GM Service Manual Online
For 1990-2009 cars only
Table 1: Backup Lamp, Left
Table 2: Backup Lamp, Right
Table 3: Backup Lamp Switch (Manual)
Table 4: Brake Switch C1
Table 5: Brake Switch C2
Table 6: Courtesy Reading Lamps, Hardtop
Table 7: Courtesy Reading Lamps, Convertible
Table 8: Courtesy Reading Lamp Switches, Hardtop
Table 9: Dome Lamp
Table 10: Fog Lamp Relay
Table 11: Fog Lamp Switch
Table 12: Fog Lamp, Left
Table 13: Fog Lamp, Right
Table 14: Hazard Warning Switch Assembly
Table 15: Headlamp Assembly, Left
Table 16: Headlamp Assembly, Right
Table 17: Headlamp Switch
Table 18: High Mounted Stoplamp Assembly C1
Table 19: High Mounted Stoplamp Assembly C2
Table 20: High Mounted Stoplamp Assembly W/T43 (Chevrolet)
Table 21: High Mounted Stoplamp Assembly W/T43 (Pontiac)
Table 22: Instrument Panel Lamp Dimmer Switch Assembly
Table 23: License Lamp (Chevrolet)
Table 24: License Lamp (Pontiac)
Table 25: Marker Lamp, Left Front
Table 26: Marker Lamp, Right Front
Table 27: Park/Turnlamp, Left Front
Table 28: Park/Turnlamp, Right Front
Table 29: Park/Neutral Position Switch
Table 30: Rear Compartment Courtesy Lamp Assembly
Table 31: Rear View Mirror Reading Lamps
Table 32: Side Marker Lamp, Left Rear
Table 33: Side Marker Lamp, Right Rear
Table 34: Tail/Stop/Turnlamp, Left
Table 35: Tail/Stop/Turnlamp, Right
Table 36: Transaxle Shift Indicator Lamp
Table 37: Turn/Hazard Flasher

Backup Lamp, Left


Object Number: 82372  Size: CH

Connector Part Information

    • 12160393
    • 2-Way Lamp Socket Wedge Base (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Back-Up Lamp Feed

G

BLK

150

Ground

Backup Lamp, Right


Object Number: 82372  Size: CH

Connector Part Information

    • 12160393
    • Lamp Socket Wedge Base W3 Right Angle

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Backup Lamp Feed

G

BLK

150

Ground

Backup Lamp Switch (Manual)


Object Number: 35437  Size: CH

Connector Part Information

    • 12052644
    • 2-Way F Metri-Pack 150 Series

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Backup Lamp Feed

B

PNK

539

Fuse Output, Ignition 1

Brake Switch C1


Object Number: 73251  Size: CH

Connector Part Information

    • 12033701
    • 2-Way Metri-Pack 480 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

140

Fuse Output, Battery

B

WHT

17

Stop Lamp Switch Output

Brake Switch C2


Object Number: 40397  Size: CH

Connector Part Information

    • 12033706
    • 4-Way F Metri-Pack 280 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output, Ignition I

B

PPL

420

Brake Pedal Switch Output (Torque Converter Clutch

C-D

--

--

Not Used

Courtesy Reading Lamps, Hardtop


Object Number: 295486  Size: CH

Connector Part Information

    • 09433040
    • 2-Way F 56 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1732

Inadvertent Power Control

B

ORN

1732

Inadvertent Power Control

Courtesy Reading Lamps, Convertible


Object Number: 295486  Size: CH

Connector Part Information

    • 08900863
    • 2-Way F 56 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

156

Courtesy Lamps Control

B

ORN

1732

Inadvertent Power Control

Courtesy Reading Lamp Switches, Hardtop


Object Number: 333035  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

WHT

156

Courtesy Lamp Control

C

ORN

1732

Inadvertent Power Control

Dome Lamp


Object Number: 295468  Size: CH

Connector Part Information

    • 12129903
    • Lamp Socket Wedge Base W2 (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

156

Courtesy Lamp Control

B

ORN

1732

Inadvertent Power Control

Fog Lamp Relay


Object Number: 39670  Size: CH

Connector Part Information

    • 12129716
    • 5-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

30

PPL

34

Fog Lamp Feed

85

DK GRN/WHT

1317

Fog Lamp Relay Output-Coil

86

BRN

9

Park Lamp Feed

87

ORN

1140

Fuse Output-Battery

Fog Lamp Switch


Object Number: 38600  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN

192

Fog Lamp Relay Feed, Coil

B

BLK

150

Ground

C

PPL

34

Fog Lamp Feed

Fog Lamp, Left


Object Number: 38554  Size: CH

Connector Part Information

    • 12124819
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

PPL

34

Fog Lamp Feed

Fog Lamp, Right


Object Number: 38554  Size: CH

Connector Part Information

    • 12124819
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

PPL

34

Fog Lamp Feed

Hazard Warning Switch Assembly


Object Number: 295503  Size: CH

Connector Part Information

    • 12092237
    • 8-Way Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Stop Lamp Switch Output

B

DK GRN

19

Stop/Turn Lamp Feed, Right Rear

C

YEL

18

Stop/Turn Lamp Feed, Left Rear

D

BRN

27

Hazard Flasher Output

E

PPL

16

Turn Signal Flasher Output

F

LT BLU

14

Turn Signal Lamp Feed, Left Front

G

DK BLU

15

Turn Signal Lamp Feed, Right Front

H

--

--

Not Used

Headlamp Assembly, Left


Object Number: 306269  Size: CH

Connector Part Information

    • 12034372
    • 3-Way F Metri-Pack 800 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

1201

Headlamp Lamp Output (Low Beam)

B

DK BLU

593

Headlamp Feed

C

PNK

1200

Headlamp Lamp Output (High Beam)

Headlamp Assembly, Right


Object Number: 306269  Size: CH

Connector Part Information

    • 12034372
    • 3-Way F Metri-Pack 800 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

1201

Headlamp Lamp Output (Low Beam)

B

ORN

640

Fused Output, Battery

C

PNK

1200

Headlamp Lamp Output (High Beam)

Headlamp Switch


Object Number: 295507  Size: CH

Connector Part Information

    • 12084699
    • 6-Way F Metri-Pack 280 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

251

Ground

B

PNK

1200

Headlamp Lamp Output (High Beam)

C

DK BLU

1201

Headlamp Lamp Output (Low Beam)

D

ORN

240

Fused Output, Battery

E

BLK/WHT

251

Ground

F

BRN

9

Park Lamp Feed

High Mounted Stoplamp Assembly C1


Object Number: 295470  Size: CH

Connector Part Information

    • 08911772
    • 2-Way F Pac-Con (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Stop Lamp Switch Output

B

BLK

150

Ground

High Mounted Stoplamp Assembly C2


Object Number: 295470  Size: CH

Connector Part Information

    • 08911772
    • 2-Way F Pac-Con (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Stop Lamp Switch Output

B

BLK

150

Ground

High Mounted Stoplamp Assembly W/T43 (Chevrolet)


Object Number: 295470  Size: CH

Connector Part Information

    • 12048457
    • 2-Way F Pac-Con (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Stop Lamp Switch Output

B

BLK

150

Ground

High Mounted Stoplamp Assembly W/T43 (Pontiac)


Object Number: 320526  Size: CH

Connector Part Information

    • 12052907
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Stop Lamp Switch Output

B

BLK

150

Ground

Instrument Panel Lamp Dimmer Switch Assembly


Object Number: 287975  Size: CH

Connector Part Information

    • 12020299
    • 5-Way F PC Edgeboard-STD (TAN)

Pin

Wire Color

Circuit No.

Function

A

WHT

156

Courtesy Lamp Control

B

PPL

719

Panel Dimmer Switch Signal Return

C

BRN/WHT

230

Panel Dimmer Switch Signal

D

BLK

150

Ground

E

GRY

8

Instrument Panel Lamp Feed

License Lamp (Chevrolet)


Object Number: 287977  Size: CH

Connector Part Information

    • 12110053
    • 2-Way M Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

9

Park Lamp Feed

B

BLK

150

Ground

License Lamp (Pontiac)


Object Number: 35455  Size: CH

Connector Part Information

    • 12084470
    • 2-Way M Metri-Pack 150 Series (RED)

Pin

Wire Color

Circuit No.

Function

A

BRN

41

Fuse Output, Ignition 3

B

BLK

150

Ground

Marker Lamp, Left Front


Object Number: 287977  Size: CH

Connector Part Information

    • 12110053
    • 2-Way M Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

14

Turn Signal Lamp Feed, Left Front

B

BRN

9

Park Lamp Feed

Marker Lamp, Right Front


Object Number: 287977  Size: CH

Connector Part Information

    • 12110053
    • 2-Way M Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

15

Turn Signal Lamp Feed, Right Front

B

BRN

9

Park Lamp Feed

Park/Turnlamp, Left Front


Object Number: 38605  Size: CH

Connector Part Information

    • 12160394
    • 3-Way Lamp Socket Wedge Base W3 (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

14

Turn Signal Lamp Feed, Left Front

B

BRN

9

Parklamp Feed

G

BLK

150

Ground

Park/Turnlamp, Right Front


Object Number: 38605  Size: CH

Connector Part Information

    • 12160394
    • 3-Way Lamp Socket Wedge Base W3 (NAT)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

14

Turn Signal Lamp Feed, Right Front

B

BRN

9

Parklamp Feed

G

BLK

150

Ground

Park/Neutral Position Switch


Object Number: 68780  Size: CH

Connector Part Information

    • 12129840
    • 7-Way F Metri-Pack Mixed Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

-

-

Not Used

B

PNK

539

Fuse Output- Ignition 1

C

-

-

Not Used

D

BLK/WHT

451

Ground

E

-

-

Not Used

F

LT/GRN

24

Back-Up Lamp Feed

G

-

-

Not Used

Rear Compartment Courtesy Lamp Assembly


Object Number: 333035  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN

1732

Inadvertent Power Control

B

BLK

150

Ground

C

ORN/BLK

737

Rear Compartment Lamp Output

Rear View Mirror Reading Lamps


Object Number: 39660  Size: CH

Connector Part Information

    • 12047785
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

WHT

156

Courtesy Lamps Control

C

ORN

1732

Inadvertent Power Control

D

--

--

Not Used

Side Marker Lamp, Left Rear


Object Number: 130733  Size: CH

Connector Part Information

    • 12146418
    • Lamp Socket (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

9

Park Lamp Feed

B

BLK

150

Ground

Side Marker Lamp, Right Rear


Object Number: 130733  Size: CH

Connector Part Information

    • 12146418
    • Lamp Socket (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

9

Park Lamp Feed

B

BLK

150

Ground

Tail/Stop/Turnlamp, Left


Object Number: 68737  Size: CH

Connector Part Information

    • 12129489
    • 3-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

18

Stop/Turn Lamp Feed, Left Rear

B

BRN

9

Park Lamp Feed

C

BLK

150

Ground

Tail/Stop/Turnlamp, Right


Object Number: 68737  Size: CH

Connector Part Information

    • 12129489
    • 3-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

19

Stop/Turn Lamp Feed, Right Rear

B

BRN

9

Park Lamp Feed

C

BLK

250

Ground

Transaxle Shift Indicator Lamp


Object Number: 287969  Size: CH

Connector Part Information

    • 12162083
    • 2-Way Lamp Socket Type W-2 Axial (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Feed

B

BLK

150

Ground

Turn/Hazard Flasher


Object Number: 281199  Size: CH

Connector Part Information

    • 12034003
    • 5-Way F Metri-Pack 630 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

PNK

539

Fuse Output, Ignition 1

2

ORN

140

Fuse Output, Battery

3

BRN

27

Hazard Flasher Output

4

PPL

16

Turn Signal Flasher Output

5

BLK

150

Ground