GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module (BCM) C1
Table 2: Body Control Module (BCM) C2
Table 3: Body Control Module (BCM) C3

Body Control Module (BCM) C1


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 GRN

1661

RFA Unlock or Trunk Release Input

A3

WHT

194

Power Door Lock Relay Feed-Unlock

A4

LT BLU

195

Power Door Lock Relay Feed-Lock

A5

BLK/WHT

56

Trunk Release Motor Feed

A6

--

--

Not Used

A7

LT GRN/BLK

395

Door Jamb Switch Signal-Right Front

A8

LT BLU

394

Door Jamb Switch Signal-Passenger

B1-B7

--

--

Not Used

B8

PPL

1807

Serial Data Signal-Class 2

Body Control Module (BCM) 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

BRN

9

Park Lamp Feed

A2

--

--

Not Used

A3

YEL

43

Fused Output, Accessory

A4

--

--

Not Used

A5

BRN/WHT

230

Instrument Panel Lamps Dimmer Output

A6

PNK

1200

Headlamp Input-High Beam

A7

YEL

1836

Passlock™ Sensor Signal™

A8-A9

--

--

Not Used

A10

ORN

1732

Inadvertent Power Control Output

A11

ORN

1440

Fused Output, Battery

A12

ORN

340

Fused Output, Battery

B1

BLK

451

Ground

B2

LT BLU

1134

Park Brake Switch Signal

B3

LT BLU

1662

RFA Lock Input

B4-B6

--

--

Not Used

B7

PPL

1807

Serial Data Signal, Class 2

B8

PPL

1807

Serial Data Signal, Class 2

B9

PPL

1807

Serial Data Signal, Class 2

B10

ORN

1940

Fused Output, Battery

B11-B12

--

--

Not Used

Body Control Module (BCM) C3


Object Number: 255037  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1

WHT

156

Courtesy Lamp Output

A2

GRY

8

Instrument Panel Lamp Feed

A3-A4

--

--

Not Used

A5

BRN

323

Shift Lock Actuator Feed

A6

WHT

193

Rear Defogger Relay Output-Coil

A7-A8

--

--

Not Used

A9

LT BLU

292

Rear Defogger Switch Signal

A10

LT GRN

66

A/C Switch Output

A11

--

--

Not Used

A12

PNK

39

Fused Output, Ignition 1

B1

PPL

719

Panel Dimming Switch Signal Return

B2

BLK/WHT

151

Ground

B3

BLK

1835

Passlock™ Ground

B4-B6

--

--

Not Used

B7

BLK

28

Horn Relay Output-Coil

B8

YEL/BLK

68

Low Coolant Level Switch Signal

B9

GRY

728

Security Indicator Lamp Output

B10

WHT

1459

Passlock Battery Voltage

B11

PNK

849

Brake Fluid Level Sensor Signal

B12

LT GRN

80

Key Reminder Switch Signal