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 - Left
Table 5: Door Handle Switch - Right (w/o Keyless Entry)
Table 6: Door Handle Switch - Right (w/ Keyless Entry)
Table 7: Door Jamb Switch - Driver/Front Passenger
Table 8: Door Jamb Switch - LR/RR
Table 9: Rear Window Wiper Cutout and Liftglass Ajar Jamb Switch

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.

Function

A1

BLK

1850

Ground

A2

ORN

1140

Battery Positive Voltage

A3

WHT

194

Door Unlock Control

A4

LT BLU

195

Door Lock Control

A5-A6

--

--

Not Used

A7

BLK

755

RAP Relay Coil Control

A8

DK BLU

1393

Interior Lamp Relay Coil Control

A9

BLK

28

Horn Relay Control

A10

--

--

Not Used

A11

LT GRN/BLK

592

DRL Relay Control (w/o ZR2) (w/ZR2, External Relay)

A12

LT GRN

1037

BCM Class 2 Serial Data

B1

BLK

1850

Ground

B2

PNK

39

Ignition 1 Voltage

B3

RED/WHT

812

12 Volt Reference

B4

ORN

461

GMCM Serial Data Signal

B5

--

--

Not Used

B6

LT BLU/WHT

1414

Left Front Turn Signal Switch Signal

B7

DK BLU/WHT

1415

Right Front Turn Signal Switch Signal

B8

--

--

Not Used

B9

BRN

41

Ignition 3 Voltage

B10

LT BLU

1134

Park Brake Switch Signal

B11

BLK/WHT

238

Seat Belt Switch - Left

B12

LT BLU

553

Tow/Haul Switch Signal

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.

Function

A1

YEL

710

Class 2 Serial Data

A2

ORN/BLK

1057

Low Reference

A3

GRY/BLK

690

Courtesy Lamp Relay Coil Control

A4

LT GRN

1391

Left Front Power Door Lock Relay Control

A5

WHT

1080

Park Lamp Relay Control

A6

LT BLU

1344

Lift Glass Relay Output - Coil (Utility Only)

A7

DK GRN/WHT

1317

Front Fog Lamp Relay Output - Coil

A8-A9

--

--

Not Used

A10

BLK/WHT

1969

Headlamp High Beam Relay Control (Envoy Only)

A11

WHT

352

Headlamp Relay Coil Supply Voltage (Except Envoy)

A11

WHT

103

Headlamp Switch - Headlamps On (Envoy Only)

A12

PPL/WHT

1382

LED Dimming Signal

B1

DK GRN/WHT

817

Vehicle Speed Signal

B2

--

--

Not Used

B3

YEL

1836

Security System Sensor Signal

B4

--

--

Not Used

B5

PPL

524

Headlamp Dimmer Switch Signal - High Beam (Except Envoy)

B5

BLK/WHT

1969

Headlamp High Beam Relay Control (Envoy Only)

B6

BRN

2409

Interior Park Lamps Supply Voltage

B7-B8

--

--

Not Used

B9

LT GRN

80

Key-in-Ignition Switch Signal

B10

PNK/BLK

1303

RAP Fuse Supply Voltage

B11

DK BLU/WHT

727

Secondary Door Latch Switch Signal

B12

ORN

1732

Courtesy Lamps Supply Voltage

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.

Function

A1

--

--

Not Used

A2

DK BLU/WHT

1495

Courtesy Lamp Switch Signal

A3

BRN

1356

Flash-to-Pass Switch Signal

A4

GRY

705

5 Volt Reference

A5

GRY

1220

Instrument Panel Lamp Fuse Supply Voltage - 2

A6

WHT

278

Ambient Light Sensor Signal

A7

--

--

Not Used

A8

WHT

352

Headlamp Relay Coil Supply Voltage

B1

BLK

1576

Lift Glass Release Switch Signal (Utility Only)

B2

ORN

54

Door Jamb Switch Signal - Passenger/Front Door Handle Switch Input

B3

LT GRN

262

Driver Door Key Switch Signal

B4

TAN

126

Door Open Switch Signal

B5

ORN

192

Front Fog Lamp Switch Signal

B6

PPL

328

Interior Lamp Defeat Switch Signal

B7

--

--

Not Used

B8

PPL/WHT

549

Headlamp Switch - Headlamps Off Signal

Door Handle Switch - Left


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

Door Jamb Switch Signal - Passenger

D

BLK

1850

Ground

Door Handle Switch - Right (w/o Keyless Entry)


Object Number: 38553  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

1050

Ground

D

ORN

54

Door Jamb Switch Signal - Passenger

Door Handle Switch - Right (w/ Keyless Entry)


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

1050

Ground

B

DK BLU/WHT

727

Secondary Door Latch Switch Signal

C

--

--

Not Used

D

ORN

54

Door Jamb Switch Signal - Passenger

Door Jamb Switch - Driver/Front Passenger


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

Left Front Door Open Switch Signal

A

ORN

54

Door Latch Switch Signal - Right Front

B

BLK

1050

Ground

C

--

--

Not Used

Door Jamb Switch - LR/RR


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

Secondary Door Latch Switch Signal

Rear Window Wiper Cutout and Liftglass Ajar Jamb Switch


Object Number: 130635  Size: CH

Connector Part Information

    • 12045813
    • 4-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

PNK/BLK

1303

RAP Fuse Supply Voltage

B

BLK

1350

Ground

C

WHT

393

Rear Window Wiper Motor Control

D

GRY

391

Rear Window Wiper Switch Control