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: 130689  Size: CH

Connector Part Information

    • 12110244
    • 24-Way F Micro-Pack 100 Series (PNK)

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A4

WHT/BLK

1073

Ignition Key Resistor Feed

A4

ORN

1640

Fuse Output - Type III Fuse

A5

--

--

Not Used

A6

BLK

999

ALC HDLP Relay Control

A7

YEL/BLK

1138

Ambient Light Sensor Input

A8

--

--

Not Used

A9

BLK/WHT

851

Ground - Clean

A10

LT GRN/BLK

1137

Ambient Light Sensor Ground

A11

--

--

Not Used

A12

DK BLU

1393

Interior Lamp Relay Output - Coil

B1

--

--

Not Used

B2

PPL/WHT

1074

Ignition Key Resistor Return

B3

GRY

1901

Rear Fog Lamp Relay Control (Export)

B4

DK GRN/WHT

1317

Fog Lamp Relay Output - Coil

B5

--

--

Not Used

B6

LT GRN

1037

Serial Data Signal - Class B - 10400 BAUD - Diagnostic To Body Module

B7-B8

--

--

Not Used

B9

LT BLU

1344

Trunk Release Relay Output - Coil

B10

BLK

28

Horn Relay Output - Coil

B11

--

--

Not Used

B12

GRY

2169

TONN REL Relay Control (Convertible)

Body Control Module(BCM) C2


Object Number: 333019  Size: CH

Connector Part Information

    • 12110245
    • 32-Way F Micro-Pack 100 Series (PNK)

Pin

Wire Color

Circuit No.

Function

C1

DK BLU

38

Back Up Lamp Relay Feed - Coil

C2

GRY/BLK

745

Door Ajar Switch Signal - LT FRT

C3

WHT

193

RR Defogger Relay Output - Coil

C4

ORN

640

Fuse Output - BATT - Type III Fuse

C5

--

--

Not Used

C6

TAN

159

Key Reminder Switch Output

C7-C8

--

--

Not Used

C9

PNK/BLK

109

Hood Ajar Switch Signal

C9

DK BLU

2167

Folding Top Lid Latch Signal (Convertible)

C10

PPL

681

Rear Defogger Switch Signal - Secondary

C11

LT GRN

2166

Folding Top Release Input (Convertible)

C12

RED/BLK

744

Trunk Ajar Switch Signal

C13

DK BLU

2167

Folding Top Lid Latch Signal (Convertible)

C14

LT GRN/BLK

80

Key Reminder Switch Signal

C15

LT GRN

1601

Steering Column Lock Signal

C16

--

--

Not Used

D1

BLK/WHT

746

Door Ajar Switch Signal - Right FRT

D2-D3

--

--

Not Used

D4

ORN/BLK

192

Fog Lamp Switch Output - FRT

D5

LT BLU

187

Fog Lamp Switch Output - RR

D6

--

--

Not Used

D7

DK BLU

15

Turn Signal Lamp Feed - RT FRT

D8

LT BLU

14

Turn Signal Lamp Feed - LT FRT

D9

BLK

1576

Trunk Release Switch Output

D10

--

--

Not Used

D11

DK GRN

306

Headlamp OFF Input

D12

YEL

243

Fuse Output - Accessory - Type III Fuse

D13

PNK

1039

Fuse Output - Ignition 1 - Type III Fuse

D14

DK GRN

911

Steering Column Lock Relay Control

D15

BRN/WHT

1571

Traction Control System Switch Signal

D16

LT GRN

1966

DRL RH Relay Control

Body Control Module (BCM) C3


Object Number: 73152  Size: CH

Connector Part Information

    • 12110259
    • 16-Way F Micro-Pack 100 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

BLK

150

Ground

A3

GRY/BLK

690

Courtesy Lamp Relay Output - Coil

A4

ORN

2540

Not Used

A5

YEL/BLK

1784

Park Lamp Relay Control

A6

PPL

1604

Steering Column Unlock Feed

A7

ORN/BLK

1976

DRL LH Relay Control

A8

ORN

1603

Steering Column Lock Feed

B1

BRN/WHT

1244

I/P Lamp Feed #2

B2

YEL

390

I/P Panel Lamp Feed - Tertiary

B3

--

--

Not Used

B4

YEL

183

Fog Lamp Indicator - FRT

B5

--

--

Not Used

B6

GRY

8

Instrument Panel Lamp Feed

B7

YEL/BLK

625

Vehicle Anti - Theft System Starter Enable Relay Output Coil

B8

TAN

159

Key Reminder Switch Output