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

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

Battery Power

A3-A6

--

--

Not Used

A7

BLK

755

RAP Relay

A8

DK BLU

1393

Inadvertent Power

A9

BLK

28

Horn Relay

A10

--

--

Not Used

A11

LT GRN/BLK

592

Daytime Running Lamp (DRL) Relay

A12

LT GRN

1037

Class 2

B1

BLK

1850

Ground

B2

PNK

39

IGN 1

B3

RED/WHT

812

12 V Reference

B4

--

--

Not Used

B5

GRY

705

Ambient Light Sensor

B6

LT BLU/WHT

1414

LF Turn Signal

B7

LT BLU/WHT

1415

RF Turn Signal

B8

--

--

Not Used

B9

BRN

41

IGN 3

B10

LT BLU

1134

Park Brake Switch

B11

BLK/WHT

238

Seat Belt Switch

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

Class 2

A2

ORN/BLK

1057

Analog Return

A3

GRY/BLK

690

Courtesy Lamp Relay

A4

--

--

Not Used

A5

WHT

1080

Park Lamp Relay

A6-A10

--

--

Not Used

A11

WHT

352

Headlamp Relay

A12

PPL/WHT

1382

Dimming Disable

B1

DK GRN/WHT

817

VSS 4K/Input

B2

--

--

Not Used

B3

YEL

1836

Sensor Signal Passlockā„¢

B4

--

--

Not Used

B5

PPL

524

High Beam

B6

BRN

2409

Park Lamps

B7-B8

--

--

Not Used

B9

LT GRN

80

Key In Ignition

B10-B11

--

--

Not Used

B12

ORN

1732

Interior Lamp Request

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

Dome Lamp

A3

--

1356

Not Used

A4

GRY

705

Ambient Light Sensor

A5

GRY

1220

Dimming Pot

A6

WHT

278

Photocell Signal

A7-A8

--

--

Not Used

B1

--

--

Not Used

B2

ORN

54

Passenger Door Jamb Switch

B3

--

--

Not Used

B4

TAN

126

Driver Door Jamb Switch

B5

--

--

Not Used

B6

PPL

328

Dome Override Switch

B7

--

--

Not Used

B8

PPL/WHT

549

Headlamp Request