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
Table 4: ETS Off Switch

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-A2

--

--

Not Used

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

TAN

694

Power Door Lock Motor Feed-Driver Door Unlock

A7

LT GRN/BLK

394

Driver Door Jamb Switch Signal

A8

LT BLU

395

Passenger Door Jamb Switch Signal

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

ORN/BLK

737

Trunk Switch Input

A5

BRN/WHT

230

Instrument Panel Lamps Dimmer Switch

A6

PNK

1200

Headlamp High Beam Input

A7

YEL

1836

Passlock™ Sensor Signal

A8-A9

--

--

Not Used

A10

ORN

1732

Electronic Control Unit Output 12 Volt (Inadvertent Load Control)

A11

ORN

1440

Fused Output, Battery

A12

ORN

340

Fused Output, Battery, Inadvertent Load Control

B1

BLK/WHT

451

Ground

B2

LT BLU

1134

Park Brake Switch Signal

B3-B5

--

--

Not Used

B6

DK BLU

1201

Headlamp Low Beam Input

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 (RFA)

B11

BLK/WHT

251

RFA Ground

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 Output

A3

--

--

Not Used

A4

LT GRN/BLK

592

Daytime Running Lamp Relay Output-Coil

A5

BRN

323

Shift Lock Actuator Feed

A6-A8

--

--

Not Used

A9

BRN/WHT

1571

Traction Control System Switch Signal (Pontiac Only)

A10

LT GRN

66

A/C Switch Output

A11

ORN

192

Fog Lamp Switch Output

A12

PNK

39

Fused Output, Ignition 1

B1

PPL

719

Panel Dimming Switch Signal Ground

B2

BLK/WHT

151

Ground

B3

BLK

1835

Passlock™ Ground

B4

--

--

Not Used

B5

DK GRN/WHT

1317

Fog Lamp Relay Output-Coil

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

ETS Off Switch


Object Number: 333035  Size: CH

Connector Part Information

    • 12065422
    • 3-Way F Metri-Pack 150 Series (TAN)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

BRN/WHT

1571

Traction Switch Signal

C

--

--

Not Used