GM Service Manual Online
For 1990-2009 cars only
Table 1: Ambient Light Sensor
Table 2: Ashtray Lamp
Table 3: Automatic Transmission Shift Lever Position Indicator
Table 4: Backup Lamp - Left/Right (Export)
Table 5: Backup Lamp - Left/Right (Domestic)
Table 6: Backup Lamp Switch (w/M/T)
Table 7: Cargo Lamp
Table 8: Center High Mounted Stop Lamp (CHMSL) (w/Endgate)
Table 9: Courtesy Lamp - Left/Right Console
Table 10: Daytime Running Lamps (DRL) Relay (w/ZR2)
Table 11: Dome Lamp
Table 12: Door Handle Switch - Right
Table 13: Door Jamb Switch - Driver
Table 14: Door Jamb Switch - LR/RR
Table 15: Fog Lamp - LF
Table 16: Fog Lamp - LR/RR (Export)
Table 17: Fog Lamp - RF
Table 18: Fog Lamp Switch - Front
Table 19: Headlamp - High Beam - Left
Table 20: Headlamp - High Beam - Right
Table 21: Headlamp - Low Beam - Left
Table 22: Headlamp - Low Beam - Right
Table 23: Headlamp Leveling Actuator Motor - Left/Right (Export)
Table 24: Headlamp Leveling Switch (Export)
Table 25: Headlamp Switch
Table 26: Inside Rear View Mirror (w/Reading Lamps)
Table 27: Inside Rear View Mirror (w/Light Sensor and Reading Lamps)
Table 28: License Lamp - Center (Export)
Table 29: License Lamp - LR
Table 30: License Lamp - RR
Table 31: Marker Lamp - LF
Table 32: Marker Lamp - LR
Table 33: Marker Lamp - RF
Table 34: Marker Lamp - RR
Table 35: Park/Turn Signal Lamp - LF
Table 36: Park/Turn Signal Lamp - LR
Table 37: Park/Turn Signal Lamp - RF
Table 38: Park/Turn Signal Lamp - RR
Table 39: Repeater Lamp - Left (Export)
Table 40: Repeater Lamp - Right (Export)
Table 41: Stop Lamp Switch
Table 42: Tail/Stop Lamp - Left/Right (Export)
Table 43: Tow/Haul Switch
Table 44: Turn Signal Lamp - LR (Export)
Table 45: Turn Signal Lamp - RR (Export)
Table 46: Turn Signal/Hazard Flasher Module
Table 47: Vanity Mirror Lamp - Left/Right

Ambient Light Sensor


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Micro-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

705

5-volt Reference

B

TAN

278

Ambient Light Sensor Signal

Ashtray Lamp


Object Number: 38556  Size: CH

Connector Part Information

    • 12124722
    • Lamp Socket Type W-2 Axial (GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2409

Interior Park Lamps Supply Voltage

B

BLK

1050

Ground

Automatic Transmission Shift Lever Position Indicator


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

1220

Instrument Panel Lamp Fuse Supply Voltage - 2

B

BLK

1850

Ground

Backup Lamp - Left/Right (Export)


Object Number: 871665  Size: CH

Connector Part Information

    • 12160386
    • Lamp Socket B1 Base Assembly, Right Angle (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1324

Backup Lamp Supply Voltage

G

BLK

1350

Ground

Backup Lamp - Left/Right (Domestic)


Object Number: 82372  Size: CH

Connector Part Information

    • 12160393
    • Lamp Socket Wedge Base W3 Right Angle (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1324

Backup Lamp Supply Voltage

G

BLK

1350

Ground

Backup Lamp Switch (w/M/T)


Object Number: 516604  Size: CH

Connector Part Information

    • 12103584
    • 2-Way M Weather Pack Series (BRN)

Pin

Wire Color

Circuit No.

Function

A

GRY

1524

Backup Lamp Supply Voltage

B

PNK

839

Ignition 1 Voltage

Cargo Lamp


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

40

Battery Positive Voltage

B

WHT

156

Courtesy Lamp Low Control

Center High Mounted Stop Lamp (CHMSL) (w/Endgate)


Object Number: 35441  Size: CH

Connector Part Information

    • 12059250
    • 2-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1320

CHMSL Supply Voltage

B

BLK

1350

Ground

Courtesy Lamp - Left/Right Console


Object Number: 38559  Size: CH

Connector Part Information

    • 12162285
    • 2-Way Lamp Socket Type W-2 Axial (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

40

Battery Positive Voltage

B

WHT

156

Courtesy Lamp Low Control

Daytime Running Lamps (DRL) Relay (w/ZR2)


Object Number: 95768  Size: CH

Connector Part Information

    • 12065978
    • 5-Way Metri-Pack 480/630 Series (GRY)

Pin

Wire Color

Circuit No.

Function

1

LT GRN/

BLK

592

DRL Relay Control

2

PNK

639

Ignition 1 Voltage

3

BLK

350

Ground

4

YEL

10

Headlamp Switch Signal

5

YEL

525

Headlamp Dimmer Switch Low Beam Signal

Dome Lamp


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

40

Battery Positive Voltage

B

WHT

156

Courtesy Lamp Low Control

Door Handle Switch - Right


Object Number: 38608  Size: CH

Connector Part Information

    • 12162190
    • 4-Way F Metri-Pack 150 Sealed Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1050

Ground

B

DK BLU/

WHT

727

Right Front Door Open Switch Signal

C-D

--

--

Not Used

Door Jamb Switch - Driver


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

Left Front Door Open Switch Signal

B

BLK

1050

Ground

C

--

--

Not Used

Door Jamb Switch - LR/RR


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

Right Front Door Open Switch Signal

Fog Lamp - LF


Object Number: 38554  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

PPL

34

Front Fog Lamp Supply Voltage

B

BLK

150

Ground

Fog Lamp - LR/RR (Export)


Object Number: 62479  Size: CH

Connector Part Information

    • 12160386
    • Lamp Socket Type B-1 Right Angle (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

PPL

34

Fog Lamps Supply Voltage

G

BLK

1350

Ground

Fog Lamp - RF


Object Number: 38554  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

PPL

34

Fog Lamps Supply Voltage

B

BLK

250

Ground

Fog Lamp Switch - Front


Object Number: 40422  Size: CH

Connector Part Information

    • 12064762
    • 6-Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

GRY

1220

Instrument Panel Lamp Fuse Supply Voltage - 2

B-C

--

--

Not Used

D

BLK

1050

Ground

E

ORN

192

Front Fog Lamp Switch Signal

F

PPL

34

Fog Lamps Supply Voltage

Headlamp - High Beam - Left


Object Number: 684797  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

DK GRN/

WHT

711

Left Headlamp High Beam Supply Voltage

B

PPL

524

Headlamp Dimmer Switch High Beam Signal

Headlamp - High Beam - Right


Object Number: 684797  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

DK BLU

198

Right Headlamp Low Beam

B

PPL

524

Headlamp Dimmer Switch High Beam Signal

Headlamp - Low Beam - Left


Object Number: 684796  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

YEL/BLK

712

Left Headlamp Low Beam Supply Voltage

B

YEL

525

Headlamp Dimmer Switch Low Beam Signal

Headlamp - Low Beam - Right


Object Number: 684796  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

DK BLU

198

Fuse Output - Head Lamp - Right - Type III Fuse

B

YEL

525

Headlamp Dimmer Switch Signal Low Beam

Headlamp Leveling Actuator Motor - Left/Right (Export)


Object Number: 358617  Size: CH

Connector Part Information

    • 12162547
    • 3-Way Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK

350

Ground

2

DK GRN

189

Headlamp Leveling Motor Supply Voltage

3

PNK

639

Ignition 1 Voltage

Headlamp Leveling Switch (Export)


Object Number: 68805  Size: CH

Connector Part Information

    • 12162804
    • 5-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

31A

BLK

1050

Ground

31B

--

--

Not Used

56B

PNK

639

Ignition 1 Voltage

58

GRY

1220

Instrument Panel Lamp Fuse Supply Voltage - 2

G

DK GRN

189

Headlamp Leveling Motor Supply Voltage

Headlamp Switch


Object Number: 362755  Size: CH

Connector Part Information

    • 15304617
    • 10-Way F Global Technology 150, 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

74

Park Lamp Switch Signal

B

ORN

240

Battery Supply Voltage

C

WHT

352

Headlamp Relay Coil Supply Voltage

D

ORN

1940

Battery Positive Voltage

E

BLK

1050

Ground

F

--

--

Not Used

G

DK BLU/

WHT

1495

Courtesy Lamp Switch Signal

H

PPL/WHT

549

Headlamp Switch Headlamps OFF Signal

J

PPL

328

Interior Lamp Defeat Switch Signal

K

DK GRN

44

Instrument Panel Lamps Dimmer Switch Signal

Inside Rear View Mirror (w/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

WHT

156

Courtesy Lamp Low Control

B

BLK

1850

Ground

C

ORN

1732

Courtesy Lamp Supply Voltage

D

--

--

Not Used

Inside Rear View Mirror (w/Light Sensor and Reading Lamps)


Object Number: 153632  Size: CH

Connector Part Information

    • 12124782
    • 7-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

BRN

341

Ignition 3 Voltage

2

BLK

1850

Ground

3

LT GRN

1324

Backup Lamp Supply Voltage

4

GRY

1690

Automatic Day/Night Mirror Signal

5

PNK

1691

Automatic Day/Night Mirror Low Reference

6-7

--

--

Not Used

License Lamp - Center (Export)


Object Number: 744036  Size: CH

Connector Part Information

    • 12110053
    • Lamp Socket Type W-2 Axial Bulb Bases (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2109

Trailer Park Lamps Supply Voltage (Export Only)

B

BLK

1650

Ground (Export Only)

License Lamp - LR


Object Number: 744036  Size: CH

Connector Part Information

    • 12110053
    • Lamp Socket Type W-2 Axial Bulb Bases (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2109

Trailer Park Lamp Supply Voltage

B

BLK

1650

Ground

License Lamp - RR


Object Number: 744036  Size: CH

Connector Part Information

    • 12110053
    • Lamp Socket Type W-2 Axial Bulb Bases (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2109

Trailer Park Lamp Supply Voltage (Utility/Export Only)

B

BLK

1650

Ground

Marker Lamp - LF


Object Number: 744036  Size: CH

Connector Part Information

    • 12110053
    • Lamp Socket Type W-2, Axial Bulb Bases (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2309

Front Park Lamps Supply Voltage

B

LT BLU

2114

Left Turn Signal Supply Voltage

B

BLK

150

Ground (Export)

Marker Lamp - LR


Object Number: 744036  Size: CH

Connector Part Information

    • 12110053
    • Lamp Socket Type W-2 Axial Bulb Bases (GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2509

Left Rear Park Lamps Supply Voltage

B

BLK

1750

Ground

Marker Lamp - RF


Object Number: 744036  Size: CH

Connector Part Information

    • 12110053
    • Lamp Socket Type W-2, Axial Bulb Bases (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2309

Front Park Lamps Supply Voltage

B

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

B

BLK

250

Ground-Export

Marker Lamp - RR


Object Number: 744036  Size: CH

Connector Part Information

    • 12110053
    • Lamp Socket Type W-2 Axial Bulb Bases (GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN/WHT

2609

Right Rear Park Lamps Supply Voltage

B

BLK

2250

Ground

Park/Turn Signal Lamp - LF


Object Number: 38605  Size: CH

Connector Part Information

    • 12160394
    • Lamp Socket Wedge Base W-3 (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

B

BRN

2309

Front Park Lamps Supply Voltage

G

BLK

150

Ground

Park/Turn Signal Lamp - LR


Object Number: 38605  Size: CH

Connector Part Information

    • 12160395
    • 3-Way Lamp Socket Base Type W3, Sealed (NAT)

Pin

Wire Color

Circuit No.

Function

A

YEL

618

Turn Signal Lamp Supply Voltage

B

BRN

2509

Left Rear Park Lamps Supply Voltage

G

BLK

1350

Ground

Park/Turn Signal Lamp - RF


Object Number: 38605  Size: CH

Connector Part Information

    • 12160394
    • Lamp Socket Wedge Base W-3 (NAT)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

B

BRN

2309

Front Park Lamps Supply Voltage

G

BLK

250

Ground

Park/Turn Signal Lamp - RR


Object Number: 38605  Size: CH

Connector Part Information

    • 12160395
    • 3-Way Lamp Socket Base Type W3, Sealed (NAT)

Pin

Wire Color

Circuit No.

Function

A

YEL

619

Right Rear Turn Signal Supply Voltage

B

BRN

2609

Right Rear Park Lamp Supply Voltage

G

BLK

1350

Ground

Repeater Lamp - Left (Export)


Object Number: 781760  Size: CH

Connector Part Information

    • 12015792
    • 2-Way F Weather Pack (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

B

BLK

150

Ground

Repeater Lamp - Right (Export)


Object Number: 781760  Size: CH

Connector Part Information

    • 12015792
    • 2-Way F Weather Pack (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

B

BLK

250

Ground

Stop Lamp Switch


Object Number: 62424  Size: CH

Connector Part Information

    • 12040551
    • 6-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Stop Lamp Switch Signal

B

ORN

1540

Battery Positive Voltage

C

PPL

420

TCC Brake Switch

PPL

420

TCC Brake Switch

D

BRN

441

Ignition 3 Voltage

E

LT GRN/

BLK

584

A/T Shift Lock Control Switch Supply Voltage

F

DK GRN/

WHT

1135

A/T Shift Lock Control Solenoid Supply Voltage

Tail/Stop Lamp - Left/Right (Export)


Object Number: 296872  Size: CH

Connector Part Information

    • 12160390
    • Lamp Socket C 2 Base Right Angle (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1320

CHMSL Supply Voltage

B

BRN

2209

Rear Park Lamps Supply Voltage

G

BLK

1350

Ground

Tow/Haul Switch


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

1850

Ground

B

GRY

1220

Instrument Panel Lamp Fuse Supply Voltage - 2

C

--

--

Not Used

D

LT BLU

553

Tow/Haul Switch Signal

Turn Signal Lamp - LR (Export)


Object Number: 62479  Size: CH

Connector Part Information

    • 12160386
    • Lamp Socket Type B-1 Right Angle (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

YEL

618

Left Rear Turn Signal Lamps Supply Voltage

G

BLK

1350

Ground

Turn Signal Lamp - RR (Export)


Object Number: 62479  Size: CH

Connector Part Information

    • 12160386
    • Lamp Socket Type B-1 Right Angle (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

619

Right Rear Turn Signal Lamps Supply Voltage

G

BLK

1350

Ground

Turn Signal/Hazard Flasher Module


Object Number: 281201  Size: CH

Connector Part Information

    • 12110541
    • 6-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

LT BLU

1508

Turn/Hazard Module Supply Voltage

GRY

1696

Turn/Hazard Module 2 Supply Voltage ( Export)

A2

--

--

Not Used

B1

GRY

1696

Turn/Hazard Module 2 Supply Voltage

B2

BLK

1050

Ground

C1

PPL

1697

Turn/Hazard Module Signal

C2

--

--

Not Used

Vanity Mirror Lamp - Left/Right


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1732

Courtesy Lamps Supply Voltage

B

BLK

1850

Ground