GM Service Manual Online
For 1990-2009 cars only
Connector 1: Ambient Air Temperature Sensor (ERG/ERH)
Connector 2: Auxiliary Gage (ERG/ERH)
Connector 3: Engine Oil Pressure (EOP) Sensor
Connector 4: Fuel Pump and Sender Assembly
Connector 5: Instrument Panel Cluster (IPC)
Connector 6: Steering Wheel Controls - Left

Ambient Air Temperature Sensor (ERG/ERH)


Object Number: 684793  Size: CH

Connector Part Information

  • OEM: 12052642
  • Service: 1210856
  • Description: 2-Way F Metri-Pack 150 Series Sealed (L-GN)

Ambient Air Temperature Sensor (ERG/ERH)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

735

Ambient Air Temperature Sensor Signal

B

BN

718

Lowt Reference

Auxiliary Gage (ERG/ERH)


Object Number: 73210  Size: CH

Connector Part Information

  • OEM: 12059162
  • Service: 12102635
  • Description: 4-Way F Micro-Pack 100 Series (BU)

Auxiliary Gage (ERG/ERH)

Pin

Wire Color

Circuit No.

Function

1

PK

639

Ignition 1 Voltage

2

BK

1350

Ground

3

GY

2289

Class 2 Serial Data

4

BN/WH

230

Instrument Panel Lamps Dimming Control

Engine Oil Pressure (EOP) Sensor


Object Number: 258299  Size: CH

Connector Part Information

  • OEM: 12110192
  • Service: 88988301
  • Description: 3-Way F Metri-Pack 150 Series (BK)

Engine Oil Pressure (EOP) Sensor

Pin

Wire Color

Circuit No.

Function

A

BK

407

Low Reference

B

GY

705

5-Volt Reference

C

TN/WH

332

Oil Pressure Sensor Signal

Fuel Pump and Sender Assembly


Object Number: 697003  Size: CH

Connector Part Information

  • OEM: 54200476
  • Service: 15306441
  • Description: 4-Way F GT 150 Series Sealed (BK)

Fuel Pump and Sender Assembly

Pin

Wire Color

Circuit No.

Function

1

BK

2450

Ground

2

BK

2759

Low Reference

3

PU

1589

Fuel Level Sensor Signal

4

GY

120

Fuel Pump Supply Voltage

Instrument Panel Cluster (IPC)


Object Number: 73156  Size: CH

Connector Part Information

  • OEM: 12110088
  • Service: See Catalog
  • Description: 24-Way F Micro-Pack 100 Series (L-GY)

Instrument Panel Cluster (IPC)

Pin

Wire Color

Circuit No.

Function

A1

L-BU

2114

Left Turn Signal Lamps Supply Voltage

A2

OG

2340

Battery Positive Voltage

A3

--

--

Not Used

A4

BK/WH

751

Ground

A5

BK

2250

Ground

A6

--

--

Not Used

A7

BN/WH

230

Instrument Panel Lamps Dimming Control

A8

YE

1327

DIC Fuel Signal

A9

D-GN/WH

1358

DIC Switch Signal

A10

D-BU

894

DIC Toggle Switch Signal

A11

OG

1816

DIC Set/Reset Switch Signal

A12

WH

121

Engine Speed Signal

B1

GY

1036

IPC Class 2 Serial Data

B2-B3

--

--

Not Used

B4

BN/WH

419

MIL Control

B5-B6

--

--

Not Used

B7

PK

639

Ignition 1 Voltage

B8

--

--

Not Used

B9

WH

817

Vehicle Speed Signal

B10

D-BU

2115

Right Turn Signal Lamps Supply Voltage

B11-B12

--

--

Not Used

Steering Wheel Controls - Left


Object Number: 1333392  Size: CH

Connector Part Information

  • OEM: 50-57-9407
  • Service: Not Serviced
  • Description: 7-Way F (BK)

Steering Wheel Controls - Left

Pin

Wire Color

Circuit No.

Function

1

YE

1327

DIC Fuel Signal

2

OG

1816

DIC Set/Reset Switch Signal

3

BK

230

Instrument Panel Lamps Dimming Control

4

BK

2250

Ground

5

D-GN/WH

1358

DIC Switch Signal

6

D-BU

894

DIC Toggle Switch Signal

7

--

--

Not Used