GM Service Manual Online
For 1990-2009 cars only
Table 1: Compass Module
Table 2: Driver Information Center (DIC) Switch
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

Compass Module


Object Number: 62467  Size: CH

Connector Part Information

    • 12064980
    • 9 way F Micro - Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

7-8

--

--

Not Used

9

WHT

193

Rear Defogger Input

10

--

--

Not Used

11

PPL/WHT

336

Data Output

12

TAN/WHT

337

Strobe/Clock

13

BRN

41

Ingition Positive Input

14

BLK/WHT

751

Ground

15

--

--

Not Used

Driver Information Center (DIC) Switch


Object Number: 73151  Size: CH

Connector Part Information

    • 12064799
    • 12-Way F Micro - Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

1491

DIM Control

B

LT BLU

811

English/Metric Signal

C

LT GRN

376

Trip Reset Signal

D

PNK

893

Select Signal

E-H

--

--

Not Used

J

PNK/BLK

1379

Reset Signal

K

LT GRN

8050

Tire Inflation Monitor Reset Signal

K

ORN

1816

Mode Signal (W/UB3/U2F)

L

BLK

450

Ground

M

--

--

Not Used

Heads Up Display (HUD) Dimmer Switch


Object Number: 40427  Size: CH

Connector Part Information

    • 12064978
    • 6-Way F Micro - Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

1

PPL/WHT

724

Vacuum Fluorescent Dimming Signal

2

BLK

450

Ground

3

YEL

621

Head Up Display Motor Feed Down

4

BRN

622

Head Up Display Motor Feed Up

5

BRN

41

Fused Output - Ignition 3 Type III Fuse

6

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: 493166  Size: CH

Connector Part Information

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

Pin*

Wire Color

Circuit No.

Function

A1

FW

14

Turn Signal Lamp Feed-Left Front

A2

FW

2192

Traction Switch LED Signal

A3

FW

1537

Antilock Indicator Signal

A4

FW

121

Tachometer Signal

A5

FW

1807

Serial Data Class 2

A6

FW

1807

Serial Data Class 2

B1

FW

419

Service Engine Soon Indicator Signal

B2

FW

337

Compass-Clock Signal

B3

FW

333

Low Brake Fluid Indicator Signal

B4

FW

817

Vehicle Speed Sensor Signal

B5

FW

893

Select Signal

B6

FW

1134

Park Brake Indicator Signal

* A Pins = Top

B Pins = Bottom

Instument Cluster C2


Object Number: 493164  Size: CH

Connector Part Information

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

Pin*

Wire Color

Circuit No.

Function

A1

FW

99

Low Washer Fluid Signal

A2

FW

450

Ground

A3

--

--

Not Used

A4

FW

2259

Theft LED Signal

A5

--

--

Not Used

A6

FW

1039

Fused Output - Ignition 1 Type III Fuse

A7

FW

440

Fused Output - Battery - Type III Fuse

A8

FW

351

Ground

B1

--

--

Not Used

B2

FW

1816

DIC Mode Signal

B3

FW

336

Compass-Data (w/U2F)

B4

FW

1055

Tire Inflation Monitor

B4

FW

1379

DIC Reset Signal (w/U2F)

B5

FW

15

Right Turn Indicator Signal

B6

FW

376

DIC Trip Reset Signal

B7

FW

811

DIC English/Metric Signal

B8

FW

1491

DIM Control

* 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