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: Data Link Connector (DLC)
Table 4: Splice Pack SP205

Body Control Module (BCM) C1


Object Number: 73155  Size: CH

Connector Part Information

    • 12089287
    • 8-Way F Metri-Pack 280 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

TAN

694

Driver Door Lock Actuator Unlock Control

B

TAN

294

Door Lock Actuator Unlock Control

C

GRY

295

Door Lock Actuator Lock Control

D

BLK

1550

Ground

E

DK BLU

1393

Protected B+ Output Courtesy Lights

F

GRY/BLK

690

Courtesy Lamp Control

G

ORN

240

Battery Positive Voltage

H

ORN

1540

Battery Positive Voltage

Body Control Module (BCM) C2


Object Number: 73157  Size: CH

Connector Part Information

    • 12110207
    • 32-Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

C1

TAN

159

Drivers Door Switch Signal

C2

WHT

156

Interior Lights On Request Signal

C3

DK BLU

49

Passenger Door Ajar Switch Signal Door Open Switch Signal

C4

ORN

54

Passenger Door Jamb Switch Signal

C5

ORN/BLK

781

Driver Door Lock Switch Unlock Signal

C6

WHT

194

Door Unlock Control

C7

LT BLU

195

Door Lock Control

C8

BLK/WHT

1455

RFA Link Input/Output (RPO AU0)

C9

ORN/BLK

1445

BCM Program Enable Signal

C10

--

--

Not Used

C11

RED/BLK

780

Driver Door Lock Switch Lock Signal

C12

DK GRN

19

Right Rear Stop/Turn Lamp Supply Voltage

C13

PNK

39

Ignition 1 Voltage

C14

YEL

18

Left Rear Stop/Turn Lamp Supply Voltage

C15

DK GRN

389

Vehicle Speed Signal

C16

--

--

Not Used

D1

BLK/WHT

238

Seat Belt Switch - Left

D2

LT GRN

80

Key In Ignition Switch Signal

D3

LT GRN

1845

Chime Control

D4

YEL

43

Accessory Voltage

D5

LT BLU

1872

Headlamp Switch OFF Signal

D6

LT GRN

275

Park Neutral Position Switch Park Signal

D7

DK GRN/WHT

2621

Sec. Sys Warn Away CTD Disarm

D8

--

--

Not Used

D9

BLK

707

RAP Relay Coil Supply Voltage

D10

BLK

28

Horn Relay Control

D11

BRN/WHT

301

Park Lamp Switch On Signal

D12

DK GRN/WHT

529

Seat Belt Indicator Supply Voltage

D13-D14

--

--

Not Used

D15

YEL

749

Security Indicator Control

D16

--

--

Not Used

Data Link Connector (DLC)


Object Number: 68793  Size: CH

Connector Part Information

    • 1211-0250
    • 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

1550

Ground

5

BLK

1550

Ground

6-15

--

--

Not Used

16

ORN

440

Battery Positive Voltage

Splice Pack SP205


Object Number: 338576  Size: CH

Connector Part Information

    • 1535-4707
    • 12-Way F GT 150 Series Splice Saver (GRY)

Pin

Wire Color

Circuit No.

Function

A

PPL

1132

DLC Class 2 Serial Data

B

DK GRN

1049

ECM/PCM/VCM Class 2 Serial Data

C

LT GRN/BLK

1098

VCM Class 2 Serial Data

D

ORN

1044

Radio 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

BRN/WHT

1048

SCM Class 2 Serial Data

J

--

--

Not Used

K

YEL

1127

Trip Computer/Nav Class 2 Serial Data

L

--

--

Not Used

M

PPL

1807

Class 2 Serial Data-Primary