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: Liftgate Ajar Jamb Switch
Table 8: Rear Window Wiper Cutout and Liftglass Ajar Jamb Switch
Table 9: Side Door Jamb Switch, LH/RH
Table 10: 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.

Function

A1

BLK

1850

Ground

A2

ORN

1140

TBC Fuse

A3

WHT

194

Passenger Door Unlock Relay Coil

A4

LT BLU

195

Door Lock Relay Coil

A5-A6

--

--

Not Used

A7

BLK

755

RAP Relay Coil

A8

DK BLU

1393

Inadvertent Power Relay Coil

A9

BLK

28

Horn Relay Coil

A10

--

--

Not Used

A11

LT GRN/BLK

592

Daytime Running Lamp Relay Coil

A12

LT GRN

1037

Class 2 Serial Data Signal

B1

BLK

1850

Ground

B2

PNK

39

GAUGES Fuse

B3

RED/WHT

812

Passlock™ Sensor Power

B4

ORN

461

RFA Serial Data Signal

B5

--

--

Not Used

B6

LT BLU/WHT

1414

Left Turn Signal Fuse

B7

DK BLU/WHT

1415

Right Turn Signal Fuse

B8

--

--

Not Used

B9

BRN

41

CRUISE Fuse

B10

LT BLU

1134

Park Brake Switch Signal

B11

BLK/WHT

238

Seat Belt Switch Signal

B12

LT BLU

553

Transmission Preference 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 Signal

A2

ORN/BLK

1057

Passlock™ Sensor Return

A3

GRY/BLK

690

Courtesy Lamp Relay Coil

A4

LT GRN

1391

Driver Door Unlock Relay Coil

A5

WHT

1080

Park Lamp Relay Coil

A6

LT BLU

1344

Lift Glass Relay Coil (Utility Only)

A7

DK GRN/WHT

1317

Front Fog Lamp Relay Coil

A8-A9

--

--

Not Used

A10

BLK/WHT

1969

High Beam Signal (Envoy Only)

A11

WHT

352

Headlamp Power Relay Coil (Except Envoy)

A11

WHT

103

Low Beam Relay Control Signal (Envoy Only)

A12

PPL/WHT

1382

Dimming Signal

B1

DK GRN/WHT

817

VSS Input 4,000 Pulses Per Mile

B2

--

--

Not Used

B3

YEL

1836

Passlock™ Sensor Data

B4

--

--

Not Used

B5

PPL

524

High/Low Beam Headlamp Selector Switch Input (Except Envoy)

B5

BLK/WHT

1969

High Beam Signal (Envoy Only)

B6

BRN

2409

PARK LP Fuse

B7-B8

--

--

Not Used

B9

LT GRN

80

KEY IN/KEY OUT Signal

B10

PNK/BLK

1303

Gate Ajar Switch Signal

B11

DK BLU/WHT

727

Passenger Door Jamb and Lift Glass Ajar Switch Signal

B12

ORN

1732

Interior Lamp Request Input

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 Request

A3

BRN

1356

Flash to Pass

A4

GRY

705

5 Volt Reference

A5

GRY

1220

Dimming Switch Power Input

A6

WHT

278

Ambient Light Photocell Signal Return

A7

--

--

Not Used

A8

WHT

352

High Beam Relay Coil

B1

BLK

1576

Lift Glass Release Switch (Utility Only)

B2

ORN

54

Front Door Mini Wedges and RF Door Jamb Switch Signal

B3

LT GRN

262

Door Key Lock Cylinder Switch Signal

B4

TAN

126

Driver Door Jamb Switch Signal

B5

ORN

192

Front Fog Lamp Switch

B6

PPL

328

Dome Override Switch

B7

--

--

Not Used

B8

PPL/WHT

549

Headlamp Request Switch Signal

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

Key Cylinder Signal

C

--

--

Not Used

D

ORN

54

Door Jamb Switch Signal - Passenger

Liftgate Ajar Jamb Switch


Object Number: 38608  Size: CH

Connector Part Information

    • 12162189
    • 4-Way F Metri-Pack 150.2 Series, Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

PNK/BLK

1303

Liftgate Ajar Switch Signal

C

--

--

Not Used

D

BLK

1350

Ground

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

Side 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

B

BLK

1050

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