GM Service Manual Online
For 1990-2009 cars only
Table 1: Head Up Display Module (Pontiac)
Table 2: Instrument Cluster Connector - Buick with U23
Table 3: Instrument Panel Gauges Connector - Buick with UB3
Table 4: Remote Indicator Back Connector - Buick with UB3
Table 5: Instrument Cluster C1 (Oldsmobile w/ UH8)
Table 6: Instrument Cluster Connector C2 - Oldsmobile with UH8
Table 7: Instrument Cluster Connector - Pontiac with UB3
Table 8: Instrument Cluster Connector C1 - Pontiac with U50/U2F
Table 9: Instrument Cluster Connector C2 - Pontiac with U50/U2F
Table 10: Transmission Position Decoder Module -- Pontiac
Table 11: Transmission Position Decoder Module -- Oldsmobile
Table 12: Windshield Washer Solvent Level Switch
Table 13: Electronic Compass Module
Table 14: Engine Oil Pressure Switch
Table 15: Head-up Display (HUD) Control
Table 16: Head-up Display (HUD) Adjuster Motor
Table 17: Hood Ajar Switch
Table 18: LH Front Seat Belt Switch

Head Up Display Module (Pontiac)


Object Number: 288390  Size: CH

Connector Part Information

    • 12059197
    • F Micro - Pack 100 Series(LT GRY)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

YEL

32

Fused Output-Instrument Panel Lamp

3

WHT

717

Illuminated Display Signal

4

DK GRN/WHT

1194

Low Fuel Level Signal

5

LT BLU

14

Turn Signal Lamp Feed-Left Front

6

BRN

1675

Check Gages Signal

7

BLK

1450

Ground

8

DK GRN/WHT

817

Vehicle Speed Signal

9

LT GRN

11

High Beam Headlamp Feed

10

DK BLU

15

Turn Signal Lamp Feed-Right Front

11

BRN

1141

Fused Output-IGN

12

BLK/WHT

251

Ground

Instrument Cluster Connector - Buick with U23


Object Number: 295480  Size: CH

Connector Part Information

    • 12065804
    • 22-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

DK BLU

15

Turn Signal Lamp Feed - RH Front

A2

TAN/WHT

33

Brake Warning Indicator Lamp Output

A3

BRN/WHT

419

Check Engine Indicator Lamp Output

A4

DK GRN

264

Security Indicator Lamp Feed

A5

ORN

40

Battery Feed

A6

LT GRN/BLK

875

ABS Indicator Lamp Driver Module Output

A7

WHT

85

Cruise Indicator Lamp Output

A8

TAN

31

Oil Pressure Indicator Lamp Output

A9

BRN

25

Volts Indicator Lamp Output

A10

DK GRN

35

Coolant Temperature (TEMP) Indicator Lamp Output

A11

BRN

358

Air Bag Indicator Lamp Output

B1

PNK

439

Ignition 1

B2

BLK/WHT

451

Ground

B3

PPL/WHT

455

Fuel Level PWM Output Signal From PCM

B4

GRY

8

Instrument Panel Lamp Feed

B5

PNK

439

Ignition 1

B6

BLK

1250

Ground

B7

DK GRN/WHT

817

Vehicle Speed Signal

B8

BLK

1250

Ground

B9

LT BLU

14

Turn Signal Lamp Feed - LH Front

B10

LT GRN/BLK

1360

High-Beam Headlamp Feed

B11

YEL

234

Fasten Seat Belts Indicator Lamp Output

Instrument Panel Gauges Connector - Buick with UB3


Object Number: 295480  Size: CH

Connector Part Information

    • 12065804
    • 22-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

DK BLU

15

Turn Signal Lamp Feed - RH Front

A2

--

--

Not Used

A3

BLK

1250

Ground

A4

BLK

1250

Ground

A5-A6

GRY

8

Instrument Panel Lamp Feed

A7-A8

--

--

Not Used

A9

LT GRN/BLK

1360

High-Beam Headlamp Feed

A10

--

--

Not Used

A11

LT BLU

14

Turn Signal Lamp Feed - LH Front

B1

PNK

439

Ignition 1

B2

PPL/WHT

455

Fuel Level PWM Output Signal From PCM

B3

PNK

439

Ignition 1

B4

WHT

121

Tachometer Signal

B5

--

--

Not Used

B6

BLK/WHT

451

PCM Ground

B7

BLK/WHT

451

PCM Ground

B8

DK GRN/WHT

817

Vehicle Speed Signal - 4000 Pulses Per Mile

B9

PNK

439

Ignition 1

B10

TAN

31

Oil Pressure Indicator Lamp Output

B11

LT GRN

36

Coolant Temperature Signal

Remote Indicator Back Connector - Buick with UB3


Object Number: 356319  Size: CH

Connector Part Information

    • 12191334
    • 22-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

BLK

1250

Ground

4

YEL

234

Fasten Belts Indicator Lamp Output

5-7

--

--

Not Used

8

WHT

85

Cruise Indicator Lamp Output

9

GRY

803

Change Oil Indicator Lamp Output

10

DK BLU

1660

Traction Control Indicator Lamp Driver Module Output

11-12

--

--

Not Used

13

DK GRN

35

Coolant Temperature Indicator Lamp Output

14

ORN

40

Battery Power

15

DK GRN

264

Security Indicator Lamp Feed

16

BRN

25

Volts Indicator Lamp Output

17

PNK

39

Fuse Output - Ignition 1

18

TAN/WHT

33

Brake Warning Indicator Lamp Output

19

BRN/WHT

419

Check Engine Indicator Lamp Output

20

LT GRN/BLK

875

ABS Indicator Lamp Driver Module Output

21

BRN

358

Air Bag Indicator Lamp Output

22

BRN/WHT

1173

Low Oil Level Indicator Lamp Output

Instrument Cluster C1 (Oldsmobile w/ UH8)


Object Number: 288391  Size: CH

Connector Part Information

    • 12045471
    • 32 Way F Micro-Pack 100 Series (GRN)

Pin

Wire Color

Circuit No.

Function

C1

GRN LT

11

High-Beam Headlamp Feed

C2-C4

--

--

Not Used

C5

WHT

776

Transmission Position Switch Signal - Parity Bit

C6

GRY

773

Transmission Position Switch Signal - Bit 3

C7

YEL

772

Transmission Position Switch Signal - Bit 2

C8

BLK/WHT

771

Transmission Position Switch Signal - Bit 1

C9-C12

--

--

Not Used

C13

PPL

209

Brake Fluid Level Indicator Lamp Output

C14

TAN/WHT

33

Brake Warning Indicator Lamp Output

C15

--

--

Not Used

C16

DK BLU

15

Turn Signal Lamp Feed - RH Front

D1-D5

--

--

Not Used

D6

LT GRN/BLK

875

ABS Indicator Lamp Driver Module Output

D7

BRN

358

Air Bag Indicator Lamp Output

D8

--

--

Not Used

D9

PNK

439

Ignition 1

D10

--

--

Not Used

D11

BLK/WHT

99

Windshield Washer Fluid Level Sensor Signal

D12-D13

--

--

Not Used

D14

YEL/BLK

68

Low Coolant Level Indicator Lamp Output

D15

BRN/WHT

1173

Low Oil Level Indicator Lamp Output

D16

LT BLU

14

Turn Signal Lamp Feed - LH Front

Instrument Cluster Connector C2 - Oldsmobile with UH8


Object Number: 73221  Size: CH

Connector Part Information

    • 12052107
    • 32-Way F Micro-Pack 100 Series (ORN)

Pin

Wire Color

Circuit No.

Function

E1

GRY

8

Instrument Panel Lamp Feed

E2

TAN

31

Oil Pressure Indicator Lamp Output

E3

PPL

30

Fuel Gauge Sensor Signal

E4

YEL

32

Fuse Output - Instrument Panel Lamps

E5

TAN

800

Serial Data Signal - UART (8192 Baud)

E6

TAN

800

Serial Data Signal - UART (8192 Baud)

E7

--

--

Not Used

E8

WHT

121

Tachometer Signal

E9

--

--

Not Used

E10

DK GRN/WHT

817

Vehicle Speed Signal - 4000 Pulses Per Mile

E11

BLK

1250

Ground

E12

BLK

1250

Ground

E13

YEL

234

Fasten Belts Indicator Lamp Output

E14-E15

--

--

Not Used

E16

LT GRN

1845

Auxiliary Chime Control Signal

F1

--

--

Not Used

F2

PPL

806

Crank

F3

ORN

40

Battery Feed

F4

LT GRN

147

Ignition 0 (OFF/RUN)

F5

PNK

439

Ignition 1

F6

--

--

Not Used

F7

BLK/WHT

451

PCM Ground

F8

BLK/WHT

451

PCM Ground

F9

BLK

552

Sensor Return

F10-F12

--

--

Not Used

F13

BRN/WHT

419

Check Engine Indicator Lamp Output

F14

GRN DK

264

Security Indicator Lamp Feed

F15

--

--

Not Used

F16

PNK

439

Ignition 1

Instrument Cluster Connector - Pontiac with UB3


Object Number: 62478  Size: CH

Connector Part Information

    • 12162670
    • 34-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

DK GRN

35

Coolant Temperature Indicator Lamp Output

A2

TAN

31

Oil Pressure Indicator Lamp Output

A3

BLK

1250

Ground

A4

GRY

8

Instrument Panel Lamp Feed

A5

TAN/WHT

33

Brake Warning Indicator Lamp Output

A6

PNK

439

Ignition 1

A7

LT GRN

1845

Auxiliary Chime Control Signal

A8

BLK/WHT

451

PCM Ground

A9

LT GRN

36

Coolant Temperature Sensor

A10

DK GRN/WHT

817

Vehicle Speed Signal - 4000 Pulses Per Mile

A11

BLK/WHT

99

Windshield Washer Fluid level Sensor Signal

A12

BRN/WHT

1173

Low Oil Level Indicator Lamp Output

A13

BRN

25

Volts Indicator Lamp Output

A14

PPL/WHT

455

Fuel Level PWM Output Signal From PCM

A15

PNK

439

Ignition 1

A16

DK BLU

15

Turn Signal Feed - RH Front

A17

BLK/WHT

451

PCM Ground

B1

DK GRN/WHT

817

Vehicle Speed Signal - 4000 Pulses Per Minute

B2

PNK

439

Ignition 1

B3

BLK

1250

Ground

B4

PNK

439

Ignition 1

B5

BLK

1250

Ground

B6

GRY

8

Instrument Panel Lamp Feed

B7

LT GRN/BLK

875

ABS Indicator - Lamp Driver Module Output

B8

YEL

234

Fasten Belts Indicator Lamp Output

B9

ORN

40

Battery

B10

DK GRN

264

Security Indicator Lamp Feed

B11

BRN/WHT

419

Check Engine Indicator Lamp Output

B12

BRN

358

Air Bag Indicator Lamp Output

B13

DK BLU

1660

Traction Control Indicator Lamp Driver Module Output (with NW9)

B14

--

--

Not Used

B15

WHT

121

Tachometer Signal

B16

LT GRN

11

High-Beam Headlamp Feed

B17

LT BLU

14

Turn Signal Feed - LH Front

Instrument Cluster Connector C1 - Pontiac with U50/U2F


Object Number: 62478  Size: CH

Connector Part Information

    • 12162670
    • 34-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

ORN

40

Battery

A2

DK GRN

264

Security Indicator Lamp Feed

A3-A4

--

--

Not Used

A5

DK BLU

1660

Traction Control Indicator Lamp Driver Module Output

A6

BRN

358

Air Bag Indicator Lamp Output

A7

PNK

439

Ignition 1

A8-A9

--

--

Not Used

A10

TAN/WHT

33

Brake Warning Indicator Lamp Output

A11

BRN/WHT

419

Check Engine Indicator Lamp Output

A12

YEL

234

Fasten Belts Indicator Lamp Output

A13

DK BLU

15

Turn Signal Feed - RH Front

A14

BLK

1250

Ground

A15

LT GRN/BLK

875

ABS Indicator - Lamp Driver Module Output

A16

BLK/WHT

99

Windshield Washer Fluid Level Sensor Signal

B1

ORN

40

Battery

B2

GRY/BLK

745

Door Ajar Switch Signal - LH Front

B3

RED/BLK

744

Trunk Lid Ajar Switch Signal

B4

PNK/BLK

109

Hood Ajar Switch Signal

B5

YEL/BLK

68

Low Coolant Level Indicator Lamp Output

B6

LT BLU/BLK

747

Door Ajar Switch Signal - LH Rear

B7

GRY

705

Reference Voltage Feed - 5 Volt Reference

B8

BLK/WHT

451

PCM Ground

B9

BLK/WHT

451

PCM Ground

B10

BLK/WHT

746

Door Ajar Switch Signal - RH Front

B11

LT GRN/BLK

748

Door Ajar Switch Signal - RH Rear

B12

YEL

32

Fuse Output - Instrument Panel Lamps

B13

BRN

25

Volts Indicator Lamp Output

B14

LT GRN

11

High-Beam Headlamp Feed

B15

BLK

1250

Ground

B16

GRY

8

Instrument Panel Lamp Feed

B17

LT BLU

14

Turn Signal Feed - LH Front

Instrument Cluster Connector C2 - Pontiac with U50/U2F


Object Number: 295480  Size: CH

Connector Part Information

    • 12065804
    • 22-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

BRN

1141

Ignition 3

A2

PPL/WHT

455

Fuel Level PWM Output Signal From PCM

A3

BRN/WHT

1173

Low Oil Level Indicator Lamp Output

A4-A5

--

--

Not Used

A6

DK GRN/WHT

1194

Low Fuel Level Signal with UV6

A7

BRN

1675

Check Gauges signal with UV6

A8

LT GRN

1845

Chime Control Signal

A9

DK GRN

35

Coolant Temperature Indicator Lamp Output

A10

PNK

439

Ignition 1

A11

DK GRN

135

Coolant Temperature Sensor Signal

B1

TAN

31

Oil Pressure Indicator Lamp Output

B2

BLK

1250

Ground

B3

GRY

8

Instrument Panel Lamp Feed

B4

--

--

Not Used

B5

TAN/WHT

337

Compass Clock Signal

B6

TAN

1278

Lamp Monitor Data Request Signal

B7

PPL/WHT

336

Compass Data Signal

B8

WHT

1279

Lamp Monitor Data Signal

B9

WHT

121

Tachometer Signal

B10

DK GRN/WHT

817

Vehicle Speed Signal - 4000 Pulses Per Mile

B11

BLK

891

Boost Gauge Signal

Transmission Position Decoder Module -- Pontiac


Object Number: 320526  Size: CH

Connector Part Information

    • 12052856
    • 4-Way F Metric Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output - Ignition

B

BLK/ WHT

451

Engine Control Module - Ground

C

TAN

800

Serial Data Signal

D

GRY

8

Instrument Panel Lamp Feed

Transmission Position Decoder Module -- Oldsmobile


Object Number: 280793  Size: CH

Connector Part Information

    • 12052444
    • 8-Way F Micro Pack 100 (BLK)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

TAN

800

Serial Data Signal

3

--

--

Not Used

4

GRY

8

Instrument Panel Lamp Feed

5

--

--

Not Used

6

BLK/ WHT

451

Engine Control Module - Ground

7

--

--

Not Used

8

PNK

439

Fuse Output - Ignition

Windshield Washer Solvent Level Switch


Object Number: 232831  Size: CH

Connector Part Information

    • 12162192
    • 2-Way Metric Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1150

Ground

B

BLK/ WHT

99

Windshield Washer Fluid Level Sensor Signal

Electronic Compass Module


Object Number: 280764  Size: CH

Connector Part Information

    • 12064993
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5

BRN

541

Fuse Output Battery

6

--

--

Not Used

7

PPL/WHT

336

Compass Signal Data

8

TAN/WHT

337

Compass Clock Signal

9

BRN

1141

Fuse output Ignition 3

10

BLK/WHT

251

Ground

Engine Oil Pressure Switch


Object Number: 258230  Size: CH

Connector Part Information

    • 12048076
    • 4-Way F Metri-Pak 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN/BLK

31

Oil Pressure Indicator Lamp Output

B

BLK/WHT

251

Ground

C-D

--

--

Not Used

Head-up Display (HUD) Control


Object Number: 280764  Size: CH

Connector Part Information

    • 12064993
    • 6-Way F Micro-Pak Series 100 (BLK)

Pin

Wire Color

Circuit No.

Function

5

BRN

620

Head-up Display Motor Feed - Down

6

BRN

1141

Fuse Output - Ignition 3

7

WHT

717

Illuminated Display Signal

8

GRY

8

Instrument Panel Lamp Feed

9

YEL

621

Head-up Display Motor Feed - Up

10

BLK/WHT

251

Ground

Head-up Display (HUD) Adjuster Motor


Object Number: 288390  Size: CH

Connector Part Information

    • 12059197
    • 12-Way F Micro-Pak Series 100 (LT GRY)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

YEL

32

Fuse Output - Instrument Panel Lamps

3

WHT

717

Illuninated Display Signal

4

DK GRN

1194

Low Level Signal

5

LT BLU

14

Turn Signal Lamp Feed - Left Front

6

BRN

1675

Check Gauge Signal

7

BLK

1450

Ground

8

DK GRN/WHT

817

Vehicle Speed Signal - 4000 Pulses Per Mile - Secondary

9

LT GRN

11

High Beam Headlamp Switch

10

DK BLU

15

Turn Signal Lamp Feed - Right Front

11

BRN

1141

Fuse Output - Ignition 3

12

BLK/WHT

251

Ground

Hood Ajar Switch


Object Number: 232831  Size: CH

Connector Part Information

    • 12132192
    • 2-Way F Metric-Pak Series 150.2 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/BLK

109

Hood Ajar Switch Signal

B

BLK

1150

Ground

LH Front Seat Belt Switch


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2-Way F Metri-Pak 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

238

Seat Belt Switch Signal

B

BLK

1250

Ground