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: Body Control Module (BCM) C4
Table 5: Data Link Connector (DLC)
Table 6: Retained Accessory Power (RAP) Relay
Table 7: Splice Pack (SP205)

Body Control Module (BCM) C1


Object Number: 803688  Size: CH

Connector Part Information

    • 12064871
    • 10-Way F Metri-Pack 150 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

WHT

156

Courtesy Lamp Low Control

B-D

--

--

Not Used

E

LT BLU

14

Left Turn Signal Lamps Supply Voltage

F

DK BLU

15

Right Turn Signal Lamps Supply Voltage

G

LT BLU/WHT

1414

Left Turn Signal Switch Signal

H

DK BLU/WHT

1415

Right Turn Signal Switch Signal

J

PNK

439

Ignition 1 Voltage

K

BLK/WHT

1750

Ground

Body Control Module (BCM) C2


Object Number: 362758  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1

LT GRN

80

Key In Ignition Switch Signal

A2

LT BLU

1830

DRL Park Brake ON Signal

A3

LT GRN

1055

Low Tire Pressure Reset Switch Signal

A4

--

--

Not Used

A5

DK BLU/WHT

727

Door Ajar Switch Signal

A6

ORN/BLK

781

Driver Door Lock Switch Unlock Signal

A7

WHT

1756

Rear Compartment Lid Release Switch Signal

A8

LT GRN

1037

BCM Class 2 Serial Data

B1

YEL/BLK

1138

DRL Ambient Light Sensor Signal

B2

LT GRN/BLK

1137

DRL Ambient Light Sensor Low Reference

B3

WHT/BLK

1073

Ignition Key Resistor Signal

B4

PPL/WHT

1074

Ignition Key Resistor Low Reference

B5

DK BLU

49

Door Unlatch Switch Signal

B6

RED/BLK

780

Driver Door Lock Switch Lock Signal

B7

DK BLU/WHT

1495

Courtesy Lamp Control

B8

--

--

Not Used

Body Control Module (BCM) C3


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

LT GRN

377

Serial Data

A2

LT BLU

1872

Exterior Lamps OFF Input

A3

--

--

Not Used

A4

GRY/BLK

308

Park Lamp Switch Signal On Input

A5

BLK

28

Horn Relay Control

A6

--

--

Not Used

A7

TAN/WHT

816

A/T Shift Lock Solenoid Supply Voltage

A8

DK BLU

38

Backup Lamp Relay Control

A9

BRN

253

Trunk Release Relay Control

A10

BLK

707

RAP Relay Control (RAP)

A11

WHT

103

Automatic Headlamp Relay Control

A12

--

--

Not Used

B1-B3

--

--

Not Used

B4

ORN/BLK

737

Trunk Ajar Switch Signal

B5

YEL

10

Headlamp Switch Signal

B6-B7

--

--

Not Used

B8

YEL

443

Accessory Voltage

B9

PPL

806

Crank Voltage

B10

PPL

1500

Ignition 0 Voltage

B11

BLK/WHT

238

Seat Belt Switch - Left

B12

--

--

Not Used

Body Control Module (BCM) C4


Object Number: 62464  Size: CH

Connector Part Information

    • 12064769
    • 10-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

BLK

1750

Ground

B

BLK

1550

Ground

C

--

--

Not Used

D

ORN

2340

Battery Positive Voltage

E

TAN

694

Driver Door Lock Actuator Unlock Control

F

ORN

1732

Courtesy Lamps Supply Voltage

G

GRY

295

Door Lock Actuator Lock Control

H

TAN

294

Door Lock Actuator Unlock Control

J

ORN

1540

Battery Positive Voltage

K

ORN

240

Battery Positive Voltage

Data Link Connector (DLC)


Object Number: 68793  Size: CH

Connector Part Information

    • 12110250
    • 16-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PPL

1132

DLC Class 2 Serial Data

3

--

--

Not Used

4

BLK

1450

Ground

5

BLK

1550

Ground

6-15

--

--

Not Used

16

ORN

640

Battery Positive Voltage

Retained Accessory Power (RAP) Relay


Object Number: 309518  Size: CH

Connector Part Information

    • 12129715
    • 6-Way F Metri-Pack 280 Series Flexlock (GRY)

Pin

Wire Color

Circuit No.

Function

A1

BLK

707

RAP Relay Control

A2

RED

142

Battery Positive Voltage

B1-B2

--

--

Not Used

C1

DK BLU

75

RAP Relay Switch Supply Voltage

C2

ORN

240

Battery Positive Voltage

Splice Pack (SP205)


Object Number: 338576  Size: CH

Connector Part Information

    • 12191216
    • 12-Way F GT 150 Splice Saver SGL (GRY)

Pin

Wire Color

Circuit No.

Function

A

PPL

1132

DLC CLass 2 Serial Data

B

DK GRN

1049

PCM Class 2 Serial Data

C

LT GRN/BLK

1098

VCM Class 2 Serial Data

D

ORN

1044

VCM Class 2 Serial Data

E

LT BLU

1122

ABS/TCS Class 2 Serial Data

F

DK BLU

1128

SDM Class 2 Serial Data

G

GRY

1036

IPC Class 2 Serial Data

H-K

--

--

Not Used

L

WHT

1038

HVAC Class 2 Serial Data (CJ2)

M

LT GRN

1037

BCM Class 2 Serial Data