GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC C-Series Medium Duty Truck B7 🢒 Brakes 🢒 Air Brakes 🢒 Lighting Systems Connector End Views
Table 1: Air Pressure Gauge Lamp
Table 2: Automatic Transmission (AT) Shift Selector Control (Gasoline and GM Diesel)
Table 3: Automatic Transmission (AT) Shift Selector Control (Cat® Diesel)
Table 4: Backup Lamps Switch (Automatic)
Table 5: Backup Lamps Switch (Manual)
Table 6: Daytime Running Lights Module
Table 7: Daytime Running Lights (DRL) Diode Module
Table 8: Headlamps Dimmer Switch
Table 9: Headlamps Switch
Table 10: Headlamp High/Low, Left Side
Table 11: Headlamp High/Low, Right Side
Table 12: Hazard Warning Switch
Table 13: Hazard Warning Name Plate
Table 14: IP Lamps Dimmer Control
Table 15: Park And Turn Signal Lamp, Left Front
Table 16: Park And Turn Signal Lamp, Right Front
Table 17: Park Brake Indicator Switch (ABS-Air)
Table 18: Stoplamps Switch C1
Table 19: Stoplamps Switch C2
Table 20: Turn Signal Switch

Air Pressure Gauge Lamp


Object Number: 309447 Size: CH

Connector Part Information
    • 12004264
    • Bulb Base Type W-2, Axial

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Feed

B

BLK

150

Ground

Automatic Transmission (AT) Shift Selector Control (Gasoline and GM Diesel)


Object Number: 62463 Size: CH

Connector Part Information
    • 12064766
    • 8 Way F Metri-Pack 150 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Feed

B

ORN/BLK

1786

Transmission Park/Neutral Signal

C-E

--

--

Not Used

F

BLK/WHT

451

Engine Control Module Ground

G

--

--

Not Used

H

BLK

250

Ground

Automatic Transmission (AT) Shift Selector Control (Cat® Diesel)


Object Number: 62463 Size: CH

Connector Part Information
    • 12064766
    • 8 Way F Metri-Pack 150 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Feed

B

ORN/BLK

1786

Transmission Park/Neutral Signal

C-E

--

--

Not Used

F

PNK

39

Fuse Output-Ignition

G

--

--

Not Used

H

BLK

250

Ground

Backup Lamps Switch (Automatic)


Object Number: 35437 Size: CH

Connector Part Information
    • 12052641
    • 2 Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

441

Fuse Output Ignition 3 Type III Fuse

B

LT GRN

24

Backup Lamp Feed

Backup Lamps Switch (Manual)


Object Number: 35437 Size: CH

Connector Part Information
    • 12052644
    • 2 Way F Metri-Pack 150 Series, Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

441

Fuse Output Ignition 3 Type III Fuse

B

LT GRN

24

Backup Lamp Feed

Daytime Running Lights Module


Object Number: 222648 Size: CH

Connector Part Information
    • 12191131
    • 8 Way P/C Edgeboard Standard (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1134

Park Brake Switch Signal

B

--

--

Not Used

C

PNK

39

Fuse Output Ignition 1 Type III Fuse

D

YEL

10

Headlamp Switch Output

E-F

--

--

Not Used

G

LT GRN/BLK

592

Daytime Running Lamp Relay Output Coil

H

BLK

250

Ground

Daytime Running Lights (DRL) 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

YEL

634

Daytime Running Lamp Diode Feed

B

WHT

815

Daytime Running Lamp Diode Output

Headlamps Dimmer Switch


Object Number: 332023 Size: CH

Connector Part Information
    • 08917693
    • 4 Way F 56 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

11

High Beam Headlamp Feed

B

--

--

Not Used

C

PPL

544

Daytime Running Lamp Relay Feed N.C. Contact

D

YEL

10

Headlamp Switch Output

Headlamps Switch


Object Number: 39734 Size: CH

Connector Part Information
    • 12034061
    • 6 Way F Metri-Pack 480 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

13

Headlamp Switch Output Park Lamps

B

YEL

634

Daytime Running Lamp Diode Feed

C

RED

1042

Fuse Output Battery Type II Fuse

D

YEL

10

Headlamp Switch Output

E

ORN

1040

Fuse Output Battery Type III Fuse

F

--

--

Not Used

Headlamp High/Low, Left Side


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 High/Low, Right Side


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

Hazard Warning Switch


Object Number: 288397 Size: CH

Connector Part Information
    • 12034482
    • 6 Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

27

Hazard Flasher Output

B

YEL

18

Stop/Turn Lamp Feed Left Rear

C

DK BLU

15

Turn Signal Lamp Feed Right Front

D

DK GRN

19

Stop/Turn Lamp Feed Right Rear

E

LT BLU

14

Turn Signal Lamp Feed Left Front

F

BLK

150

Ground

Hazard Warning Name Plate


Object Number: 35441 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BLK

250

Ground

B

GRY

8

Instrument Panel Lamp Feed

IP Lamps Dimmer Control


Object Number: 38618 Size: CH

Connector Part Information
    • 12034060
    • 4 Way F Metri-Pack 480 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

13

Headlamp Switch Output Park Lamps

B-C

--

--

Not Used

D

GRY

8

Instrument Panel Lamp Feed

Park And Turn Signal Lamp, Left Front


Object Number: 73223 Size: CH

Connector Part Information
    • 12162185
    • 3 Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

14

Turn Signal Lamp Feed Left Front

B

BLK

150

Ground

C

BRN

9

Park Lamp Feed

Park And Turn Signal Lamp, Right Front


Object Number: 73223 Size: CH

Connector Part Information
    • 12162185
    • 3 Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

15

Turn Signal Lamp Feed Right Front

B

BLK

150

Ground

C

BRN

9

Park Lamp Feed

Park Brake Indicator Switch (ABS-Air)


Object Number: 258230 Size: CH

Connector Part Information
    • 12065298
    • 4 Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1134

Park Brake Switch Signal

B

BLK

150

Ground

C-D

--

--

Not Used

Stoplamps Switch C1


Object Number: 130679 Size: CH

Connector Part Information
    • 12033704
    • 4 Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

640

Fuse Output Battery Type III Fuse

B

LT BLU

20

Stop Lamp Feed

C

ORN

540

Fuse Output Battery Type III Fuse

D

GRY

847

Brake Pedal Switch Output Extended Travel

Stoplamps Switch C2


Object Number: 333038 Size: CH

Connector Part Information
    • 12033709
    • 2 Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

451

Engine Control Module Ground

A

BLK

808

Sensor Return (Cat® Diesel)

B

TAN

848

Brake Pedal Switch Signal-ABS

Turn Signal Switch


Object Number: 222621 Size: CH

Connector Part Information
    • 12004147
    • 11 Way F Pack-Con Series 1 (BLK)

Pin

Wire Color

Circuit No.

Function

D-F

--

--

Not Used

G

BLK

28

Horn Relay Output Coil

H

LT BLU

14

Turn Signal Lamp Feed Left Front

J

DK BLU

15

Turn Signal Lamp Feed Right Front

K

--

--

Not Used

L

PPL

16

Turn Signal Flasher Output

M

YEL

18

Stop/Turn Lamp Feed Left Rear

N

DK GRN

19

Stop/Turn Lamp Feed Right Rear

P

--

--

Not Used