GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2003 🢒 Ascender - 4WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Lighting Systems Connector End Views
Table 1: Ambient Light Sensor (w/CJ3)
Table 2: Backup Lamp - Left
Table 3: Backup Lamp - Right
Table 4: Cargo Lamp
Table 5: Center High Mounted Stop Lamp (CHMSL)
Table 6: Cornering Lamp - Left
Table 7: Cornering Lamp - Right
Table 8: Courtesy/Reading Lamp - LF
Table 9: Courtesy/Reading Lamp - Left Center
Table 10: Courtesy/Reading Lamp - LR
Table 11: Courtesy/Reading Lamp - RF
Table 12: Courtesy/Reading Lamp - Right Center
Table 13: Courtesy/Reading Lamp - RR
Table 14: Fog Lamp - LF
Table 15: Fog Lamp - RF
Table 16: Headlamp - Left
Table 17: Headlamp - Right
Table 18: Headlamp Switch C1
Table 19: Headlamp Switch C2
Table 20: License Lamp - Left
Table 21: License Lamp - Right
Table 22: Marker Lamp - LF
Table 23: Marker Lamp - RF
Table 24: Miniwedge (Door Jamb Switch) - Driver
Table 25: Miniwedge (Door Jamb Switch) - Front Passenger
Table 26: Miniwedge (Door Jamb Switch) - LR
Table 27: Miniwedge (Door Jamb Switch) - RR
Table 28: Miniwedge (Door Jamb Switch) - Lift Gate
Table 29: Park/Turn Signal Lamp - LF
Table 30: Park/Turn Signal Lamp - RF
Table 31: Stop Lamp Switch
Table 32: Tail Lamp Assembly - Left
Table 33: Tail Lamp Assembly - Right
Table 34: Trailer Connector
Table 35: Turn Signal/Multi-function Switch C1
Table 36: Turn Signal/Multi-function Switch C2
Table 37: Turn Signal/Multi-function Switch C3
Table 38: Turn Signal/Multi-function Switch C4
Table 39: Turn Signal/Hazard Flasher Module
Table 40: Vanity Mirror Lamp - LF
Table 41: Vanity Mirror Lamp - RF

Ambient Light Sensor (w/CJ3)


Object Number: 82383 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

WHT

278

Ambient Light Sensor Signal

B

BLK

279

Ambient Light Sensor Low Reference

Backup Lamp - Left


Object Number: 82366 Size: CH

Connector Part Information
    • 12092379
    • 3-Way Lamp Socket Wedge Base W3 (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Backup Lamp Supply Voltage

B

--

--

Not Used

G

BLK

2450

Ground

Backup Lamp - Right


Object Number: 82366 Size: CH

Connector Part Information
    • 12092379
    • 3-Way Lamp Socket Wedge Base W3 (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Backup Lamp Supply Voltage

B

--

--

Not Used

G

BLK

2450

Ground

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

BLK

1350

Ground

B

GRY/BLK

690

Courtesy Lamp Supply Voltage

Center High Mounted Stop Lamp (CHMSL)


Object Number: 35441 Size: CH

Connector Part Information
    • 12047663
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

820

CHMSL Supply Voltage

B

BLK

1550

Ground

Cornering Lamp - Left


Object Number: 744054 Size: CH

Connector Part Information
    • 15326291
    • 3-Way Lamp Socket Wedge Base W3 Sealed Right Angle (NAT)

Pin

Wire Color

Circuit No.

Function

A

ORN

57

Left Cornering Lamp Supply Voltage

G

BLK

350

Ground

Cornering Lamp - Right


Object Number: 744054 Size: CH

Connector Part Information
    • 15326291
    • 3-Way /Lamp Socket Wedge Base W3 Sealed Right Angle (NAT)

Pin

Wire Color

Circuit No.

Function

A

BLK

58

Right Cornering Lamp Supply Voltage

G

BLK

250

Ground

Courtesy/Reading Lamp - LF


Object Number: 333035 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

GRY/BLK

690

Courtesy Lamp Supply Voltage

B

BLK

1350

Ground

C

ORN

1732

Inadvertent Power Courtesy Lamps Supply Voltage

Courtesy/Reading Lamp - Left Center


Object Number: 333035 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

GRY/BLK

690

Courtesy Lamp Supply Voltage

B

BLK

1350

Ground

C

ORN

1732

Inadvertent Power Courtesy Lamps Supply Voltage

Courtesy/Reading Lamp - LR


Object Number: 333035 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

GRY/BLK

690

Courtesy Lamp Supply Voltage

B

BLK

1350

Ground

C

ORN

1732

Inadvertent Power Courtesy Lamps Supply Voltage

Courtesy/Reading Lamp - RF


Object Number: 333035 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

GRY/BLK

690

Courtesy Lamp Supply Voltage

B

BLK

1350

Ground

C

ORN

1732

Inadvertent Power Courtesy Lamps Supply Voltage

Courtesy/Reading Lamp - Right Center


Object Number: 333035 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

GRY/BLK

690

Courtesy Lamp Supply Voltage

B

BLK

1350

Ground

C

ORN

1732

Inadvertent Power Courtesy Lamps Supply Voltage

Courtesy/Reading Lamp - RR


Object Number: 333035 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

GRY/BLK

690

Courtesy Lamp Supply Voltage

B

BLK

1350

Ground

C

ORN

1732

Inadvertent Power Courtesy Lamps Supply Voltage

Fog Lamp - LF


Object Number: 646148 Size: CH

Connector Part Information
    • 12020599
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

34

Fog Lamps Supply Voltage

B

BLK

350

Ground

Fog Lamp - RF


Object Number: 646148 Size: CH

Connector Part Information
    • 12020599
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

34

Front Fog Lamps Supply Voltage

B

BLK

250

Ground

Headlamp - Left


Object Number: 697046 Size: CH

Connector Part Information
    • 12186568
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN/

WHT

711

Left Headlamp High Beam Supply Voltage

B

YEL

712

Left Headlamp Low Beam Supply Voltage

C

BLK

350

Ground

D

BLK

350

Ground

Headlamp - Right


Object Number: 697046 Size: CH

Connector Part Information
    • 12186568
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

311

Right Headlamp High Beam Supply Voltage

B

TAN/WHT

312

Right Headlamp Low Beam Supply Voltage

C

BLK

250

Ground

D

BLK

250

Ground

Headlamp Switch C1


Object Number: 647976 Size: CH

Connector Part Information
    • 15332161
    • 12-Way F GT 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

705

5-Volt Reference

B

BRN/WHT

230

Instrument Panel Lamps Dimming Control

C

BLK

2250

Ground

D

WHT

103

Headlamp Switch Headlamps On Signal

E

GRY/BLK

308

Park Lamp Switch On Signal

F

LT GRN

5462

DRL Defeat Switch Signal

G

ORN/BLK

2090

Courtesy Lamps Dimming Input

H

GRY/BLK

2226

Instrument Panel Lamps Dimmer Switch Low Reference

J

DK BLU/WHT

1495

Courtesy Lamp On Signal

K

PPL/WHT

1382

LED Dimming Signal

L

PNK

1348

Headlamp On Indicator Control

M

PPL

328

Interior Lamp Defeat Switch Signal

Headlamp Switch C2


Object Number: 646374 Size: CH

Connector Part Information
    • 15332145
    • 8-Way F GT 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

192

Front Fog Lamp Switch Signal

B

--

--

Not Used

C

DK GRN/

WHT

1317

Front Fog Lamp Relay and Indicator Control

D

--

--

Not Used

E

TAN

5463

DRL Defeat On Indicator Control

F

DK GRN

189

Headlamp Leveling Motor Supply Voltage (w/TR6)

G

PNK

639

Ignition 1 Voltage (w/TR6)

H

BRN/WHT

1871

Headlamp Washer Switch Signal (w/CE4)

License Lamp - Left


Object Number: 130733 Size: CH

Connector Part Information
    • 12146418
    • 2-Way Lamp Socket (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2509

Left Rear Park Lamps and License Lamps Supply Voltage

B

BLK

1550

Ground

License Lamp - Right


Object Number: 130733 Size: CH

Connector Part Information
    • 12146418
    • 2-Way Lamp Socket (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2509

Left Rear Park Lamps and License Lamps Supply Voltage

B

BLK

1550

Ground

Marker Lamp - LF


Object Number: 744036 Size: CH

Connector Part Information
    • 12110053
    • 2-Way F/Lamp Socket Wedge Base W2 (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2309

Front Park Lamps Supply Voltage

B

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

Marker Lamp - RF


Object Number: 744036 Size: CH

Connector Part Information
    • 12110053
    • 2-Way F/Lamp Socket Wedge Base W2 (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

Miniwedge (Door Jamb Switch) - Driver


Object Number: 684972 Size: CH

Connector Part Information
    • 15366025
    • 2-Way F GT 150 Sealed 3.2 X 4.0 (GRY)

Pin

Wire Color

Circuit No.

Function

B

GRY/BLK

745

Left Front Door Ajar Switch Signal

D

BRN

1183

Left Front Door Switch Low Reference

Miniwedge (Door Jamb Switch) - Front Passenger


Object Number: 684974 Size: CH

Connector Part Information
    • 15366027
    • 2-Way F GT 150 Sealed 3.2 X 4.0 (BLU)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

1178

Right Front Door Switch Low Reference

C

BLK/WHT

746

Right Front Door Ajar Switch Signal

Miniwedge (Door Jamb Switch) - LR


Object Number: 684972 Size: CH

Connector Part Information
    • 15366025
    • 2-Way F GT 150 Sealed 3.2 X 4.0 (GRY)

Pin

Wire Color

Circuit No.

Function

B

LT BLU/BLK

747

Left Rear Door Ajar Switch Signal

D

BLK

1350

Ground

Miniwedge (Door Jamb Switch) - RR


Object Number: 684974 Size: CH

Connector Part Information
    • 15366027
    • 2-Way F GT 150 Sealed 3.2 X 4.0 (BLU)

Pin

Wire Color

Circuit No.

Function

A

BLK

1450

Ground

C

LT GRN/BLK

748

Right Rear Door Ajar Switch Signal

Miniwedge (Door Jamb Switch) - Lift Gate


Object Number: 684972 Size: CH

Connector Part Information
    • 15366027
    • 4-Way F GT 150 Sealed 3.2 X 4.0 (BLK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

PNK/BLK

1303

Lift Gate Ajar Switch Signal

C

--

--

Not Used

D

DK BLU

2201

Lift Gate Ajar Switch Low Reference

Park/Turn Signal Lamp - LF


Object Number: 95769 Size: CH

Connector Part Information
    • 12160395
    • 3-Way Lamp Socket Wedge Base W3 Right Angle (MD GRY)

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

350

Ground

Park/Turn Signal Lamp - RF


Object Number: 95769 Size: CH

Connector Part Information
    • 12160395
    • 3-Way Lamp Socket Wedge Base W3 Right Angle (MD GRY)

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

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

WHT

17

Stop Lamp Switch Signal

B

ORN

1540

Battery Positive Voltage

C

PPL

420

TCC Brake Switch Signal

D

PNK

639

Ignition 1 Voltage

E

DK GRN/

WHT

1135

A/T Shift Lock Control Solenoid Supply Voltage

F

LT GRN/BLK

584

A/T Shift Lock Control Switch Supply Voltage

Tail Lamp Assembly - Left


Object Number: 684983 Size: CH

Connector Part Information
    • 15355207
    • 5-Way F GT 150 Sealed 4.0 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1320

CHMSL Supply Voltage

B

--

--

Not Used

C

BRN

2509

Left Rear Park Lamps and License Lamps Supply Voltage

D

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

E

BLK

1550

Ground

Tail Lamp Assembly - Right


Object Number: 684983 Size: CH

Connector Part Information
    • 15355207
    • 5-Way F GT 150 Sealed 4.0 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1320

CHMSL Supply Voltage

B

--

--

Not Used

C

BRN/WHT

2609

Right Rear Park Lamps Supply Voltage

D

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

E

BLK

1650

Ground

Trailer Connector


Object Number: 525095 Size: CH

Connector Part Information
    • 15354653
    • 7-Way F Metri-Pack 280 Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1624

Trailer Backup Lamps Supply Voltage

B

WHT

22

Ground

C

DK BLU

47

Trailer Auxiliary Supply Voltage

D

DK GRN

1619

Trailer Right Rear Turn/Stop Lamp Supply Voltage

E

RED

742

Battery Positive Voltage

F

BRN

2109

Trailer Park Lamps Supply Voltage

G

YEL

1618

Trailer Left Rear Turn/Stop Lamp Supply Voltage

Turn Signal/Multi-function Switch C1


Object Number: 39746 Size: CH

Connector Part Information
    • 12064862
    • 8-Way F Metri-Pack 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1427

Right Turn Signal Switch Signal

B

PNK

639

Ignition 1 Voltage

C

DK GRN

1428

Left Turn Signal Switch Signal

D

ORN

57

Left Cornering Lamp Supply Voltage

E

BRN

2309

Front Park Lamps Supply Voltage

F

BLK

58

Right Cornering Lamp Supply Voltage

G

--

--

Not Used

H

WHT

111

Hazard Switch Signal

Turn Signal/Multi-function Switch C2


Object Number: 130718 Size: CH

Connector Part Information
    • 12059800
    • 5-Way F Metri-Pack 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

751

Ground

B

YEL

307

Headlamp Switch Flash To Pass Signal

C

LT GRN

11

Headlamp High Beam Supply Voltage

D

--

--

Not Used

E

--

--

Not Used

Turn Signal/Multi-function Switch C3


Object Number: 811190 Size: CH

Connector Part Information
    • 15339058
    • 7-Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit Number

Function

G

--

--

Not Used

H

PNK

94

Windshield Washer Switch Signal

J

GRY

478

Windshield Wiper Switch Supply Voltage

K

DK BLU/

WHT

477

Windshield Wiper Switch High Signal

L-N

--

--

Not Used

Turn Signal/Multi-function Switch C4


Object Number: 39661 Size: CH

Connector Part Information
    • 12047796
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit Number

Function

A

BRN

341

Ignition Voltage

B

GRY

397

Cruise Control On Switch Signal

C

GRY

87

Cruise Control Resume/Accel Switch Signal

D

DK BLU

84

Cruise Control Set/Coast Switch Signal

Turn Signal/Hazard Flasher Module


Object Number: 697011 Size: CH

Connector Part Information
    • 15355303
    • 10-Way F GT 280 (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1427

Right Turn Signal Switch Signal

B

WHT

17

Stop Lamp Switch Signal

C

YEL

18

Left Rear Stop/Turn Lamp Supply Voltage

D

DK GRN

19

Right Rear Stop/Turn Lamp Supply Voltage

E

BLK

2250

Ground

F

DK GRN

1428

Left Turn Signal Switch Signal

G

WHT

111

Hazard Switch Signal

H

YEL

685

Left Turn Signal Flasher Signal

J

TAN

686

Right Turn Signal Flasher Signal

K

ORN

140

Battery Positive Voltage

Vanity Mirror Lamp - LF


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

Inadvertent Lamps Courtesy Lamps Supply Voltage

B

BLK

1350

Ground

Vanity Mirror Lamp - RF


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

Inadvertent Power Courtesy Lamps Supply Voltage

B

BLK

1350

Ground