GM Service Manual Online
For 1990-2009 cars only
Table 1: Driver Information Center (DIC) Switch
Table 2: Engine Coolant Level Sensor
Table 3: Heads Up Display (HUD) Dimmer Switch
Table 4: Heads Up Display (HUD) Module
Table 5: Instument Cluster C1
Table 6: Instument Cluster C2
Table 7: Seat Belt Switch
Table 8: Windshield Washer Solvent Level Sensor

Driver Information Center (DIC) Switch


Object Number: 280793  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PNK/BLK

1379

Reset Switch Signal (w/UB7)

3

PPL

1328

Drivers Information Center Signal - Gage (w/UB7)

4

YEL

1327

Drivers Information Center Signal -Fuel (w/UB7)

5

LT GRN

376

Digital Trip Odometer Reset Switch Signal (w/U2E)

5

TAN

1326

Drivers Information Center Signal - Odometer (w/UB7)

6

YEL

1491

Dash Integration Module Output - Backlighting Lamps

7

BLK

450

Ground

8

LT BLU

811

Metric Conversion Switch Signal

Engine Coolant Level Sensor


Object Number: 491634  Size: CH

Connector Part Information

    • 12110293
    • 3 way F Metri - Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

251

Ground

B

BRN

41

Fuse Output - Ignition 3 - Type III Fuse

C

LT GRN

147

Fuse Output - Off/Run - Type III Fuse

Heads Up Display (HUD) Dimmer Switch


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

622

Head Up Display Motor Feed Up

6

BLK

450

Ground

7

BRN

41

Fused Output - Ignition 3 Type III Fuse

8

PPL/WHT

724

Vacuum Fluorescent Dimming Signal

9

YEL

621

Head Up Display Motor Feed Down

10

YEL

1491

Dash Integration Module Output - Backlighting Lamps

Heads Up Display (HUD) Module


Object Number: 73152  Size: CH

Connector Part Information

    • 12084944
    • 16-Way F Micro - Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

BRN

41

Fused Output - Ignition 3 Type III Fuse

A2

ORN

440

Fused Output - Battery - Type III Fuse

A3

--

--

Not Used

A4

BLK/WHT

451

Ground

A5

--

--

Not Used

A6

PPL

1807

Serial Data Class 2

A7

--

--

Not Used

A8

DK GRN

817

Vehicle Speed Signal

B1

BRN

622

Head Up Display Motor Feed Up

B2

--

--

Not Used

B3

YEL

621

Head Up Display Motor Feed Down

B4

--

--

Not Used

B5

PPL/WHT

724

Vacuum Fluorescent Dimming Feed

B6

--

--

Not Used

B7

LT BLU

14

Turn Signal Lamp Feed Left Front

B8

DK BLU

15

Turn Signal Lamp Feed Right Front

Instument Cluster C1


Object Number: 493164  Size: CH

Connector Part Information

    • 15317983
    • 16 Way M (BLK)
    • Flat Wire Connector

Pin*

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

FW

14

Turn Signal Lamp Feed-Left Front

A4

FW

1134

Park Brake Switch Signal

A5

FW

817

Vehicle Speed Signal-4000 Pulses Per Mile

A6

FW

333

Brake Fluid Level Switch Output-Brake Warning Indicator Lamp

A7

FW

15

Turn Signal Lamp Feed-Right Front

A8

--

--

Not Used

B1-B3

--

--

Not Used

B4

FW

350

Ground

B5

FW

1039

Fuse Output-Ignition

B6

FW

440

Fuse Output-Battery

B7

FW

351

Ground-Clean

B8

FW

1491

Dash Integration Module Output-Backlighting Lamps

* A Pins = Top

B Pins = Bottom

Instument Cluster C2


Object Number: 493166  Size: CH

Connector Part Information

    • 15317982
    • 12 Way M (NAT)
    • Flat Wire Connector

Pin*

Wire Color

Circuit No.

Function

A1

FW

811

Metric Conversion Switch Signal (w/U23)

A1

FW

1326

Driver Information Center Signal Odometer (w/UB7)

A2

FW

376

Digital Odometer Reset Switch Signal (w/U23)

A2

FW

1379

Reset Switch Signal (w/UB7)

A3

FW

419

Check Engine Indicator Lamp Output

A4

FW

1327

Driver Information Center Signal-Fuel (w/UB7)

A5

FW

811

Metric Conversion Switch Signal (w/UB7)

A6

FW

1328

Driver Information Center Signal-Gauge (w/UB7)

B1

FW

1807

Serial Data Class 2

B2

FW

1807

Serial Data Class 2

B3

FW

121

Tachometer Signal (w/UB7)

B4

FW

1537

ABS Indicator Lamp Output

B5

FW

1478

Low Coolant Sensor Signal (w/UB7)

B6

FW

99

Windshield Wsher Fluid Level Sensor Signal (w/UB7)

* A Pins = Top

B Pins = Bottom

Seat Belt Switch


Object Number: 35441  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

DK BLU

1363

Driver Seat Belt Switch Return

B

BLK/WHT

238

Seat Belt Switch Signal

Windshield Washer Solvent Level Sensor


Object Number: 280762  Size: CH

Connector Part Information

    • 12162195
    • 2 Way F Metri-Pack 150.2 Series Sealed, P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

250

Ground

B

BLK/WHT

99

Windshield Washer Fluid Level Sensor Signal