including 3- and 4-port isolation modules with 2- and 3-plug ......november 1, 2008 lit. no. 22373,...

November 1, 2008Lit. No. 22373, Rev. 07

Including3- and 4-Port Isolation Modules with

2- and 3-Plug Systems and Relay Systems

SNOWPLOWS

ELECTRICAL SCHEMATICS GUIDE

Lit. No. 22373, Rev. 07 November 1, 2008

3

Preface .............................................................................................................. 4Lamp Types and Harness Connectors .............................................................. 5Electrical Connectors – 3-Plug Systems ........................................................... 6Electrical Connectors – 2-Plug Systems ........................................................... 7In-Line Adapter Instructions – 28027-2 ............................................................. 8Vehicle Harness with Relay – 29861 ................................................................. 9

3-Port Isolation Module Systems ................................................................ 10Headlamp Index .............................................................................................. 10Theory of Operation – Overview ..................................................................... 11Theory of Operation – White Label Non-DRL Module .................................... 12Theory of Operation – Green Label DRL Module ........................................... 13Theory of Operation – Blue Label DRL Module .............................................. 14Electrical Schematic – 3-Plug Straight Blade Snowplows (11-Pin) ................. 15Electrical Schematic – 3-Plug MVP® Snowplows ........................................... 16Electrical Schematic – 3-Plug Straight Blade Snowplows

with Central Hydraulics ............................................................................. 17Electrical Schematic – 2-Plug MVP PLUS™ Snowplows (11-Pin) .................. 18Electrical Schematic – 2-Plug WIDE-OUT™ Snowplows (11-Pin) .................. 19Headlamp Wiring ............................................................................................. 20

TABLE OF CONTENTS

4-Port Isolation Module Systems ................................................................ 28Headlamp Index .............................................................................................. 28Theory of Operation – Overview ..................................................................... 294-Port Isolation Module System ...................................................................... 304-Port Isolation Module System – Adapter Kits .............................................. 31Confi guration Plug Instructions – 26421 ......................................................... 32Electrical Schematic – 3-Plug Straight Blade Snowplows (3-Pin) .................. 33Electrical Schematic – 3-Plug MVP Snowplows (7-Pin) .................................34Electrical Schematic – 2-Plug MVP PLUS Snowplows (11-Pin) ...................... 35Electrical Schematic – 2-Plug WIDE-OUT Snowplows (11-Pin) ..................... 36Headlamp Wiring ............................................................................................. 37

Relay System ................................................................................................. 47Relay System – Headlamp Index .................................................................... 47Relay System – Electrical Connectors ............................................................ 497-Pin Harness .................................................................................................. 50Electrical Schematic – 9-Pin Vehicle Harness – Revision 10 and Later ......... 53Electrical Schematic – 9-Pin Vehicle Harness – Revision 1–9 .......................549-Pin Harness ................................................................................................. 55Electrical Schematic – 12-Pin Vehicle Harness – Revision 8 and Later ......... 71Electrical Schematic – 12-Pin Vehicle Harness – Revision 1–7 ..................... 7212-Pin Harness ................................................................................................ 73MVP Electrical Schematic ............................................................................... 87MVP Electrical Schematic – For 2003 GM and Dodge ................................... 88Wiring Diagram – 61185 Park or Turn Harness Kit ......................................... 89Electrical Legend and Wire Colors ..................................................................90


4

INTRODUCTION

The purpose of this book is to provide the trained mechanic with a comprehensive reference to assist in diagnosis and repair of WESTERN® snowplow electrical systems. It contains schematics, diagrams and charts which supply information for the various types of vehicle and plow headlamp systems. Although intended primarily as a diagnostic tool for headlamp systems, the hydraulic system circuitry is also included to show the complete electrical system.

EARLY REVISION VEHICLE HARNESSES (RELAY SYSTEM)

All 9- and 12-pin vehicle harnesses are labeled with a white tag indicating the harness part number and revision level. Early 9-pin harness revisions 1–9 and 12-pin harness revisions 1–7 have a ground circuit in which the control, motor relay, and headlamp relays all ground through the 9- or 12-pin connector. Some of these early revision harnesses also have a diode in the ground wire to the headlamp relays. Complete 9- and 12-pin system schematics showing this early revision ground confi guration are included in the relay section of the book. These schematics are for early revision harnesses using only the solenoid control. If a handheld control has been installed, the ground circuit has been modifi ed into the later revision confi guration, in which only the headlamp relays ground through the 9- or 12-pin connector and the control and motor relay ground separately to the battery. Early revision harnesses may be easily identifi ed by a single black/orange wire on one of the motor relay primary terminals which does not continue on to the negative battery terminal. All vehicle side schematics in this book show only the later revision circuitry.

GROUNDS AND COMMONS

Notice that "ground" on the harness connectors may be referred to as "common". Most domestic vehicles use a high side drive headlamp system in which power is supplied by the switch to either headlamp. The headlamps have a common connection to ground. Some import vehicles as well as 1999 to 2002 Chevrolet/GMC, Dodge use a low side drive headlamp system in which power is supplied to the common connection of the headlamps. Ground is supplied to either headlamp by the switch.

Whether the terminal in the headlamp harness is actually a negative ground or a positive 12-volt common depends on what type of vehicle headlamp system it is installed into. Prior to the publication of this book, all Western Products electrical schematics showed "ground" whether or not it was a true ground or a 12-volt common. Some of these early schematics appear in this book. Newer schematics of low side drive systems will show the more accurate term "common" where appropriate.

HOW TO USE THIS BOOK

Use the information in the Headlamp Index to locate the electrical schematic for the vehicle. All headlamp harnesses are tagged with the harness part number. The schematic is an abstract drawing showing the purpose of each component in the system. Where possible, component locations are indicated by enclosures on the schematic. The Lamp Type, Wire Color and Connector Identifi cation charts and diagrams will give specifi c wire colors, their function and locations in connectors. Any special notes are found in the upper right corner of the schematic. Further information and a specifi c troubleshooting guide may be found in the appropriate Mechanic's Guides.

The 9- and 12-pin Vehicle Side schematics (relay system) contain all vehicle headlamp and harness types. The 7-pin Vehicle Side Schematics show only a few representatives applications. For other 7-pin vehicle headlamp and harness types, refer to the corresponding 9-pin Vehicle Side schematic and use only the headlamp circuitry.

PREFACE


5

LAMP TYPES AND HARNESS CONNECTORS

NOTE: The lamp type is usually embossed in the headlamp lens.

NOTE: Blue ground wires may be LT or DK BLU, w/ or w/o WHT stripe, depending on harness.

HIGHGROUND

LOW

HB1

LOWGROUND

BLU

E (G

ND

)O

RA

NG

E (L

OW

)R

ED

(HIG

H)

YE

LLO

W (l

OW

)B

LUE

(GN

D)

GR

EE

N (H

IGH

)

LOWGROUND

HIGH

GR

OU

ND

HIG

H

LOW

2E

BLU

E (G

ND

)

OR

AN

GE

(LO

W)

RE

D (H

IGH

)

YE

LLO

W (L

OW

)

GR

EE

N (H

IGH

)

BLU

E (G

ND

)

HB2, 2B/2D

GROUND

LOW

GROUND

HIGH

BLU

E (G

ND

)O

RA

NG

E (L

OW

)R

ED

(HIG

H)

GR

EE

N (H

IGH

)Y

ELL

OW

(LO

W)

BLU

E (G

ND

)

BLU

E (G

ND

)G

RE

EN

(HIG

H)

YE

LLO

W (L

OW

)

RE

D (H

IGH

)O

RA

NG

E (L

OW

)

BLU

E (G

ND

)

RE

D (H

IGH

)

BLU

E (G

ND

)

LOW

HIGH

GROUND1A/2A

GROUND

HIGH

HIGH LOW

COMMON

LOW

H13

OR

AN

GE

(LO

W)

GR

EE

N (H

IGH

)B

LUE

(CO

MM

ON

)

LT B

LUE

(CO

MM

ON

)R

ED

(HIG

H)

YE

LLO

W (L

OW

)

BLU

E (G

ND

)

RE

D (H

IGH

)

BLU

E (G

ND

)O

RA

NG

E (L

OW

)

YE

LLO

W (L

OW

)B

LUE

(GN

D)

BLU

E (G

ND

)G

RE

EN

(HIG

H)

OR

AN

GE

(LO

W)

RE

D (H

IGH

)

YE

LLO

W (L

OW

)

GR

EE

N (H

IGH

)

BLU

E (G

ND

)

BLU

E (G

ND

)

GR

EE

N (H

IGH

)B

LUE

(GN

D)

YE

LLO

W (L

OW

)B

LUE

(GN

D)

YE

LLO

W (L

OW

)

BLU

E (G

ND

)

BLU

E (G

ND

)R

ED

(HIG

H)

RE

D (H

IGH

)

OR

AN

GE

(LO

W)

YE

LLO

W (L

OW

)

GR

EE

N (H

IGH

)

BLU

E(C

OM

MO

N 1

2V)

BLU

E o

r PIN

K(C

OM

MO

N 1

2V)

BLU

E(C

OM

MO

N 1

2V)

BLU

E(C

OM

MO

N 1

2V)

DK

BLU

E (H

IGH

)

DK

BLU

E (H

IGH

)

DK

BLU

E(C

OM

MO

N 1

2V)

DK

BLU

E (L

OW

)D

K B

LUE

(CO

MM

ON

12V

)

DK

BLU

E (L

OW

)D

K B

LUE

(CO

MM

ON

12V

)

DK

BLU

E(C

OM

MO

N 1

2V)

HB-3 / HB-4 HB-5 LF / UF

LOWGROUND

HIGH

LOWGROUND

HIGH

HIGH

GROUND

LOW LOWGROUND

LOW GROUNDHIGHGROUNDHIGH

COMMON (12V)

HIGH

LOW

HIGH COMMON(12V)

LOW

HB-3 / HB-4(Lowside Drive System)

COMMON (12V)

HIGH

LOW

HIGHCOMMON(12V)

LOW

HB-3 / H11

HeadlampType

BulbType

HeadlampType

BulbType

LF H4703 H13 9008UF H4701 HB-1 90041A1 H4851 HB-2 90032A1 H4652 (GMC/Chevy) HB-3 90052A1 H4656 (Mitsubishi) HB-4 90062B1 H6054 HB-5 90072D1 H6024 H11 H112E1 H6545


6

4-PORT & 3-PORT ISOLATION MODULE – ELECTRICAL CONNECTORS – 3-PLUG SYSTEMS

1 2 3 4 5 6

7 8 10 119

Plow (End View)

(Sockets)

1 2 3 4 5 6

7 8 10 119

Plow (End View)

(Sockets)

Plow (End View)

1 2 3 4 5 6

7 8 10 119

(Pins)

Plow Control Harnesses

Plow Lighting Harness

Solenoid Control Connectors

MVP® Blade Control Connectors

Control Side(end view)

(pins)

123

54

6

148

12

37

1114

(Front View)

123

54

6

Vehicle Side(end view)

(sockets)

MVP Blade to Straight Blade Adapter Kit PN 66760K

Pin No. Solenoid Control Wire Color Only1 White2 Green3 Brown4 Black5 Blue6 Red

Pin No. Wire Color Control Function1 Red/Yellow +12V2 Light Green Valve S23 Orange/Black Ground4 Brown/Red Motor Relay5 Light Blue Valve S36 White/Yellow Valve S1

Pin No. Wire Color1 Light Blue w/Orange Stripe2 Blue w/Orange Stripe3 Black w/White Stripe4 Light Green5 Light Blue6 White w/Yellow Stripe7 Brown w/Red Stripe8 Red w/Yellow Stripe9 Orange w/Black Stripe10 Brown w/Green Stripe

3-PinPin No. Wire Color Control Function

1 — —2 — —3 Light Blue Valve S34 Light Green Valve S25 — —6 — —7 — —8 — —9 White/Yellow Valve S110 — —11 — —


1 Black/White Valve S42 — —3 Light Blue Valve S24 Light Green Valve S35 — —6 Red +12V7 — —8 Blue/Orange Valve S59 White/Yellow Valve S110 Lt Blue/Orange Valve S611 — —


1 Black/White PS Low Beam2 Black/Orange Ground3 White/Yellow PS High Beam4 White DS High Beam5 Blue/Orange PS Common6 Black DS Low Beam7 Black/Orange Ground8 Gray Left Directional9 Purple Right Directional10 Brown Parking Lights11 Light Blue DS Common


7

4-PORT & 3-PORT ISOLATION MODULE – ELECTRICAL CONNECTORS – 2-PLUG SYSTEMS

1

2

4

3

Plow (End View)

(Sockets)

Plow (End View)

1 2 3 4 5 6

7 8 10 119

(Pins)

Multiplex Harnesses

Plow Lighting Harness

Solenoid Control Connectors

Control Side(end view)

(pins)

1

4

2

3

4

Vehicle Side(end view)

(sockets)

2 1

3

Pin No. Solenoid Control Wire Color Only1 Red2 Green3 White4 Black

Pin No. Wire Color Control Function1 Red +12V2 Red Signal3 Black Signal4 Black Ground


1 Red +12V2 Black Ground3 Tan Signal4 White Signal


1 Black/White PS Low Beam2 Black/Orange Ground3 White/Yellow PS High Beam4 White DS High Beam5 Blue/Orange PS Common6 Black DS Low Beam7 Black/Orange Ground8 Gray Left Directional9 Purple Right Directional10 Brown Parking Lights11 Light Blue DS Common


8

IN-LINE ADAPTER INSTRUCTIONS – 28027-2

CAUTIONThis adapter is required for vehicles equipped with a 4-headlamp lighting system that illuminates the low and high beams when in high-beam mode. This adapter prevents the low beams on the snowplow from illuminating when placed in high beam.

GRN

YEL

YEL

ORN

GRN

GR

N

ORN Right LowBeam Relay

85

30

8687A

87

87

8586

30

87A

BLK

BLK

In-Line Adapter Relay Connections

Left LowBeam Relay

Terminals shown at 87 are used as insulators to prevent a circuit failure when relay is energized.

To NE

GA

TIVE

(–)B

attery Terminal

1 2 3 4

Vehicle ControlHarness

Plug-InHarnesses

Vehicle Lighting Harness

To NEGATIVE (–)Battery Terminal


In-Line AdapterIn-Line Adapter

Plug-InHarness

To NEGATIVE (–)Battery Terminal


9

VEHICLE LIGHTING HARNESS – 11-PIN

BLK

BRNLTBLU

PURGRYBLK/ORN

WHTBLU/ORN

WHT/YEL BLK/ORNBLK/WHT

LEFT HIGH BEAM OUT

LEFT TURN OUT

MODULE COM INRIGHT HIGH BEAM OUT

RIGHT TURN OUT

LEFT LOW BEAM OUT

RIGHT LOW BEAM OUT

GRY

A

PUR

JK

E

GH

F

CD

B

WHT/YEL

LTBLUBRN

BLU/ORN

WHTBLK

1011

6

89

7

54321

11-Pin Molded Plugs

BLK/WHT

BLK/ORN

PARK LAMP OUTLEFT HEADLAMP COMRIGHT HEADLAMP COM

BLK

/OR

N

4 4

65

65

1

32

1

32

RT LOW RELAY ASSEMBLY

K2

LT LOW

2

1

45

4

3

K1

5

1

2

44

3

SPLICESPLICE

BLK/WHT

BLK/ORNWHT

BLK

BLKBLK/WHT

Vehicle Lighting Harness – 11-Pin(PN 29861)

Relay Assembly (PN 29859)


10

Pages Headlamp Type Harness Kit Harness Part #

20 HB-3/HB-4 29048 28253

21 H13 29049 28986

22 HB-1 or HB-5 29050 28930

23 2B/2D or HB-2 29051 28464

24 HB-3/HB-44-Pin Connectors 29052 28924

252B/2D or 1A/2A

5-Pin Connectors29053 29058

262B/2D

7-Pin Connectors29054 29270

27 HB-3/H11 29400-2 29499

3-PORT ISOLATION MODULE – HEADLAMP INDEX


11

Overview

The Isolation Module acts as an electrical hub, automatically directing vehicle power to the appropriate vehicle or snowplow lighting devices, while also supplying battery power to the snowplow control.

The vehicle high and low beams enter and exit the Isolation Module through positions B (left side lighting) and position C (right side lighting). Park, turn, and DRL signals also enter through positions B and C.

The output of the vehicle high beam/low beam select switch is directed to

the Isolation Module via the plug-in harness. When the snowplow is not attached to the vehicle, the signal passes through the normally closed relay contacts to the vehicle headlamps. During this time, the Isolation Module is inactive, placing no current draw on the vehicle's electrical system.

With the snowplow attached, the Isolation Module is still inactive until either of the two following conditions are met: the vehicle parking lights are turned ON or the vehicle ignition switch is turned ON.

Turning ON the vehicle parking lights activates a series of relays, automatically transferring the vehicle high and low beams to the snowplow while supplying battery power directly to the snowplow parking lights. All snowplow lighting exits the Isolation Module through position A.

Turning ON the vehicle ignition switch energizes a snowplow control relay, supplying vehicle battery power directly to the control via the vehicle control harness and plug-in harness. The vehicle ignition switch also supplies power to the vehicle turn signals. Activating the vehicle turn signals energizes turn signal circuit, which supply vehicle battery power directly to the snowplow turn signals.

NOTE: References to "Left" and "Right" are correct for modules located on the driver's side of the vehicle. The reversible turn signal plug must be reversed for passenger-side installations.

Turn Signal Configuration Plug

Driver-Side Module Passenger-Side Module

GRN GRN

BLU BLU

BLU GRN

GRN BLU

3-PORT ISOLATION MODULE – THEORY OF OPERATION


12

White Label Non-DRL Module(PN 29060)

Snowplow not attached to vehicle:

System is inactive. Vehicle lighting system functions normally. Reason: No ground to module.

Snowplow attached to vehicle:

System is inactive until either the switched accessory wire or the vehicle parking lights are activated. Vehicle and snowplow lighting systems function as outlined in the Theory of Operation Overview. Reason: ground path is established from battery common to Pin C on Port A of the 3-port module via the following harnesses: vehicle battery cable, vehicle control harness, adapter, plug-in harness, vehicle lighting harness and snowplow lighting harness.

• Activating a switched accessory wire (a key-controlled power source) applies battery voltage to the VACC input of the module, which energizes the coil of the control power relay (part of the 3-port module). Energizing the coil of the control power relay causes the relay contacts to shift from the "N.O." (normally opened) position to the "N.C." (normally closed) position, which supplies battery voltage to the snowplow control via the plug-in harness and the vehicle control harness. The switched accessory wire only controls battery voltage to the snowplow control.

• Activating the vehicle park light circuit applies battery voltage to the module park circuit input. The voltage is applied to a solid state power device, which causes the device to turn ON and apply battery voltage to the snowplow park lamp fi laments via the vehicle and snowplow lighting harnesses. Voltage is also applied to the module's high and low beam relay coils, which causes the relay contacts to shift from the "vehicle" to the "snowplow" position.

• With the four headlamp relays shifted to the "snowplow" position, the vehicle high and low beams are now directed to the snowplow headlamps via the vehicle and snowplow lighting harnesses. Toggling the dimmer switch between high and low beam will toggle the snowplow high and low beams.


• Activating the turn signal applies battery voltage to the module turn signal circuit input. The voltage is applied to a solid state power device, which causes the device to turn ON and apply battery voltage to the snowplow turn signal lamp fi laments via the vehicle and snowplow lighting harnesses.

• On vehicles equipped with DRLs—either integrated into the vehicle headlamps or separated into dedicated DRL lamps—this module will not turn OFF the vehicle DRLs or transfer them to the snowplow. DRLs will remain on the vehicle and operate as the vehicle manufacturer intended.


13

Green Label DRL Module(PN 29070)





• Activating a switched accessory wire (a key-controlled power source) applies battery voltage to the VACC input of the module. A control circuit senses the voltage and energizes the coil of the control power relay (part of the 3-port module). Energizing the coil of the control

power relay causes the relay contacts to shift from the "N.O." (normally opened) position to the "N.C." (normally closed) position, which supplies battery voltage to the snowplow control via the plug-in harness and the vehicle control harness. The switched accessory wire only controls battery voltage to the snowplow control.

• Activating the vehicle park light circuit applies voltage to the module park circuit input. A control circuit senses the voltage and turns ON a solid state power device, which applies battery voltage to the snowplow park lamp fi laments via the vehicle and snowplow lighting harnesses.

• With the park light circuit energized, the control circuit monitors the vehicle high and low beam inputs. When battery voltage is sensed, the appropriate solid state power devices are turned ON, supplying battery voltage to the snowplow headlamps via the vehicle and snowplow lighting harnesses. Toggling the dimmer switch

between high and low beam will toggle the snowplow high and low beams.

• Activating the turn signal applies voltage to the module turn signal circuit input. A control circuit senses the voltage and turns ON a solid state power device, which applies battery voltage to the snowplow turn signal lamp fi laments via the vehicle and snowplow lighting harnesses.

• PN 29070 Only: On vehicles equipped with DRLs—either integrated into the vehicle headlamps or separated into dedicated DRL lamps—this module will not turn OFF the vehicle DRLs. The control circuit monitors the voltage level supplied by the vehicle to the vehicle high and low beams as well as the dedicated DRL inputs. When a lower voltage is sensed on either the high or low beam inputs or battery voltage is sensed on the turn signal or dedicated DRL inputs, the control circuit turns ON the snowplow

turn signal fi laments to operate as DRLs.

• PN 29070-1 Only: On vehicles equipped with DRLs integrated into the vehicle headlamps. Activation of the switched accessory wire (a key-controlled power source) Port C, Position C, applies battery voltage to the module's high and low beam relay coils, which causes the relay contacts to shift from the "vehicle" to the "snowplow" position. This module will transfer the vehicle headlamp DRLs to the snowplow (turns off vehicle DRLs).

• On vehicles equipped with dedicated DRL bulbs or vehicles using the turn signals as DRLs, this module will not turn OFF the vehicle bulbs. While the vehicle is in the DRL mode, this module will illuminate the snowplow light turn signal fi laments.



14

Blue Label DRL Module(PN 29760-1)





• Activating a switched accessory wire (a key-controlled power source) applies battery voltage to the VACC input of the module, which energizes the coil of the control power relay (part of the 3-port module). Energizing the coil of the control power relay causes the relay contacts to shift from the "N.O." (normally opened) position to the "N.C." (normally closed) position, which supplies battery voltage to the snowplow control via the plug-in harness and the vehicle control harness.

• Activating the vehicle park light circuit applies battery voltage to the module park circuit input. The voltage is applied to a solid state power device, which causes the device to turn ON and apply battery voltage to the snowplow park lamp fi laments via the vehicle and snowplow lighting harnesses. Voltage is also applied to the module's high and low beam relay coils, which causes the relay contacts to shift from the "vehicle" to the "snowplow" position.

• With the four headlamp relays shifted to the "snowplow" position, the vehicle high and low beams are now directed to the snowplow headlamps via the vehicle and snowplow lighting harnesses. Toggling the dimmer switch between high and low beam will toggle the snowplow high and low beams.

• Activating the turn signal applies battery voltage to the module turn signal circuit input. The voltage is applied to a solid state power device, which causes the device to turn ON and apply battery voltage to the snowplow turn signal lamp fi laments via the vehicle and snowplow lighting harnesses.

• On vehicles equipped with DRLs integrated into the vehicle headlamps, activating a switched accessory wire (a key-controlled power source) applies battery voltage to the module's high and low beam relay coils, which causes the relay contacts to shift from the "vehicle" to the "snowplow" position. This module will transfer the vehicle DRLs to the snowplow.



15

3-PORT ISOLATION MODULE – ELECTRICAL SCHEMATIC

3-PLUG STRAIGHT BLADE SNOWPLOWS (11-PIN)

NOTE: Labeling shown (left and right) is correct for modules located on the driver's side of the vehicle. The reversible turn signal plug must be reversed for passenger-side installations.


16

3-PLUG MVP® SNOWPLOWS

BLK

BRNLTBLU

PURGRYBLK/ORN

WHTBLU/ORN

WHT/YELBLK/ORNBLK/WHT

3 PORT MODULE

HIGH BEAM IN

DRL IN

LOW BEAM OUT

LOW BEAM IN

SWITCHED VACC INHIGH BEAM OUT

MODULE POWER IN

COM

LEFT HIGH BEAM OUT

LEFT TURN OUT


RIGHT TURN OUT

LEFT LOW BEAM OUT

RIGHT LOW BEAM OUT

GRY

A

PUR

JK

E

GH

F

CD

B

WHT/YEL

LTBLUBRN

BLU/ORN

WHTBLK

1011

6

89

7

54321

A DCB

SWV-DC

ACC-CC12VCOM

11 PIN MOLDED PLUGS

TURN-VA

LOW-VACOM-VJ

COM-BK

HIGH-VB

HIGH-CD

LOW-AE

LOW-VACOM-VJ

COM-BK

HIGH-VB

PARK-VH

HIGH-CD

LOW-AE

TURN-VB

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

BLK/WHT

BLK/ORN

TURN IN

COM

CONTROL PWR OUT

LOW BEAM OUTHIGH BEAM OUT

COMCOMPARK LAMP INTURN INCONTROL POWER IN

HIGH BEAM INLOW BEAM IN


B

C

SWV-DC

F1TURN-BGPARK-VH

PLOW LIGHTS

HIGH-4CCOM-11B

TURN-8B

PARK

COM

LOW-6A

PARK

COMTURN-9B

HIGH-3C

LOW-1ACOM-5B

PLOW LIGHTINGHARNESS, 11 PIN

COM

COM-5B

HIGH-3CCOMLOW-1A

HIGH-4C

TURN-8B

PARKCOM-11B

TURN-9B

LOW-6A

4

8

1011

9

67

5

23

1

VEHICLE LIGHTINGHARNESS, 11 PIN

PLUG-IN HARNESS(H13 HARNESS SHOWN) F1

F1 & F210 AMP MINISTYLE FUSES

F2

SP112V12V

A

BLK/

ORN

LOW-VAHIGH-VB

HIGH-CDLOW-AEF2TURN-AG

COM-BJCOM-BK

DRL-VH

ACC-CC

HIGH-VBLOW-VA

HIGH-CDLOW-AE

COM-BJCOM-BK

HIGHLOWBEAM

PARKTURN

HIGHLOWBEAM

TURNPARK

REVERSABLE TURNSIGNAL PLUG

NOTE:LABELING SHOWN, LEFT AND RIGHT,IS CORRECT IF THE MODULE ISLOCATED ON THE DRIVER'S SIDE OFTHE VEHICLE.A REVERSIBLE TURN SIGNAL PLUG ISPROVIDED TO COMPENSATE FOR THELEFT OR RIGHT SIDE MODULEMOUNTING REQUIREMENTS.

NEG.

PUMP MOTOR S3

S2

POS.

S1

LTGRN44LTGRN

WHT/YEL8 8

11 11

910

910

667 7

5 5

WHT/YEL

LTBLU23

23

1 1

LTBLU

BLK/

ORN BATTERY

-

RED/GRN

VEHICLE CABLE ASSEMBLY

BATTERY CABLE 22"

+ MOTOR RELAY

A ABC C

B

15A

A B

BRN/GRN

WHT/YEL

RED

12

1011

BRN/RED

BLK/ORNRED/YEL 8

9

7

TO SWITCHEDACCESSORY LEAD

ORNWHT

BLU

YEL

GRYVIO

BLK/ORNBLK/ORN

BLK/ORN BLK/ORN EF

HJ

G

D

KDKBLU/WHT

RED/GRN

RED/YELRED

29047ADAPTER

DKBLU/REDBLU

K

HJ

FG

ED

(BLUE WIRES)

(GREEN WIRES)

3 3

5 56 6

4 4

12

12

1314

789

1011121314

99

111110 10

87

87

65

65

22

43

43

1 1

BLKBRNTANREDGRN

1110987654321

S6

S5

S4

RED

BLK/WHT

BLU/ORN

LTBLU/ORN

BLK/WHT

BLK/WHT

LTBLULTGRN

RED/YEL

BLU/ORN

BLU/ORN

LTBLU/ORN

LTBLU/ORN

BRN/GRN

BA C D

7.5A

BA

VEHICLE CONTROLHARNESS, 7 PIN7 PIN MOLDED PLUGS

CONTROL

RED/GRN

RED/WHTRED/BLK

RED/YELRED




17

BLK

BRNLTBLU

PURGRYBLK/ORN

WHTBLU/ORN


3 PORT MODULE

HIGH BEAM IN

DRL IN

LOW BEAM OUT

LOW BEAM IN


MODULE POWER IN

COM

LEFT HIGH BEAM OUT

LEFT TURN OUT


RIGHT TURN OUT

LEFT LOW BEAM OUT

RIGHT LOW BEAM OUT

GRY

A

PUR

JK

E

GH

F

CD

B

WHT/YEL

LTBLUBRN

BLU/ORN

WHTBLK

1011

6

89

7

54321

A DCB

SWV-DC

ACC-CC12VCOM

11 PIN MOLDED PLUGS

TURN-VA

LOW-VACOM-VJ

COM-BK

HIGH-VB

HIGH-CD

LOW-AE

LOW-VACOM-VJ

COM-BK

HIGH-VB

PARK-VH

HIGH-CD

LOW-AE

TURN-VB

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

BLK/WHT

BLK/ORN

TURN IN

COM

CONTROL PWR OUT


COMCOMPARK LAMP INTURN INCONTROL POWER IN



B

C

SWV-DC

F1TURN-BGPARK-VH

PLOW LIGHTS

HIGH-4CCOM-11B

TURN-8B

PARK

COM

LOW-6A

PARK

COMTURN-9B

HIGH-3C

LOW-1ACOM-5B

PLOW LIGHTINGHARNESS, 11 PIN

COM

COM-5B

HIGH-3CCOMLOW-1A

HIGH-4C

TURN-8B

PARKCOM-11B

TURN-9B

LOW-6A

4

8

1011

9

67

5

23

1

VEHICLE LIGHTINGHARNESS, 11 PIN

PLUG-IN HARNESS(H13 HARNESS SHOWN) F1

F1 & F210 AMP MINISTYLE FUSES

F2

SP112V12V

A

BLK/

ORN

LOW-VAHIGH-VB

HIGH-CDLOW-AEF2TURN-AG

COM-BJCOM-BK

DRL-VH

ACC-CC

HIGH-VBLOW-VA

HIGH-CDLOW-AE

COM-BJCOM-BK

HIGHLOWBEAM

PARKTURN

HIGHLOWBEAM

TURNPARK

REVERSABLE TURNSIGNAL PLUG

NOTE:LABELING SHOWN, LEFT AND RIGHT,IS CORRECT IF THE MODULE ISLOCATED ON THE DRIVER'S SIDE OFTHE VEHICLE.A REVERSIBLE TURN SIGNAL PLUG ISPROVIDED TO COMPENSATE FOR THELEFT OR RIGHT SIDE MODULEMOUNTING REQUIREMENTS.

RED/GRN

RED TO SWITCHEDACCESSORY LEAD

BLK/ORN

BLK/

ORN

RED/GRN

RED/YELRED

29047ADAPTER

DBA C

(BLUE WIRES)

(GREEN WIRES)

BRN/RED

BRN/GRNRED

K J H CEG F D AB

K J H CEG F D AB

B

7.5A

A B A

15A

ORANGECONTROL POWERIF NEEDED

BATTERY

-+

VEHICLE CONTROL HARNESS26498

RED/WHT

RED/BLK

CONFIGURATION PLUG IS NOTREQUIRED WITH 3-PORTLIGHTING MODULES

3-PLUG STRAIGHT BLADE SNOWPLOWSWITH CENTRAL HYDRAULICS




18

2-PLUG MVP PLUS™ SNOWPLOWS (11-PIN)

321

4321

4

4-Pin Plug(Under Dash)

REDRED

BLKBLK

GRNRED

WHTBLK

Control

RED To Switched Accessory Lead

Vehicle Control Harness, 4 Wire

1 – Red2 – Green3 – White4 – Black

1 – Red (Control Power)2 – Red (Twisted with #3)3 – Black (Twisted with #2)4 – Black (Control Ground)

4

2

3

1

4

2

3

1

(connector face view)

Vehicle Battery Cable, 4 Receptacle

BLK

BLK

RE

D

BA C D

WH

T

RED RED

C C

AB

AB

DD BLK

TA

N

PlowLightingHarness,

11 PinTURNPARK COM

HIGHLOWBEAM

PARKTURN

HIGHLOWBEAM

LOW-6A

TURN-8B

COM-11B

PARK

HIGH-4C

C

ABB

C

ABB

C

AB

C

AB

COM-5BLOW-1A

HIGH-3C

TURN-9BPARK

COM

TURN-9B

COM-11BPARK

LOW-6A

TURN-8B

COM-5B

COM

HIGH-4C

LOW-1A

HIGH-3CCOM

8

11109

7

56

34

12

Plow Module

WHTTAN

BLK

BLK

RED

4 Amp Fuse: S1, S2, S34 Amp Fuse: Motor Relay

4 Amp Fuse: S4, S5, S6, S74 Amp Fuse: S8, S9, S10, S11

–PumpMotor

RED

RE

D

MotorRelay

S1

S2

S3

BLKRED

REDWHT

GRN

BLURED

AG

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

B

S10

S9

S8

S11

S7

S6

GRY

RED

WHT

GRN

ORN

REDBRN

YEL

S4

S5 BLK

TAN

BBA

CA

HH

DC

FG

EEDC

FG

KJK

J

Battery+

+–

RED BLK

RE

D

Located at Front of Vehicle

Snowplow Assembly

Passenger-Side Plow Headlamp

Driver-Side Plow Headlamp BLK

BRNLTBLU

PURGRY

BLK/ORN

WHTBLU/ORN


LOW-VACOM-VJ

COM-BK

HIGH-VB

PARK-VH

HIGH-CD

LOW-AE

TURN-VB

TURN-VA

LOW-VACOM-VJ

COM-BK

HIGH-VBHIGH-CD

LOW-AE

AC

C-C

CS

WV

-DC

12V

CO

M

GRYPUR

WHT/YEL

LTBLUBRN

BLU/ORN

WHTBLK

BLK/WHT

BLK/ORN

SWV-DC

F1-BFTURN-BGPARK-VH

LOW-VAHIGH-VB

HIGH-CDLOW-AE

F2-CFTURN-AG

COM-BJCOM-BK

ACC-CC

HIGH-VBLOW-VA

HIGH-CDLOW-AE

COM-BJCOM-BK

VehicleLightingHarness,

11 Pin

Isolation Module

ReversibleTurn Signal

Plug

10 AmpControl

& ModuleFuses

TypicalPlug-In

Harness

HIGH BEAM IN

DRL IN

LOW BEAM OUT

LOW BEAM IN


MODULE POWER IN

COM OUT

LEFT HIGH BEAM OUT

LEFT TURN OUT


RIGHT TURN OUT

LEFT LOW BEAM OUT

RIGHT LOW BEAM OUT

1011

6

89

7

54321

A DCB

TURN IN

COM IN

CONTROL PWR OUT


COM OUTCOM INPARK LAMP INTURN INCONTROL POWER IN



12V12VB

LK/O

RN

A

B

CABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK



CAUTIONOn 2-plug electrical systems, plug covers shall be used whenever snowplow is disconnected. Vehicle Battery Cable is 12-volt unfused source.


19

2-PLUG WIDE-OUT™ SNOWPLOWS

321

4321

4


REDRED

BLKBLK

GRNRED

WHTBLK

Control

RED To Switched Accessory Lead


1 – Red

2 – Green

3 – White

4 – Black

1 – Red (Control Power)

2 – Red (Twisted with #3)

3 – Black (Twisted with #2)

4 – Black (Control Ground)

4

2

3

1

4

2

3

1



BL

K

BLK

RE

D

BA C D

WH

T

RED RED

C C

AB

AB

DD BLK

TA

N

PlowLighting Harness,

11 PinTURN PARK COM

HIGH LOW BEAM

PARK TURN

HIGH LOW BEAM

LOW-6A

TURN-8B

COM-11B

PARK

HIGH-4C

C

A

BB

C

A

BB

C

AB

C

AB

COM-5BLOW-1A

HIGH-3C

TURN-9B

PARK

COM

TURN-9B

COM-11BPARK

LOW-6A

TURN-8B

COM-5B

COM

HIGH-4C

LOW-1A

HIGH-3CCOM

8

11109

7

56

34

12

Battery

+–

RED BLK


Snowplow Assembly

Passenger-Side Plow Lamp

Driver-Side Plow Lamp BLK

BRNLTBLU

PURGRY

BLK/ORN

WHTBLU/ORN


LOW-VACOM-VJ

COM-BK

HIGH-VB

PARK-VH

HIGH-CD

LOW-AE

TURN-VB

TURN-VA

LOW-VACOM-VJ

COM-BK

HIGH-VBHIGH-CD

LOW-AE

SW

V-D

CA

CC

-CC

12V

CO

M

GRYPUR

WHT/YEL

LTBLUBRN

BLU/ORN

WHTBLK

BLK/WHT

BLK/ORN

SWV-DC

F1-BFTURN-BGPARK-VH

LOW-VAHIGH-VB

HIGH-CDLOW-AEF2-CF

TURN-AG

COM-BJCOM-BK

ACC-CC

HIGH-VBLOW-VA

HIGH-CDLOW-AE

COM-BJCOM-BK

VehicleLighting Harness,

11 Pin

Isolation Module

ReversibleTurn Signal

Plug

10 Amp Control

& Module Fuses

TypicalPlug-In

Harness

HIGH BEAM IN

DRL IN

LOW BEAM OUT

LOW BEAM IN


MODULE POWER IN

COM OUT

LEFT HIGH BEAM OUT

LEFT TURN OUT


RIGHT TURN OUT

LEFT LOW BEAM OUT

RIGHT LOW BEAM OUT

1011

6

89

7

54321

A DCB

TURN IN

COM IN

CONTROL PWR OUT


COM OUTCOM INPARK LAMP INTURN INCONTROL POWER IN



12V

12VBLK

/OR

NA

B

CABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

ABCDEFGHJK

Plow Module

–Pump Motor

Motor Relay

S1

S2

A

B

S10

S9

S8

S7

S6

RED

RED

BLK

BLK

RED

RED

DKBLU

DKGRN

GRY

BRN

YEL

BLK

RED

REDWHT

WHT

RED

TANWHT

S5

C

+

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

4 Amp Fuse: S5, S6, S7, S84 Amp Fuse: S9, S10

4 Amp Fuse: S1, S2, Motor Relay

4 Amp Fuse: Sense

NOTE: Labeling shown (left and right) is correct for modules located on the driver side of the vehicle. The reversible turn signal plug must be reversed for passenger-side installations.




20

HEADLAMP WIRING – 29048 HARNESS KITS (HB-3/HB-4)

Harness Part #28253

Location Wire Color StampBlack Female Plug

A DK BLUE COM-AJB DK BLUE HIGH-BB

2-Key Male PlugA DK BLUE HIGH-ADB DK BLUE COM-BK

Gray Female PlugA DK BLUE COM-BAB DK BLUE LOW-BA

1-Key Male PlugA DK BLUE LOW-AEB DK BLUE COM-BA

Splice Tap WiresLoose DK BLUE TURN-VA

10-Position Plug "C"A DK BLUE LOW-BAB DK BLUE HIGH-BBC RED ACC-CCD DK BLUE HIGH-ADE DK BLUE LOW-AEF RED F2-CFG DK BLUE TURN-AGH DK BLUE DRL-VHJ DK BLUE COM-AJK DK BLUE COM-BK

Harness Part #28253

Location Wire Color StampBlack Female Plug

A DK GREEN COM-AJB DK GREEN HIGH-BB

2-Key Male PlugA DK GREEN HIGH-ADB DK GREEN COM-BK

Gray Female PlugA DK GREEN COM-BAB DK GREEN LOW-BA

1-Key Male PlugA DK GREEN LOW-AEB DK GREEN COM-BA

Splice Tap WiresLoose DK GREEN TURN-VBLoose DK GREEN PARK-VHLoose DK BLUE DRL-VH

10-Position Plug "B"A DK GREEN LOW-BAB DK GREEN HIGH-BBC RED SWV-DCD DK GREEN HIGH-ADE DK GREEN LOW-AEF RED F1-BFG DK GREEN TURN-BGH DK GREEN PARK-VHJ DK GREEN COM-AJK DK GREEN COM-BK

2-Key Male Plug

Black Female Plug

10-Position Plugfor Harness #28253

Plugs for Harness #28253

1-Key Male Plug

Gray Female Plug


21

HEADLAMP WIRING – 29049 HARNESS KIT (H13)

Harness Part #28986

Location Wire Color StampFemale Plug

A DK BLUE LOW-AEB DK BLUE COM-BKC DK BLUE HIGH-CD

Male Plug A DK BLUE LOW-AA B DK BLUE COM-BJ C DK BLUE HIGH-CB


10-Position Plug "C"A DK BLUE LOW-AAB DK BLUE HIGH-CBC RED ACC-CCD DK BLUE HIGH-CDE DK BLUE LOW-AEF RED F2-CFG DK BLUE TURN-AGH — —J DK BLUE COM-BJK DK BLUE COM-BK

Harness Part #28986


A DK GREEN LOW-AEB DK GREEN COM-BJC DK GREEN HIGH-CD

Male Plug A DK GREEN LOW-AA B DK GREEN COM-BK C DK GREEN HIGH-CB

Splice Tap WiresLoose DK GREEN TURN-VBLoose DK GREEN PARK-VH

10-Position Plug "B"A DK GREEN LOW-AAB DK GREEN HIGH-CBC RED SWV-DCD DK GREEN HIGH-CDE DK GREEN LOW-AEF RED F1-BFG DK GREEN TURN-BGH DK GREEN PARK-VHJ DK GREEN COM-BJK DK GREEN COM-2K

Male Plug

Female Plug




22

HEADLAMP WIRING – 29050 HARNESS KIT (HB-1 OR HB-5) (1A/2A1)

1Not shown. Requires adapter kit 26641.

Harness Part #28930

Location Wire Color StampBlack Molded Female Plug

1 — —2 DK BLUE COM-2J3 DK BLUE HIGH-3B4 DK BLUE LOW-4A5 — —

Blue Molded Male Plug A* DK BLUE LOW-AE B* DK BLUE COM-BK C DK BLUE HIGH-CD*Reversed for HB-1 Applications


10-Position Plug "C"A DK BLUE LOW-4AB DK BLUE HIGH-3BC RED ACC-CCD DK BLUE HIGH-CDE DK BLUE LOW-AEF RED F2-CFG DK BLUE TURN-AGH — —J DK BLUE COM-2JK DK BLUE COM-BK

Harness Part #28930

Location Wire Color StampBlack Molded Female Plug

1 — —2 DK GREEN COM-2K3 DK GREEN HIGH-3B4 DK GREEN LOW-4A5 — —

Blue Molded Male Plug A* DK GREEN LOW-AE B* DK GREEN COM-BJ C DK GREEN HIGH-CD*Reversed for HB-1 Applications


10-Position Plug "B"A DK GREEN LOW-4AB DK GREEN HIGH-3BC RED SWV-DCD DK GREEN HIGH-CDE DK GREEN LOW-AEF RED F1-BFG DK GREEN TURN-BGH DK GREEN PARK-VHJ DK GREEN COM-BJK DK GREEN COM-2K

Blue Male Plug

Black Molded Female Plug




23

HEADLAMP WIRING – 29051 HARNESS KIT (2B/2D)

Harness Part #28464


A DK BLUE COM-AKB DK BLUE LOW-BEC DK BLUE HIGH-CD

Male Plug A DK BLUE HIGH-AB B DK BLUE LOW-BA C DK BLUE COM-CJ


10-Position Plug "C"A DK BLUE LOW-BAB DK BLUE HIGH-ABC RED ACC-CCD DK BLUE HIGH-CDE DK BLUE LOW-BEF RED F2-CFG DK BLUE TURN-AGH — —J DK BLUE COM-BJK DK BLUE COM-AK

Harness Part #28464


A DK GREEN COM-AKB DK GREEN LOW-BEC DK GREEN HIGH-CD

Male Plug A DK GREEN HIGH-AB B DK GREEN LOW-BA C DK GREEN COM-CJ


10-Position Plug "B"A DK GREEN LOW-BAB DK GREEN HIGH-ABC RED SWV-DCD DK GREEN HIGH-CDE DK GREEN LOW-BEF RED F1-BFG DK GREEN TURN-BGH DK GREEN PARK-VHJ DK GREEN COM-CJK DK GREEN COM-AK

Male Plug

Female Plug




24

HEADLAMP WIRING – 29052 HARNESS KIT (HB-3/HB-4)

Harness Part #28924


A DK BLUE HIGH-ABB DK BLUE LOW-BAC DK BLUE COM-CJD DK BLUE COM-DD

Male PlugA DK BLUE HIGH-ADB DK BLUE LOW-BEC DK BLUE COM-CKD DK BLUE COM-DD


10-Position Plug "C"A DK BLUE LOW-BAB DK BLUE HIGH-ABC RED ACC-CCD DK BLUE HIGH-ADE DK BLUE LOW-BEF RED F2-CFG DK BLUE TURN-AGH — —J DK BLUE COM-CJK DK BLUE COM-CK

Harness Part #28924


A DK GREEN HIGH-ABB DK GREEN LOW-BAC DK GREEN COM-CKD DK GREEN COM-DD

Male PlugA DK GREEN HIGH-ADB DK GREEN LOW-BEC DK GREEN COM-CJD DK GREEN COM-DD


10-Position Plug "B"A DK GREEN LOW-BAB DK GREEN HIGH-ABC RED SWV-DCD DK GREEN HIGH-ADE DK GREEN LOW-BEF RED F1-BFG DK GREEN TURN-BGH DK GREEN PARK-VHJ DK GREEN COM-CJK DK GREEN COM-CK

Male Plug

Female Plug




25

HEADLAMP WIRING – 29053 HARNESS KIT (2B/2D OR 1A/2A)

Harness Part #29058


A DK BLUE HIGH-ADB DK BLUE LOW-BEC DK BLUE COM-CJD DK BLUE TURNE DK BLUE PARK

Male PlugA DK BLUE HIGH-ABB DK BLUE LOW-BAC DK BLUE COM-CKD DK BLUE TURNE DK BLUE PARK

10-Position Plug "C"A DK BLUE LOW-BAB DK BLUE HIGH-ABC RED ACC-CCD DK BLUE HIGH-ADE DK BLUE LOW-BEF RED F2-CFG DK BLUE TURN-AGH — —J DK BLUE COM-CJK DK BLUE COM-CK

Harness Part #29058


A DK GREEN HIGH-ADB DK GREEN LOW-BEC DK GREEN COM-CKD DK GREEN TURNE DK GREEN PARK

Male PlugA DK GREEN HIGH-ABB DK GREEN LOW-BAC DK GREEN COM-CJD DK GREEN TURNE DK GREEN PARK

10-Position Plug "B"A DK GREEN LOW-BAB DK GREEN HIGH-ABC RED SWV-DCD DK GREEN HIGH-ADE DK GREEN LOW-BEF RED F1-BFG DK GREEN TURN-BGH DK GREEN PARKJ DK GREEN COM-CJK DK GREEN COM-CK

Male Plug

Female Plug




26



7-Pin Male Plug7-Pin Female Plug


Harness Part #29270

Location Wire Color Stamp7-Pin Female Plug

A BLACK PARKB BLACK LOWC BLACK L TURND BLACK R TURNE BLACK HIGHF — —G BLACK COM

7-Pin Male PlugA BLACK PARKB BLACK LOWC BLACK L TURND BLACK R TURNE BLACK HIGHF — —G BLACK COM

10-Position Plug "C"A BLACK LOWB BLACK HIGHC RED ACCD — —E — —F RED F2G BLACK R TURNH — —J — —K BLACK COM

Harness Part #29270

Location Wire Color Stamp10-Position Plug "B"

A BLACK LOWB BLACK HIGHC RED SWVD BLACK HIGHE BLACK LOWF RED F1G BLACK L TURNH BLACK PARKJ BLACK COMK BLACK COM


27

HEADLAMP WIRING – 29400-2 HARNESS KITS (HB-3/H11)

Harness Part #29499

Location Wire Color StampHB-3 Female Plug

A DK BLUE COM-AJB DK BLUE HIGH-BB

HB-3 Male PlugA DK BLUE HIGH-ADB DK BLUE COM-BK

H11 Female PlugA DK BLUE COM-AAB DK BLUE LOW-BA

H11 Male PlugA DK BLUE COM-AAB DK BLUE LOW-BE


10-Position Plug "C"A DK BLUE LOW-BAB DK BLUE HIGH-BBC RED ACC-CCD DK BLUE HIGH-ADE DK BLUE LOW-BEF RED F2-CFG DK BLUE TURN-AGH DK BLUE DRL-VHJ DK BLUE COM-AJK DK BLUE COM-BK

Harness Part #29499

Location Wire Color StampHB-3 Female Plug

A DK GREEN COM-AJB DK GREEN HIGH-BB

HB-3 Male PlugA DK GREEN HIGH-ADB DK GREEN COM-BK

H11 Female PlugA DK GREEN COM-AAB DK GREEN LOW-BA

H11 Male PlugA DK GREEN COM-AAB DK GREEN LOW-BE

Splice Tap WiresLoose DK GREEN TURN-VBLoose DK GREEN PARK-VHLoose DK BLUE DRL-VH

10-Position Plug "B"A DK GREEN LOW-BAB DK GREEN HIGH-BBC RED SWV-DCD DK GREEN HIGH-ADE DK GREEN LOW-BEF RED F1-BFG DK GREEN TURN-BGH DK GREEN PARK-VHJ DK GREEN COM-AJK DK GREEN COM-BK

HB-3 Male Plug

HB-3 Female Plug



H11 Male Plug

H11 Female Plug


28

Headlamp Type Vehicle(s) Year(s) Page Isolation Module Kit #Short

Plug-inLong

Plug-inIsolation Module #

H13

Ford F-150 (New Body Style) '04–Present

4528400

28244 28242 26400

Ford Super Duty '05–PresentDodge 1500, 2500, 3500 '06–Present

Dodge Dakota '05–PresentDodge Durango '04–Present

GMC Yukon/Yukon XL (All New) '07–Present

HB-3/H11Chevy/GMC 1500/2500/3500 (All New) '07–Present 28400, 28027-2,

29420-1Toyota Tundra '07–PresentChevy/GMC Tahoe/Suburban (All New) '07–Present 42 27780, 29458, 28027-2 26351 26352 27781

HB-3/HB-4

Chevy/GMC Trailblazer/Envoy/Bravada '02–Present 44 28028 28032 28030

26400Chevy/GMC Blazer/Jimmy/S-10/Sonoma '98–Present

41

27480-1

26361 26360Chevy/GMC Colorado/Canyon (US vehicles) '04–Present

Nissan Titan '04–Present 27480-1 & 28027Chevy/GMC 1500/2500/3500 (New Body Style) '99–'02 8437-1

27781Chevy/GMC Colorado/Canyon (Canadian vehicles) '04–Present 8437-1 & 28555Chevy/GMC 1500/2500/3500/Avalanche '03–Present

42

27780

26351 26352Chevy/GMC (Classic Style) '90–'02 8438

26400

Chevy/GMC Blazer/Jimmy/S-10/Sonoma '95–'97Ford Explorer '02–Present 8438 & 28027

2B/2Dor

HB-2

Jeep '84–'02

38

8439

26356 26353

Dodge '72–'93Ford '80–Present

Chevy/GMC '73–'02Toyota '84–Present

International '89–'02 8439 & 26640

2E Chevy/GMC Blazer/Jimmy/S-10/Sonoma '95–'97 8439 & 27968 Dodge Dakota '87–'962B/2D or 1A/2A Chevy/GMC C4500/5500 '03–Present 43 27890 27885 27886

2B/2D Chevy/GMC Topkick/Kodiak 4500/5500 '90–'02 40 8443 n/a 26638HB-5/HB-1 (Quad) Dodge '99–'02 39 8442 26372 26370

HB-1or

HB-5

Dodge '91–Present

37

8436

26349 26354

Ford '80–PresentMazda '91–'94, '99–'03

Toyota 4Runner '92–'95Jeep Liberty '02–Present

Mitsubishi FG '05–Present 8436 & 28860International '03–Present 8436 & 26640

1A/2ADodge '74–'83

8436 & 26641 Chevy/GMC '73–'87Isuzu/Mitsubishi '94–'97

LF/UF Jeep Wagoneer '85–'91 45 28400 & B62225 28244 28242Chevy/GMC '88–'91

4-PORT ISOLATION MODULE – HEADLAMP INDEX


29

SNOWPLOW HEADLAMPS

The Isolation Module acts as an electrical hub, automatically directing vehicle power to the appropriate vehicle or snowplow lighting devices, while also supplying battery power to the snowplow control.

The vehicle high and low beams enter and exit the Isolation Module through positions 3 (left-side lighting) and position 4 (right-side lighting). Park, turn and DRL signals also enter through positions 3 and 4. The output of the vehicle dimmer switch is directed to the Isolation Module via the long and short plug-in harnesses.

All snowplow lighting exits the Isolation Module through position 2.

When the snowplow is not attached to the vehicle, the signal passes through the normally closed relay contacts to the vehicle headlamps. During this time, the Isolation Module is inactive, placing no current draw on the vehicle's electrical system.

With the snowplow attached, the Isolation Module is still inactive until either of the two following conditions are met: The vehicle parking lights are turned ON or the vehicle ignition switch is turned ON.

Turning ON the vehicle parking lights activates a series of relays, automatically transferring the vehicle high and low beams to the snowplow while supplying battery power directly to the snowplow parking lights.

Turning ON the vehicle ignition switch energizes a snowplow control relay, supplying vehicle battery power directly to the control via the vehicle control harness. The vehicle ignition switch also supplies power to the vehicle turn signals. Activating the vehicle turn signals energizes turn signal relays, which supply vehicle battery power directly to the snowplow turn signals.


SNOWPLOW DAYTIME RUNNING LIGHTS

Because Daytime Running Lamps (DRLs) are controlled differently on some vehicles, two Isolation Modules have been developed.

The white Isolation Module transfers the DRL output from the vehicle headlamps to the snowplow headlamps when the vehicle ignition switch is turned ON and the snowplow is attached.

The green Isolation Module, designed for vehicles with dedicated DRL bulbs, senses the vehicle in the DRL mode and a series of relays energize, placing the snowplow low beams in series. This Isolation Module does not turn OFF the vehicle's dedicated DRLs.


30

Battery Cable

ShortPlug-In Harness


Isolation Module

ConfigurationPlug

Dust Cover

4 2 13

MotorRelay

Plow BatteryCable

Plow ControlHarness

Plow LightingHarness

ToCab

Control

ConnectorVehicle BatteryCable

Vehicle ControlHarness

Motor RelayBracket

Motor RelayMounting Bracket

SnowplowSystemCable

OEM Battery Cable

Side Terminal Battery Adapter

SideTerminalBattery

Long Plug-In Harness

4-PORT ISOLATION MODULE SYSTEM


31

Cable Clamp

Adapter Kit2B to 2E

(PN 27968-1)

Plug-InAdapterw/Park

Plug-InAdapterw/o Park

Adapter KitHB-5 to HB-2(PN 28860-1)

43

ShortPlug-In

Harness

LongPlug-InHarness

Extension Harness Kit(PN 26640)

Male Female

Adapter KitHB-5 to 1A/2A(PN 26641-1)

In-Line Adapter(PN 28027-2)

Adapter Kit(PN 28555)

AE

Adapter KitHB-5

(PN 29235)

AE

Adapter Kit2B/2D

(PN 29234)

A A

Adapter KitH13 to HB-3/H11

(PN 29420-1)

Adapter KitHB-1

(PN 29056-1)

Adapter KitH13 to LF/UF

(PN B62225-1)

MaleFemale

4-PORT ISOLATION MODULE SYSTEM – ADAPTER KITS


32

CONFIGURATION PLUG INSTRUCTIONS – 26421

NOTE: If unsure of headlamp common, confi gure plug for a negative common. Complete the installation and check headlamp functions. Turn on the vehicle lights in the low beam mode. Both low beams should be on. If the left low beam does not illuminate, change plug confi guration to positive common and test headlamp functions.

1. Jumper Position B to Position A 2. Insert cavity plug into Position C3. Install secondary lock

Headlamp Common = Negative

Headlamp Common = Positive

To insert terminal or jumper wire into position:

1. Push terminal into correct cavity,2. Listen for a click. If terminal pulls out, carefully bend locking tab outward and reinstall terminal.

Configuration Plug

1. Jumper Position B to Position C2. Insert cavity plug into Position A3. Install secondary lock

Configuration PlugCavityPlug

Wire Side View

Secondary Lock

Secondary Lock

CavityPlug

Wire Side View

A

CB

BC

A

PLUG CONFIGURATION

Some applications will not use the confi guration plug and will be supplied with a "Dust Cover".


33

BLU/ORNLT BLU

BRNGRY

PURBLK/WHTWHT/YELBLK/ORN

BLKWHT

BLU/WHTBLU/RED

BLURED/WHT

RED

YEL*A

A

CB

E

GF

HJK

D

A

CB

E

GF

HJK

D

LT BLUBLU*

PURWHT/YEL

ORNREDGRNGRN

YEL*

LT BLUBLU*

BRNPUR

WHT/YELORNREDGRNGRN

A

CB

E

GF

HJK

D

CB

E

GF

HJK

D

TO SWITCHED ACCESSORY LEAD

12V

BAT

TER

Y

#6 BLK

BRN/RED

BLK/ORN

#6 RED

CONFIGURATION PLUG OR DUST COVER PLUG

PLOW ASSEMBLY

LEFT SIDE PLOW LAMP

BRN

BRN

RED

RED

P

T

PT

RIGHT SIDE PLOW LAMP

PT

RED

BRN

RED

BRNPT

LH

L

H

S1 SOLENOID

S2 SOLENOIDLT GRN

LT BLU

WHT/YEL

BLK

/OR

N

PUMP MOTOR#6 BLK/REDM- +

S3 SOLENOID

#6 BLK

LOCATED NEAR BATTERY

MTR RLY

#6 RED

LOCATED AT FRONT OF VEHICLE

LT BLULT GRN

WHT/YEL

LT BLULT GRN

WHT/YEL

#6 BLK#6 RED From Vehicle

Control Harness

From Vehicle Lighting Harness

From Left Side Vehicle Headlamps

From Right Side Vehicle Headlamps4

3

2

1

RIGHT COMMON OUTRIGHT COMMON IN

RIGHT TURN INRIGHT HIGH BEAM 2 OUT**RIGHT LOW BEAM OUTRIGHT HIGH BEAM OUTRIGHT HIGH BEAM 2 IN**RIGHT HIGH BEAM INRIGHT LOW BEAM IN

LEFT COMMON OUTLEFT COMMON INPARK LAMP INLEFT TURN INLEFT HIGH BEAM 2 OUT**LEFT LOW BEAM OUTLEFT HIGH BEAM OUTLEFT HIGH BEAM 2 IN **LEFT HIGH BEAM INLEFT LOW BEAM IN

A

CB

A

CB


BRNPURGRY

WHT

BLK/ORN

LT BLU

BLK

WHT/YEL

BLK/ORN

BLK/WHT

BLU/ORN

BRNPURGRY

WHTBLU/ORN

LT BLU


BLKBLK/ORN

1

3

54

76

891011

21

32

5

76

891011

4

SOLENOIDCONTROL

BLK

GRN

WHT

BRN

RED

BLU

6

4

3

5

2

1

HAND-HELDCONTROLCOIL CORD HARNESS

6

7

5

4

WHT

BLK

GRN

ORN

2

3

1

YEL

BLU

RED

3

4

6

5

7

2

1

6

4

3

5

2

1

LOCATED UNDER DASH

WHT/YELLT BLU

BLK/ORNLT GRN

RED/YEL

BRN/RED

6

43

5

21

1

3

54

76

89

1011

21

3

54

76

89

1011

2

12

12

15-AMP P/T FUSE

7.5-AMP CONTROL FUSE


RIGHT TURN IN

RIGHT LOW BEAM OUTRIGHT HIGH BEAM OUT

RIGHT HIGH BEAM INRIGHT LOW BEAM IN

LEFT COMMON OUT

LEFT COMMON INPARK LAMP INLEFT TURN INDRL SIGNAL INLEFT LOW BEAM OUTLEFT HIGH BEAM OUT

LEFT HIGH BEAM INLEFT LOW BEAM IN YEL

PUR

ORNRED

GRNYEL

BRNPURPNKORNRED

GRNA

CB

E

GF

H

D

A

CB

E

GF

H

D

JK

JK

* HB-1 (9004) A= BLUE, J=YELLOW** 99 DODGE RAM W/ SPORT PACKAGE

(Shown in de-energized state)

#6 BLK/RED#6 BLK

ISOLATION MODULE

4

3

BLK/ORN

RED/YEL RED/YEL

RED/GRN

RED/GRN

RED/BLK

BLK/ORN

FOR HB-3/HB-4 HEADLAMPS:TO VEHICLE HEADLAMPS,PARK/TURN, DRL, ANDFACTORY VEHICLE HARNESSES

LT BLU (or BLU)BLU (or LT BLU)


EXCEPT

FOR ALLHEADLAMPS

TO VEHICLE HEADLAMPS,PARK/TURN, AND FACTORYVEHICLEHARNESSES

HB-3/HB-4:


3-PLUG STRAIGHT BLADE SNOWPLOWS (3-PIN)


34


BLU/ORGLT BLU

BRNGRYPUR

BLK/WHTWHT/YELBLK/ORG

BLKWHT

DK BLU/WHTBLU/RED

BLURED/WHTRED/BLK

RED

YEL*A

A

CB

E

GF

HJK

D

A

CB

E

GF

HJK

D

LT BLUBLU*

PURWHT/YEL

ORGREDGRNGRNYEL*

LT BLUBLU*BRNPUR

WHT/YELORGREDGRNGRN

A

CB

E

GF

HJK

D

CB

E

GF

HJK

D

TO SWITCHED ACCESSORY LEAD

12V

BAT

TER

Y

#6 BLK

BRN/RED

BRN/GRN

#6 RED

CONFIGURATION PLUG OR DUST COVER PLUG

PLOW ASSEMBLY

LOCATED NEAR BATTERY

MTR RLY#6 RED


LT BLULT GRN

WHT/YEL

LT BLULT GRN

WHT/YEL

#6 BLK#6 RED From Vehicle

Control Harness

From Vehicle Lighting Harness

From Left Side Vehicle Headlamps

From Right Side Vehicle Headlamps4

3

2

1

FOR HB-3/HB-4 HEADLAMPS:TO VEHICLE HEADLAMPS,PARK/TURN, DRL, ANDFACTORY VEHICLE HARNESSES


RIGHT TURN IN

RIGHT LOW BEAM OUTRIGHT HIGH BEAM OUT

RIGHT HIGH BEAM INRIGHT LOW BEAM IN

LEFT COMMON OUTLEFT COMMON INPARK LAMP INLEFT TURN INDRL SIGNAL INLEFT LOW BEAM OUTLEFT HIGH BEAM OUT

LEFT HIGH BEAM INLEFT LOW BEAM IN YEL

PUR

ORNRED

GRNYEL



BRNPURPNKORNRED

GRNA

CB

E

GF

H

D

A

CB

E

GF

H

D

JK

JK RIGHT COMMON OUT

RIGHT COMMON IN

RIGHT TURN INRIGHT HIGH BEAM 2 OUT**RIGHT LOW BEAM OUTRIGHT HIGH BEAM OUTRIGHT HIGH BEAM 2 IN**RIGHT HIGH BEAM INRIGHT LOW BEAM IN

LEFT COMMON OUTLEFT COMMON INPARK LAMP INLEFT TURN INLEFT HIGH BEAM 2 OUT**LEFT LOW BEAM OUTLEFT HIGH BEAM OUTLEFT HIGH BEAM 2 IN **LEFT HIGH BEAM INLEFT LOW BEAM IN

1

3

54

76

89

1011

21

3

54

76

89

1011

2

12

12

RIGHT SIDE PLOW LAMP

PT

RED

BRN

RED

BRNPT

LH

LEFT SIDE PLOW LAMP

BRN

BRN

RED

RED

P

T

PT

L

H

LT BLU/ORN

BLU/ORN

RED

BLK/WHT


BRNPURGRY

WHT

BLK/ORN

LT BLU

BLK

WHT/YEL

BLK/ORN

BLK/WHT

BLU/ORN

BRNPURGRY

WHTBLU/ORN

LT BLU


BLKBLK/ORN

1

3

54

76

891011

21

32

5

76

891011

4

S1 SOLENOID

S2 SOLENOID

PUMP MOTOR

#6 BLK

#6 BLK/RED- +M

S3 SOLENOID

S4 SOLENOID

S5 SOLENOID

S6 SOLENOID

RED

BLK/WHT

RED/YEL

BLU/ORN

LT BLU/ORN

HAND-HELDCONTROL

COIL CORD HARNESS

67

54WHT

BLK

GRN

ORN

23

1YEL

BLU

RED

6

43

5

21

34

65

7

21

789

1011121314

891011

89

1011

VIOGRY

TANBRN

LOCATED UNDER DASH

6

43

5

21

7891011121314

RED/YEL

BRN/GRN

LT BLU/ORNBLU/ORNBLK/WHT

LT GRNLT BLU

WHT/YELBRN/RED

15-AMP P/T FUSE10-AMP CONTROL FUSE

A

CB

A

CB

* HB-1 (9004) A= BLUE, J=YELLOW** 99–02 DODGE RAM W/ SPORT PACKAGE

BLK/ORN

RED/GRN

(Shown in de-energized state)

4

3

RE

D

RED/GRN

RED/YEL

BLK/ORN

EXCEPT

FOR ALLHEADLAMPS

TO VEHICLE HEADLAMPS,PARK/TURN, AND FACTORYVEHICLEHARNESSES

HB-3/HB-4:

F1

F2

3-PLUG MVP® SNOWPLOWS (7-PIN)


35

321

4321

4


REDRED

BLKBLK

GRNRED

WHTBLK

Control

RED

RED/GRN

To Switched Accessory Lead




4

2

3

1

4

2

3

1


A DCB


BLK

BLK

RE

D

BA C D

WH

T

RED RED

C C

AB

AB

DD BLK

TA

N

ABCDEFGHJK

* HB-1(9004) A=BLUE, J=YELLOW)** 99 DODGE RAM W/SPORT PACKAGE

PS LOW BEAM NO.2 OUT**

PS HIGH BEAM NO.2 IN**

DS HIGH BEAM NO.2 IN**

DS LOW BEAM NO.2 OUT**PARK LAMP IN

PS TURN IN

PS COMMON OUT

PS LOW BEAM OUTPS HIGH BEAM OUT

PS COMMON IN

PS HIGH BEAM INPS LOW BEAM IN

DS TURN IN

DS COMMON OUT

DS LOW BEAM OUTDS HIGH BEAM OUT

DS COMMON IN

DS HIGH BEAM INDS LOW BEAM IN

ABCDEFGHJKVehicle

LightingHarness,

11 Pin

For All HeadlampsExceptHB-3/HB-4:To VehicleHeadlamps,Park/Turnand FactoryVehicleHarnesses

PS COMMON OUTPS COMMON IN

PS HIGH BEAM OUTPS LOW BEAM OUT

PS TURN IN

BLULTBLU

REDORG

PUR

ABCDEFGHJK

DS COMMON INDS COMMON OUT

PS LOW BEAM INPS HIGH BEAM IN

DS HIGH BEAM OUTDS LOW BEAM OUT

DS TURN INPARK LAMP IN

DRL SIGNAL IN

LTBLU

YEL

BLU

GRN

BRNPUR

ORGRED

PNK

DS LOW BEAM INDS HIGH BEAM IN

YELGRN

ABCDEFGHJK

WHT/YELPUR

LTBLU

ORGRED

BLU*

Isolation Module

ABCDEFGHJK

WHT

GRN

WHT/YEL

GRNYEL*

BLU*

REDORG

LTBLU

PURBRN

YEL*GRN

BLU/ORNLTBLUBRN

PURGRY

BLK/WHTWHT/YELBLK/ORN

BLK

From VehicleControl Harness

From VehicleLighting Harness

From DSVehicleHeadlamps

From PSVehicleHeadlamps

DKBLU/WHT

WHT

RED/WHTRED/BLK

DKBLU/RED

RED/YEL

BLU

RED

ABCDEFGHJK

SnowplowLightingHarness,

11 PinTURNPARK COM

HIGHLOWBEAM

PARKTURN

HIGHLOWBEAM

LOW-6A

TURN-8B

COM-11B

PARK

HIGH-4C

C

ABB

C

ABB

C

AB

C

AB

COM-5BLOW-1A

HIGH-3C

TURN-9BPARK

COM

TURN-9B

COM-11BPARK

LOW-6A

TURN-8B

COM-5B

COM

HIGH-4C

LOW-1A

HIGH-3CCOM

8

11109

7

56

34

12

89

1011

4

65

7

23

1 BLK/WHTBLK/ORNWHT/YEL

WHTBLU/ORN

BLKBLK/ORN

GRYPURBRN

LTBLU

A

CB

BLK/ORNPlow Module

WHTTAN

BLK

BLK

RED

4 Amp Fuse: S1, S2, S34 Amp Fuse: Motor Relay

4 Amp Fuse: S4, S5, S6, S74 Amp Fuse: S8, S9, S10, S11

–PumpMotor

RED

RE

D

MotorRelay

S1

S2

S3

BLKRED

REDWHT

GRN

BLURED

AG

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

B

S10

S9

S8

S11

S7

S6

GRY

RED

WHT

GRN

ORN

REDBRN

YEL

S4

S5 BLK

TAN

BBA

CA

HH

DC

FG

EEDC

FG

KJK

JBC

AConfigurationPlug or

Dust Cover

15 AmpPark/Turn

Fuse

7.5 AmpControl

Fuse

Battery

Port #1 Adapter

4

3

4

3

2

1

+

+–

For HB-3/HB-4Headlamps:To VehicleHeadlamps,Park/Turn, DRLand FactoryVehicleHarnesses

RED BLK

RE

D


Snowplow Assembly


Driver-Side Plow Headlamp


2-PLUG MVP PLUS™ SNOWPLOWS



36

321

4321

4


REDRED

BLKBLK

GRNRED

WHTBLK

Control

RED

RED/GRN

To Switched Accessory Lead




4

2

3

1

4

2

3

1


A DCB


BLK

BLK

RE

D

BA C D

WH

T

RED RED

C C

AB

AB

DD BLK

TA

N

ABCDEFGHJK

* HB-1(9004) A=BLUE, J=YELLOW)** 99 DODGE RAM W/SPORT PACKAGE

PS LOW BEAM NO.2 OUT**

PS HIGH BEAM NO.2 IN**

DS HIGH BEAM NO.2 IN**

DS LOW BEAM NO.2 OUT**PARK LAMP IN

PS TURN IN

PS COMMON OUT

PS LOW BEAM OUTPS HIGH BEAM OUT

PS COMMON IN

PS HIGH BEAM INPS LOW BEAM IN

DS TURN IN

DS COMMON OUT

DS LOW BEAM OUTDS HIGH BEAM OUT

DS COMMON IN

DS HIGH BEAM INDS LOW BEAM IN

ABCDEFGHJKVehicle

LightingHarness,

11 Pin

For All HeadlampsExceptHB-3/HB-4:To VehicleHeadlamps,Park/Turnand FactoryVehicleHarnesses

PS COMMON OUTPS COMMON IN

PS HIGH BEAM OUTPS LOW BEAM OUT

PS TURN IN

BLULTBLU

REDORG

PUR

ABCDEFGHJK

DS COMMON INDS COMMON OUT

PS LOW BEAM INPS HIGH BEAM IN

DS HIGH BEAM OUTDS LOW BEAM OUT

DS TURN INPARK LAMP IN

DRL SIGNAL IN

LTBLU

YEL

BLU

GRN

BRNPUR

ORGRED

PNK

DS LOW BEAM INDS HIGH BEAM IN

YELGRN

ABCDEFGHJK

WHT/YELPUR

LTBLU

ORGRED

BLU*

Isolation Module

ABCDEFGHJK

WHT

GRN

WHT/YEL

GRNYEL*

BLU*

REDORG

LTBLU

PURBRN

YEL*GRN

BLU/ORNLTBLUBRN

PURGRY

BLK/WHTWHT/YELBLK/ORN

BLK

From VehicleControl Harness

From VehicleLighting Harness

From DSVehicleHeadlamps

From PSVehicleHeadlamps

DKBLU/WHT

WHT

RED/WHTRED/BLK

DKBLU/RED

RED/YEL

BLU

RED

ABCDEFGHJK

SnowplowLightingHarness,

11 PinTURNPARK COM

HIGHLOWBEAM

PARKTURN

HIGHLOWBEAM

LOW-6A

TURN-8B

COM-11B

PARK

HIGH-4C

C

ABB

C

ABB

C

AB

C

AB

COM-5BLOW-1A

HIGH-3C

TURN-9BPARK

COM

TURN-9B

COM-11BPARK

LOW-6A

TURN-8B

COM-5B

COM

HIGH-4C

LOW-1A

HIGH-3CCOM

8

11109

7

56

34

12

89

1011

4

65

7

23

1 BLK/WHTBLK/ORNWHT/YEL

WHTBLU/ORN

BLKBLK/ORN

GRYPURBRN

LTBLU

A

CB

BLK/ORNBC

AConfigurationPlug or

Dust Cover

15 AmpPark/Turn

Fuse

7.5 AmpControl

Fuse

Battery

Port #1 Adapter

4

3

4

3

2

1

+–

For HB-3/HB-4Headlamps:To VehicleHeadlamps,Park/Turn, DRLand FactoryVehicleHarnesses

RED BLK


Snowplow Assembly


Driver-Side Plow Headlamp

Plow Module

–PumpMotor

MotorRelay

S1

S2

A

B

S10

S9

S8

S7

S6

RED

REDBLK

BLK

RED

REDDKBLU

DKGRN

GRY

BRN

YEL

BLK

RED

REDWHT

WHT

RED

TANWHT

S5

C

+

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

G

ABCDEF

K

HJ

4 Amp Fuse: S5, S6, S7, S84 Amp Fuse: S9, S10

4 Amp Fuse: S1, S2, Motor Relay

4 Amp Fuse: Sense



2-PLUG WIDE-OUT™ SNOWPLOWS


37

1 Not shown. Requires adapter kit 26641.

Harness Part #26349

Location Wire ColorBlack Molded Female Plug1 GREEN2 BLUE3 YELLOW

Blue Male PlugA LT BLUE* / ORANGE**B ORANGE* / LT BLUE**C RED

* HB-1 ** HB-5

Splice Tap WiresLoose PURPLELoose BROWN

10-Position PlugA BLUE* / YELLOW**B GREENC —D REDE ORANGEF —G PURPLEH BROWNJ YELLOW* / BLUE**K LT BLUE

Blue Male Plug

Black Molded Female Plug

10-Position Plug forHarnesses #26349 and #26354

Plugs for Harnesses#26349 and #26354

HEADLAMP WIRING – 8436 HARNESS KIT (HB-1 OR HB-5) (1A/2A1)

Harness Part #26354

Location Wire ColorBlack Molded Female Plug1 GREEN2 BLUE3 YELLOW

Blue Male PlugA LT BLUE* / ORANGE**B ORANGE* / LT BLUE**C RED

* HB-1 ** HB-5

Splice Tap WiresLoose PURPLE

10-Position PlugA BLUE* / YELLOW**B GREENC —D REDE ORANGEF —G PURPLEH —J YELLOW* / BLUE**K LT BLUE


38

HEADLAMP WIRING – 8439 HARNESS KIT (2B/2D) (2E1)



Male Plug

Female Plug

Harness Part #26353

Location Wire ColorFemale Plug

A LT BLUEB ORANGEC RED

Male PlugA GREENB YELLOWC BLUE


10-Position PlugA YELLOWB GREENC —D REDE ORANGEF —G PURPLEH —J BLUEK LT BLUE

Harness Part #26356


A ORANGEB LT BLUEC RED

Male PlugA YELLOWB BLUEC GREEN


10-Position PlugA YELLOWB GREENC —D REDE ORANGEF —G PURPLEH BROWNJ BLUEK LT BLUE

1 Not shown. Requires adapter kit 27698.


39

HEADLAMP WIRING – 8442 HARNESS KIT (HB-1/HB-5 QUAD)

Harness Part #26372Location Wire ColorBlack Molded Female Plug (3 Wire)

1 GREEN2 BLUE3 YELLOW

Blue Male PlugA ORANGEB LT BLUEC RED

Black Molded Plug (2 Wire)1 GREEN2 —3 YELLOW

Blue Female Plug (2 Wire)A YELLOWB —C WHITE / YELLOW

Splice Tap WiresLoose BROWNLoose PURPLE

10-Position PlugA YELLOWB GREENC GREEND REDE ORANGEF WHITE / YELLOWG PURPLEH BROWNJ BLUEK LT BLUE

Harness Part #26370Location Wire ColorBlack Molded Female Plug (3 Wire)

1 GREEN2 BLUE3 YELLOW

Blue Male PlugA ORANGEB LT BLUEC RED

Black Molded Plug (2 Wire)1 GREEN2 —3 YELLOW

Blue Female Plug (2 Wire)A YELLOWB —C WHITE / YELLOW


10-Position PlugA YELLOWB GREENC GREEND REDE ORANGEF WHITE / YELLOWG PURPLEH —J BLUEK LT BLUE

Blue Male Plug

Black Molded Female Plug (3 Wire)

10-Position Plugfor Harness #26370 & #26372

Plugs for Harness #26370 & #26372

Blue Female Plug (2 Wire)

Black Molded Plug (2 Wire)


40


7-Pin Male Plug7-Pin Female Plug

10-Position Plug (Tag #3)for Harness #26638

10-Position Plug (Tag #4)for Harness #26638

Harness Part #26638

Location Wire Color7-Pin Female Plug

A BROWNB YELLOWC PURPLED PURPLEE GREENF —G BLACK / ORANGE

7-Pin Male PlugA BROWNB ORANGEC PURPLED PURPLEE REDF —G BLACK / ORANGE

10-Position Plug (Tag #3)A YELLOWB GREENC —D REDE ORANGEF —G PURPLEH —J BLUEK LT BLUE

Harness Part #26638

Location Wire Color10-Position Plug (Tag #4)

A YELLOWB GREENC —D —E —F —G PURPLEH BROWNJ —K LT BLUE



41

HEADLAMP WIRING – 27480-1/8437-1 HARNESS KITS (HB-3/HB-4)

Harness Part #26360

Location Wire Color2-Key Female Plug

A LT BLUEB GREEN

2-Key Male PlugA BLUEB RED

1-Key Female PlugA BLUEB YELLOW

1-Key Male PlugA BLUEB ORANGE


10-Position PlugA YELLOWB GREENC —D REDE ORANGEF —G PURPLEH —J LT BLUEK BLUE

Harness Part #26361


A LT BLUEB GREEN

2-Key Male PlugA BLUEB RED

1-Key Female PlugA BLUEB YELLOW

1-Key Male PlugA BLUEB ORANGE

Splice Tap WiresLoose BROWNLoose PURPLELoose PINK*

10-Position Plug "B"A YELLOWB GREENC —D REDE ORANGEF PINKG PURPLEH BROWNJ LT BLUEK BLUE

2-Key Male Plug

2-Key Female Plug

10-Position Plug forHarnesses #26360 & #26361

Plugs for Harnesses#26360 & #26361

1-Key Male Plug

1-Key Female Plug

* Pink wire not used on 27480.


42

HEADLAMP WIRING – 27780/8438 HARNESS KITS (HB-3/HB-4)

Harness Part #26351


A GREENB BLUE

2-Key Male PlugA REDB LT BLUE

1-Key Female PlugA YELLOWB BLUE

1-Key Male PlugA ORANGEB BLUE

Splice Tap WiresLoose PURPLELoose BROWNLoose PINK*

10-Position PlugA YELLOWB GREENC —D REDE ORANGEF PINKG PURPLEH BROWNJ BLUEK LT BLUE

Harness Part #26352


A GREENB BLUE

2-Key Male PlugA REDB LT BLUE

1-Key Female PlugA YELLOWB BLUE

1-Key Male PlugA ORANGEB BLUE



2-Key Male Plug

2-Key Female Plug

10-Position Plug forHarnesses #26351 & #26352

Plugs for Harnesses#26351 & #26352

1-Key Male Plug

1-Key Female Plug

* Pink wire not used on 8438.


43

HEADLAMP WIRING – 27890 HARNESS KIT (2B/2D OR 1A/2A)



Male Plug

Female Plug

Harness Part #27885Location Wire Color

Female PlugA YELLOW* / GREEN**B GREEN* / YELLOW**C BLUED PURPLEE BROWN

* Rev. 0 ** Rev. 1

Male PlugA REDB ORANGEC LT BLUED PURPLEE BROWN

10-Position PlugA GREEN*

YELLOW**B YELLOW*

GREEN**C —D REDE ORANGEF —G PURPLEH BROWNJ BLUEK LT BLUE

* Rev. 0 ** Rev. 1

Harness Part #27886Location Wire Color

Female PlugA YELLOW* / GREEN**B GREEN* / YELLOW**C BLUED PURPLEE BROWN

* Rev. 0 ** Rev. 1

Male PlugA REDB ORANGEC LT BLUED PURPLEE BROWN

10-Position PlugA GREEN*

YELLOW**B YELLOW*

GREEN**C —D REDE ORANGEF —G PURPLEH —J BLUEK LT BLUE

* Rev. 0 ** Rev. 1


44

HEADLAMP WIRING – 28028 HARNESS KIT (HB-3/HB-4)

Harness Part #28030


A GREENB YELLOWC LT BLUED BLUE

Male PlugA REDB ORANGEC BLUED BLUE


10-Position PlugA YELLOWB GREENC —D REDE ORANGEF —G PURPLEH —J LT BLUEK BLUE


Plugs for Harnesses #28030 and #28032

Male Plug

Female Plug

Harness Part #28032


A GREENB YELLOWC LT BLUED BLUE

Male PlugA REDB ORANGEC BLUED BLUE


10-Position PlugA YELLOWB GREENC —D REDE ORANGEF —G PURPLEH BROWNJ LT BLUEK BLUE


45

HEADLAMP WIRING – 28400 HARNESS KIT (H13)

Harness Part #28242*





*Rev. 3 and Higher


Plugs for Harnesses #28242 and #28244


Male Plug

Female Plug

Harness Part #28244*





*Rev. 3 and Higher

10-Position PlugA YELLOWB GREENC —D REDE ORANGEF —G PURPLEH BROWNJ BLUEK LT BLUE


46

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47

RELAY SYSTEM – HEADLAMP INDEX

Vehicle(s) Year(s) Headlamp TypeHeadlamp

Harness Part # DRLsPage No.

Chevrolet-GMCSilverado '03 HB-3/HB-4 64075 Yes 86

Silverado, Sierra(Low Side Drive System) '99–'02 HB-3/HB-4 26071 Yes 66

GM C4500, 5500 '03 2B, 1A/2A** 64126 Yes 59S10/S15 Blazer, Jimmy and

Pickup '98 HB-3/HB-4 62914 Yes 80

All (except S10/S15 Blazer, Jimmy, and Pickup) '98

2B 61546 Yes 59HB-3/HB-4 61716 Yes 60

K1500, K2500, K3500, C2500, C3500 Pickups/Chassis Cabs, Blazer, Jimmy, Tahoe, Yukon

'96,'972B 61546 Yes 59

HB-3/HB-4 61716 Yes 60

S10/S15 Blazer, Jimmy and Pickup; Sonoma '83–'97

2B 61546 No 56

2E62536* Yes 7761576 No 61

HB-3/HB-461586 Yes 7861716 No 57

Suburban, Blazer, Jimmy, Tahoe, Yukon '92–'95

2B61556 Yes 7761546 No 56

HB-3/HB-461586 Yes 7861716 No 57

K2500, K3500, K3500 HD Chassis Cabs '90–'95

2B61556 Yes 7761546 No 56

HB-3/HB-461586 Yes 7861716 No 57

LF/UF61581 modifi ed Yes 79

61581 No 57* Early GM applications used 61576 and 61556 harnesses spliced together.** DRL kit not required. Refer to relay connections only.

Vehicle(s) Year(s) Headlamp TypeHeadlamp

Harness Part # DRLsPage No.

Chevrolet-GMC

K1500, K2500, K3500, C2500, C3500 Pickups '88–'95

2B61556 Yes 7761546 No 56

HB3/HB461586 Yes 7861716 No 57


61581 No 57

K2500, K3500, K3500 HD, R20 2WD Chassis Cabs '81–'89

1A/2A 61566 No 58

2B61556 Yes 7761546 No 56

Suburban, Blazer, Jimmy, R30 2WD, V30 4x4 '81–'91

1A/2A 61566 No 58

2B61556 Yes 7761546 No 56


61581 No 57

K1500, K2500, K3500, C2500, C3500, V10, V20 Pickups '81–'87

1A/2A 61566 No 58

2B61556 Yes 7761546 No 56

Jeep

Cherokee, Wagoneer, Pioneer '84–'012B

61731 Yes 6261731 No 61

LF/UF 61581 No 57Wrangler '86–'03

2B 61731Yes 62

Comanche '86–'93 No 61

See Isolation Module Section for 2004 and newer applications.

Lit. No. 22373, Rev. 07

including 3- and 4-port isolation modules with 2- and 3-plug ......november 1, 2008 lit. no. 22373,...

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