GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC K Pickup - 4WD 🢒 Body and Accessories 🢒 Body Control System 🢒 Lighting Systems Connector End Views
Table 1: Ashtray Lamp
Table 2: Backup Lamp Switch (Manual Transmision)
Table 3: Cargo Lamp Switch
Table 4: Courtesy Lamp
Table 5: Cargo Lamp and Center High Mounted Stop Lamp (03, 43, 53)
Table 6: Center High Mounted Stoplamp (06,16)
Table 7: Daytime Running Lamp Control Module
Table 8: Daytime Running Lamp Diode Module
Table 9: Dome Lamps
Table 10: Door Jamb Switch, Cargo
Table 11: Door Jamb Switch, LF
Table 12: Door Jamb Switch, RF
Table 13: Door Jamb Switch, Liftgate
Table 14: DRL & Radio Override (Z56 Only)
Table 15: Fog Lamp, LH
Table 16: Fog Lamp, RH
Table 17: Fog Lamp Switch (Except Luxury)
Table 18: Fog Lamp Switch (Luxury)
Table 19: Headlamp, LH
Table 20: Headlamp, RH
Table 21: Headlamp, Left High Beam
Table 22: Headlamp Low Beam, LH
Table 23: Headlamp Low Beam, RH
Table 24: Headlamp, Right High Beam
Table 25: Headlamp Control Module C1
Table 26: Headlamp Control Module C2
Table 27: Headlamp Panel Dimmer Switch
Table 28: Instrument Panel (IP) Compartment Lamp
Table 29: Interior Lamp Control Module
Table 30: License Lamps LH, RH
Table 31: Marker Lamp, Left
Table 32: Marker Lamp, Right
Table 33: Park and Turn Signal Lamps, Left Front
Table 34: Park and Turn Signal Lamps, Right Front
Table 35: Roof Marker Lamps
Table 36: Sunshade Mirror Lamp, Left
Table 37: Stop Lamp/TCC Switch
Table 38: Sunshade Mirror Lamp, Right
Table 39: Tail and Stop Lamp, Left
Table 40: Tail and Stop Lamp, Right
Table 41: Underhood Lamp

Ashtray Lamp


Object Number: 38556 Size: CH

Connector Part Information
    • 12124722
    • 2 Way M Micro-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

9

Lamp Feed

B

BLK

150

Ground

Backup Lamp Switch (Manual Transmision)


Object Number: 38552 Size: CH

Connector Part Information
    • 12103583
    • 2M Weather Pack (BRN)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Back-Up Lamp Feed

B

PNK

139

Fuse Output Ignition 1 Type III Fuse

Cargo Lamp Switch


Object Number: 95855 Size: CF

Connector Part Information
    • 12129136
    • 4F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Feed

B

BLK

150

Ground

C

ORN

40

Fuse Output - Battery Type III Fuse

D

DK BLU/WHT

149

Courtesy Lamp Feed

Courtesy Lamp


Object Number: 365949 Size: CH

Connector Part Information
    • 12084388
    • 2 Way Lamp Socket Type W - Axial (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

40

Fuse Output - Battery

B

WHT

156

Courtesy Lamp Output

Cargo Lamp and Center High Mounted Stop Lamp (03, 43, 53)


Object Number: 39660 Size: CH

Connector Part Information
    • 12047785
    • 2 Way Lamp Socket Type W - Axial (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

156

Courtesy Lamp Output

B

WHT

150

Ground

C

DK BLU/WHT

149

Courtesy Lamp Feed

D

WHT

17

Stop Lamp Switch Output

Center High Mounted Stoplamp (06,16)


Object Number: 35441 Size: CH

Connector Part Information
    • 12047663
    • Lamp Socket Wedge Base W2 Right Angle (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Stop Lamp Switch Output

B

BLK

150

Ground

Daytime Running Lamp Control Module


Object Number: 283863 Size: CH

Connector Part Information
    • 15305438
    • 8 Way P/C Edgeboard (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1134

Park Brake Switch Signal Input

B

LT BLU

1134

Park Brake Switch Signal Input

C

PNK

39

Fuse Output - Ignition 1 - Type III Fuse

C

PNK/BLK

939

Aux-Fuse Output Z56(Only)

D

YEL

10

Headlamp Switch Output

E

TAN/WHT

33

Park Lamp Feed

F

TAN/WHT

33

DRL Lamp Feed

G

LT GRN/BLK

592

DRL Relay Output

H

BLK

150

Ground

Daytime Running Lamp Diode Module


Object Number: 35456 Size: CH

Connector Part Information
    • 12064749
    • 2 Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

340

Fuse Output - Battery - Type III Fuse

B

YEL

634

Reduced Voltage Feed

Dome Lamps


Object Number: 68722 Size: CH

Connector Part Information
    • 15528758
    • 2-Way Base (NAT)

Pin

Wire Color

Circuit No.

Function

A

ORN

40

Fuse Output - Battery Type II Fuse

B

WHT

156

Courtesy LAMP Output

Door Jamb Switch, Cargo


Object Number: 35451 Size: CH

Connector Part Information
    • 12059251
    • 2 Way F Metri-Pack 150 (RED)

Pin

Wire Color

Circuit No.

Function

A

GRN/BLK

1897

Dome Lamp Defeat Switch Output (w/o Keyless Entry

B

BLK

150

Ground

Door Jamb Switch, LF


Object Number: 333035 Size: CH

Connector Part Information
    • 12047781
    • 3 Way Dome Lamp Base (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

328

Dome Lamp Defeat Switch Output (w/o Keyless Entry)

B

BLK

150

Ground

C

TAN

159

Key Reminder Switch Output

Door Jamb Switch, RF


Object Number: 333035 Size: CH

Connector Part Information
    • 12047781
    • 3 Way Dome Lamp Base (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

328

Dome Lamp Defeat Switch Output (w/o Keyless Entry

B

BLK

150

Ground

C

--

--

Not Used

Door Jamb Switch, Liftgate


Object Number: 35451 Size: CH

Connector Part Information
    • 12059251
    • 2 Way Dome Lamp Base (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

328

Interior Lamp Defeat Switch Output

B

BLK

150

Ground

DRL & Radio Override (Z56 Only)


Object Number: 62456 Size: CH

Connector Part Information
    • 12064752
    • 6F Metri-Pack Series 280 (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Feed

B

BLK

150

Ground

C

PPL/WHT

1382

LED Dimming Switch

D

PNK

39

Fuse Output - Ignition 1 Type III Fuse

E

PNK/BLK

939

Fuse Output - Ignition 1 Type III Fuse

F

PPL/WHT

982

Radio Park Lamp Feed

Fog Lamp, LH


Object Number: 258174 Size: CH

Connector Part Information
    • 12015792
    • 2F Weather Pack TWR (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

PPL

34

Fog Lamp Feed

Fog Lamp, RH


Object Number: 258174 Size: CH

Connector Part Information
    • 12015792
    • 2F Weather Pack TWR (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

250

Ground

B

PPL

34

Fog Lamp Feed

Fog Lamp Switch (Except Luxury)


Object Number: 62456 Size: CH

Connector Part Information
    • 12064752
    • 6 Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

YEL

317

Fog Lamp Relay Feed - Coil

B

--

--

Not Used

C

BRN

9

Park Lamp Feed

D

PPL

34

Fog lamp Feed

E

BLK

150

Ground

F

GRY

8

Instrument Panel Lamp Feed

Fog Lamp Switch (Luxury)


Object Number: 62456 Size: CH

Connector Part Information
    • 12064752
    • 6 Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Feed

B

YEL

317

Fog Lamp Relay Feed - Coil

C

--

--

Not Used

D

BRN

9

Park Lamp Feed

E

PPL

34

Fog lamp Feed

F

BLK

150

Ground

Headlamp, LH


Object Number: 306269 Size: CH

Connector Part Information
    • 12034372
    • 3 Way F Metri-Pack 800 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

LT GRN

11

High Beam Headlamp Feed

C

TAN

12

Low Beam Headlamp Feed

Headlamp, RH


Object Number: 306269 Size: CH

Connector Part Information
    • 12034372
    • 3 Way F Metri-Pack 800 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

250

Ground

B

LT GRN

11

High Beam Headlamp Feed

C

TAN

12

Low Beam Headlamp Feed

Headlamp, Left High Beam


Object Number: 35447 Size: CH

Connector Part Information
    • 12059183
    • 2 Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

11

High Beam Headlamp Feed

B

BLK

150

Ground

Headlamp Low Beam, LH


Object Number: 35447 Size: CH

Connector Part Information
    • 12059181
    • 2F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

12

Low Beam Headlamp Feed

B

BLK

150

Ground

Headlamp Low Beam, RH


Object Number: 35444 Size: CH

Connector Part Information
    • 12059181
    • 2F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

12

Low Beam Headlamp Feed

B

BLK

250

Ground

Headlamp, Right High Beam


Object Number: 35447 Size: CH

Connector Part Information
    • 12059183
    • 2 Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

11

High Beam Headlamp Feed

B

BLK

250

Ground

Headlamp Control Module C1


Object Number: 62456 Size: CH

Connector Part Information
    • 12064752
    • 6F M/P 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

39

Fuse Output - Ignition I - Type III Fuse

B

--

--

Not Used

C

LT BLU

1134

Park Brake Switch Signal

D

BRN

9

Park Lamp Feed

E

ORN

240

Fuse Output - Battery Type III Fuse

F

BLK

150

Ground

Headlamp Control Module C2


Object Number: 62480 Size: CH

Connector Part Information
    • 12089527
    • 6F M/P 280 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A

YEL

10

Headlamp Switch

B

BLK/WHT

624

Vehicle anti-Theft System Signal - Headlamp Alarm

C

ORN

2040

Fuse Output - Battery - Type III Fuse

D

LT BLU

1346

Headlamp Relay Output - N.O. Contact

E

YEL/BLK

1784

Twilight Sentinel Enable Signal

F

--

--

Not Used

Headlamp Panel Dimmer Switch


Object Number: 68785 Size: CH

Connector Part Information
    • 12146952
    • 12-Way F Metri-Pack 280 Series Flex Lock (BLK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

GRY

157

Interior Lamp Output

C

RED

42

Fuse Output-Battery-Type II Fuse

D

PNK

39

Fuse Output-IGN 1-Type III Fuse

E

DK GRN

44

Instrument Panel Lamps Dimmer Switch Output

F

--

--

Not Used

G

YEL

10

Headlamp Switch Output

H

ORN

240

Fuse Output-Battery-Type III Fuse

J-K

--

--

Not Used

L

PPL

328

Interior Lamp Defeat Switch Output

M

WHT

156

Courtesy Lamp Output

N

PPL/WHT

1382

LED Dimming Signal

P

--

--

Not Used

R

BLK

150

Ground

S

BRN

9

Park Lamp Feed

Instrument Panel (IP) Compartment Lamp


Object Number: 82383 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

ORN

40

Fuse Output - Battery - Type III Fuse

Interior Lamp Control Module


Object Number: 62432 Size: CH

Connector Part Information
    • 12041429
    • 5 Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

39

Fuse Output-IGN 1-Type III Fuse

B

GRY

157

Interior Lamp Output

C

ORN

40

Fuse Output-Battery-Type III Fuse

D

BLK

150

Ground

E

WHT

156

Courtesy Lamp Output

License Lamps LH, RH


Object Number: 287977 Size: CH

Connector Part Information
    • 12020348
    • Lamp Socket Type W-2

Pin

Wire Color

Circuit No.

Function

A

BRN

9

Lamp Feed

B

BLK

150

Ground

Marker Lamp, Left


Object Number: 287977 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

LT BLU

14

Turn Signal Lamp Feed, Left Front

B

BRN

9

Park Lamp Feed

Marker Lamp, Right


Object Number: 287977 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

DK BLU

15

Turn Signal Lamp Feed, Right Front

B

BRN

9

Park Lamp Feed

Park and Turn Signal Lamps, Left Front


Object Number: 306271 Size: CH

Connector Part Information
    • 12089345
    • Lamp Socket C2 Base Right Angle (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

14

Turn Signal Lamp Feed

B

BRN

9

Lamp Feed

G

BLK

150

Ground

Park and Turn Signal Lamps, Right Front


Object Number: 306271 Size: CH

Connector Part Information
    • 12089345
    • Lamp Socket C2 Base Right Angle (NAT)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

15

Turn Signal Lamp Feed

B

BRN

9

Lamp Feed

G

BLK

250

Ground

Roof Marker Lamps


Object Number: 410092 Size: CH

Connector Part Information
    • 06294702
    • 2-Way Base (NAT)

Pin

Wire Color

Circuit No.

Function

A

WHT

9

Park Lamp Feed

B

BLK

150

Ground

Sunshade Mirror Lamp, Left


Object Number: 35441 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

ORN

40

Fuse Output-Battery-Type III Fuse

B

BLK

150

Ground

Stop Lamp/TCC Switch


Object Number: 62424 Size: CH

Connector Part Information
    • 12040551
    • Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

17

Stop Lamp Switch Output

B

ORN

140

Fuse Output-Battery-Type III Fuse

C

PPL

420

Brake Pedal Switch Output-Torque Converter Clutch

D

BRN

441

Fuse Output-Ignition3-Type III Fuse

E

LT GRN

275

Transmission Mounted Neutral Safety Switch Output-Park

F

DK GRN/WHT

1135

Brake Transmission Shift Interlock Solenoid Feed

Sunshade Mirror Lamp, Right


Object Number: 35441 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

ORN

40

Fuse Output-Battery-Type III Fuse

B

BLK

150

Ground

Tail and Stop Lamp, Left


Object Number: 236398 Size: CH

Connector Part Information
    • 12065861
    • 5F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

YEL

18

Stop/Turn Lamp Feed - Left Rear

C

LT GRN

24

Back - Up Lamp Feed

D

--

--

Not Used

E

BRN

9

Park Lamp Feed

Tail and Stop Lamp, Right


Object Number: 236398 Size: CH

Connector Part Information
    • 12065861
    • 5F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

GRN

19

Stop/Turn Lamp Feed - Right Rear

C

LT GRN

24

Back - Up Lamp Feed

D

--

--

Not Used

E

BRN

9

Park Lamp Feed

Underhood Lamp


Object Number: 333041 Size: CH

Connector Part Information
    • 12162000
    • 2 Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

740

Fuse Output - Battery - Type III Fuse

B

--

--

Not Used