GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module Connector C1
Table 2: Body Control Module Connector C2
Table 3: Body Control Module Connector C3
Table 4: Door Handle Switch, LH Connector
Table 5: Door Handle Switch, RH Connector
Table 6: Side Door Jamb Switch, RF
Table 7: Side Door Jamb Switch, LH/RH Rear

Body Control Module Connector C1


Object Number: 191572  Size: CF

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function¹

A1

BLK

1850

Ground

A2

ORN

1140

Fuse Output - Battery

A3

WHT

194

Power Door Lock Relay Feed - Unlock Coil

A4

LT BLU

195

Power Door Lock Relay Feed - Lock Coil

A5-A6

--

--

Not Used

A7

BLK

755

Delayed Accessory Bus Relay Output - Coil - Accessory Relay

A8

DK BLU

1393

Interior Lamp Relay Output - Coil

A9

BLK

28

Horn Relay Output - Coil

A10

YEL

1977

Rear Fog Lamp Relay Coil

A11

--

--

Not Used

A12

PPL

1807

Class 2 Serial Data Signal

B1

BLK

1850

Ground

B2

PNK

39

Fuse Output - Ignition 1

B3

RED/WHT

812

Reference Voltage Feed - 12 Volt

B4

ORN

461

Serial Data Signal - GMCM - 160 Baud

B5

--

--

Not Used

B6

LT BLU/WHT

1414

Turn Signal Switch Output - Left Front

B7

DK BLU/WHT

1415

Turn Signal Switch Output - Right Front

B8

--

--

Not Used

B9

BRN

41

Fuse Output - Ignition 3

B10

LT BLU

1134

Park Brake Switch Signal

B11

BLK/WHT

238

Seat Belt Switch Signal

B12

--

--

Not Used

Body Control Module Connector C2


Object Number: 191573  Size: CF

Connector Part Information

    • 12110206
    • 24-Way F Micro-Pack 100 Series (LT BLU)

Pin

Wire Color

Circuit No.

Function¹

A1

YEL

710

Class 2 Serial Data Signal

A2

ORN/BLK

1057

Sensor Return

A3

GRY/BLK

690

Courtesy Lamp Relay Output - Coil

A4

LT GRN

1391

Power Door Lock Relay Output - Coil - Left Front

A5

WHT

1080

Park Lamp Relay Output - Coil

A6

LT BLU

1344

Lift Glass Relay Output - Coil

A7

DK GRN/WHT

1317

Front Fog Lamp Relay Output - Coil

A8-A10

--

--

Not Used

A11

WHT

352

Headlamp Relay Feed - Coil

A12

PPL/WHT

1382

LED Dimming Signal

B1

DK GRN/WHT

817

Vehicle Speed Signal 4,000 Pulses Per Mile

B2

--

--

Not Used

B3

YEL

1836

Magnetic Rotation Detection Sensor Signal

B4

--

--

Not Used

B5

PPL

524

Headlamp Dimmer Switch Output - High Beam

B6

BRN

2409

Fuse Output - Interior Park Lamps

B7-B8

--

--

Not Used

B9

LT GRN

80

Key Reminder Switch Signal

B10

PNK/BLK

1303

Liftgate Ajar Switch Signal

B11

DK BLU/WHT

727

Side Door Jamb Latch Switch Signal - Secondary

B12

ORN

1732

Electronic Control Unit Output - 12 Volt - Inadvertant Load Control

Body Control Module Connector C3


Object Number: 191574  Size: CF

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function¹

A1

--

--

Not Used

A2

DK BLU/WHT

1495

Courtesy Lamp Switch Output - N.O. Contact

A3

BRN

1356

Flash To Pass Switch Signal

A4

GRY

705

Reference Voltage Feed - 5 Volt

A5

GRY

1220

Dimming Potentiometer Input

A6

WHT

278

Photocell Signal

A7-A8

--

--

Not Used

B1

BLK

1576

Lift Glass Release Switch Output

B2

ORN

54

Side Door Jamb Switch Signal - Passenger

B3

LT GRN

262

Door Key Lock Cylinder Switch Signal-Driver

B4

TAN

126

Door Latch Switch Signal - Left Front

B5

ORN

192

Fog Lamp Switch Output - Front

B6

PPL

328

Interior Lamp Defeat Switch Output

B7

LT BLU

187

Rear Fog Lamp Switch

B8

PPL/WHT

549

Headlamp Switch Signal - Headlamps Off

Door Handle Switch, LH Connector


Object Number: 38608  Size: CH

Connector Part Information

    • 12162190
    • 4-Way F Metri-Pack 150.2 Series, Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1850

Ground

B

DK BLU/WHT

727

Side Door Latch Switch Signal - Secondary

C

--

--

Not Used

D

ORN

54

Side Door Jamb Switch Signal - Passenger

Door Handle Switch, RH Connector


Object Number: 38553  Size: CH

Connector Part Information

    • 12110196
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

54

Side Door Jamb Switch Signal

D

BLK

1850

Ground

Side Door Jamb Switch, RF


Object Number: 333035  Size: CH

Connector Part Information

    • 12047781
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

126

Door Latch Switch Signal

B

BLK

1850

Ground

C

--

--

Not Used

Side Door Jamb Switch, LH/RH Rear


Object Number: 35451  Size: CH

Connector Part Information

    • 12059251
    • 2-Way F Metri-Pack 150 Series (RED)

Pin

Wire Color

Circuit No.

Function

A

BLK

1350

Ground

B

DK BLU/WHT

727

Door Latch Switch Signal - Secondary