GM Service Manual Online
For 1990-2009 cars only
Table 1: Ambient Light Sensor
Table 2: Backup Lamp - Left
Table 3: Backup Lamp - Right
Table 4: Backup Switch (L61 w/M/T)
Table 5: Center High Mount Stop Lamp (CHMSL)
Table 6: Courtesy/Map Lamp
Table 7: Cruise/Brake Switch
Table 8: Daytime Running Lamps (DRL) Resistor
Table 9: Dimmer Switch (Dash Illumination)
Table 10: Dome Lamp - Front
Table 11: Dome Lamp - Rear
Table 12: Fog Lamps
Table 13: Fog Lamp Switch
Table 14: Hazard Switch
Table 15: Headlamp - Left - High Beam
Table 16: Headlamp - Left - Low Beam
Table 17: Headlamp - Right - High Beam
Table 18: Headlamp - Right - Low Beam
Table 19: Headlamp Switch
Table 20: License Lamp - Left
Table 21: License Lamp - Right
Table 22: Liftgate Lamp - Left
Table 23: Liftgate Lamp - Right
Table 24: Marker Lamp - LF
Table 25: Marker Lamp - RF
Table 26: Park/Stop Lamp - LR
Table 27: Park/Stop Lamp - RR
Table 28: Park/Turn Signal Lamp - LF
Table 29: Park/Turn Signal Lamp - LR
Table 30: Park/Turn Signal Lamp - RF
Table 31: Park/Turn Signal Lamp - RR
Table 32: PRNDL Lamp
Table 33: Stop Lamp Switch

Ambient Light Sensor


Object Number: 82383  Size: CH

Connector Part Information

    â€¢ 12047662
    â€¢ 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

1137

DRL/Ambient Light Sensor Signal

B

YE/BK

1138

Low Reference

Backup Lamp - Left


Object Number: 1290411  Size: CH

Connector Part Information

    â€¢ 021940259
    â€¢ 3-Way F Bulb 3057 Socket (BK)

Pin

Wire Color

Circuit No.

Function

MAJ

L-GN

24

Backup Lamp Supply Voltage

MIN

--

--

Not Used

GND

BK

750

Ground

Backup Lamp - Right


Object Number: 1290411  Size: CH

Connector Part Information

    â€¢ 021940259
    â€¢ 3-Way F Bulb 3057 Socket (BK)

Pin

Wire Color

Circuit No.

Function

MAJ

L-GN

24

Backup Lamp Supply Voltage

MIN

--

--

Not Used

GND

BK

850

Ground

Backup Switch (L61 w/M/T)


Object Number: 635009  Size: CH

Connector Part Information

    â€¢ 12052641
    â€¢ 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

239

Ignition 1 Voltage

B

L-GN

24

Backup Lamp Supply Voltage

Center High Mount Stop Lamp (CHMSL)


Object Number: 1282958  Size: CH

Connector Part Information

    â€¢ 7283-5530-40
    â€¢ 2-Way F (L-GY)

Pin

Wire Color

Circuit No.

Function

1

L-BU

20

Stop Lamp Switch Signal

2

BK

650

Ground

Courtesy/Map Lamp


Object Number: 333035  Size: CH

Connector Part Information

    â€¢ 12047781
    â€¢ 3-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

OG

1732

Courtesy Lamps Supply Voltage

B

BK

750

Ground

C

GY

157

Courtesy Lamp Switch Signal

Cruise/Brake Switch


Object Number: 287957  Size: CH

Connector Part Information

    â€¢ 12041433
    â€¢ 2-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

1339

Ignition 1 Voltage

B

PU

420

Cruise Control Release Signal

Daytime Running Lamps (DRL) Resistor


Object Number: 68721  Size: CH

Connector Part Information

    â€¢ 15300027
    â€¢ 2-Way F Metri-Pack 280 Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

GY

589

DRL Relay

B

BK

150

Ground

Dimmer Switch (Dash Illumination)


Object Number: 808685  Size: CH

Connector Part Information

    â€¢ 12020299
    â€¢ 5-Way F P/C Edgeboard - Standard (NA)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

BN/WH

230

I/P Lamps Dimmer Control

C

TN

470

Low Reference

D-E

--

--

Not Used

Dome Lamp - Front


Object Number: 130635  Size: CH

Connector Part Information

    â€¢ 12045813
    â€¢ 4-Way F Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

WH

156

Courtesy Lamps Switch Signal

B

GY

157

Courtesy Lamp Control

C

BK

750

Ground

D

OG

1732

Courtesy Lamps Supply Voltage

Dome Lamp - Rear


Object Number: 130635  Size: CH

Connector Part Information

    â€¢ 12045813
    â€¢ 4-Way F Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

GY

157

Courtesy Lamp Control

C

--

--

Not Used

D

OG

1732

Courtesy Lamps Supply Voltage

Fog Lamps


Object Number: 646148  Size: CH

Connector Part Information

    â€¢ 12020599
    â€¢ 2-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PU

34

Fog Lamp Relay

B

BK

150

Ground

Fog Lamp Switch


Object Number: 258245  Size: CH

Connector Part Information

    â€¢ 12065872
    â€¢ 7-Way F Micro-Pack 100 Series (GY)

Pin

Wire Color

Circuit No.

Function

1

YE

317

Fog Lamp Relay Coil Supply Voltage

2

OG

192

Front Fog Lamp Switch Signal

3

PK

139

Ignition 1 Voltage

4

--

--

Not Used

5

BK

550

Ground

6

GY

8

Instrument Panel Lamp Supply Voltage

7

--

--

Not Used

Hazard Switch


Object Number: 62464  Size: CH

Connector Part Information

    â€¢ 12064769
    â€¢ 10-Way Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

BK/WH

151

Ground

B

OG

1040

Battery Positive Voltage

C

YE

243

Accessory Voltage

D

--

--

Not Used

E

GY

8

Instrument Panel Lamp Supply Voltage

F

L-BU

14

Left Turn Signal Lamps Supply Voltage

G

D-BU

15

Right Turn Signal Lamps Supply Voltage

H

PU

16

Turn Signal Flasher Signal

J-K

--

--

Not Used

Headlamp - Left - High Beam


Object Number: 684797  Size: CH

Connector Part Information

    â€¢ 12059183
    â€¢ 2-Way F Metri-Pack 280 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

OG

740

Battery Positive Voltage

B

PK

1200

Headlamp High Beam Signal

Headlamp - Left - Low Beam


Object Number: 684796  Size: CH

Connector Part Information

    â€¢ 12059181
    â€¢ 2-Way F Metri-Pack 280 Series Sealed (M-GY)

Pin

Wire Color

Circuit No.

Function

A

OG

740

Battery Positive Voltage

B

D-BU

1201

Headlamp Low Beam Signal

Headlamp - Right - High Beam


Object Number: 684797  Size: CH

Connector Part Information

    â€¢ 12059183
    â€¢ 2-Way F Metri-Pack 280 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

OG

640

Battery Positive Voltage

B

PK

1200

Headlamp High Beam Signal

Headlamp - Right - Low Beam


Object Number: 684796  Size: CH

Connector Part Information

    â€¢ 12059181
    â€¢ 2-Way F Metri-Pack 280 Series Sealed (M-GY)

Pin

Wire Color

Circuit No.

Function

A

OG

640

Battery Positive Voltage

B

D-BU

1201

Headlamp Low Beam Signal

Headlamp Switch


Object Number: 1283124  Size: CH

Connector Part Information

    â€¢ 12047976/929504-3
    â€¢ 8-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

1

BK

550

Ground

2

L-BU

14

Left Turn Signal Lamps Supply Voltage

3

OG

240

Battery Positive Voltage (w/o T82)

GY

691

Headlamp Relay Output (w/T82)

4

PU

16

Turn Signal Flasher Signal

5

D-BU

1201

Headlamp Low Beam Signal

6

D-BU

15

Right Turn Signal Lamps Supply Voltage

7

PK

1200

Headlamp High Beam Signal

8

BN

9

Park Lamp Supply Voltage (w/o T82)

L-BU

74

Park Lamp Switch Signal (w/T82)

License Lamp - Left


Object Number: 646148  Size: CH

Connector Part Information

    â€¢ 12020599
    â€¢ 2-Way F 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

650

Ground

BK

650

Ground

B

WH

9

Park Lamp Supply Voltage

WH

9

Park Lamp Supply Voltage

License Lamp - Right


Object Number: 646148  Size: CH

Connector Part Information

    â€¢ 12020599
    â€¢ 2-Way F 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

650

Ground

B

WH

9

Park Lamp Supply Voltage

Liftgate Lamp - Left


Object Number: 1282874  Size: CH

Connector Part Information

    â€¢ 12186713
    â€¢ 2-Way F (BK)
    â€¢ Indexing may vary

Pin

Wire Color

Circuit No.

Function

1

OG

1732

Courtesy Lamps Supply Voltage

2

GY

157

Courtesy Lamp Control

Liftgate Lamp - Right


Object Number: 1282874  Size: CH

Connector Part Information

    â€¢ 12186713
    â€¢ 2-Way F (BK)
    â€¢ Indexing may vary

Pin

Wire Color

Circuit No.

Function

1

OG

1732

Courtesy Lamps Supply Voltage

2

GY

157

Courtesy Lamp Control

Marker Lamp - LF


Object Number: 744036  Size: CH

Connector Part Information

    â€¢ 12110053
    â€¢ 2-Way F Lamp Socket Wedge Base W2 (L-GY)

Pin

Wire Color

Circuit No.

Function

A

BN

9

Park Lamp Supply Voltage

B

BK

150

Ground

Marker Lamp - RF


Object Number: 744036  Size: CH

Connector Part Information

    â€¢ 12110053
    â€¢ 2-Way F Lamp Socket Wedge Base W2 (L-GY)

Pin

Wire Color

Circuit No.

Function

A

BN

9

Park Lamp Supply Voltage

B

BK

150

Ground

Park/Stop Lamp - LR


Object Number: 1290388  Size: CH

Connector Part Information

    â€¢ 021940459
    â€¢ 3-Way F Bulb 3057 Socket (BK)

Pin

Wire Color

Circuit No.

Function

MAJ

L-BU

20

Stop Lamp Switch Signal

MIN

BN

9

Park Lamp Supply Voltage

GND

BK

750

Ground

Park/Stop Lamp - RR


Object Number: 1290388  Size: CH

Connector Part Information

    â€¢ 021940459
    â€¢ 3-Way F Bulb 3057 Socket (BK)

Pin

Wire Color

Circuit No.

Function

MAJ

L-BU

20

Stop Lamp Switch Signal

MIN

BN

9

Park Lamp Supply Voltage

GND

BK

850

Ground

Park/Turn Signal Lamp - LF


Object Number: 1283128  Size: CH

Connector Part Information

    â€¢ ZF1-00561-UA
    â€¢ 3-Way F (BK)

Pin

Wire Color

Circuit No.

Function

1

BK

150

Ground

2

BN

9

Park Lamp Supply Voltage

3

L-BU

14

Left Turn Signal Lamps Supply Voltage

Park/Turn Signal Lamp - LR


Object Number: 1290375  Size: CH

Connector Part Information

    â€¢ 021780959
    â€¢ 3-Way F Bulb 3057 Socket (BK)

Pin

Wire Color

Circuit No.

Function

MAJ

D-BU

18

Left Rear Turn Lamp Supply Voltage

MIN

BN

9

Park Lamp Supply Voltage

GND

BK

750

Ground

Park/Turn Signal Lamp - RF


Object Number: 1283128  Size: CH

Connector Part Information

    â€¢ ZF1-00561-UA
    â€¢ 3-Way F (BK)

Pin

Wire Color

Circuit No.

Function

1

BK

150

Ground

2

BN

9

Park Lamp Supply Voltage

3

D-BU

15

Right Turn Signal Lamps Supply Voltage

Park/Turn Signal Lamp - RR


Object Number: 1290375  Size: CH

Connector Part Information

    â€¢ 021780959
    â€¢ 3-Way F Bulb 3057 Socket (BK)

Pin

Wire Color

Circuit No.

Function

MAJ

D-BU

19

Right Rear Turn Lamp Supply Voltage

MIN

BN

9

Park Lamp Supply Voltage

GND

BK

850

Ground

PRNDL Lamp


Object Number: 810080  Size: CH

Connector Part Information

    â€¢ 12033701
    â€¢ Lamp Socket Bulb Base Type W-2 Axial (BK)

Pin

Wire Color

Circuit No.

Function

A

GY

8

I/P Dimmer Lamps Switch Signal

B

BK

550

Ground

Stop Lamp Switch


Object Number: 73251  Size: CH

Connector Part Information

    â€¢ 12033701
    â€¢ 2-Way F Metri-Pack 480 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

OG

540

Battery Positive Voltage

B

L-BU

20

Stop Lamp Switch Signal