Hummer H1 (2006+). Manual — part 392

12-244

Electrical System

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C65/ 3 WAY LOW BRAKE FLUID SWITCH CONNECTOR LOCATION: ON THE MASTER CYLINDER

C66/ 11 WAY IGNITION SWITCH CONNECTOR LOCATION: ON STEERING COLUMN

PIN

CKT

COLOR

DESCRIPTION

A

570

BK

Ground G2

B

42

BR

Brake warning light circuit

C

41

TN

Park brake switch circuit

Pin

Ckt

color

description

P1

41

TN

Brake light test circuit

ST

33

WH

Start circuit

I1

16

LG

Ignition feed for Buss I1

I2

16

LG

Ignition feed for Buss I1

A1

--

--

--

A1

297

OR

Ignition feed for Buss A1

P2

--

--

--

A2

687

GY

Ignition feed for Buss A2

A2

--

--

--

BAT

37

YL

+12v feed for the ignition switch

BAT

37

YL

+12v feed for the ignition switch

A

C

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Electrical System 12-245

C67/ 6 WAY FUEL SELECTOR VALVE CONNECTOR LOCATION: ON THE FUEL SELECTOR VALVE.

C68-A/ 4 WAY HEATED SEAT MODULE CONNECTOR LOCATION: UNDER THE CENTER
CONSOLE

C68-B/ 4 WAY HEATED SEAT MODULE CONNECTOR LOCATION: UNDER THE CENTER CONSOLE

PIN

CKT

COLOR

DESCRIPTION

A

675

YL

Auxiliary tank fuel level signal from the sending unit

B

29

PK

Fuel gauge signal

C

673

DB

Main tank fuel level signal from the sending unit

D

786

RD

Selector valve actuation signal for the main tank

E

789

BR

Selector valve actuation signal for the auxiliary tank

F

--

--

--

pin

ckt

color

description

A

256

GN

To temp sensor (+)

B

257

GY

To temp sensor (-)

C

258

YL

To heated seat element

D

259

BL

To heated seat element

pin

ckt

color

description

A

256

GN

To temp sensor (+)

B

257

GY

To temp sensor (-)

C

258

YL

To heated seat element

D

259

BL

To heated seat element

A

F

A

D

12-246

Electrical System

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C69/ 4 WAY CRUISE CONTROL SWITCH CONNECTOR LOCATION: IN THE STEERING COLUMN

C70-A/ 4 WAY HEATED SEAT ELEMENT CONNECTOR LOCATION: UNDER DRIVERS SEAT

C70-B/ 4 WAY HEATED SEAT ELEMENT CONNECTOR LOCATION: UNDER PASSENGER SEAT

Pin

CKT

COLOR

DESCRIPTION

A

491

BK

ECM supplied ground

B

151

GY

ON/OFF signal to the ECM

C

153

LG

Resume/Accelerate signal to the ECM

D

152

DB

Set/Continue signal to the ECM

PIN

CKT

COLOR

Description

A

256

GN

To temp sensor (+)

B

257

GY

To temp sensor (-)

C

258

YL

To heated seat element

D

259

BL

To heated seat element

PIN

CKT

COLOR

Description

A

256

GN

To temp sensor (+)

B

257

GY

To temp sensor (-)

C

258

YL

To heated seat element

D

259

BL

To heated seat element

MALE

FEMALE

A

D

B

C

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Electrical System 12-247

C71-A/ 4 WAY FRONT DIFFERENTIAL LOCK SOLENOID LOCATION: ON TOP OF THE REAR
DIFFERENTIAL

C71-B/ 4 WAY REAR DIFFERENTIAL LOCK SOLENOID LOCATION: ON TOP OF THE REAR
DIFFERENTIAL

Pin

CKt

color

description

1

870

BR/WH

Front axle solenoid (-)

2

871

YL/WH

Front axle solenoid (+)

3

--

--

--

4

--

--

--

Pin

CKt

color

description

1

861

BR

Rear axle solenoid (-)

2

862

YL

Rear axle solenoid (+)

3

--

--

--

4

--

--

--