned).

NOTE : If the hyd rau lic distributor is changed or

removed, change the m odu lating solenoid valve

filter, the strainer an d its seal.

Fit a new strainer and seal.

Tighten the tw o mou nting bolts (2) to a torque of

0.5 daN.m.

95623R

95624R

+ 0.1- 0

Position th e oil sump (check that th e seals are in

good condition and that the m agnet is present).

Tighten the casing bolts to a torque of 1 ±

0.1 daN.m.

Reconnect the sealed connector.

Refit the gear selector (3).

Z engine

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Oil cooler 23- the two radiator bolts (A an d B).

95617S

REFITTING

Place the vehicle on a tw o post lift.

Disconnect the battery.

Remove:

- the engine under-tray,

- the two radiator hoses after clamping them,

Z engine

Oil cooler mounting bolt 2.5


95618-1R1

REFITTING

Refit in reverse ord er to rem oval.

In ord er to ensur e correct sealing, the oil cooler

O-rings m ust be changed.

Tighten the bolts to the recommended torque.

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Removal - Refitting 23

The autom atic transm ission is removed from

un derneath the vehicle.

Place the vehicle on a tw o-post lift.


Remove:

- the front wheels,

- the engine under-tray.

Drain the au tomatic transmission final drive A (if

the au tomatic transmission is to be changed, alsodrain the m echanism at B).

Z engine

95619R4

SPECIAL TOOLS REQUIRED

T. Av. 476 Ball joint extractor

Mot. 453-01 Flexible hose pliers

Mot. 1202 Spring clip pliers

EQUIPMENT REQUIRED

Engine support equipment.

Component support.

Wheel bolt 10Brake caliper mounting bolt 3.5

Shock absorber base mounting bolt 25.5

Steering ball joint mounting nuts 4

Lower ball joint mounting nuts 6.5

Mounting bol t for front of su bframe,

front axle ∅ 10 4.5

Mounting bolt for rear of subframe,

rear axle ∅ 16 24

Torque pickup rod bolt 15

Relay bearing plate bolt 2Automatic transmiss ion mounting

mounting bolt 5.5

Automatic transmission nuts on flexible

pad 6.7

Automatic transmission mounting tower

mounting bolts and nuts 4.8

Drive plate to converter mounting

bolt 3.5


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Removal - Refitting 23- the primary exhaust downpipe and the two

heat shields (A) and (B).

Z engine

Remove the mu d shield (1) and the side protectors

(2).

96470R

Left-hand side:

Unscrew the shock absorber base.

Unscrew the lower ball joint nu t as much as

possible and detach it.

Remove the brake caliper and hook it onto the

suspension spring to p rotect the p ipe.

Detach the steering ball joint u sing tool T. Av.

476.

Remove:

- the ABS sensor with its bracket and h ook it

onto the shock absorber spring,

- the three driveshaft gaiter mounting bolts,

- the "brake d isc/stub axle carrier/driveshaft"

assembly by removing th e shock absorber base

bolts and th e lower ball joint nu t,

95236R

95235R

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Removal - Refitting 23Remove the shock absorber base bolts and

remove the "brake disc/stub axle

carrier/driveshaft" assembly by removing th e

lower ball joint nu t, taking care to suppor t the

end of the d riveshaft so that the grooves do not

cut the au tomatic transm ission ou tlet lip seals.

Remove:

- the steering case heat shield,

- the steering case on the engine half-section

and attach it,

2nd type :

Remove the wiring br ackets (1) and (2) and detach

it.

Disconnect and detach the connections (3).

Z engine

Right-hand side:

Remove:

- the two driveshaft clamp moun ting bolts (C),

94969R

- the brake caliper and hook it onto the

suspension spring to p rotect the p ipe,

- the ABS sensor with its bracket and h ook it

onto the suspension spring.

Detach the steering ball joint u sing tool T. Av.476.

Unscrew the lower ball joint nu t as much as

possible and detach it.

12202S

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Removal - Refitting 23Z engine

1st type

Remove:

- the earthing braid (E),

- the wiring mounting section (F),

95620R1

- the variable power steering speed sensor (H).

95621-2R2

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95626S

12201S

Extract the six compu ter connectors and d etach

the two harness connectors (1) and (2) (the oth ers

descend with the automatic transmission).

91743G

Remove:

- the drive plate protectors,

95625R

2nd type

Remove:

- the computer wiring bracket,

- the com puter ,

1st type

Remove:

- the computer/ bracket assembly.

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- the three mounting nuts (D ) which secure th e

converter to the drive plate,

- the starter heat shield (G),

- the starter bolts and disengage it without

removing it taking care to retrieve the d rive

plate cover.

12202R

95621R

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Remove:

- the expansion bottle and d isengage it,

- the ignit ion power module (MPA)/ bracket

assembly.

2 nd type

Remove:

- the two oil cooler hoses after clamping them,

95112S

12199S

1st type

95617S

- the TDC sensor,

- the gear selection cable by unhooking the ball

joint (J) and then pu lling upw ards firmly at (K).

95628R

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Remove:

- the torque p ickup rod ,

- the condenser drainage pipe on the engine

half-cradle and release the protective cover forthe fuel and brake p ipes (supp ort on the

enginehalf-cradle, right-hand side)

Place a component jack un der the engine half-

cradle (as a safety m easure, secure the assembly

using a chain).

Remove:

- the lower anti-roll bar rod ball joint nuts (K),

- the four mounting bolts (N ) which secure th esubframe to the body,

96564R1

- th e bolts (A) and th e engine half-section/ body

connecting component.

95132R

Disconnect and d isengage the ABS cable from th e

subframe.

Gradu ally lower the compon ent jack and

disengage the assembly from u nd erneath the

vehicle.

Remove the left-hand flexible pad nu t.

Lower the assembly taking care not to touch the

pow er steering p um p and remove the three bolts

11759R

Place the comp onent jack under the autom atic

transmission.

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Remove the automatic transmission mounting

bolts (O) and remove the transmission.

REFITTING

Before refitting th e au tomatic transm ission to the

engine:

Check that the d rive plate is not dam aged.

Check the presence of the centring pins on the

unit and the starter.

95629R

Using Molykote BR2 , grease the d evice for

locating the converter in the crankshaft.

95620-1R

95621-1R

Push the converter as far back as possible on thegearbox end and disengage the transmission by

pu shing to back perfectly into the engine shaft.

Fit an imm obilising p late to the converter to

preven t if from falling.

Check that th e torqu e converter is is correctly

located in th e automatic transmiss ion.

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IMPORTANT: check the ad justm ent of the selec-

tion con trol cable (see section 37).

Refit in the reverse ord er to remov al.

TIGHTEN ALL OF THE BOLTS, NUTS ANDSCREWS TO THE RECOMMENDED TORQUE.

Fit the caliper m oun ting bolts with LOCTITE

FRENBLOC and torque tighten them.

SPECIAL POINTS:

Before refitting the heat shields and the p rimary

exhaust d own pipe, fill the final drive (see the

section concerned).

In order to m ake fitting the primary exhaustdow npipe mou nting clips easier, secure th e

dow npipe to the anti-roll bar u sing a tensioner.

12200S

Top u p the cooling circuit.

Top up the autom atic transm ission (see the

section concerned).

Press the brake pedal several times to bring the

pistons into contact with th e brake pads.

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Computer 23Z engine

2nd type

REMOVAL

Place the vehicle on a tw o-post lift.


Remove:

- the engine under-tray,

- the wir ing bracket ,

- the two mounting bolts,

- the com puter .

12201S

REFITTING


When it is changed or wh en the m emory is erased,

do not forget to validate the no-load/ full-load

positions (see the section concerned).

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Line pressure sensor (8) 23Z engine

The line p ressure sensor is secur ed to th e

autom atic transm ission casing by tw o bolts.

It is d irectly accessible under the veh icle.

WHEN IT HAS BEEN CHANGED, DO NOT FORGETTO ERASE THE MEMORY AND TO VALIDATE THE

NO-LOAD/FULL-LOAD POSITIONS (see the section

concerned).

95619-1R1

The switch is secured to the autom atic

transm ission casing.

It is accessible from above th e vehicle after

removal of the securing plate and the earth screw

(A).

WHEN IT HAS BEEN CHANGED, DO NOT FORGET

TO ERASE THE MEMORY AND TO VALIDATE THE

NO-LOAD/FULL-LOAD POSITIONS (see the section

concerned).

Multi-function switch (485)

95624R1

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Kickdown switch (Removal - Refitting) 23Z engine

REMOVAL

Remove the kickdown switch, disengaging the

floor carpet under th e accelerator peda l and

disconnect the connector wh ich is located above

the pedal.

PRC2302

REFITTING


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Speed sensor (250) 23Z engine

The speed sensor is secured to the autom atic

transm ission casing by a plate.

WHEN IT HAS BEEN CHANGED, DO NOT FORGET

TO ERASE THE MEMORY AND TO VALIDATE THE

NO-LOAD/FULL-LOAD POSITIONS (see the sectionconcerned).

91367R

The sequence and mod ulating solenoid valves and

the temp erature sensor can only be changed

following removal of the hydr aulic distributor

(see previous section).

Remove:

- the distributor closing plate (B) mounting bolts

(A),

- the sequence solenoid valve (C) and

mod ulating solenoid valve (D ) mounting bolts.

Disengage the solenoid v alves/ distributor sensorassembly.

Solenoid valves

95618R

Solenoid valve mounting bolts 0.9

D istributor plate mounting bolt 0.5

Hydraulic distributor bolt 0.5


+ 0.10

+ 0.10

+ 0.10

The refitting of the assembly d oe not p resent any

particular pr oblems, proceed in reverse order to

removal.

IMPORTANT: retighten the bolts to the

recommend ed torque.

NOTE: each sequence solenoid va lve is positioned

on its bracket, do not invert them.

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Special features 23KICKDOWN FUNCTION

To in ord er to activate the kickdow n function on

type AD8 autom atic transm issions, two p ieces of

information are required.

• 1st piece of information:

Full load on th e accelerator p edal, for

poten tiometer information of a load lower

than 12% (value d isplayed on the XR25 at #12).

• 2nd piece of inf ormation:

Detection by th e kickdown switch (located on

the bu lkhead, close to the accelerator ped al) of

the use of a "point of resistance"after full

load.

The combination of these two pieces of

information triggers the kickdow n function. Thismethod allows that fun ction to be used at h igher

List of components

119 Automatic transmission comp uter

120 Injection compu ter

129 Gear change mod e control

232 Starting relay

225 Diagnostic socket

247 Instrum ent panel

260 Fuse box

319 AC control panel

363 Voice synthesiser compu ter

373 Cruise control compu ter

446 Headlight adjustment control light

569 Automatic transmission kickdown

602 Reversing lights relay

626 Autom atic transmission selector light

cluster

Wiring diagram

754 Electric/ hyd rau lic interface

755 Poor grip control

779 Multi-fun ction switch

780 Speed sensor

781 Line p ressure sensor

List of connections

R22 Engine/ Automatic transmission

R149 Engine/ Front left wing

R150 Passenger comp artment/ Front left wing

Earth

MH Engine harness earth

MJ Right-hand "A" post earth

ENGINE TORQUE DAMPING

Engine torque red uction d uring gear changes has

the following objectives:

1. impr oving gear change comfort,

2. redu cing the theoretical load of the hyd rau lic

receivers stressed d uring gear changes,

3. relieving the m echan ical comp onents.

Torque redu ction is achieved by acting on the

adv ance point. The automatic transmiss ion

comp uter sends the torqu e reduction signal to the

injection compu ter. Throughou t the gear change,

the advan ce point is reduced by 35o

In the event of a fault, refer to injection fau lt-

finding "D13", left-hand bargrap h 5.

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Wiring diagram 23Z engine

PRN2300

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Wiring (Removal - Refitting) 23Z engine

12202R1

Remove:

- the wiring brackets C, D , F, G,

- the connector ( 6 ) and disengage it,

- the bracket at (s),

- the com puter ,

Remove the wiring assembly.

Refit in reverse ord er to rem oval.

Validate the no-load/ full-load positions (see the

section concerned).

- the speed sensor, retrieving the seal.

Disconnect the sealed connector wire pr essing th e

locking r ing.

95617-1R

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Fault-finding - General 23Safrane

The Safrane B54M fitted with typ e AD 8 automatic transmission has the latest generation computer

(generation A4-2).

Fault-find ing for this fun ction u sing the XR25 is carried ou t u sing fiche N° 35.

The basic manu al for the interpr etation of bargrap hs and the pr ocessing of customer complaints is memo 97Diag 11 (or workshop manu alTA-A DIAG III). CHART 4 in th is technical note is specific to the Safrane an d

completes the custom er comp laints for the manual.

Special points in relation to Safranes fi tted w ith the generation A4-1 computer:

- The "load" information (throttle open ing) is sent ou t by th e injection comp uter (there is no longer a load

poten tiometer specific to the au tomatic transmission).

- A display on the instrument panel ind icates the position of the selector lever and th e automatic

transmission operating mode (sport / poor grip starting gear change mod e).

- An ad ditional switch at the base of the selector lever completes the mu lti-function switch information toidentify the park p osition (information n ecessary for the instrument p anel display).

- A "winter" pu sh-button on th e central console allows take off in 2nd gear if grip is p oor.

- The computer connections are monobloc with 55 tracks and the automatic transmission wiring is specific

(interm ediate connector on the pressu re sensor circuit, new compu ter position, ...)

Variations to be taken into account during fault-finding:

- Connection between the automatic transmission and injection compu ters:

. The load information is sent on track 41 of the injection comp uter connector.

. The engine speed information is sent on track 43 of the injection comp uter connector.

. The Park / Neutral / torque reduction information is received by the injection computer on track 7 of its

connector.

- The connection between the automatic transmission and the air cond itioning control compu ter is via

track 36 of the automatic transmiss ion comp uter and track B12 of the air conditioning control comp uter.

- Allocation of tracks on the "winter" button connector:

. Ea rth on tr ack A1.

. Signa l on t rack B5.

. + side lights on track A5 .

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Fault-finding - Customer complaints

INSTRUMENT PANEL PROBLEMS

Illum ination of the autom atic transm ission fault indicator light w ith no

fault ind icated on th e XR25. CHART 1

Safrane

Only refer to this customer complaint following an XR25 check and a conformity

check.INSTRUCTIONS

No indication on the autom atic transmission display on the instrument

pan el (lever position, sport or w inter operating m ode).CHART 2

The automatic transmission display on the instru men t panel indicates "P"

wh en the selector lever is in position "N".CHART 3

The automatic transmission display on the instru men t panel indicates "N"

wh en the selector lever is in position "P".CHART 4

23

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check.INSTRUCTIONS

ILLUMINATION OF THE AUTOMATIC TRANSMISSION

FAULT INDICATOR LIGHT WITH NO FAULT INDICATED ON

THE XR25

CHART 1

Look for a shor t circuit to earth of the connection betw een track 12 of the automatic transmission

computer connector and track 25 of the instrument panel connector (instrument panel automatic

transmission disp lay connection).

This fault also results in the absence of the lever position and op erating mod e (sport an d w inter) displays.

AFTER

REPAIR Carry out a road test followed by an XR25 check.

Safrane

23

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check.INSTRUCTIONS

CHART 3

Check the fitting of the "Park" position recognition switch at the ba se of the selector lever.

Check the op eration of the sw itch (contact closed except in the "Park" position).

Look for a shor t circuit to earth of the connection betw een track 14 of the automatic transmission

computer connector and track A3 of the "Park" position recognition switch connector.

AFTER


Safrane

THE AUTOMATIC TRANSMISSION DISPLAY ON THE

INSTRUMENT PANEL INDICATES "P" WHEN THE SELECTOR

LEVER IS IN POSITION "N"

23

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check.INSTRUCTIONS

CHART 4

Check the fitting of the "Park" position recognition switch at the ba se of the selector lever.

Check the op eration of the sw itch (contact closed except in the "Park" position).

Check the continu ity of the connection between earth and track A2 of the "Park" position recognition

switch connector.

Check the continuity of the connection between track 48 of the automatic transmiss ion computer

connector and track A3 of the switch conn ector.

AFTER


Safrane

THE AUTOMATIC TRANSMISSION DISPLAY ON THE

INSTRUMENT PANEL INDICATES "N" WHEN THE SELECTOR

LEVER IS IN POSITION "P"

23

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MECHANICAL COMPONENTS CONTROLS

Automatic transmission control 37Z engine

EXPLODED VIEW

1 Control lever

2 Selector cable

3 Cable stop

4 Cable securing clips

5 "Park" position recognition switch

6 Gear grids

7 Bulkhead fastener b racket

F Moun ting ball joint on the autom atictransmission

G Moun ting ball joint on the control unit

PRN2301

37-1

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Gear selector knob 37Z engine

IMPORTANT: the gear selector knob is sup plied by

th e Parts D epartment with the Park position

recognition switch, it is essential that of both

comp onents are changed.

The instru ctions sup plied in the replacement kitmu st be followed or you mu st refer to the section

concerned.

REMOVAL

Disconnect the connector (A) and u sing cutting

pliers, cut the tw o wires at (B).

Remove the bolt (C) and p ull the knob upw ards in

order to detach it from the selector.

95641-1R

REFITTING

Fit wires (1) and (2) in the selector sleeve.

WARNING: three precautions mu st be taken so as

not to p inch the w ires in the sleeve:

1. Fit the wires as shown in th e diagram.

96476R

2. Take care not to cross th e wires (correctly

define the d irection of fitting of the knob).

DI3714

3. Pull the w ires at the same time as you fit the

knob on the selector.

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Gear selector knob 37Z engine

Secure th e selector kn ob (bolt C) and fit the wires

in the p rotective cover (D ).

Fit the tw o terminals in the connector (E)

observing the d irection for fitting with the "Park"

switch.

PRN2307

DI3711

Crimp th e wires to the terminals available in the

kit.

WARNING: The "Park" position recognition

switch is crimp ed at A2 with the knob.

PRN2306

DI3713R

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Selection control cable 37Z engine

REMOVAL


Passenger compartment end:

The control cable can only be removed following

removal of the front an d rear console (see the

"Control removal" section).

Remove the clip (E).

Release the cable from the ba ll joint.

95641R

Engine end:

Remove:

- the ignit ion power module (MPA)/ support

assembly,

12199S

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- the gear selection cable unhooking the ball

joint (F) and the pu lling up ward s firmly at (G),

95628R1

- the cable bracket bolts (2).

11802R

REFITTING/ADJUSTMENT

Route the cable into the pa ssenger comp artmen t

and secure it to the bulkhead (do not engage the

ball joints).

Place the automatic transmiss ion selector lever in

position D .

PRN2302

Release the sheath end (3) by turning it a 1/ 4 turn

and ensu re that the sheath (P) slides freely.

11792R1

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Push the cable sheath as far forward s as possible.

12271S

1. Fit the cable at (G).

2. Gradually pu sh the cable in order to engage

ball joint (F) on the automatic transmission

control lever.

NOTE: ensure that the automatic transmiss ion

control lever rem ains in position D .

95628R3

Place the gearbox control lever in position D .

Engage the ball joint at the gearbox end of the

control and lock the sheath end (3) ensuring that

the locking p in is at its limit, in notch (C) of the

control unit (pu shing cable (P )gently).

11792R2

12272R1

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CHECKING

Check that t he locking pin is correctly positioned

in the control un it rack at position D .

12371R

A an d C = incorre ct adjus tment ri sk s

damaging the automatic

transmission.

B = correct adjustment.

Place the lever in p osition D . Push it firmly w ith

the end of your fingers, switch on the ignition and

confirm th at the engine does not start.

Confirm the correct setting of the control by

referring to the "Reading the gear engaged "

section on th e following page.

Refit in reverse order to remov al.

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Reading the gear engaged 37Z engine

If no au tomatic transmission operational faults are shown on the central display of the XR25

ISO selector in position S8 and code

you can read at

D 1 4

# 0 1

Lever posi tion

Message on the display

Ignition on

engine stopped

Engine running

vehicle stationaryVehicle moving

Observations

PRN

D

o. pr. r

o. n

3 Hr. d

o. pr. r

o. n

l. dor 2. d (2)

r. ro. n

l. d2. d (1)3. d (1)4. d

oU. r if gear change refused

If the brake p edal is pressed,

the gear engaged m ay

become 3HA.d.

3 (3) 3 Hr. 3 I. 3or 2.3 (2)

I. 32.3 (1)

3. 3

2 (3) 3 Hr. 2 I. 2or 2.2 (2)

I. 22.2

1 (3) 3 Hr. I IF. I IF. I

(1) if the pedal is released su dd enly in one of these positions, the gear is locked at 3b.d or 2b.d.

(2) 1 : normal mode.

2 : poor grip mode.

(3) If the lever is engaged above the safety threshold, d3 or 2 is displayed, followed by I.3, I.2, and IF.I

respectively wh en the gear change is carried ou t.

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PARK recognition switch (Removal - Refitting) 37Z engine

IMPORTANT:

The Park recognition switch is suppl ied by the

Parts Department with the selector knob, it is

essential that both components are changed.

The instructions supplied in the replacement kit

must be fol low ed or you must refer to the section

concerned.

REMOVAL


Remove:

- th e ash tray,

- th e gaiter (A),

- the switch bracket (B) and d isconnect the

switch.

Place the lever in the 1st gear hold p osition and

remove the display (C) tilting it to the right,

disengage the lighting br acket.

Remove the sw itch su pp ort (D ) and remove the

switch.

Remove the two switch bolts (E).

Disconnect and un clip the connections at (F).

Cut the connector w ires.

11793RRefit in the reverse order to removal.

Ch k th t ti f th h

PRN2304

PRN2305

n.t. 2718 a b54 4/b/j/m

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