GM Service Manual Online
For 1990-2009 cars only
Table 1: Camshaft Position (CMP) Sensor
Table 2: Crankshaft Position (CKP) Sensor
Table 3: Engine Coolant Temperature (ECT) Sensor
Table 4: Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
Table 5: Evaporative Emissions (EVAP) Canister Vent Solenoid Valve
Table 6: Exhaust Gas Recirculation (EGR) Valve
Table 7: Fuel Injector 1
Table 8: Fuel Injector 2
Table 9: Fuel Injector 3
Table 10: Fuel Injector 4
Table 11: Fuel Injector 5
Table 12: Fuel Injector 6
Table 13: Fuel Pump
Table 14: Fuel Tank Pressure (FTP) Sensor
Table 15: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Table 16: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Table 17: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Table 18: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Table 19: Ignition Coil Module 1
Table 20: Ignition Coil Module 2
Table 21: Ignition Coil Module 3
Table 22: Ignition Coil Module 4
Table 23: Ignition Coil Module 5
Table 24: Ignition Coil Module 6
Table 25: Intake Air Temperature (IAT) Sensor
Table 26: Intake Manifold Tuning Valve Solenoid
Table 27: Knock Sensor (KS) 1
Table 28: Knock Sensor (KS) 2
Table 29: Manifold Absolute Pressure (MAP) Sensor
Table 30: Mass Air Flow (MAF) Sensor
Table 31: Rough Road Wheel Speed Sensor
Table 32: Throttle Body

Camshaft Position (CMP) Sensor


Object Number: 1467004  Size: CH

Connector Part Information

    • AMP 85205-1
    • 3-Way F JR Power Timer 3P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

BN/WH

633

Camshaft Position (CMP) Sensor Signal

2

D-BU/BK

632

Low Reference

3

PK/BK

1846

Ignition 1 Voltage

Crankshaft Position (CKP) Sensor


Object Number: 1467004  Size: CH

Connector Part Information

    • AMP 85205-1
    • 3-Way F JR Power Timer 3P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

D-BU/WH

1869

Crankshaft Position (CKP) Sensor Signal

2

YE/BK

1868

Low Reference

3

D-GN

1704

Ground

Engine Coolant Temperature (ECT) Sensor


Object Number: 1467003  Size: CH

Connector Part Information

    • AK 0442
    • 2-Way Connector F (BK)

Pin

Wire Color

Circuit Number

Function

1

YE

410

Engine Coolant Temperature (ECT) Sensor

2

BK/WH

645

Ground

Evaporative Emissions (EVAP) Canister Purge Solenoid Valve


Object Number: 1467003  Size: CH

Connector Part Information

    • AMP 85202-1
    • 2-Way F JR Power Timer 2P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

PK/WH

139

Ignition 1 Voltage

2

D-GN/WH

428

EVAP Canister Purge Valve Solenoid Control

Evaporative Emissions (EVAP) Canister Vent Solenoid Valve


Object Number: 1481266  Size: CH

Connector Part Information

    • AK 32229
    • 2-Way F (BN)

Pin

Wire Color

Circuit Number

Function

A

PU

1986

EVAP Canister Vent Solenoid Control

B

PK/BK

1846

Ignition 1 Voltage

Exhaust Gas Recirculation (EGR) Valve


Object Number: 684863  Size: CH

Connector Part Information

    • PED 12129946
    • 5-Way F Metri-Pack 150 Series, Sealed (GY)

Pin

Wire Color

Circuit Number

Function

1

GY/BK

435

Exhaust Gas Recirculation (EGR) Solenoid Control

2

D-BU/BK

650

Low Reference

3

D-GN/WH

1456

Exhaust Gas Recirculation (EGR) Valve Position Sensor Signal

4

GY

416

5-Volt Reference

5

PK/WH

139

Ignition 1 Voltage

Fuel Injector 1


Object Number: 1467003  Size: CH

Connector Part Information

    • AMP 85202-1
    • 2-Way F JR Power Timer 2P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

PK/WH

139

Ignition 1 Voltage

2

BK

1744

Fuel Injector 1 Control

Fuel Injector 2


Object Number: 1467003  Size: CH

Connector Part Information

    • AMP 85202-1
    • 2-Way F JR Power Timer 2P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

PK/WH

139

Ignition 1 Voltage

2

L-GN/BK

1745

Fuel Injector 2 Control

Fuel Injector 3


Object Number: 1467003  Size: CH

Connector Part Information

    • AMP 85202-1
    • 2-Way F JR Power Timer 2P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

PK/WH

139

Ignition 1 Voltage

2

RD/BK

1746

Fuel Injector 3 Control

Fuel Injector 4


Object Number: 1467003  Size: CH

Connector Part Information

    • AMP 85202-1
    • 2-Way F JR Power Timer 2P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

PK/WH

139

Ignition 1 Voltage

2

D-BU/BK

844

Fuel Injector 4 Control

Fuel Injector 5


Object Number: 1467003  Size: CH

Connector Part Information

    • AMP 85202-1
    • 2-Way F JR Power Timer 2P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

PK/WH

139

Ignition 1 Voltage

2

D-BU/BK

845

Fuel Injector 5 Control

Fuel Injector 6


Object Number: 1467003  Size: CH

Connector Part Information

    • AMP 85202-1
    • 2-Way F JR Power Timer 2P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

PK/WH

139

Ignition 1 Voltage

2

YE/BK

846

Fuel Injector 6 Control

Fuel Pump


Object Number: 1468407  Size: CH

Connector Part Information

    • KET MG 641521
    • 5-Way F Device Connector (GY)

Pin

Wire Color

Circuit Number

Function

1

D-BU

1936

Fuel Level Sensor Signal

2

YE

172

Low Fuel Indicator Signal

3

GY

605

Low Reference

4

GY

120

Fuel Pump Supply Voltage

5

BK

550

Ground

Fuel Tank Pressure (FTP) Sensor


Object Number: 1497773  Size: CH

Connector Part Information

    • AK 32311
    • 3-Way Connector F (BK)

Pin

Wire Color

Circuit Number

Function

A

BK

750

Ground - 5-Volt Reference

B

D-GN

890

Fuel Tank Pressure (FTP) Signal

C

GY

605

Low Reference

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1


Object Number: 1466979  Size: CH

Connector Part Information

    • AMP 174257-2
    • 4-Way M 070 Series Econoseal J MK-2 Plug Ass'y 4P (BK)

Pin

Wire Color

Circuit Number

Function

1

PU/WH

1665

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Signal

2

PK/BK

1846

Ignition 1 Voltage

3

D-BU/BK

650

Low Reference

4

BN/WH

1653

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Heater Control

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2


Object Number: 1468381  Size: CH

Connector Part Information

    • KUM PB 625-04027
    • 4-Way F NMWP 02F-B Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

D-GN

1663

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 Signal

2

PK/BK

1846

Ignition 1 Voltage

3

BK

750

Low Reference

4

WH

1654

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 Heater Control

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1


Object Number: 1466979  Size: CH

Connector Part Information

    • AMP 174257-2
    • 4-Way M 070 Series Econoseal J MK-2 Plug Ass'y 4P (BK)

Pin

Wire Color

Circuit Number

Function

1

PU

1666

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 Signal

2

PK/BK

1846

Ignition 1 Voltage

3

D-BU/BK

650

Low Reference

4

BN

1667

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 Heater Control

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2


Object Number: 1468381  Size: CH

Connector Part Information

    • KUM PB 625-04027
    • 4-Way F NMWP 02F-B Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

D-GN/WH

1664

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 Signal

2

PK/BK

1846

Ignition 1 Voltage

3

BK

750

Low Reference

4

WH/BK

1655

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 Heater Control

Ignition Coil Module 1


Object Number: 1497775  Size: CH

Connector Part Information

    • AK 32325
    • 3-Way Connector F (GY)

Pin

Wire Color

Circuit Number

Function

A

PK

739

Ignition 1 Voltage

B

L-BU

1153

Ignition Coil 1 Control

C

BK

350

Ground

Ignition Coil Module 2


Object Number: 1497775  Size: CH

Connector Part Information

    • AK 32325
    • 3-Way Connector F (GY)

Pin

Wire Color

Circuit Number

Function

A

PK

739

Ignition 1 Voltage

B

D-BU

1154

Ignition Coil 2 Control

C

BK

350

Ground

Ignition Coil Module 3


Object Number: 1497775  Size: CH

Connector Part Information

    • AK 32325
    • 3-Way Connector F (GY)

Pin

Wire Color

Circuit Number

Function

A

PK

739

Ignition 1 Voltage

B

YE

1155

Ignition Coil 3 Control

C

BK

350

Ground

Ignition Coil Module 4


Object Number: 1497775  Size: CH

Connector Part Information

    • AK 32325
    • 3-Way Connector F (GY)

Pin

Wire Color

Circuit Number

Function

A

PK

739

Ignition 1 Voltage

B

RD

1156

Ignition Coil 4 Control

C

BK

350

Ground

Ignition Coil Module 5


Object Number: 1497775  Size: CH

Connector Part Information

    • AK 32325
    • 3-Way Connector F (GY)

Pin

Wire Color

Circuit Number

Function

A

PK

739

Ignition 1 Voltage

B

D-GN

1157

Ignition Coil 5 Control

C

BK

350

Ground

Ignition Coil Module 6


Object Number: 1497775  Size: CH

Connector Part Information

    • AK 32325
    • 3-Way Connector F (GY)

Pin

Wire Color

Circuit Number

Function

A

PK

739

Ignition 1 Voltage

B

GY

1158

Ignition Coil 6 Control

C

BK

350

Ground

Intake Air Temperature (IAT) Sensor


Object Number: 1467003  Size: CH

Connector Part Information

    • AMP 85202-1
    • 2-Way F JR Power Timer 2P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

BN

472

Intake Air Temperature (IAT) Sensor Signal

2

D-BU/BK

632

Low Reference

Intake Manifold Tuning Valve Solenoid


Object Number: 1466982  Size: CH

Connector Part Information

    • AMP 174352-2
    • 2-Way F Econoseal J Mark II + Connector Plug Housing (BK)

Pin

Wire Color

Circuit Number

Function

1

PK/WH

139

Ignition 1 Voltage

2

WH/BK

962

Intake Manifold Tuning Valve Solenoid Control

Knock Sensor (KS) 1


Object Number: 1466993  Size: CH

Connector Part Information

    • AMP 368215-1
    • 3-Way F JPT 3P Ass'y for Knock Sensor (GY)

Pin

Wire Color

Circuit Number

Function

1

WH

496

Knock Sensor (KS) 1 Signal

2

OG

452

Low Reference

3

BK/WH

1057

Shield Ground

Knock Sensor (KS) 2


Object Number: 1466993  Size: CH

Connector Part Information

    • AMP 368215-1
    • 3-Way F JPT 3P Ass'y for Knock Sensor (GY)

Pin

Wire Color

Circuit Number

Function

1

D-BU/WH

1876

Knock Sensor (KS) 2 Signal

2

YE/BK

452

Low Reference

3

BK/WH

1057

Shield Ground

Manifold Absolute Pressure (MAP) Sensor


Object Number: 684840  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit Number

Function

A

BK

470

Low Reference

B

L-GN

432

Manifold Absolute Pressure (MAP) Sensor Signal

C

GY/BK

469

5-Volt Reference

Mass Air Flow (MAF) Sensor


Object Number: 1467004  Size: CH

Connector Part Information

    • AMP 85205-1
    • 3-Way F JR Power Timer 3P Hsg Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

L-BU/BK

808

Low Reference

2

YE

492

Mass Air Flow (MAF) Sensor Signal

3

PK/BK

1846

Ignition 1 Voltage

Rough Road Wheel Speed Sensor


Object Number: 537107  Size: CH

Connector Part Information

    • PED 12052644
    • 2-Way F Metri-Pack 150 Series, Sealed (L-GY)

Pin

Wire Color

Circuit Number

Function

A

BK

250

Ground

B

WH

1100

Rough Road Wheel Speed Sensor Signal

Throttle Body


Object Number: 1466987  Size: CH

Connector Part Information

    • AMP 174982-2
    • 8-Way M 070 Series Econoseal J-Mark II + 8P (BK)

Pin

Wire Color

Circuit Number

Function

1

OG/BK

425

Idle Speed Motor Return

2

GY

474

5-Volt Reference

3

--

--

Not Used

4

D-BU/WH

417

Idle Motor Position Signal

5

D-BU

426

Idle Speed Motor Feed

6

RD

427

Idle Switch Position

7

D-GN

534

Throttle Position (TP) Sensor Signal

8

BK/WH

645

Low Reference