GM Service Manual Online
For 1990-2009 cars only
Connector 1: Ambient Air Temperature Sensor
Connector 2: Clock
Connector 3: Driver Information Center (DIC) Switch
Connector 4: Engine Oil Pressure (EOP) Sensor (LH2)
Connector 5: Engine Oil Pressure (EOP) Sensor (LY7)
Connector 6: Fuel Level Sensor - Left
Connector 7: Fuel Pump and Sender Assembly
Connector 8: Instrument Panel Cluster (IPC)

Ambient Air Temperature Sensor


Object Number: 684793  Size: CH

Connector Part Information

  • OEM: 12052642
  • Service: 12101856
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (L-GN)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Ambient Air Temperature Sensor

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

735

Ambient Air Temperature Sensor Signal

B

YE

61

Low Reference

Clock


Object Number: 1664516  Size: CH

Connector Part Information

  • OEM: 174921-1
  • Service: 15368694
  • Description: 3-Way F Multilock 070 Series (WH)

Terminal Part Information

  • Terminal/Tray: 173630-7/7
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-33 (YE)

Clock

Pin

Wire Color

Circuit No.

Function

1

YE

6817

LED Backlight Dimming Control

2

BK

350

Ground

3

RD/WH

5340

Battery Positive Voltage

Driver Information Center (DIC) Switch


Object Number: 1664548  Size: CH

Connector Part Information

  • OEM: HCMPB-06-K
  • Service: 19115655
  • Description: 6-Way F HCM Series (BK)

Terminal Part Information

  • Terminal/Tray: SHCM-A03T-P025/20
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Driver Information Center (DIC) Switch

Pin

Wire Color

Circuit No.

Function

1

D-GN/WH

1358

DIC Switch Signal

2

BN

897

DIC Switch Low Reference

3

PK

893

DIC Select Menu Switch Signal

4

--

--

Not Used

5

YE

6817

LED Backlight Dimming Control

6

BK

350

Ground

Engine Oil Pressure (EOP) Sensor (LH2)


Object Number: 646409  Size: CH

Connector Part Information

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

Terminal Part Information

  • Terminal/Tray: 15326267/19
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Engine Oil Pressure (EOP) Sensor (LH2)

Pin

Wire Color

Circuit No.

Function

A

BK

2755

Low Reference

B

TN/WH

331

Oil Pressure Sensor Signal

C

GY

2705

5V

Engine Oil Pressure (EOP) Sensor (LY7)


Object Number: 258299  Size: CH

Connector Part Information

  • OEM: 12065287
  • Service: 88988301
  • Description: 3-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12103881/2
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

Engine Oil Pressure (EOP) Sensor (LY7)

Pin

Wire Color

Circuit No.

Function

A

TN

470

Low Reference

B

GY

596

5V

C

TN/WH

331

Oil Pressure Sensor Signal

Fuel Level Sensor - Left


Object Number: 684847  Size: CH

Connector Part Information

  • OEM: 12160563
  • Service: 12160563
  • Description: 4-Way F Metri-Pack 150 Series, Sealed (WH)

Terminal Part Information

  • Pins: A, D
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Fuel Level Sensor - Left

Pin

Wire Color

Circuit No.

Function

A

D-BU

1936

Fuel Level Sensor Signal - Secondary

B-C

--

--

Not Used

D

TN

2759

Low Reference

Fuel Pump and Sender Assembly


Object Number: 456551  Size: CH

Connector Part Information

  • OEM: 12160482
  • Service: 88988598
  • Description: 4-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Fuel Pump and Sender Assembly

Pin

Wire Color

Circuit No.

Function

A

L-BU

1937

Fuel Level Sensor Signal - Primary

B

GY

120

Fuel Pump Supply Voltage

C

BK

1050

Ground

D

TN

2759

Low Reference

Instrument Panel Cluster (IPC)


Object Number: 1468761  Size: CH

Connector Part Information

  • OEM: 1326042-1
  • Service: 88987996
  • Description: 26-Way M USCAR 2 Class II (BK)

Terminal Part Information

  • Pins: 1-5, 8-9, 12-13, 17, 20-23
  • Terminal/Tray: 638551-1/16
  • Core/Insulation Crimp: Pins 1, 5 - K/K
  • Core/Insulation Crimp: Pins 2-4, 8-9, 12-13, 17, 20-23 - J/J
  • Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)

Instrument Panel Cluster (IPC)

Pin

Wire Color

Circuit No.

Function

1

RD/WH

2440

Battery Positive Voltage

2

PK

1739

Ignition 1 Voltage

3

D-GN

5060

Low Speed GMLAN Serial Data

4

D-GN

5060

Low Speed GMLAN Serial Data

5

BK/WH

351

Ground

6-7

--

--

Not Used

8

TN/WH

33

Brake Warning Indicator Control

9

BN/WH

419

MIL Control

10-11

--

--

Not Used

12

D-GN/WH

1358

DIC Switch Signal

13

BN

897

DIC Switch Low Reference

14-16

--

--

Not Used

17

TN

185

Low Washer Fluid Indicator Control

18-19

--

--

Not Used

20

PK

893

DIC Select Menu Switch Signal

21

PU

5234

Passenger Seat Belt Indicator Control

22

D-BU

2307

Passenger Air Bag On Indicator Control

23

D-GN

2308

Passenger Air Bag Off Indicator Control

24-26

--

--

Not Used