GM Service Manual Online
For 1990-2009 cars only
Connector 1: Accelerator Pedal Position Sensor
Connector 2: Boost Pressure Sensor
Connector 3: Camshaft Position (CMP) Sensor
Connector 4: Crankshaft Position (CKP) Sensor
Connector 5: Diesel Particulate Filter Pressure Sensor
Connector 6: Engine Coolant Temperature (ECT) Sensor
Connector 7: Exhust Gas Recirculation (EGR) Valve
Connector 8: Exhust Gas Temperature Sensor 1
Connector 9: Exhust Gas Temperature Sensor 2
Connector 10: Fuel Filter Heater/Temperature Sensor
Connector 11: Glow Plug Control Unit
Connector 12: Fuel Injector 1
Connector 13: Fuel Injector 2
Connector 14: Fuel Injector 3
Connector 15: Fuel Injector 4
Connector 16: Fuel Pump Module
Connector 17: Fuel Rail Pressure Control Valve
Connector 18: Fuel Rail Pressure Sensor
Connector 19: High Pressure Pump
Connector 20: Mass Air Flow (MAF) Sensor
Connector 21: Oil Level Switch
Connector 22: Oil Pressure Switch
Connector 23: PTC Heater
Connector 24: Throttle Plate Actuator
Connector 25: Water In Fuel Sensor

Accelerator Pedal Position Sensor


Object Number: 886053  Size: CH

Connector Part Information

  • OEM: PED 15326830
  • Service: N/A
  • Description: 6-Way F GT 150 Series Unsealed

Accelerator Pedal Position Sensor

Pin

Wire Color

Circuit No.

Function

1

WH/BK

--

Accelerator Pedal Position 5-Volt Reference 1

2

D-BU

--

Accelerator Pedal Position Signal 1

3

BN

--

Accelerator Pedal Position Low Reference 1

4

PU

--

Accelerator Pedal Position Low Reference 2

5

L-GN

--

Accelerator Pedal Position Signal 2

6

BN

--

Accelerator Pedal Position 5-Volt Reference 2

Boost Pressure Sensor


Object Number: 1835112  Size: CH

Connector Part Information

  • OEM: TYCO 368162-1
  • Service: N/A
  • Description: 4-Way F JPT Sealed

Boost Pressure Sensor

Pin

Wire Color

Circuit No.

Function

1

BN/WH

--

Heated O2 Sensor High Control Sensor 2

2

YE

--

Signal

3

GN/WH

--

Heated O2 Sensor Low Control Sensor 1

4

WH

--

Battery Positive Voltage

Camshaft Position (CMP) Sensor


Object Number: 1467004  Size: CH

Connector Part Information

  • OEM: TYCO 85205-1
  • Service: N/A
  • Description: 3-Way F JPT Sealed

Camshaft Position (CMP) Sensor

Pin

Wire Color

Circuit No.

Function

1

WH/BN

--

Signal

2

RD

--

Heated O2 Sensor High Signal

3

PK/BK

--

Engine Main Relay Fused Control (3)

Crankshaft Position (CKP) Sensor


Object Number: 1467004  Size: CH

Connector Part Information

  • OEM: TYCO 85205-1
  • Service: N/A
  • Description: 3-Way F JPT Sealed

Crankshaft Position (CKP) Sensor

Pin

Wire Color

Circuit No.

Function

1

D-GN

--

Input

2

GY

--

Heated O2 Sensor Heater Low Control Bank 1 Sensor 1

3

BK/WH

--

Input

Diesel Particulate Filter Pressure Sensor


Object Number: 1830930  Size: CH

Connector Part Information

  • OEM: FEP 1J0973703
  • Service: N/A
  • Description: 3-Way F Sealed

Diesel Particulate Filter Pressure Sensor

Pin

Wire Color

Circuit No.

Function

1

PU

--

5-Volt Reference (LHD)

D-GN

--

5-Volt Reference (RHD)

2

BN/WH

--

Low Reference

3

D-GN

--

Signal

Engine Coolant Temperature (ECT) Sensor


Object Number: 62426  Size: CH

Connector Part Information

  • OEM: PED 12040753
  • Service: N/A
  • Description: 2-Way F 150 Series Sealed

Engine Coolant Temperature (ECT) Sensor

Pin

Wire Color

Circuit No.

Function

1

GY

--

CTS Ground

2

YE

--

CTS Signal

Exhust Gas Recirculation (EGR) Valve


Object Number: 1467003  Size: CH

Connector Part Information

  • OEM: TYCO 827551-3
  • Service: N/A
  • Description: 2-Way F Timmer Sealed

Exhust Gas Recirculation (EGR) Valve

Pin

Wire Color

Circuit No.

Function

1

PK

--

EGR

2

PK/BK

--

Engine Main Relay Coil Control (3)

Exhust Gas Temperature Sensor 1


Object Number: 1265364  Size: CH

Connector Part Information

  • OEM: 621-02020
  • Service: N/A
  • Description: 2-Way F

Exhust Gas Temperature Sensor 1

Pin

Wire Color

Circuit No.

Function

1

GN

--

Signal 1

2

BK/WH

--

Low Reference

Exhust Gas Temperature Sensor 2


Object Number: 1265364  Size: CH

Connector Part Information

  • OEM: 621-02020
  • Service: N/A
  • Description: 2-Way F

Exhust Gas Temperature Sensor 2

Pin

Wire Color

Circuit No.

Function

1

GN/BK

--

Signal 2

2

BK

--

Low Reference

Fuel Filter Heater/Temperature Sensor


Object Number: 1835094  Size: CH

Connector Part Information

  • OEM: FCI 17260406A
  • Service: N/A
  • Description: 6-Way F 150/280 Series Sealed

Fuel Filter Heater/Temperature Sensor

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

BK

--

Ground (LHD)

Ignition Voltage (RHD)

4

BU

--

Power Take Off Enable Switch (LHD)

Fuel Filter Heater (RHD)

5

GN

--

Heated Oxygen Sensor Low Signal Bank 2 Sensor 1 (LHD)

Fuel Temperature Signal (RHD)

6

BK/WH

--

Heated Oxygen Sensor High Signal Bank 2 Sensor 1 (LHD)

Fuel Temperature Ground (RHD)

Glow Plug Control Unit


Object Number: 1835994  Size: CH

Connector Part Information

  • OEM: FCI 60432001
  • Service: N/A
  • Description: 11-Way F Sealed

Glow Plug Control Unit

Pin

Wire Color

Circuit No.

Function

1

GY

--

Shunt High Signal

2

GY

--

Shunt High Signal

3

GY

--

Shunt High Signal

4

GY

--

Shunt High Signal

5

--

--

Not Used

6

PK/BK

--

Ignition Voltage

7

BK/WH

--

Signal Ground

8

--

--

Not Used

9

WH

--

GPCU 01

10

RD/WH

--

Battery Positive Voltage

11

WH/RD

--

GPCU ST

Fuel Injector 1


Object Number: 784092  Size: CH

Connector Part Information

  • OEM: BOSCH 1928403874
  • Service: N/A
  • Description: 2-Way F Sealed

Fuel Injector 1

Pin

Wire Color

Circuit No.

Function

1

D-GN

--

High

2

WH

--

Low

Fuel Injector 2


Object Number: 784092  Size: CH

Connector Part Information

  • OEM: BOSCH 1928403874
  • Service: N/A
  • Description: 2-Way F Sealed

Fuel Injector 2

Pin

Wire Color

Circuit No.

Function

1

YE/D-BU

--

High

2

D-BU

--

Low

Fuel Injector 3


Object Number: 784092  Size: CH

Connector Part Information

  • OEM: BOSCH 1928403874
  • Service: N/A
  • Description: 2-Way F Sealed

Fuel Injector 3

Pin

Wire Color

Circuit No.

Function

1

YE/BK

--

High

2

D-GN/BK

--

Low

Fuel Injector 4


Object Number: 784092  Size: CH

Connector Part Information

  • OEM: BOSCH 1928403874
  • Service: N/A
  • Description: 2-Way F Sealed

Fuel Injector 4

Pin

Wire Color

Circuit No.

Function

1

YE

--

High

2

GY

--

Low

Fuel Pump Module


Object Number: 1468407  Size: CH

Connector Part Information

  • OEM: KET MG641521
  • Service: N/A
  • Description: 5-Way F 090II Sealed

Fuel Pump Module

Pin

Wire Color

Circuit No.

Function

1

PK

--

Run/Crank Ignition Voltage

2

BN/WH

--

Fuel Level Sensor Low

3

D-BU

--

Primary Fuel Level Sensor

4

GY

--

Fuel Pump Supply Voltage

5

BK

--

Ground

Fuel Rail Pressure Control Valve


Object Number: 784092  Size: CH

Connector Part Information

  • OEM: BOSCH 1928403874
  • Service: N/A
  • Description: 2-Way F Sealed

Fuel Rail Pressure Control Valve

Pin

Wire Color

Circuit No.

Function

1

BN

--

Low

2

D-BU/WH

--

Ground

Fuel Rail Pressure Sensor


Object Number: 1331443  Size: CH

Connector Part Information

  • OEM: BOSCH 1928403968
  • Service: N/A
  • Description: 2-Way F Sealed

Fuel Rail Pressure Sensor

Pin

Wire Color

Circuit No.

Function

1

WH

--

Ground

2

D-BU

--

Signal

3

YE

--

Supply

High Pressure Pump


Object Number: 784092  Size: CH

Connector Part Information

  • OEM: BOSCH 1928403874
  • Service: N/A
  • Description: 2-Way F Sealed

High Pressure Pump

Pin

Wire Color

Circuit No.

Function

1

RD/BK

--

Low

2

BK

--

Ground

Mass Air Flow (MAF) Sensor


Object Number: 1381341  Size: CH

Connector Part Information

  • OEM: BOSCH 1928403736
  • Service: N/A
  • Description: 4-Way F Sealed

Mass Air Flow (MAF) Sensor

Pin

Wire Color

Circuit No.

Function

1

PK

--

Run/Crank Ignition 1 Voltage

2

D-GN

--

Ground

3

D-GN

--

Signal

4

YE

--

STC

Oil Level Switch


Object Number: 635009  Size: CH

Connector Part Information

  • OEM: PED 12052641
  • Service: N/A
  • Description: 2-Way F Metri-Pack 150 Series Sealed

Oil Level Switch

Pin

Wire Color

Circuit No.

Function

1

L-GN

--

Oil Level SW Signal

2

BN

--

Ground

Oil Pressure Switch


Object Number: 95764  Size: CH

Connector Part Information

  • OEM: PKI 832104
  • Service: N/A
  • Description: 1-Way F 150 Series Sealed

Oil Pressure Switch

Pin

Wire Color

Circuit No.

Function

1

BN

--

Oil Pressure Gage Signal

PTC Heater


Object Number: 1830932  Size: CH

Connector Part Information

  • OEM: PED15326878
  • Service: N/A
  • Description: 3-Way F GT 280 Series Unsealed

PTC Heater

Pin

Wire Color

Circuit No.

Function

1

BU/WH

--

PTC Heater Supply Voltage

GY

--

Fuel Tank Pressure Sensor 5-Volt Reference

2

YE/BK

--

PTC Heater Supply Voltage

GY

--

Fuel Tank Pressure Sensor Signal

3

BN

--

PTC Heater Supply Voltage

Throttle Plate Actuator


Object Number: 1835110  Size: CH

Connector Part Information

  • OEM: FEP 42121400
  • Service: N/A
  • Description: 4-Way F Sealed

Throttle Plate Actuator

Pin

Wire Color

Circuit No.

Function

1

BK/WH

--

Ground

2

PK/BK

--

Ignition Voltage

3

GN

--

Feedback

4

WH

--

Control

Water In Fuel Sensor


Object Number: 1467004  Size: CH

Connector Part Information

  • OEM: TYCO 85205-1
  • Service: N/A
  • Description: 3-Way F JPT Sealed

Water In Fuel Sensor

Pin

Wire Color

Circuit No.

Function

1

WH

--

WIF Sensor

2

BK

--

Ground

3

PK

--

Run/Crank Ignition 1 Voltage