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: Engine Oil Level Switch
Table 5: Evaporative Emission (EVAP) Canister Purge Solenoid
Table 6: Evaporative Emission (EVAP) Canister Vent Solenoid
Table 7: Exhaust Gas Recirculation (EGR) Valve
Table 8: Fuel Injector Assembly Harness Connector
Table 9: Fuel Tank Pressure Sensor
Table 10: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Table 11: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Table 12: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Table 13: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Table 14: Idle Air Control (IAC) Valve
Table 15: Ignition Coil
Table 16: Ignition Control Module (ICM) (Coil Driver)
Table 17: Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor
Table 18: Knock Sensor (KS) (4.3L)
Table 19: Manifold Absolute Pressure (MAP) Sensor
Table 20: Mass Air Flow (MAF) Sensor
Table 21: Park/Neutral Position (PNP) Switch - C1
Table 22: Park/Neutral Position (PNP) Switch - C2
Table 23: Secondary Air Injection Reaction (AIR) Pump Relay
Table 24: Secondary Air Injection (AIR) Pump
Table 25: Secondary Air Injection (AIR) Solenoid (Except L18)
Table 26: Throttle Positon (TP) Sensor
Table 27: Vehicle Speed Sensor (VSS)

Camshaft Position (CMP) Sensor


Object Number: 684840  Size: CH

Connector Part Information

    • 12110293
    • 3 Way F Metri-Pack 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/BLK

632

Low Reference

B

BRN/WHT

633

CMP Sensor Signal

C

PNK

239

Ignition 1 Voltage

Crankshaft Position (CKP) Sensor


Object Number: 62453  Size: CH

Connector Part Information

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

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: 237066  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

GRY

720

Low Reference

B

YEL

410

ECT Sensor Signal

Engine Oil Level Switch


Object Number: 635009  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BRN

1174

Oil Level Switch Signal

B

BLK

550

Ground

Evaporative Emission (EVAP) Canister Purge Solenoid


Object Number: 684829  Size: CH

Connector Part Information

    • 12124037
    • 2-Way F Metri-Pack 150 Series Sealed (BLK)

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 -NM2

C

BRN

1456

EGR Valve Position Signal -NM2

D

GRY

596

5 Volt Reference -NM2

E

RED

1676

EGR Valve Supply Voltage -NM2

Fuel Injector Assembly Harness Connector


Object Number: 39782  Size: CH

Connector Part Information

    • 12177083
    • 21 Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

845

Fuel Injector 5 Control

B

PNK

1039

Ignition 1 Voltage

C

PNK/BLK

1746

Fuel Injector 3 Output

D

PNK

1039

Ignition 1 Voltage

E

PNK

1039

Ignition 1 Voltage

F

BLK

1744

Fuel Injector 1 Control

G

LT GRN/BLK

1745

Fuel Injector 2 Control

H

PNK

1239

Ignition 1 Voltage

J

PNK

1239

Ignition 1 Voltage

K

LT BLU/BLK

844

Fuel Injector 4 Control

L

PNK

1239

Ignition 1 Voltage

M

YEL/BLK

846

Fuel Injector 6 Control

Fuel Tank Pressure 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 -NM2

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1


Object Number: 518981  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1653

HO2S Low Signal [- Bank 1 Sensor 1]

B

PPL/WHT

1665

HO2S High Signal [- Bank 1 Sensor 1]

C

BLK

550

Ground

D

PNK

539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2


Object Number: 518981  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1669

HO2S Low Signal [- Bank 1 Sensor 2]

B

PPL/WHT

1668

HO2S High Signal [- Bank 1 Sensor 2]

C

BLK

550

Ground

D

PNK

1539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1


Object Number: 684854  Size: CH

Connector Part Information

    • 1216144
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

1667

HO2S Low Signal [- Bank 2 Sensor 1]

B

PPL

1666

HO2S High Signal [- Bank 2 Sensor 1]

C

BLK

550

Ground

D

PNK

539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2


Object Number: 518981  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

TAN

1671

HO2S Low Signal [- Bank 2 Sensor 2]

B

PPL

1670

HO2S High Signal [- Bank 2 Sensor 2]

C

BLK

550

Ground

D

PNK

1539

Ignition 1 Voltage

Idle Air Control (IAC) Valve


Object Number: 38608  Size: CH

Connector Part Information

    • 12162190
    • 4-Way F Metri-Pack 150.2 Series Sealed P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN /BLK

444

IAC Coil B Low Control

B

LT GRN /WHT

1749

IAC Coil B High Control

C

LT BLU /BLK

1748

IAC Coil A Low Control

D

LT BLU /WHT

1747

IAC Coil A High Control

Ignition Coil


Object Number: 68743  Size: CH

Connector Part Information

    • 12146121
    • 3 Way F Metri-Pack 150 (BRN)

Pin

Wire Color

Circuit No.

Function

A

PNK

1039

Ignition 1 Voltage

B

--

--

Not Used

C

WHT/BLK

1847

Ignition Coil Output

Ignition Control Module (ICM) (Coil Driver)


Object Number: 38608  Size: CH

Connector Part Information

    • 12162189
    • 4 Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

1239

Ignition 1 Voltage

B

WHT

423

IC Timing Control

C

BLK

550

Ground

D

WHT/BLK

1847

Ignition Coil Output - Bank - 1

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) (4.3L)


Object Number: 684804  Size: CH

Connector Part Information

    • 12110179
    • 2-Way F Metri-Pack 280 Series .1 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

496

KS [1] Signal

B

GRY

1716

Knock Sensor - Return

Manifold Absolute Pressure (MAP) Sensor


Object Number: 684840  Size: CH

Connector Part Information

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

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

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

Park/Neutral Position (PNP) Switch - C1


Object Number: 535904  Size: CH

Connector Part Information

    • 12191757
    • 4-Way F Metri-Pack 150 (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

771

Transmission Range Switch Signal A

B

GRY

773

Transmission Range Switch Signal C & MT1

C

WHT

776

Transmission Range Switch Signal P & MT1

D

YEL

772

Transmission Range Switch Signal B & MT1

Park/Neutral Position (PNP) Switch - C2


Object Number: 535900  Size: CH

Connector Part Information

    • 12129840
    • 7-Way F Metri-Pack 150 280 (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

1786

Transmission Park/Neutral - Signal - 1

B

LT GRN

275

Park Neutral Position Switch Park Signal

C

PNK

839

Ignition 1 Voltage

D

BLK/WHT

451

Ground & M30/MT1/M74

E

PPL/WHT

1035

Starter Relay Coil Supply Voltage

F

LT GRN

24

Backup Lamp Supply Voltage

G

YEL

1737

Neutral Safety Switch Park/Neutral Signal

H

--

--

Not Used

Secondary Air Injection Reaction (AIR) Pump 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

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 (AIR) Pump


Object Number: 365990  Size: CH

Connector Part Information

    • 12191968
    • 2-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

RED

78

AIR Pump Supply Voltage

b

BLK

550

Ground

Secondary Air Injection (AIR) Solenoid (Except L18)


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

Throttle Positon (TP) Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • 12110192
    • 3 Way F 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

416

5 Volt Reference

B

BLK

452

Low Reference

C

DK BLU

417

TP Sensor Signal

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