GM Service Manual Online
For 1990-2009 cars only
Table 1: Backup Lamp Switch (MF1)
Table 2: Backup Lamp Switch (LG4/MT)
Table 3: Cigar Lighter Lamp
Table 4: Clearance Lamp
Table 5: Marker Lamp Switch
Table 6: Dome Lamp
Table 7: DRL Resistor
Table 8: Headlamp, High Beam Left
Table 9: Headlamp, Low Beam Left
Table 10: Headlamp, High Beam Right
Table 11: Headlamp, Low Beam Right
Table 12: Stop Lamps Interface Module
Table 13: Lighted Mirror Jumper (C216)
Table 14: Park Brake Switch (JE3)
Table 15: Park Brake Switch (JE5)
Table 16: Park and Turn Signal Lamp, Left
Table 17: Park and Turn Signal Lamp, Right
Table 18: Shift Select Lever (MF1)
Table 19: Side Marker Lamp, Typical
Table 20: Stop Lamp Switch (JE3)
Table 21: Stop Lamp Switch (JE5)
Table 22: Stop, Turn and Tail Lamp, Left
Table 23: Stop, Turn and Tail Lamp, Right
Table 24: Turn Signal Switch C1
Table 25: Trailer Stop Lamps Switch
Table 26: Trailer Stop Relay
Table 27: Turn/Hazard Flasher Module

Backup Lamp Switch (MF1)


Object Number: 236598  Size: CH

Connector Part Information

    • 12052641
    • 2 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

441

Ignition 1 Voltage

B

LT GRN

24

Backup Lamp Control

Backup Lamp Switch (LG4/MT)


Object Number: 236598  Size: CH

Connector Part Information

    • 12052641
    • 2 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

8

Ignition 1 Voltage

B

LT GRN

7

Backup Lamp Control

Cigar Lighter Lamp


Object Number: 236009  Size: CH

Connector Part Information

    • 2 Way
    • Male Connector

Pin

Wire Color

Circuit No.

Function

A

BLK/RED

165

Interior Lamp Dimming Buss

B

BRN

163

Illumination

Clearance Lamp


Object Number: 237091  Size: CH

Connector Part Information

2 Way Male Connector (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

8

Ground

B

BRN

9

Lamp Voltage

Marker Lamp Switch


Object Number: 237083  Size: CH

Connector Part Information

6 Way Female Connector

Pin

Wire Color

Circuit No.

Function

1

GRN

111

Battery Positive Voltage

2

ORN

112

Switch Signal

3

ORN

113

Switch Telltale Voltage

4

BLK

114

Ground

5

BRN

115

Illumination

6

BLK/RED

116

Interior Lamps Dimming Buss

Dome Lamp


Object Number: 240168  Size: CH

Connector Part Information

3 Way Female Connector

Pin

Wire Color

Circuit No.

Function

A

RED

3

Dome Lamp

B

RED/YEL

2

Dome Lamp

C

ORN

1

Dome Lamp

DRL Resistor


Object Number: 237053  Size: CH

Connector Part Information

2 Way Female Connector

Pin

Wire Color

Circuit No.

Function

A

RED/YEL

715

Lighting Relay

B

RED/BLK

729

Daytime Running Lamp ON Relay

Headlamp, High Beam Left


Object Number: 236963  Size: CH

Connector Part Information

3 Way Female Connector (BLK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

RED/YEL

688

Headlamp

C

BLK/WHT

692

Headlamp High Beam

Headlamp, Low Beam Left


Object Number: 236963  Size: CH

Connector Part Information

3 Way Female Connector (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

690

High Beam

B

RED/BLK

691

Lighting Relay Output, Low

C

RED/YEL

689

Headlamp

Headlamp, High Beam Right


Object Number: 236963  Size: CH

Connector Part Information

3 Way Female Connector (BLK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

BLK/WHT

698

High Beam

C

RED/WHT

694

Headlamp

Headlamp, Low Beam Right


Object Number: 236963  Size: CH

Connector Part Information

3 Way Female Connector (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

696

Lighting High/Low

B

RED/BLK

697

Low Beam

C

RED/WHT

695

Headlamp

Stop Lamps Interface Module


Object Number: 237093  Size: CH

Connector Part Information

    • 12010488
    • 6 Way Connector (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

651

Brake Switch Signal

B

PNK

654

Battery Positive Voltage

C

WHT

653

Brake Switch Signal

D

BLK

652

Ground

E-F

--

--

Not Used

Lighted Mirror Jumper (C216)


Object Number: 236079  Size: CH

Connector Part Information

6 Way Female Connector

Pin

Wire Color

Circuit No.

Function

1

BRN

147

Illumination

2-4

--

--

Not Used

5

BRN

147

Illumination

6

--

--

Not Used

Park Brake Switch (JE3)


Object Number: 246698  Size: CH

Connector Part Information

2 Way Male Connector (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

5

DRL Off 2 Relay Control

B

BLK

6

Ground

Park Brake Switch (JE5)


Object Number: 246698  Size: CH

Connector Part Information

2 Way Male Connector (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

744

DRL Off Relay Control

B

BLK

746

Ground

Park and Turn Signal Lamp, Left


Object Number: 73223  Size: CH

Connector Part Information

    • 12162182
    • 3 Way F Metri-Pack 150.2 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

14

Left Front Turn Signal Lamp Signal

B

BLK

150

Ground

C

BRN

9

Park Lamp Signal

Park and Turn Signal Lamp, Right


Object Number: 73223  Size: CH

Connector Part Information

    • 12162182
    • 3 Way F Metri-Pack 150.2 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

15

Right Front Turn Signal Lamp Signal

B

BLK

150

Ground

C

BRN

9

Park Lamp Signal

Shift Select Lever (MF1)


Object Number: 237082  Size: CH

Connector Part Information

6 Way Female Connector (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED/GRN

41

Illumination

B

RED

37

Ignition 1 Voltage

C

BLK/WHT

40

Transmission Park/Neutral Signal

D

BLK/RED

46

Interior Lamp Dimming Buss

E

RED/BLU

38

Select Lever Back Lamp

F

BLK/RED

39

Neutral Signal

Side Marker Lamp, Typical


Object Number: 237053  Size: CH

Connector Part Information

2 Way Female Connector (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

20

Park Lamp Feed

B

BLK

21

Ground

Stop Lamp Switch (JE3)


Object Number: 236009  Size: CH

Connector Part Information

2 Way Female Connector

Pin

Wire Color

Circuit No.

Function

A

WHT

471

Stop Lamp Switch

B

GRN/WHT

470

Stop Lamp Switch

Stop Lamp Switch (JE5)


Object Number: 237053  Size: CH

Connector Part Information

    • 12065402
    • 2 Way F Metri-Pack 150 Series, Sealed (BRN)

Pin

Wire Color

Circuit No.

Function

A

ORN

103

Stop Lamp Switch

B

WHT

104

Stop Lamp Switch

Stop, Turn and Tail Lamp, Left


Object Number: 222697  Size: CH

Connector Part Information

    • 12065862
    • 4 Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Backup Lamp Signal

B

BRN

9

Tail Lamp Signal

C

YEL

19

Stop/Turn Lamp Signal

D

--

--

Not Used-Sealed

E

BLK

150

Ground

Stop, Turn and Tail Lamp, Right


Object Number: 222697  Size: CH

Connector Part Information

    • 12065862
    • 4 Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Backup Lamp Signal

B

BRN

9

Tail Lamp Signal

C

DK GRN

18

Stop/Turn Lamp Signal

D

--

--

Not Used-Sealed

E

BLK

150

Ground

Turn Signal Switch C1


Object Number: 339165  Size: CH

Connector Part Information

22 Way Female Connector

Pin

Wire Color

Circuit No.

Function

1

BLK

87

Ground

2

GRN/WHT

85

Tail Lamp Relay Control

3

RED/YEL

721

Lighting HI, Low Relay Control

4

RED/BLK

717

Lighting Relay Control

5

BLK

86

Ground

6

BLU/BLK

132

Left Turn/Hazard Signal

7

BLU/ORN

133

Right Turn/Hazard Signal

8-9

--

--

Not Used

10

GRN/RED

170

Horn Relay Control

11

BRN

83

Ignition 1 Voltage

12

BLU/ORN

453

Washer Pump

13

ORN

84

Battery Positive Voltage

14

RED/BLK

152

Dome Lamp Control

15-22

--

--

Not Used

Trailer Stop Lamps Switch


Object Number: 237053  Size: CH

Connector Part Information

2 Way Male Connector

Pin

Wire Color

Circuit No.

Function

A

WHT

9

Trailer Stop Lamps Signal

B

ORN

8

Trailer Stop Lamps Supply

Trailer Stop Relay


Object Number: 39670  Size: CH

Connector Part Information

    • 12129716
    • 4 Way F Metri-Pack 280 Series Flex Lock Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

30

RED

142

Battery Positive Voltage

85

GRY

847

Stop Lamps Switch Signal (JE3)

85

WHT

17

Stop Lamp Switch Signal (JE5)

86

BLK

150

Ground

87

RED

950

Trailer Stop Relay Signal (LG4)

87

LT BLU

20

Trailer Stop Relay Signal (LG5 / JE3)

87

LT BLU

1411

Trailer Stop Relay Signal (LG5 / JE5)

Turn/Hazard Flasher Module


Object Number: 236961  Size: CH

Connector Part Information

10 Way Female Connector

Pin

Wire Color

Circuit No.

Function

1

LT BLU

136

Left Front Combination Lamp Signal

2

WHT

105

Stop Lamp Switch Signal (JE5)

2

WHT

471

Stop Lamp Switch Signal (JE3)

3

BLU

139

Right Front Combination Lamp Signal

4

GRN

135

Right Rear Stop and Turn Signal

5

YEL

134

Left Rear Stop and Turn Signal

6

--

--

Not Used

7

BLU/BLK

132

Left Turn Signal Input

8

BLU/ORN

133

Right Turn Signal Input

9

ORN

131

Battery Positive Voltage

10

ORN

137

Battery Positive Voltage