GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module Connector C1
Table 2: Body Control Module Connector C2
Table 3: Body Control Module Connector C3
Table 4: Door Handle Switch, LH Connector
Table 5: Door Handle Switch, RH Connector
Table 6: Door Jamb Switch, LH
Table 7: Door Jamb Switch, RH

Body Control Module Connector C1


Object Number: 255037  Size: CH

Connector Part Information

    • 12160778
    • 24-Way F Micro-Pack 100 Series (BRN)

Pin

Wire Color

Circuit No.

Function

A1

BLK

1850

Ground

A2

ORN

1140

Fuse Output - Battery

A3

WHT

194

Power Door Lock Relay Feed - Unlock Coil

A4

LT BLU

195

Power Door Lock Relay Feed - Lock Coil

A5-A6

--

--

Not Used

A7

BLK

755

Delayed Accessory Bus Relay Output - Coil - Accessory Relay

A8

DK BLU

1393

Interior Lamp Relay Output - Coil

A9

BLK

28

Horn Relay Output - Coil

A10

--

--

Not Used

A11

LT GRN/BLK

592

Daytime Running Lamp Relay Output - Coil

A12

LT GRN

1037

Serial Data Signal - Class B - 10400 Baud - Diagnostic to Body Module

B1

BLK

1850

Ground

B2

PNK

39

Fuse Output - Ignition 1

B3

RED/WHT

812

Reference Voltage Feed - 12 Volt Reference

B4

ORN

461

Serial Data Signal - GMCM - 160 Baud

B5

--

--

Not Used

B6

LT BLU/WHT

1414

Turn Signal Switch Output - Left Front

B7

DK BLU/WHT

1415

Turn Signal Switch Output - Right Front

B8

--

--

Not Used

B9

BRN

41

Fuse Output - Ignition 3

B10

LT BLU

1134

Park Brake Switch Signal

B11

BLK/WHT

238

Seat Belt Switch Signal

B12

--

--

Not Used

Body Control Module Connector C2


Object Number: 130690  Size: CH

Connector Part Information

    • 12110206
    • 24-Way F Micro-Pack 100 Series (LT BLU)

Pin

Wire Color

Circuit No.

Function

A1

YEL

710

Serial Data Signal - Class B - 10400 Baud - Secondary

A2

ORN/BLK

1057

Sensor Return

A3

GRY/BLK

690

Courtesy Lamp Relay Output - Coil

A4

LT GRN

1391

Power Door Lock Relay Output - Coil - Left Front

A5

WHT

1080

Park Lamp Relay Output - Coil

A6

--

--

Not Used

A7

DK GRN/WHT

1317

Front Fog Lamp Relay Output - Coil

A8-A10

--

--

Not Used

A11

WHT

352

Headlamp Relay Feed - Coil

A12

PPL/WHT

1382

LED Dimming Signal

B1

DK GRN/WHT

817

Vehicle Speed Signal - 4,000 Pulses Per Mile

B2

--

--

Not Used

B3

YEL

1836

Magnetic Rotation Detection Sensor Signal

B4

--

--

Not Used

B5

PPL

524

Headlamp Dimmer Switch Output - High Beam

B6

BRN

2409

Fuse Output - Interior Park Lamps

B7-B8

--

--

Not Used

B9

LT GRN

80

Key Reminder Switch Signal

B10

--

--

Not Used

B11

DK BLU/WHT

727

Door Switch Signal - Secondary

B12

ORN

1732

Electronic Control Unit Output - 12 Volt - Inadvertant Load Control

Body Control Module Connector C3


Object Number: 362758  Size: CH

Connector Part Information

    • 12191375
    • 16-Way F Micro-Pack 100 Series (PPL)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

DK BLU/WHT

1495

Courtesy Lamp Switch Output - N.O. Contact

A3

BRN

1356

Flash to Pass Switch Signal

A4

GRY

705

Reference Voltage Feef - 5 Volt

A5

GRY

1220

Fuse Output

A6

WHT

278

Photocell Signal

A7-B1

--

--

Not Used

B2

ORN

54

Door Jamb Switch Signal - Passeneger

B3

LT GRN

262

Theft Deterrent

B4

TAN

126

Door Latch Switch Signal - Left Front

B5

ORN

192

Fog Lamp Switch Output - Front

B6

PPL

328

Interior Lamp Defeat Switch Output

B7

--

--

Not Used

B8

PPL/WHT

549

Headlamp Switch Signal - Headlamps Off

Door Handle Switch, LH Connector


Object Number: 38553  Size: CH

Connector Part Information

    • 12110196
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

54

Door Jamb Switch Signal - Passenger

D

BLK

1850

Ground

Door Handle Switch, RH Connector


Object Number: 38553  Size: CH

Connector Part Information

    • 12110196
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1050

Ground

D

ORN

54

Door Jamb Switch Signal - Passenger

Door Jamb Switch, LH


Object Number: 333035  Size: CH

Connector Part Information

    • 12047781
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

126

Door Latch Switch Signal - Left Front

B

BLK

1050

Ground

C

--

--

Not Used

Door Jamb Switch, RH


Object Number: 333035  Size: CH

Connector Part Information

    • 12047781
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

54

Door Latch Switch Signal - Right Front

B

BLK

1050

Ground

C

--

--

Not Used