GM Service Manual Online
For 1990-2009 cars only
Connector 1: Ambient Air Temperature Sensor
Connector 2: Engine Oil Pressure (EOP) Switch
Connector 3: Fuel Pump and Sender Assembly
Connector 4: Instrument Panel Cluster (IPC)

Ambient Air Temperature Sensor


Object Number: 635009  Size: CH

Connector Part Information

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

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

D-GN/WH

636

Ambient Air Temperature Sensor Signal

B

YE

61

Low Reference

Engine Oil Pressure (EOP) Switch


Object Number: 516595  Size: CH

Connector Part Information

  • OEM: 12065299
  • Service: 12085500
  • Description: 4-Way F Metri-Pack 150 Series Sealed (L-GY)

Terminal Part Information

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

Engine Oil Pressure (EOP) Switch

Pin

Wire Color

Circuit No.

Function

A

TN/BK

231

Oil Pressure Switch Signal

B-D

--

--

Not Available

Fuel Pump and Sender Assembly


Object Number: 684908  Size: CH

Connector Part Information

  • OEM: 15326631
  • Service: 15306360
  • Description: 4-Way F GT 280 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

BK

850

Ground

B

PU

1589

Fuel Level Sensor Signal (- Primary)

C

OG/BK

510

Low Reference

D

GY

120

Fuel Pump Supply Voltage

Instrument Panel Cluster (IPC)


Object Number: 1626681  Size: CH

Connector Part Information

  • OEM: 1326132-9
  • Service: 88988783
  • Description: 18-Way F 0.64 MM Lever Assist (BK)

Terminal Part Information

  • Pins: 6, 13, 14
  • Terminal/Tray: 638551-1/16
  • Core/Insulation Crimp: K/K
  • Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)
  • Pins: 8-11
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Instrument Panel Cluster (IPC)

Pin

Wire Color

Circuit No.

Function

1-5

--

--

Not Used

6

BK/WH

651

Signal Ground

7

--

--

Not Used

8

D-GN

5060

Low Speed GMLAN Serial Data (Early Production)

D-GN/BK

5060

Low Speed GMLAN Serial Data (Late Production)

9

D-GN/WH

1358

Driver Information Center Switch Signal

10

D-GN

264

Security Indicator Supply Voltage

11

BN/WH

419

MIL Control

12

--

--

Not Used

13

PK

339

Ignition 1 Voltage

14

RD/WH

1440

Battery Positive Voltage

15-18

--

--

Not Used