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 (w/o Keyless Entry)
Table 6: Door Handle Switch, RH Connector (w/ Keyless Entry)
Table 7: Door Jamb Switch, LH/RH
Table 8: Door Jamb Switch, LH/RH Rear
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

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

Inadvertent Power Relay Output - Coil

A9

BLK

28

Horn Relay Output - Coil

A10

--

--

Not Used

A11

LT GRN/BLK

592

Daytime Running Lamp Relay (w/o ZR2) (w/ ZR2, External Relay)

A12

LT GRN

1037

Serial Data Signal - Class B - 10400 Baud - Diagnostic to Body Module

B1

BLK

1850

Ground

B2

PNK

39

Fuse Output - Ignition 1

B3

RED/WHT

812

Reference Voltage Feed - 12 Volt Reference

B4

ORN

461

Serial Data Signal

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

LT BLU

553

Transmission Preference Switch Output - Performance

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

Serial Data Signal - Class B - 10400 Baud - Secondary

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 (Utility Only)

A7

DK GRN/WHT

1317

Front Fog Lamp Relay Output - Coil

A8

WHT

352

High Beam Headlamp Relay Output - Coil (Envoy Only)

A9-A10

--

--

Not Used

A11

WHT

352

Headlamp Relay Feed - Coil (Except Envoy)

A11

WHT

103

Headlamp Switch Signal - Headlamps On (Envoy Only)

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 (Except Envoy)

B5

BLK/WHT

1969

Headlamp Relay Output - Coil (Envoy Only)

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

Door Latch Switch Signal/Rear Passenger Door Jamb Switch Input

B12

ORN

1732

Interior Lamp Request

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

Dome Lamp Switch Input

A3

BRN

1356

Flash to Pass Switch Signal

A4

GRY

705

Reference Voltage Feed - 5 Volt Reference

A5

GRY

1220

Dimming Signal Input

A6

WHT

278

Photocell Signal

A7

--

--

Not Used

A8

WHT

352

Headlamp Relay Feed - Coil

B1

BLK

1576

Lift Glass Release Switch Output (Utility Only)

B2

ORN

54

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

B3

LT GRN

262

Door Key Lock Cylinder Switch Signal

B4

TAN

126

Door Latch Switch Signal - Left Front

B5

ORN

192

Fog Lamp Switch Output - Front

B6

PPL

328

Dome Override Switch Input

B7

--

--

Not Used

B8

PPL/WHT

549

Headlamp Switch Signal - Headlamps Off

Door Handle Switch, LH 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

Door Jamb Switch Signal - Passenger

D

BLK

1850

Ground

Door Handle Switch, RH Connector (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, RH Connector (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

Door Latch Switch Signal - Secondary

C

--

--

Not Used

D

ORN

54

Door Jamb Switch Signal - Passenger

Door Jamb Switch, LH/RH


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 - Left Front

A

ORN

54

Door Latch Switch Signal - Right Front

B

BLK

1050

Ground

C

--

--

Not Used

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

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

Liftgate Ajar Switch Signal

B

BLK

1350

Ground

C

WHT

393

Rear Window Wiper Motor - Feed

D

GRY

391

Rear Window Wiper Switch Output