GM Service Manual Online
For 1990-2009 cars only
Table 1: Ambient Light Sensor
Table 2: Backup Lamp - Left (Coupe)
Table 3: Backup Lamp - Right (Coupe)
Table 4: Backup Lamp - Left (Sedan)
Table 5: Backup Lamp - Right (Sedan)
Table 6: Backup Lamp Switch (M86/MU3)
Table 7: Center High Mounted Stop Lamp (CHMSL)
Table 8: Dome Lamp (w/o CF5)
Table 9: Door Jamb Switch - Driver
Table 10: Door Jamb Switch - LR (Sedan)
Table 11: Door Jamb Switch - Passenger
Table 12: Door Jamb Switch - RR (Sedan)
Table 13: Fog Lamp - LF (T37)
Table 14: Fog Lamp - RF (T37)
Table 15: Fog Lamp Switch (T37)
Table 16: Hazard Switch
Table 17: Headlamp High / Low Beam - Right
Table 18: Headlamp High / Low Beam - Left
Table 19: I/P Dimmer Switch
Table 20: License Lamp
Table 21: Marker Lamp - LR (Coupe)
Table 22: Marker Lamp - RR (Coupe)
Table 23: Marker Lamp - LF
Table 24: Marker Lamp - RF
Table 25: Marker Lamp - LR (Sedan)
Table 26: Marker Lamp - LR (Sedan)
Table 27: Park/Turn Signal DRL Lamp - LF
Table 28: Park/Turn Signal DRL Lamp - RF
Table 29: Rear Compartment Courtesy Lamp
Table 30: Stop Lamp Switch
Table 31: Stop/Tail and Turn Signal Lamp - Left (Coupe)
Table 32: Stop/Tail and Turn Signal Lamp - Right (Coupe)
Table 33: Stop/Tail and Turn Signal Lamp - Left (Sedan)
Table 34: Stop/Tail and Turn Signal Lamp - Right (Sedan)
Table 35: Turn Signal/Multifunction Switch C1
Table 36: Turn Signal/Multifunction Switch C2

Ambient Light Sensor


Object Number: 82383  Size: CH

Connector Part Information

    • OEM: 12059249
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

1137

DRL Ambient Light Sensor Signal

B

YE/BK

1138

DRL Ambient Light Sensor Low Reference

Backup Lamp - Left (Coupe)


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN

24

Backup Lamp Supply Voltage

B

BK

750

Ground

Backup Lamp - Right (Coupe)


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN

24

Backup Lamp Supply Voltage

B

BK

850

Ground

Backup Lamp - Left (Sedan)


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

L-GN

24

Backup Lamp Supply Voltage

B

BK

750

Ground

BK

750

Ground

Backup Lamp - Right (Sedan)


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

L-GN

24

Backup Lamp Supply Voltage

B

BK

850

Ground

BK

850

Ground

Backup Lamp Switch (M86/MU3)


Object Number: 635009  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: 12102747
    •  2-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

539

Ignition 1 Voltage

B

L-GN

24

Backup Lamp Supply Voltage

Center High Mounted Stop Lamp (CHMSL)


Object Number: 704047  Size: CH

Connector Part Information

    • OEM: 12059110
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU

20

Stop Lamp Supply Voltage

B

BK

750

Ground

Dome Lamp (w/o CF5)


Object Number: 130635  Size: CH

Connector Part Information

    • OEM: 12045813
    • Service: See Catalog
    •  4-Way F Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

BK

750

Ground

B

GY

157

Interior Lamp Control

C

--

--

Not Used

D

D-BU/WH

149

Courtesy Lamp Supply Voltage

Door Jamb Switch - Driver


Object Number: 1538760  Size: CH

Connector Part Information

    • OEM: 15449028
    • Service: See Catalog
    •  2-Way F GT 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

GY/BK

745

Left Front Door Ajar Switch Signal

B

BK/WH

650

Ground

Door Jamb Switch - LR (Sedan)


Object Number: 1538760  Size: CH

Connector Part Information

    • OEM: 15449028
    • Service: See Catalog
    •  2-Way F GT 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

747

Left Rear Door Ajar Switch Signal

B

BK

650

Ground

Door Jamb Switch - Passenger


Object Number: 1538760  Size: CH

Connector Part Information

    • OEM: 15449028
    • Service: See Catalog
    •  2-Way F GT 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

TN/WH

746

Right Front Door Ajar Switch Signal

B

BK

650

Ground

Door Jamb Switch - RR (Sedan)


Object Number: 1538760  Size: CH

Connector Part Information

    • OEM: 15449028
    • Service: See Catalog
    •  2-Way F GT 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

748

Right Rear Door Ajar Switch Signal

B

GY/BK

1798

Low Reference

Fog Lamp - LF (T37)


Object Number: 1413064  Size: CH

Connector Part Information

    • OEM: 12124819
    • Service: See Catalog
    •  2-Way F Metri-Pack 280 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

PU

2234

Front Fog Lamp Supply Voltage

B

BK

150

Ground

Fog Lamp - RF (T37)


Object Number: 1413064  Size: CH

Connector Part Information

    • OEM: 12124819
    • Service: See Catalog
    •  2-Way F Metri-Pack 280 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

PU

2234

Front Fog Lamp Supply Voltage

B

BK

250

Ground

Fog Lamp Switch (T37)


Object Number: 1283883  Size: CH

Connector Part Information

    • OEM: 15419483
    • Service: See Catalog
    •  4-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BK/WH

1051

Signal Ground

B

--

--

Not Used

C

OG

192

Front Fog Lamp Switch Signal

D

GY

8

Instrument Panel Lamp Supply Voltage (1)

Hazard Switch


Object Number: 39665  Size: CH

Connector Part Information

    • OEM: 12089248
    • Service: See Catalog
    •  4-Way F Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

GY

8

Instrument Panel Lamp Supply Voltage (1)

C

--

--

Not Used

D

WH

111

Hazard Switch Signal

Headlamp High / Low Beam - Right


Object Number: 808663  Size: CH

Connector Part Information

    • OEM: 12048369
    • Service: See Catalog
    •  3-Way F Metri-Pack 280 Series Sealed (BU)

Pin

Wire Color

Circuit No.

Function

A

OG

312

Right Headlamp Low Beam Supply Voltage

B

BK

250

Ground

C

PK

311

Right Headlamp High Beam Supply Voltage

Headlamp High / Low Beam - Left


Object Number: 808663  Size: CH

Connector Part Information

    • OEM: 12048369
    • Service: See Catalog
    •  3-Way F Metri-Pack 280 Series Sealed (BU)

Pin

Wire Color

Circuit No.

Function

A

OG

712

Left Headlamp Low Beam Supply Voltage

B

BK

150

Ground

C

PK

711

Left Headlamp High Beam Supply Voltage

I/P Dimmer Switch


Object Number: 646420  Size: CH

Connector Part Information

    • OEM: 15332135
    • Service: See Catalog
    •  4-Way F GT 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

PU

719

Sensor Low Reference

D

D-GN

44

Instrument Panel Lamp Dimmer Switch Signal

License Lamp


Object Number: 635009  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

BN

9

Park Lamp Supply Voltage

B

BK

750

Ground

Marker Lamp - LR (Coupe)


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BN

9

Park Lamp Supply Voltage

B

BK

750

Ground

Marker Lamp - RR (Coupe)


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BN

9

Park Lamp Supply Voltage

B

BK

850

Ground

Marker Lamp - LF


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 16530675
    • Service: See Catalog
    •  2-Way F (GY)

Pin

Wire Color

Circuit No.

Function

A

BN

9

Park Lamp Supply Voltage

B

BK

150

Ground

Marker Lamp - RF


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 16530675
    • Service: See Catalog
    •  2-Way F (GY)

Pin

Wire Color

Circuit No.

Function

A

BN

9

Park Lamp Supply Voltage

B

BK

250

Ground

Marker Lamp - LR (Sedan)


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BN

9

Park Lamp Supply Voltage

B

BK

750

Ground

Marker Lamp - LR (Sedan)


Object Number: 877923  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

BN

9

Park Lamp Supply Voltage

B

BK

750

Ground

Park/Turn Signal DRL Lamp - LF


Object Number: 877925  Size: CH

Connector Part Information

    • OEM: 0001340
    • Service: See Catalog
    • 3-Way F CE-F22.2 Series Bulbsocket (BG)

Pin

Wire Color

Circuit No.

Function

A

L-BU

14

Left Turn Signal Lamp Supply Voltage

B

BN

9

Park Lamp Supply Voltage

BN

9

Park Lamp Supply Voltage

G

BK

150

Ground

BK

150

Ground

Park/Turn Signal DRL Lamp - RF


Object Number: 877925  Size: CH

Connector Part Information

    • OEM: 0001340
    • Service: See Catalog
    •  3-Way F CE-F22.2 Series Bulbsocket (BG)

Pin

Wire Color

Circuit No.

Function

A

D-BU

15

Right Turn Signal Lamp Supply Voltage

B

BN

9

Park Lamp Supply Voltage

BN

9

Park Lamp Supply Voltage

G

BK

250

Ground

BK

250

Ground

Rear Compartment Courtesy Lamp


Object Number: 82383  Size: CH

Connector Part Information

    • OEM: 12059249
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

BK

750

Ground

B

OG/BK

750

Trunk Lamp Control

Stop Lamp Switch


Object Number: 73251  Size: CH

Connector Part Information

    • OEM: 12033701
    • Service: See Catalog
    •  2-Way F Metri-Pack 480 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

RD/WH

140

Battery Positive Voltage

B

L-BU

20

Stop Lamp Supply Voltage

L-BU

20

Stop Lamp Supply Voltage

Stop/Tail and Turn Signal Lamp - Left (Coupe)


Object Number: 877925  Size: CH

Connector Part Information

    • OEM: 12040977
    • Service: See Catalog
    •  3-Way F Metri-Pack 280 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

YE

18

Left Rear Stop/Turn Lamp Supply Voltage

B

BN

9

Park Lamp Supply Voltage

G

BK

750

Ground

Stop/Tail and Turn Signal Lamp - Right (Coupe)


Object Number: 877925  Size: CH

Connector Part Information

    • OEM: 12040977
    • Service: See Catalog
    •  3-Way F Metri-Pack 280 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

D-GN

19

Right Rear Stop/Turn Lamp Supply Voltage

B

BN

9

Park Lamp Supply Voltage

G

BK

850

Ground

Stop/Tail and Turn Signal Lamp - Left (Sedan)


Object Number: 877925  Size: CH

Connector Part Information

    • OEM: 16530671
    • Service: See Catalog
    •  3-Way F (GY)

Pin

Wire Color

Circuit No.

Function

A

YE

18

Left Rear Stop/Turn Lamp Supply Voltage

B

BN

9

Park Lamp Supply Voltage

BN

9

Park Lamp Supply Voltage

G

BK

750

Ground

BK

750

Ground

Stop/Tail and Turn Signal Lamp - Right (Sedan)


Object Number: 877925  Size: CH

Connector Part Information

    • OEM: 16530671
    • Service: See Catalog
    •  3-Way F (GY)

Pin

Wire Color

Circuit No.

Function

A

YE

19

Left Rear Stop/Turn Lamp Supply Voltage

B

BN

9

Park Lamp Supply Voltage

BN

9

Park Lamp Supply Voltage

G

BK

850

Ground

BK

850

Ground

Turn Signal/Multifunction Switch C1


Object Number: 1376709  Size: CH

Connector Part Information

    • OEM: 15450317
    • Service: See Catalog
    •  8-Way F Misc (WH)

Pin

Wire Color

Circuit No.

Function

1

BK/WH

651

Signal Ground

2

WH

103

Headlamp Switch On Signal

3

BN/WH

301

Park Lamp Switch On Signal

4

PU/WH

549

Headlamp Switch Headlamps Off Signal

5-8

--

--

Not Used

Turn Signal/Multifunction Switch C2


Object Number: 845610  Size: CH

Connector Part Information

    • OEM: 15393435
    • Service: See Catalog
    •  10-Way F Micro-Pack 064 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

BK/WH

651

Signal Ground

C

BN

1356

Flash To Pass Switch Signal

D

PU

524

Headlamp Dimmer Switch High Beam Signal

E

PK/WH

1970

Headlamp Low Beam Relay Control

F

YE

10

Headlamp Switch Signal

G

YE/BK

1418

Left Rear Turn Signal Switch Signal

H

D-GN/WH

1419

Right Rear Turn Signal Switch Signal

J-K

--

--

Not Used