GM Service Manual Online
For 1990-2009 cars only
Table 1: Backup Lamp, Left (Pontiac)
Table 2: Backup Lamp, Left (Chevrolet)
Table 3: Backup Lamp, Right (Pontiac)
Table 4: Backup Lamp, Right (Chevrolet)
Table 5: Backup Lamp Switch (Manual)
Table 6: Brake Switch C1
Table 7: Brake Switch C2
Table 8: Courtesy Lamp, Left
Table 9: Courtesy Lamp, Right
Table 10: Courtesy/Reading Lamp, Left
Table 11: Courtesy/Reading Lamp, Right
Table 12: Courtesy/Reading Lamp Switch, Left
Table 13: Courtesy/Reading Lamp Switch, Right
Table 14: Dome Lamp
Table 15: Fog Lamp Cutoff Relay
Table 16: Fog Lamp Relay
Table 17: Fog Lamp Switch
Table 18: Fog Lamp, Left (Chevrolet)
Table 19: Fog Lamp, Right (Chevrolet)
Table 20: Headlamp Assembly, Left (Chevrolet High Beam)
Table 21: Headlamp Assembly, Left (Chevrolet Low Beam)
Table 22: Headlamp Assembly, Left (Pontiac)
Table 23: Headlamp Assembly, Right (Chevrolet High Beam)
Table 24: Headlamp Assembly, Right (Chevrolet Low Beam)
Table 25: Headlamp Assembly, Right (Pontiac)
Table 26: High Mounted Stoplamp Assembly C1
Table 27: High Mounted Stoplamp Assembly C2
Table 28: High Mounted Stoplamp Assembly W/T43 (Chevrolet)
Table 29: High Mounted Stoplamp Assembly W/T43 (Pontiac)
Table 30: Lamp Dimmer Module (Chevrolet)
Table 31: Lamp Dimmer Module (Pontiac)
Table 32: License Lamp (Chevrolet)
Table 33: License Lamp (Pontiac)
Table 34: Luggage Compartment Lamp
Table 35: Marker Lamp, Left Front
Table 36: Marker Lamp, Right Front
Table 37: Panel Dimmer Switch (Pontiac)
Table 38: Park/Turnlamp, Left Front
Table 39: Park/Turnlamp, Left Front (Pontiac Uplevel)
Table 40: Park/Turnlamp, Right Front
Table 41: Rear View Mirror Courtesy Lamps
Table 42: Side Marker Lamp, Left Rear
Table 43: Side Marker Lamp, Right Rear
Table 44: Tail/Stop/Turnlamp, Left
Table 45: Tail/Stop/Turnlamp, Right
Table 46: Turn/Hazard Flasher
Table 47: Turn/Hazard Headlamp Switch C1
Table 48: Turn/Hazard Headlamp Switch C2
Table 49: Turn/Hazard Headlamp Switch C3

Backup Lamp, Left (Pontiac)


Object Number: 68737  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Backup Lamp Feed

B

--

--

Not Used

C

BLK

150

Ground

Backup Lamp, Left (Chevrolet)


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, Right (Pontiac)


Object Number: 68737  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Backup Lamp Feed

B

--

--

Not Used

C

BLK

150

Ground

Backup Lamp, Right (Chevrolet)


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 Lamp, Left


Object Number: 295486  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN

1732

Electronic Control Unit Output (12 Volt), Inadvertent Load Control

B

WHT

156

Courtesy Lamp Output

Courtesy Lamp, Right


Object Number: 295486  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN

1732

Electronic Control Unit Output (12 Volt), Inadvertent Load Control

B

WHT

156

Courtesy Lamp Output

Courtesy/Reading Lamp, Left


Object Number: 295487  Size: CH

Connector Part Information

    • 12162142
    • Lamp Socket Wedge Base (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1732

Electronic Control Unit Output (12 Volt), Inadvertent Load Control

B

LT GRN

522

Reading Lamp Output, Left

Courtesy/Reading Lamp, Right


Object Number: 295487  Size: CH

Connector Part Information

    • 12162142
    • Lamp Socket Wedge Base (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1732

Electronic Control Unit Output (12 Volt), Inadvertent Load Control

B

LT GRN

523

Reading Lamp Output, Right

Courtesy/Reading Lamp Switch, Left


Object Number: 295489  Size: CH

Connector Part Information

    • 12124756
    • Rotary Switch Assembly (BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK

150

Ground

2

WHT

156

Courtesy Lamp Output

C

LT GRN

522

Reading Lamp Output, Left

Courtesy/Reading Lamp Switch, Right


Object Number: 295489  Size: CH

Connector Part Information

    • 12124756
    • Rotary Switch Assembly (BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK

150

Ground

2

WHT

156

Courtesy Lamp Output

C

LT GRN

523

Reading Lamp Output, Right

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 Output

B

ORN

1732

Electronic Control Unit Output (12 Volt), Inadvertent Load Control

Fog Lamp Cutoff 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

BLK

150

Ground

85

BLK

1200

Headlamp Lamp Output (High Beam)

86

PNK

940

Fog Lamp Relay Feed Coil

87

PNK

1200

Headlamp Lamp Output (High Beam)

87A

DK GRN/WHT

1317

Fog Lamp Relay Output

Fog Lamp Relay


Object Number: 39670  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

30

DK GRN/WHT

1317

Fog Lamp Relay Output, Coil

85

BLK

150

Ground

86

YEL

317

Fog Lamp Relay Feed, Coil

87

PPL

34

Fog Lamp Feed

Fog Lamp Switch


Object Number: 333035  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

YEL

317

Fog Lamp Relay Feed, Coil

B

YEL

32

Fuse Output, IP Lamps

C

BLK

150

Ground

Fog Lamp, Left (Chevrolet)


Object Number: 38554  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN

740

Fuse Output Battery

B

PPL

34

Fog Lamp Feed

Fog Lamp, Right (Chevrolet)


Object Number: 38554  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN

640

Fuse Output Battery

B

PPL

34

Fog Lamp Feed

Headlamp Assembly, Left (Chevrolet High Beam)


Object Number: 35447  Size: CH

Connector Part Information

    • 12059183
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

593

High Beam Headlamp Feed (Daytime Running Lamps)

B

PNK

1200

Headlamp Lamp Output (High Beam)

Headlamp Assembly, Left (Chevrolet Low Beam)


Object Number: 35444  Size: CH

Connector Part Information

    • 12059181
    • 2-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

740

Fuse Output, Battery

B

DK BLU

1201

Headlamp Lamp Output (Low Beam)

Headlamp Assembly, Left (Pontiac)


Object Number: 295492  Size: CH

Connector Part Information

    • 12048369
    • 3-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

1201

(Low beam) Headlamp Feed

B

DK BLU

593

Fuse output

C

PNK

1200

Headlamp output (High Beam)

Headlamp Assembly, Right (Chevrolet High Beam)


Object Number: 35447  Size: CH

Connector Part Information

    • 12059183
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

640

Fuse Output, Battery

B

PNK

1200

Headlamp Lamp Output (High Beam)

Headlamp Assembly, Right (Chevrolet Low Beam)


Object Number: 35444  Size: CH

Connector Part Information

    • 12059181
    • 2-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

640

Fuse Output, Battery

B

DK BLU

1201

Headlamp Lamp Output (Low Beam)

Headlamp Assembly, Right (Pontiac)


Object Number: 295492  Size: CH

Connector Part Information

    • 12048369
    • 3-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

1201

Low beam headlamp feed

B

ORG

640

Fuse Output, Battery

C

PNK

1200

Headlamp Output (High Beam)

High Mounted Stoplamp Assembly C1


Object Number: 295470  Size: CH

Connector Part Information

    • 08911772
    • 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

High Mounted Stoplamp Assembly C2


Object Number: 295470  Size: CH

Connector Part Information

    • 08911772
    • 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

High Mounted Stoplamp Assembly W/T43 (Chevrolet)


Object Number: 35441  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

High Mounted Stoplamp Assembly W/T43 (Pontiac)


Object Number: 130632  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

Lamp Dimmer Module (Chevrolet)


Object Number: 38618  Size: CH

Connector Part Information

    • 12034060
    • 4-Way F Metri-Pack 480 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

Not Used

B

DK GRN

44

IP Lamps Dimmer Switch Output

C

GRY

8

IP Lamp Feed

D

YEL

32

Fuse Output IP Lamps

Lamp Dimmer Module (Pontiac)


Object Number: 38618  Size: CH

Connector Part Information

    • 12034060
    • 4-Way F Metri-Pack 480 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

Not Used

B

DK GRN

44

IP Lamps Dimmer Switch Output

C

GRY

8

IP Lamp Feed

D

YEL

32

Fuse Output, IP Lamps

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, HVAC

B

BLK

150

Ground

Luggage Compartment Lamp


Object Number: 333035  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

--

--

Not used

B

ORN

1732

Electronic Control Unit Output (12 Volt), Inadvertent Load Control

C

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

Panel Dimmer Switch (Pontiac)


Object Number: 287975  Size: CH

Connector Part Information

    • 12020299
    • 5-Way F Printed Circuit Edge Board Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

WHT

156

Courtesy Lamp Output

B

DK GRN

44

IP Lamps Dimmer Switch Output

C

YEL

32

Fuse Output, IP Lamps

D

BLK

150

Ground

E

GRY

8

Instrument Panel 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, Left Front (Pontiac Uplevel)


Object Number: 95769  Size: CH

Connector Part Information

    • 12160395
    • 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

15

Turn Signal Lamp Feed, Right Front

B

BRN

9

Parklamp Feed

G

BLK

150

Ground

Rear View Mirror Courtesy 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

WHT

156

Courtesy Lamp Output

B

BLK

750

Ground

C

ORG

1732

Inadvertent Power Control (12 Volt)

D

--

--

Not Used

Side Marker Lamp, Left Rear


Object Number: 130733  Size: CH

Connector Part Information

    • 12146418
    • Lamp Socket Wedge Base W2 (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 Wedge Base W2 (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

DK GRN

19

Stop/Turn Lamp Feed, Right Rear

B

BRN

9

Park Lamp Feed

C

BLK

250

Ground

Turn/Hazard Flasher


Object Number: 281199  Size: CH

Connector Part Information

    • 12034003
    • 5-Way 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

Turn/Hazard Headlamp Switch C1


Object Number: 295507  Size: CH

Connector Part Information

    • 12084699
    • 6-Way 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

Fuse Output, Battery

E

BLK

350

Ground

F

BRN

9

Park Lamp Feed

Turn/Hazard Headlamp Switch C2


Object Number: 295503  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Brake 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

BLK

28

Horn Relay Output, Coil

Turn/Hazard Headlamp Switch C3


Object Number: 280782  Size: CH

Connector Part Information

    • 12064760
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

339

Fuse Output, Ignition 1

B

DK BLU

84

Cruise Control SET/COAST Switch Signal

C

GRY/BLK

87

Cruise Control RESUME/ACCEL Switch Signal

D

GRY

397

Cruise Control ON Switch Output