GM Service Manual Online
For 1990-2009 cars only
Table 1: Crankshaft Position (CKP) Sensor
Table 2: Engine Coolant Temperature (ECT) Sensor
Table 3: Engine Oil Pressure (EOP) Switch
Table 4: Evaporative Emission (EVAP) Canister Purge Solenoid
Table 5: Evaporative Emission (EVAP) Canister Vent Solenoid
Table 6: Fuel Injector 1
Table 7: Fuel Injector 2
Table 8: Fuel Injector 3
Table 9: Fuel Injector 4
Table 10: Fuel Pump and Sender Assembly
Table 11: Fuel Tank Pressure (FTP) Sensor
Table 12: Heated Oxygen Sensor (HO2S)- Front
Table 13: Heated Oxygen Sensor (HO2S)- Rear
Table 14: Idle Air Control (IAC) Valve
Table 15: Ignition Control Module (ICM)
Table 16: Intake Air Temperature (IAT) Sensor
Table 17: Knock Sensor (KS)
Table 18: Manifold Absolute Pressure (MAP) Sensor
Table 19: Secondary Air Injection (AIR) Solenoid
Table 20: Secondary Air Injection (AIR) Pump
Table 21: Throttle Position (TP) Sensor

Crankshaft Position (CKP) Sensor


Object Number: 655692  Size: CH

Connector Part Information

    • 12162193
    • 2-Way F Metri-Pack 150.2 Series Sealed (BK)

Pin

Wire Color

Circuit Number

Function

A

PU

574

Low Reference

B

YE

573

CKP Sensor Signal

Engine Coolant Temperature (ECT) Sensor


Object Number: 655692  Size: CH

Connector Part Information

    • 12162195
    • 2-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit Number

Function

A

BK

2761

Low Reference

B

YE

410

ECT Sensor Signal

Engine Oil Pressure (EOP) Switch


Object Number: 516595  Size: CH

Connector Part Information

    • 12065299
    • 4-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit Number

Function

A

TN/BK

231

Oil Pressure Switch Signal

Evaporative Emission (EVAP) Canister Purge Solenoid


Object Number: 684795  Size: CH

Connector Part Information

    • 12052643
    • 2-Way F Metri-Pack 150 Series Sealed (RD)

Pin

Wire Color

Circuit Number

Function

A

PK

139

Ignition 1 Voltage

B

D-GN/WH

428

EVAP Canister Purge Solenoid Control

Evaporative Emission (EVAP) Canister Vent Solenoid


Object Number: 684795  Size: CH

Connector Part Information

    • 12052643
    • 2-Way F Metri-Pack 150 Series Sealed (RD)

Pin

Wire Color

Circuit Number

Function

A

OG

2740

Ignition 1 Voltage

B

WH

1310

EVAP Canister Vent Solenoid Control

Fuel Injector 1


Object Number: 366123  Size: CH

Connector Part Information

    • 15236181
    • 2-Way F (BK)

Pin

Wire Color

Circuit Number

Function

A

PK

139

Ignition 1 Voltage

B

BK

1744

Fuel Injector 1 Control

Fuel Injector 2


Object Number: 366123  Size: CH

Connector Part Information

    • 15236181
    • 2-Way F (BK)

Pin

Wire Color

Circuit Number

Function

A

PK

139

Ignition 1 Voltage

B

L-GN/BK

1745

Fuel Injector 2 Control

Fuel Injector 3


Object Number: 366123  Size: CH

Connector Part Information

    • 15236181
    • 2-Way F (BK)

Pin

Wire Color

Circuit Number

Function

A

PK

139

Ignition 1 Voltage

B

PK/BK

1746

Fuel Injector 3 Control

Fuel Injector 4


Object Number: 366123  Size: CH

Connector Part Information

    • 15236181
    • 2-Way F (BK)

Pin

Wire Color

Circuit Number

Function

A

PK

139

Ignition 1 Voltage

B

L-BU/BK

844

Fuel Injector 4 Control

Fuel Pump and Sender Assembly


Object Number: 684908  Size: CH

Connector Part Information

    • 15326631
    • 4-Way F GT 280 Sealed 5.8 (BK)

Pin

Wire Color

Circuit Number

Function

A

PU

30

Fuel Level Sensor Signal

B

GY

120

Fuel Pump Supply Voltage

C

BK

650

Ground

D

BK

2759

Low Reference

Fuel Tank Pressure (FTP) Sensor


Object Number: 516611  Size: CH

Connector Part Information

    • 12059595
    • 3-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit Number

Function

1

GY

2709

5 Volt Reference

2

BK

2759

Low Reference

3

D-GN

890

Fuel Tank Pressure Sensor Signal

Heated Oxygen Sensor (HO2S)- Front


Object Number: 456551  Size: CH

Connector Part Information

    • 12160482
    • 4-Way F (BK)

Pin

Wire Color

Circuit Number

Function

A

TN

1667

HO2S Low Signal

B

PU

1666

HO2S High Signal

C

D-GN

676

HO2S Heater Low Control

D

PK

1639

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S)- Rear


Object Number: 280761  Size: CH

Connector Part Information

    • 12160825
    • 4-Way M Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit Number

Function

A

TN/WH

1669

HO2S Low Signal

B

PU/WH

1668

HO2S High Signal

C

BK/WH

1423

HO2S Heater Low Control

D

PK

1639

Ignition 1 Voltage

Idle Air Control (IAC) Valve


Object Number: 684948  Size: CH

Connector Part Information

    • 15354716
    • 4-Way F GT150 Series Sealed (BK)

Pin

Wire Color

Circuit Number

Function

A

L-GN/BK

444

IAC Coil B High Control

B

L-GN/WH

1749

IAC Coil B Low Control

C

L-BU/BK

1748

IAC Coil A Low Control

D

L-BU/WH

1747

IAC Coil A High Control

Ignition Control Module (ICM)


Object Number: 926863  Size: CH

Connector Part Information

    • 15329032
    • 9-Way F (BK)

Pin

Wire Color

Circuit Number

Function

A

PK

1639

Ignition 1 Voltage

B

WH

423

IC Timing Control

C-D

--

--

Not Used

E

BK

250

Ground

F

BN/WH

633

Camshaft Position Signal

G

OG

406

IC Timing Control B

Intake Air Temperature (IAT) Sensor


Object Number: 646180  Size: CH

Connector Part Information

    • 12162199
    • 2-Way F GT 150 Sealed 3.2x4.0 (BK)

Pin

Wire Color

Circuit Number

Function

A

GY

720

Low Reference

B

TN

472

IAT Sensor Signal

Knock Sensor (KS)


Object Number: 684799  Size: CH

Connector Part Information

    • 12077900
    • 2-Way F Metri-Pack 280 Series Sealed (BK)

Pin

Wire Color

Circuit Number

Function

A

D-BU

496

Knock Sensor Signal

B

GY

1716

Low Reference

Manifold Absolute Pressure (MAP) Sensor


Object Number: 684840  Size: CH

Connector Part Information

    • 12129946
    • 3-Way F Metri-Pack 150 Series Sealed (M GY)

Pin

Wire Color

Circuit Number

Function

A

GY

2704

5 Volt Reference

B

OG/BK

469

Low Reference

C

L-GN

432

MAP Sensor Signal

Secondary Air Injection (AIR) Solenoid


Object Number: 635009  Size: CH

Connector Part Information

    • 12052641
    • 2-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit Number

Function

A

PK/BK

415

AIR Solenoid Supply Voltage

B

PK/BK

429

AIR Solenoid Control

Secondary Air Injection (AIR) Pump


Object Number: 365990  Size: CH

Connector Part Information

    • 12191968
    • 2-Way F Metri-Pack 280 Series Sealed (L-GY)

Pin

Wire Color

Circuit Number

Function

A

RD

78

AIR Pump Supply Voltage

B

BK

150

Ground

Throttle Position (TP) Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • 12110192
    • 3-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit Number

Function

A

GN

2701

5 Volt Reference

B

BK

2752

Low Reference

C

D-BU

417

TP Sensor Signal