GM Service Manual Online
For 1990-2009 cars only
Table 1: Dimmer/Head Up Display (HUD) Switch
Table 2: Driver Information Center (DIC) Switch
Table 3: Engine Oil Level Switch
Table 4: Engine Oil Pressure (EOP) Sensor
Table 5: Fuel Level Sensor - Right
Table 6: Fuel Pump and Sender Assembly
Table 7: Head Up Display
Table 8: Instrument Panel Cluster (IPC)

Dimmer/Head Up Display (HUD) Switch


Object Number: 258245  Size: CH

Connector Part Information

    • OEM: 12065872
    • Service: 12101845
    • 7-Way F Micro-Pack 100 Series (GY)

Pin

Wire Color

Circuit No.

Function

1

BU

--

Ground

2

OG

--

Instrument Panel Lamps Dimmer Switch Up Signal

3

GN

--

Instrument Panel Lamps Dimmer Switch Down Signal

4

WH

--

Instrument Panel Lamps Dimmer Switch Select Signal

5

BN

--

HUD Image Down Signal

6

GY

--

Instrument Panel Lamps Supply Voltage

7

YE

--

HUD Image Up Signal

Driver Information Center (DIC) Switch


Object Number: 258245  Size: CH

Connector Part Information

    • OEM: 12065872
    • Service: 12101845
    • 7-Way F Micro-Pack 100 Series (GY)

Pin

Wire Color

Circuit No.

Function

1

GY

--

DIC Information Down Switch Signal

2

BN

--

Instrument Panel Lamps Supply Voltage

3

OG

--

DIC Information Up Switch Signal

4

WH

--

Dome Lamp Switch Signal

5

GN

--

DIC Reset Switch Signal

6

BU

--

DIC Options Switch Signal

7

YE

--

Ground

Engine Oil Level Switch


Object Number: 635009  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: 12102747
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BN

1174

Oil Level Switch Signal

B

BK

1250

Ground

Engine Oil Pressure (EOP) Sensor


Object Number: 646409  Size: CH

Connector Part Information

    • OEM: 15336121
    • Service: 88953362
    • 3-Way F GT 150 Series Sealed 3.2 X 4.0 (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

2755

Oil Pressure Sensor Low Reference

B

TN/WH

331

Oil Pressure Sensor Signal

C

GY

2705

Oil Pressure Sensor 5-Volt Reference

Fuel Level Sensor - Right


Object Number: 697003  Size: CH

Connector Part Information

    • OEM: 15324862
    • Service: 15306441
    • 4-Way F Metri-Pack 150.2 Series (BK)

Pin

Wire Color

Circuit No.

Function

1

L-BU

1937

Fuel Level Sensor Signal

2

--

--

Not Used

3

BK/WH

850

Ground

4

BK

808

Low Reference

Fuel Pump and Sender Assembly


Object Number: 697003  Size: CH

Connector Part Information

    • OEM: 15324862
    • Service: 15306441
    • 4-Way F Metri-Pack 150.2 Series (BK)

Pin

Wire Color

Circuit No.

Function

1

D-BU

1936

Fuel Level Sensor Signal - Secondary

2

GY

120

Fuel Pump Speed Output Circuit

3

BK

9531

Fuel Pump Motor Low Reference

4

BK

808

Low Reference

Head Up Display


Object Number: 850857  Size: CH

Connector Part Information

    • OEM: 15341086
    • Service: 12101845
    • 12-Way F Multi Lock (BK)

Pin

Wire Color

Circuit No.

Function

1

YE

1127

HUD Class 2 Serial Data

2

--

--

Not Used

3

PK

2384

HUD Image Up Signal

4

BN

2383

HUD Image Down Signal

5

--

--

Not Used

6

RD/WH

1140

Battery Positive Voltage

7

--

--

Not Used

8

GN/WH

817

Vehicle Speed Signal

9

BK

1450--

Ground

10 - 12

--

--

Not Used

Instrument Panel Cluster (IPC)


Object Number: 62478  Size: CH

Connector Part Information

    • OEM: 12065803
    • Service: 12065803
    • 34-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

A1

BN/WH

230

Instrument Panel Lamp Dimming Control

A2

YE

390

Instrument Panel Lamp Supply Voltage (3)

A3-A4

--

--

Not Used

A5

GY

1036

IPC Class 2 Serial Data

A6-A9

--

--

Not Used

A10

BK

1450

Ground

A11

--

--

Not Used

A12

RD/WH

1140

Battery Positive Voltage

A13

--

--

Not Used

A14

WH

121

Engine Speed Signal

A15

D-GN/WH

817

Vehicle Speed Signal

A16

BN

9

Park Lamp Supply Voltage

A17

TN/WH

99

Windshield Washer Fluid Level Sensor Signal

B1

BN

27

Hazard Flasher Signal

B2-B3

--

--

Not Used

B4

PK

2384

Night Vision Image Up Signal

B5

BN

2383

Night Vision Image Down Signal

B6-B13

--

--

Not Used

B14

BN/WH

419

Check Engine Indicator Control

B15

L-BU

1134

Park Brake Switch Signal

B16

PU

333

Brake Fluid Level Sensor Signal