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 Emission (EVAP) Canister Purge Solenoid
Table 5: Evaporative Emission (EVAP) Canister Vent Solenoid
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 Injector 7
Table 14: Fuel Injector 8
Table 15: Fuel Pump (FP) Relay - Secondary
Table 16: Fuel Pump And Sender Assembly - Primary
Table 17: Fuel Pump And Sender Assembly - Secondary
Table 18: Fuel Tank Pressure (FTP) Sensor
Table 19: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Table 20: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Table 21: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Table 22: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Table 23: Ignition Coil 1
Table 24: Ignition Coil 2
Table 25: Ignition Coil 3
Table 26: Ignition Coil 4
Table 27: Ignition Coil 5
Table 28: Ignition Coil 6
Table 29: Ignition Coil 7
Table 30: Ignition Coil 8
Table 31: Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor
Table 32: Knock Sensor (KS) - Bank 1
Table 33: Knock Sensor (KS) - Bank 2
Table 34: Manifold Absolute Pressure (MAP) Sensor
Table 35: Power Take Off (PTO) Relay
Table 36: Power Take Off (PTO) Switch
Table 37: Secondary Air Injection (AIR) Pump
Table 38: Secondary Air Injection (AIR) Relay
Table 39: Secondary Air Injection Reaction (AIR) Valve Solenoid
Table 40: Vehicle Speed Sensor (VSS)
Table 41: Vehicle Speed Sensor Adapter - C1
Table 42: Vehicle Speed Sensor Adapter - C2

Camshaft Position (CMP) Sensor


Object Number: 684840  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

RED

631

12 Volt Reference

B

PNK/BLK

632

Low Reference

C

BRN/WHT

633

CMP Sensor Signal

Crankshaft Position (CKP) Sensor


Object Number: 366117  Size: CH

Connector Part Information

    • 15324165
    • 3-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1867

12 Volt Reference

B

YEL/BLK

1868

Low Reference

C

DK BLU/WHT

1869

CKP Sensor Signal

Engine Coolant Temperature (ECT) Sensor


Object Number: 655807  Size: CH

Connector Part Information

    • 15324589
    • 3-Way F Metri-Pack 150 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

GRY

720

Low Reference

B

YEL

410

ECT Sensor Signal

C

--

--

Not Used

Evaporative Emission (EVAP) Canister Purge Solenoid


Object Number: 684795  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Ignition 1 Voltage

B

DK GRN/WHT

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 (RED)

Pin

Wire Color

Circuit No.

Function

A

WHT

1310

EVAP Canister Vent Solenoid Control

B

PNK

239

Ignition 1 Voltage

Exhaust Gas Recirculation (EGR) Valve


Object Number: 684863  Size: CH

Connector Part Information

    • 12186056
    • 5-Way F METRI PAC 150.2 P2S Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

257

EGR Solenoid Control

B

PPL

719

Low Reference

C

BRN

1456

EGR Valve Position Signal

D

GRA

596

5 Volt Reference

E

RED

1676

EGR Valve Supply Voltage

Fuel Injector 1


Object Number: 684833  Size: CH

Connector Part Information

    • 12129140
    • 2-Way F Metri-Pack 280.1 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1744

Fuel Injector 1 Control

B

PNK

1039

Ignition 1 Voltage

Fuel Injector 2


Object Number: 684833  Size: CH

Connector Part Information

    • 12129140
    • 2-Way F Metri-Pack 280.1 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

1745

Fuel Injector 2 Control

B

PNK

1239

Ignition 1 Voltage

Fuel Injector 3


Object Number: 684833  Size: CH

Connector Part Information

    • 12129140
    • 2-Way F Metri-Pack 280.1 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/BLK

1746

Fuel Injector 3 Control

B

PNK

1039

Ignition 1 Voltage

Fuel Injector 4


Object Number: 684833  Size: CH

Connector Part Information

    • 12129140
    • 2-Way F Metri-Pack 280.1 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/BLK

844

Fuel Injector 4 Control

B

PNK

1239

Ignition 1 Voltage

Fuel Injector 5


Object Number: 684833  Size: CH

Connector Part Information

    • 12129140
    • 2-Way F Metri-Pack 280.1 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

845

Fuel Injector 5 Control

B

PNK

1039

Ignition 1 Voltage

Fuel Injector 6


Object Number: 684833  Size: CH

Connector Part Information

    • 12129140
    • 2-Way F Metri-Pack 280.1 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL/BLK

846

Fuel Injector 6 Control

B

PNK

1239

Ignition 1 Voltage

Fuel Injector 7


Object Number: 684833  Size: CH

Connector Part Information

    • 12129140
    • 2-Way F Metri-Pack 280.1 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED/BLK

877

Fuel Injector 7 Control

B

PNK

1039

Ignition 1 Voltage

Fuel Injector 8


Object Number: 684833  Size: CH

Connector Part Information

    • 12129140
    • 2-Way F Metri-Pack 280.1 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU/WHT

878

Fuel Injector 8 Control

B

PNK

1239

Ignition 1 Voltage

Fuel Pump (FP) Relay - Secondary


Object Number: 535912  Size: CH

Connector Part Information

    • 12129716
    • 4-Way F Metri-Pack 280 FLX LK (MD GRY)

Pin

Wire Color

Circuit No.

Function

30

PNK

239

Ignition 1 Voltage

85

GRY

120

Fuel Pump Supply Voltage

86

TAN

1465

Fuel Pump Relay Control [- Secondary]

87

LT GRN

1058

Fuel Balance Pump Supply Voltage

Fuel Pump And Sender Assembly - Primary


Object Number: 518981  Size: CH

Connector Part Information

    • 12160482
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1589

Fuel Level Sensor Signal [- Primary]

B

GRA

120

Fuel Pump Supply Voltage

C

BLK

1650

Ground

D

ORN/BLK

510

Low Reference

Fuel Pump And Sender Assembly - Secondary


Object Number: 518981  Size: CH

Connector Part Information

    • 12160482
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

1936

Fuel Level Sensor Signal [- Secondary]

B

LT GRN

1058

Fuel Balance Pump Supply Voltage

C

BLK

1650

Ground

D

ORN/BLK

510

Low Reference

Fuel Tank Pressure (FTP) Sensor


Object Number: 516611  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Low Reference

B

DK GRN

890

Fuel Tank Pressure Sensor Signal

C

GRY

474

5 Volt Reference

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1


Object Number: 628099  Size: CH

Connector Part Information

    • 12092840
    • 5-Way M Metri-Pack 150 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal

B

PPL/WHT

1665

HO2S High Signal [- Bank 1 Sensor 1]

D

LT GRN/WHT

3213

H02S Heater Return

E

LT GRN

3212

HO2S Low Signal [- Bank 1 Sensor 1]

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2


Object Number: 655691  Size: CH

Connector Part Information

    • 12146046
    • 4-Way F M/P 150 (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal

B

PPL/WHT

1668

HO2S High Signal [- Bank 1 Sensor 2]

D

PNK

1539

Ignition 1 Voltage

E

BLK/WHT

3122

HO2S Low Signal [- Bank 1 Sensor 2]

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1


Object Number: 628099  Size: CH

Connector Part Information

    • 12092840
    • 5-Way M Metri-Pack 150 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal

B

PPL

1666

HO2S High Signal [- Bank 2 Sensor 1]

D

LT GRN/WHT

3213

H02S Heater Return

E

LT GRN

3212

HO2S Low Signal [- Bank 1 Sensor 1]

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2


Object Number: 628099  Size: CH

Connector Part Information

    • 12092840
    • 5-Way M Metri-Pack 150 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal

B

PPL

1670

HO2S High Signal [- Bank 2 Sensor 2]

D

RED/WHT

3222

H02S Heater Supply Voltage

E

BLK

550

Ground

Ignition Coil 1


Object Number: 684854  Size: CH

Connector Part Information

    • 12162144
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

550

Ground

B

BRN

2129

Low Reference

C

PPL

2121

IC 1 Control

D

PNK

1039

Ignition 1 Voltage

Ignition Coil 2


Object Number: 684854  Size: CH

Connector Part Information

    • 12162144
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

550

Ground

B

BRN/WHT

2130

Low Reference

C

RED/WHT

2122

IC 2 Control

D

PNK

1239

Ignition 1 Voltage

Ignition Coil 3


Object Number: 684854  Size: CH

Connector Part Information

    • 12162144
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

550

Ground

B

BRN

2129

Low Reference

C

LT BLU

2123

IC 3 Control

D

PNK

1039

Ignition 1 Voltage

Ignition Coil 4


Object Number: 684854  Size: CH

Connector Part Information

    • 12162144
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

550

Ground

B

BRN/WHT

2130

Low Reference

C

DK GRN/WHT

2124

IC 4 Control

D

PNK

1239

Ignition 1 Voltage

Ignition Coil 5


Object Number: 684854  Size: CH

Connector Part Information

    • 12162144
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

550

Ground

B

BRN

2129

Low Reference

C

DK GRN

2125

IC 5 Control

D

PNK

1039

Ignition 1 Voltage

Ignition Coil 6


Object Number: 684854  Size: CH

Connector Part Information

    • 12162144
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

550

Ground

B

BRN/WHT

2130

Low Reference

C

LT BLU/WHT

2126

IC 6 Control

D

PNK

1239

Ignition 1 Voltage

Ignition Coil 7


Object Number: 684854  Size: CH

Connector Part Information

    • 12162144
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

550

Ground

B

BRN

2129

Low Reference

C

RED

2127

IC 7 Control

D

PNK

1039

Ignition 1 Voltage

Ignition Coil 8


Object Number: 684854  Size: CH

Connector Part Information

    • 12162144
    • 4-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

550

Ground

B

BRN/WHT

2130

Low Reference

C

PPL/WHT

2128

IC 8 Control

D

PNK

1239

Ignition 1 Voltage

Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor


Object Number: 366067  Size: CH

Connector Part Information

    • 15305555
    • 5-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

552

Low Reference

B

TAN

472

IAT Sensor Signal

C

BLK/WHT

451

Ground

D

PNK

239

Ignition 1 Voltage

E

YEL

492

MAF Sensor Signal

Knock Sensor (KS) - Bank 1


Object Number: 35437  Size: CH

Connector Part Information

    • 15355362
    • 2-Way F Metri-Pack 150 Series Sealed (NAT)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

496

Knock Sensor 1 Signal (KS)

B

--

--

Not Used

Knock Sensor (KS) - Bank 2


Object Number: 35437  Size: CH

Connector Part Information

    • 15355362
    • 2-Way F Metri-Pack 150 Series Sealed (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1876

Knock Sensor 2 Signal (KS)

B

--

--

Not Used

Manifold Absolute Pressure (MAP) Sensor


Object Number: 684840  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

469

Low Reference

B

LT GRN

432

MAP Sensor Signal

C

GRY

597

5 Volt Reference

Power Take Off (PTO) Relay


Object Number: 535912  Size: CH

Connector Part Information

    • 12129716
    • 4-Way F Metri-Pack 280 FLX LK (MD GRY)

Pin

Wire Color

Circuit No.

Function

30

ORN

3440

Battery Positive Voltage

85

LT GRN

488

Power Take Off (PTO) Relay Switched - Enable

86

PPL

2562

Power Take Off (PTO) Relay Control - Engage

87

WHT

2561

Power Take Off (PTO) Relay Signal

Power Take Off (PTO) Switch


Object Number: 280767  Size: CH

Connector Part Information

    • 12186098
    • 8-Way F Metri-Pack 150 Series (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

41

Ignition 3 Voltage

B

LT GRN

488

Power Take Off (PTO) relay Switched Enable Control

C

GRY

8

Instrument Panel Lamp Supply Voltage - 1

D

GRY

397

Cruise Control On Switch Signal

E

YEL

2522

Power Take Off (PTO) Status

F

BLK

1850

Ground

G

DK BLU

84

Cruise Control Set/Coast Switch Signal

H

PPL/WHT

1382

LED Dimming Signal

Secondary Air Injection (AIR) Pump


Object Number: 603213  Size: CH

Connector Part Information

    • 15326679
    • 2-Way F GT 280 Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED

78

AIR Pump Supply Voltage

B

BLK

550

Ground

Secondary Air Injection (AIR) Relay


Object Number: 535912  Size: CH

Connector Part Information

    • 12129716
    • 4-Way F Metri-Pack 280 Series Sealed (MD GRY)

Pin

Wire Color

Circuit No.

Function

30

RED

642

Battery Positive Voltage

85

PNK

639

Ignition 1 Voltage

86

BRN

436

AIR Pump Relay Control

87

RED

78

AIR Pump Supply Voltage

Secondary Air Injection Reaction (AIR) Valve Solenoid


Object Number: 635009  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

RED

78

AIR Pump Supply Voltage

B

BLK

550

Ground

Vehicle Speed Sensor (VSS)


Object Number: 655692  Size: CH

Connector Part Information

    • 12162193
    • 2-Way F M/P 150.2 P2S SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High Signal

B

LT GRN/BLK

822

VSS Low Signal

Vehicle Speed Sensor Adapter - C1


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • 2-Way F Metri-Pack 150.2 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High Signal

B

LT GRN/BLK

822

VSS Low Signal

Vehicle Speed Sensor Adapter - C2


Object Number: 655692  Size: CH

Connector Part Information

    • 12162193
    • 2-Way F M/P 150.2 P2S SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

822

VSS Low Signal

B

PPL/WHT

821

VSS High Signal