GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Blazer - 4WD - RHD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Lighting Systems Connector End Views
Table 1: Ambient Light Sensor
Table 2: Ashtray Lamp
Table 3: Backup Lamp - LH/RH
Table 4: Backup Lamp Switch
Table 5: Cargo Lamp
Table 6: Center High Mounted Stop Lamp (CHMSL)
Table 7: Courtesy Lamp - Left/Right Console
Table 8: Dome Lamp
Table 9: Door Handle Switch - Left
Table 10: Door Handle Switch - Right
Table 11: Door Jamb Switch - Driver
Table 12: Door Jamb Switch - LR/RR
Table 13: Flash-to-Pass Relay Connector
Table 14: Fog Lamp - LF
Table 15: Fog Lamp - RF
Table 16: Fog Lamp - LR/RR
Table 17: Fog Lamp Switch - Front
Table 18: Fog Lamp Switch - Rear
Table 19: Hazard Switch
Table 20: Headlamp Grounding Relay Connector
Table 21: Headlamp - High Beam - Left
Table 22: Headlamp - High Beam - Right
Table 23: Headlamp - Low Beam - Left
Table 24: Headlamp - Low Beam - Right
Table 25: Headlamp Leveling Actuator - Right/Left
Table 26: Headlamp Leveling Switch (U.K., S. Africa)
Table 27: I/P Compartment Lamp
Table 28: I/P Dimmer Switch
Table 29: License Lamp - Center/Left/Right
Table 30: Marker Lamp - LF
Table 31: Marker Lamp - RF
Table 32: Multifunction Switch (T/SIG, HDLP,HDLP/DM and FTP), Connector C1
Table 33: Multifunction Switch (T/SIG, HDLP,HDLP/DM and FTP), Connector C2
Table 34: Park Lamp Switch Relay Connector
Table 35: Repeater Lamp - Left
Table 36: Repeater Lamp - Right
Table 37: Stop Lamp Switch
Table 38: Tail/Stop Lamp - LH/RH
Table 39: Turn Signal Lamp - LF
Table 40: Turn Signal Lamp - RF
Table 41: Turn Signal Lamp - LR
Table 42: Turn Signal Lamp - RR
Table 43: Underhood Lamp
Table 44: Vanity Mirror Lamp - LH/RH

Ambient Light Sensor


Object Number: 82383 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

GRY

705

5 Volt Reference

B

WHT

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

1850

Ground

Backup Lamp - LH/RH


Object Number: 62479 Size: CH

Connector Part Information
    • 12160386
    • Lamp Socket Bulb Base, Type B-1 Right Angle (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1324

Backup Lamp Supply Voltage

G

BLK

1350

Ground

Backup Lamp Switch


Object Number: 516604 Size: CH

Connector Part Information
    • 12103584
    • 2-Way M Weather Pack (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/Courtesy Lamp Switch Signal

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

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/Courtesy Lamp Switch Signal

Dome Lamp


Object Number: 82383 Size: CH

Connector Part Information
    • 12059249
    • 2-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

ORN

40

Battery Positive Voltage

B

WHT

156

Courtesy Lamp Low Control/Courtesy Lamp Switch Signal

Door Handle Switch - Left


Object Number: 38608 Size: CH

Connector Part Information
    • 12162190
    • 4-Way F Metri-Pack 150.2 Series, Sealed, Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1850

Ground

B

DK BLU/

WHT

727

Secondary Door Latch Switch Signal

C

--

--

Not Used

D

ORN

54

Front Door Latch Switch Signal

Door Handle Switch - Right


Object Number: 684806 Size: CH

Connector Part Information
    • 12110196
    • 2-Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

54

Front Door Latch Switch Signal

D

BLK

1850

Ground

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

Right Front Door Open Switch Signal

B

BLK

1850

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

SecondaryDoor Latch Switch Signal

Flash-to-Pass Relay Connector


Object Number: 39685 Size: CH

Connector Part Information
    • 12110539
    • 5-Way F Metri-Pack 280 Series, Flex Lock, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

30

BLK

850

Ground

85

BLK

850

Ground

86

YEL

307

Headlamp Switch Flash To Pass Signal

87

PPL

524

Headlamp Dimmer Switch High Beam Signal

87A

YEL

525

Headlamp Dimmer Switch Low Beam 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

2234

Front Fog Lamp Supply Voltage

B

BLK

150

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

2234

Front Fog Lamp Supply Voltage

B

BLK

250

Ground

Fog Lamp - LR/RR


Object Number: 82372 Size: CH

Connector Part Information
    • 12160386
    •  Lamp Socket Bulb Base, Type B-1, Right Angle (GRA)

Pin

Wire Color

Circuit No.

Function

A

PPL

34

Fog Lamp Supply Voltage

G

BLK

1350

Ground

Fog Lamp Switch - Front


Object Number: 333035 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

ORN

192

Front Fog Lamp Switch Signal

B

BLK

1850

Ground

C

PPL

2234

Front Fog Lamp Supply Voltage

Fog Lamp Switch - Rear


Object Number: 333035 Size: CH

Connector Part Information
    • 12065422
    • 3-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

187

Rear Fog Lamp Switch Signal

B

BLK

1850

Ground

C

PPL

34

Fog Lamps Supply Voltage

Hazard Switch


Object Number: 62464 Size: CH

Connector Part Information
    • 12064769
    • 10-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

BLK

1850

Ground

B

ORN

140

Battery Positive Voltage

C

PNK

139

Ignition 1 Voltage

D

--

--

Not Used

E

GRY

1220

Instrument Panel Lamp Fuse Supply Voltage - 2

F

LT BLU/

WHT

1414

Left Front Turn Signal Switch Signal

G

DK BLU/

WHT

1415

Right Front Turn Signal Switch Signal

H

PPL

16

Turn Signal Flasher Signal

J-K

--

--

Not Used

Headlamp Grounding Relay Connector


Object Number: 39685 Size: CH

Connector Part Information
    • 12110539
    • 5-Way F Metri-Pack 280 Series, Flex Lock, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

30

PPL/WHT

549

Headlamp Switch Headlamps Off Signal

85

BLK

1850

Ground

86

WHT

103

Headlamp Switch Headlamps On Signal

87

BLK

1850

Ground

87A

--

--

Not Used

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

YEL

712

Left Headlamp Low Beam Supply Voltage

B

PPL

524

Headlamp Dimmer 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 Supply Voltage

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

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

Right Headlamp Low Beam Supply Voltage

B

YEL

525

Headlamp Dimmer Switch Low Beam Signal

Headlamp Leveling Actuator - Right/Left


Object Number: 358617 Size: CH

Connector Part Information
    • 12162547
    • 3-Way F 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 (U.K., S. Africa)


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

1850

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

I/P Compartment Lamp


Object Number: 82383 Size: CH

Connector Part Information
    • 12059249
    • 2-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

ORN

1732

Courtesy Lamps Supply Voltage

B

BLK

1850

Ground

I/P Dimmer Switch


Object Number: 362755 Size: CH

Connector Part Information
    • 15304617
    • 10-Way F GT 150, 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

74

Park Lamp Switch Signal

B-D

--

--

Not Used

E

BLK

1850

Ground

F

--

--

Not Used

G

DK BLU/

WHT

1495

Courtesy Lamps ON Signal

H

--

--

Not Used

J

PPL

328

Interior Lamp Defeat Switch Signal

K

DK GRN

44

Instrument Panel Lamps Dimmer Switch Signal

License Lamp - Center/Left/Right


Object Number: 744036 Size: CH

Connector Part Information
    • 12110053
    • Lamp Socket Bulb Base, Type W-2, Axial (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2109

Trailer Park Lamps Supply Voltage

B

BLK

1650

Ground

Marker Lamp - LF


Object Number: 744036 Size: CH

Connector Part Information
    • 12110053
    • Lamp Socket Bulb Base, Type W-2, Axial (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2309

Front Park Lamps Supply Voltage

B

BLK

150

Ground

Marker Lamp - RF


Object Number: 744036 Size: CH

Connector Part Information
    • 12110053
    • Lamp Socket Bulb Base, Type W-2, Axial (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

2309

Front Park Lamps Supply Voltage

B

BLK

250

Ground

Multifunction Switch (T/SIG, HDLP,HDLP/DM and FTP), Connector C1


Object Number: 39660 Size: CH

Connector Part Information
    • 12047785
    • 4-Way F Metri-Pack 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

240

Battery Positive Voltage

B

WHT/BLK

103

Headlamp Switch Headlamps On Signal

C

PPL

256

Park Lamp Supply Voltage

D

--

--

Not Used

Multifunction Switch (T/SIG, HDLP,HDLP/DM and FTP), Connector C2


Object Number: 605486 Size: CH

Connector Part Information
    • 7119-3070
    • 7-Way F Yazaki (NAT)

Pin

Wire Color

Circuit No.

Function

1

DK BLU

1415

Right Front Turn Signal Switch Signal

2

PPL

16

Turn Signal Flasher Signal

3

LT BLU

1414

Left Front Turn Signal Switch Signal

4

LT BLU

1485

Headlamp Control

5

--

--

Not Used

6

YEL

307

Headlamp Switch Flash To Pass Signal

7

BRN

1356

Flash To Pass Switch Signal

Park Lamp Switch Relay Connector


Object Number: 39685 Size: CH

Connector Part Information
    • 12110539
    • 5-Way F Metri-Pack 280 Series, Flex Lock, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

30

LT BLU

74

Park Lamp Switch Signal

85

BLK

850

Ground

86

PPL

256

Park Lamp Supply Voltage

87

ORN

240

Battery Positive Voltage

87A

--

--

Not Used

Repeater Lamp - Left


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


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/Cruise Control Release Signal

D

BRN

441

Ignition 3 Voltage

E

LT GRN/

BLK

584

A/T Shift Lock Control Switch Supply Voltage (Auto Trans Only)

F

DK GRN/

WHT

1135

A/T Shift Lock Control Solenoid Supply Voltage (Auto Trans Only)

Tail/Stop Lamp - LH/RH


Object Number: 296872 Size: CH

Connector Part Information
    • 12160390
    • Lamp Socket Bulb Base, Type C-2, 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

Turn Signal Lamp - LF


Object Number: 38605 Size: CH

Connector Part Information
    • 12160394
    • Lamp Socket Bulb Base, Type W-3, Right Angle (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

B

--

--

Not Used

G

BLK

150

Ground

Turn Signal Lamp - RF


Object Number: 38605 Size: CH

Connector Part Information
    • 12160394
    • Lamp Socket Bulb Base, Type W-3, Right Angle (NAT)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

B

--

--

Not Used

G

BLK

250

Ground

Turn Signal Lamp - LR


Object Number: 62479 Size: CH

Connector Part Information
    • 12160386
    • Lamp Socket Bulb Base, Type B-1, Right Angle (GRY)

Pin

Wire Color

Circuit No.

Function

A

YEL

618

Left Rear Turn Signal Lamp Supply Voltage

G

BLK

1350

Ground

Turn Signal Lamp - RR


Object Number: 62479 Size: CH

Connector Part Information
    • 12160386
    • Lamp Socket Bulb Base, Type B-1, Right Angle (GRY)

Pin

Wire Color

Circuit No.

Function

A

YEL

619

Right Rear Turn Signal Lamp Supply Voltage

G

BLK

1350

Ground

Underhood Lamp


Object Number: 362740 Size: CH

Connector Part Information
    • 12162545
    • 1-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

ORN

1732

Courtesy Lamps Supply Voltage

Vanity Mirror Lamp - LH/RH


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/BLK

1732

Courtesy Lamps Supply Voltage

B

BLK

1850

Ground