GM Service Manual Online
For 1990-2009 cars only
Table 1: Driver Information Center (DIC) Switch -- Left
Table 2: Driver Information Center (DIC) Switch -- Right
Table 3: Engine Oil Level Switch
Table 4: Engine Oil Pressure (EOP) Switch
Table 5: Instrument Panel Cluster (IPC) C1
Table 6: Instrument Panel Cluster (IPC) C2
Table 7: Overhead Console

Driver Information Center (DIC) Switch -- Left


Object Number: 258171  Size: CH

Connector Part Information

    • 12065873
    • 7 Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK

450

Ground

2

YEL/BLK

1491

Backlight Lamps Control

3

LT GRN

376

Trip Odometer Reset Switch Signal

4

LT BLU

811

Metric Conversion Switch Signal

5

DK BLU

894

DIC Toggle Switch Signal

6

PNK

893

DIC Select Menu Switch Signal

7

BLK/WHT

351

Ground

Driver Information Center (DIC) Switch -- Right


Object Number: 258245  Size: CH

Connector Part Information

    • 12065872
    • 7 Way F Metri-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

1

BLK

450

Ground

2

YEL/BLK

1491

Backlight Lamps Control

3

ORN

1816

DIC Set/Reset Switch Signal

4

DK GRN/

WHT

1358

DIC Switch Signal

5

ORN

1544

Information Up Switch Signal

6

PNK

1545

Information Down Switch Signal

7

BLK/WHT

451

Ground

Engine Oil Level Switch


Object Number: 232831  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BRN

1174

Oil Level Switch Signal

B

BLK/WHT

451

Ground

Engine Oil Pressure (EOP) Switch


Object Number: 258230  Size: CH

Connector Part Information

    • 12065298
    • 4 Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN/BLK

231

Oil Pressure Switch Signal

B

BLK/WHT

451

Ground

C - D

--

--

Not Used

Instrument Panel Cluster (IPC) C1


Object Number: 73156  Size: CH

Connector Part Information

    • 12110088
    • 24 Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

PNK

893

DIC Select Menu Switch Signal

A3

LT BLU

811

Metric Conversion Switch Signal

A4

LT GRN

376

Trip Odometer Reset Switch Signal

A5

DK BLU

894

DIC Toggle Switch Signal

A6

DK GRN/

WHT

1358

DIC Switch Signal

A7

ORN

1816

DIC Set/Reset Switch Signal

A8

PNK/BLK

1545

Information Down Switch Signal

A9

ORN/BLK

1544

Information Up Switch Signal

A10-A11

--

--

Not Used

A12

YEL

1369

54 Volt VF Display Supply

B1-B7

--

--

Not Used

B8

PPL

1807

Class 2 Serial Data

B9-B10

--

--

Not Used

B11

DK BLU

15

Right Turn Signal Lamps Supply Voltage

B12

LT BLU

14

Left Turn Signal Lamps Supply Voltage

Instrument Panel Cluster (IPC) C2


Object Number: 73152  Size: CH

Connector Part Information

    • 12110259
    • 16 Way F Micro-Pack 100 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A1

ORN

440

Battery Positive Voltage

A2

--

--

Not Used

A3

PNK

1039

Ignition 1 Voltage

A4

WHT

121

Engine Speed Signal

A5

DK BLU

1537

ABS Indicator Signal

A6

DK GRN/

WHT

817

Vehicle Speed Signal

A7

--

--

Not Used

A8

BRN/WHT

419

MIL Control

B1

LT BLU

1134

Park Brake Switch Signal

B2

--

--

Not Used

B3

LT GRN

1478

Coolant Level Switch Signal

B4

PPL

333

Brake Fluid Level Sensor Signal

B5

BLK/WHT

99

Windshield Washer Fluid Level Signal

B6

BLK/WHT

351

Ground

B7

BLK

450

Ground

B8

PPL

1807

Class 2 Serial Data

Overhead Console


Object Number: 289392  Size: CH

Connector Part Information

    • 12186451
    • 18 Way F (NAT)

Pin

Wire Color

Circuit No.

Function

1

ORN/BLK

144

Sunroof Switch Open Vent Signal (w/CF5)

2

DK BLU

128

Sunroof Switch Low Reference (w/CF5)

3

PNK

2075

Sunroof Switch Close Vent Signal (w/CF5)

4

--

--

Not Used

5

BRN

100

Sunroof Switch Open Signal (w/CF5)

6

--

--

Not Used

7

GRY/BLK

1598

Interior Lamp Switch Off Signal

8

PNK/BLK

1597

Interior Lamp Switch On Signal

9

--

--

Not Used

10

DK BLU/

WHT

149

Courtesy Lamp Supply Voltage

11

--

--

Not Used

12

BLK/WHT

851

Ground

13

BRN/WHT

253

Trunk Release Relay Control

14

DK GRN

2074

Sunroof Switch Express Signal (w/CF5)

15

ORN

110

Sunroof Switch Close Signal (w/CF5)

16

BLK/WHT

851

Ground

17

BLK

850

Ground

18

GRY

157

Interior Lamp Control