GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Refrigerant Pressure Sensor
Table 2: Camshaft Position (CMP) Sensor
Table 3: Crankshaft Position (CKP) Sensor
Table 4: Coolant Level Module
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 #1
Table 9: Fuel Injector #2
Table 10: Fuel Injector #3
Table 11: Fuel Injector #4
Table 12: Fuel Injector #5
Table 13: Fuel Injector #6
Table 14: Fuel Tank Pressure Sensor
Table 15: Fuel Pump and Sender Assembly
Table 16: Heated Oxygen Sensor (HO2S) 1
Table 17: Heated Oxygen Sensor (HO2S) 2
Table 18: Idle Air Control (IAC) Valve
Table 19: Ignition Control Module (ICM) Bank 1
Table 20: Ignition Control Module (ICM) Bank 2
Table 21: Intake Air Temperature (IAT) Sensor
Table 22: Manifold Absolute Pressure (MAP) Sensor
Table 23: Mass Air Flow (MAF) Sensor
Table 24: Park/Neutral Position (PNP) Switch C1
Table 25: Park/Neutral Position (PNP) Switch C2
Table 26: Secondary Air Injection (AIR) Pump
Table 27: Secondary Air Injection Pump Relay
Table 28: Secondary Air Injection (AIR) Pump Motor
Table 29: Secondary Air Injection Valve Solenoid
Table 30: Engine Coolant Temperature (ECT) Sensor
Table 31: Throttle Position (TP) Sensor
Table 32: Vehicle Speed Sensor (VSS)

A/C Refrigerant Pressure Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • 12065286
    • 3-Way F Metri-Pack 150 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

808

Low Reference

B

GRY

2700

5-Volt Reference

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Camshaft Position (CMP) 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

ORN

1799

High Resolution Signal

B

PNK/BLK

632

Low Reference

C

RED

631

12-Volt Reference

Crankshaft Position (CKP) Sensor


Object Number: 40442  Size: CH

Connector Part Information

    • 12162261
    •  6-Way F Metri-Pack 150.2 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/WHT

2867

12 Volt Reference

B

YEL/WHT

2868

Low Reference

C

YEL

573

CKP Sensor 1 Signal

D

LT GRN

1867

12-Volt Reference

E

YEL/BLK

1868

Low Reference

F

LT BLU/

WHT

1800

CKP Sensor 2 Signal

Coolant Level Module


Object Number: 635009  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

YEL/BLK

68

Low Coolant Level Indicator Control

B

BLK

1550

Ground

Evaporative Emission (EVAP) Canister Purge Solenoid


Object Number: 684795  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

PNK

339

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

PNK

339

Ignition 1 Voltage

B

WHT

1310

EVAP Canister Vent Solenoid Control

Exhaust Gas Recirculation (EGR) Valve


Object Number: 684863  Size: CH

Connector Part Information

    • 12186055
    •  5-Way F Metri-Pack 150.2 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

435

EGR Solenoid Control

B

BLK

2753

Sensor Return Exhaust Gas Recirculation (EGR) 1

C

BRN

1456

EGR Valve Position Signal

D

GRY

2702

5-Volt Reference

E

RED

1676

EGR Valve Supply Voltage

Fuel Injector #1


Object Number: 366123  Size: CH

Connector Part Information

    • 15411634
    • 2-Way F Micro-Pack 064 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition 1 Voltage

B

BLK

1744

Fuel Injector 1 Control

Fuel Injector #2


Object Number: 366123  Size: CH

Connector Part Information

    • 15411634
    • 2-Way F Micro-Pack 064 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition 1 Voltage

B

LT GRN/BLK

1745

Fuel Injector 2 Control

Fuel Injector #3


Object Number: 366123  Size: CH

Connector Part Information

    • 15411634
    • 2-Way F Micro-Pack 064 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition 1 Voltage

B

PNK/BLK

1746

Fuel Injector 3 Control

Fuel Injector #4


Object Number: 366123  Size: CH

Connector Part Information

    • 15411634
    • 2-Way F Micro-Pack 064 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Ignition 1 Voltage

B

LT BLU/BLK

844

Fuel Injector 4 Control

Fuel Injector #5


Object Number: 366123  Size: CH

Connector Part Information

    • 15411634
    • 2-Way F Micro-Pack 064 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition 1 Voltage

B

BLK/WHT

845

Fuel Injector 5 Control

Fuel Injector #6


Object Number: 366123  Size: CH

Connector Part Information

    • 15411634
    • 2-Way F MICRO-Pack 064 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

PNK

639

Ignition 1 Voltage

B

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

ORN/BLK

469

Low Reference

B

DK GRN

890

Fuel Tank Pressure Sensor Signal

C

GRY/BLK

416

5-Volt Reference

Fuel Pump and Sender Assembly


Object Number: 456551  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

PPL

30

Fuel Level Sensor Signal

B

GRY

120

Fuel Pump Supply Voltage

C

BLK

150

Ground

D

BLK/WHT

651

Ground

Heated Oxygen Sensor (HO2S) 1


Object Number: 474210  Size: CH

Connector Part Information

    • 12176897
    • 4-Way F Metri-Pack 150 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

808

Low Reference

B

PPL/WHT

1665

HO2S High Signal - Bank 1 Sensor 1

C

BLK/WHT

3113

HO2S Heater Low Control-Bank1 Sensor2

D

PNK

839

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) 2


Object Number: 806613  Size: CH

Connector Part Information

    • 15326423
    • 4-Way M Metri-Pack 150 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

808

Low Reference

B

PPL/WHT

1668

HO2S High Signal Bank 1 Sensor 2

C

BRN

2391

HO2S Heater Low Control-Bank 1 Sensor 2

D

PNK

839

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 Pull to Seat (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 Control Module (ICM) Bank 1


Object Number: 632357  Size: CH

Connector Part Information

    • 15366010
    • 6-Way F GT 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

51

Ground

B

YEL/BLK

2174

Low Reference

C

PPL

2121

IC 1 Control

D

LT BLU

2123

IC 3 Control

E

DK GRN

2125

IC 5 Control

F

PNK

639

Ignition 1 Voltage

Ignition Control Module (ICM) Bank 2


Object Number: 632357  Size: CH

Connector Part Information

    • 15366010
    • 6-Way F GT 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

51

Ground

B

YEL/BLK

2174

Low Reference

C

LT BLU/

WHT

2126

IC 6 Control

D

DK GRN/

WHT

2124

IC 4 Control

E

RED/WHT

2122

IC 2 Control

F

PNK

239

Ignition 1 Voltage

Intake Air Temperature (IAT) Sensor


Object Number: 646180  Size: CH

Connector Part Information

    • 12162196
    • 2-Way F Metri-Pack 150.2 Series Pull to Seat (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

2760

Low Reference

B

TAN

472

IAT Sensor Signal

Manifold Absolute Pressure (MAP) Sensor


Object Number: 684840  Size: CH

Connector Part Information

    • 12129945
    • 3-Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

469

Low Reference

B

LT GRN

432

MAP Sensor Signal

C

GRY

2704

5-Volt Reference

Mass Air Flow (MAF) 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

YEL

492

MAF Sensor Signal

B

BLK/WHT

451

Ground

C

PNK

339

Ignition 1 Voltage

Park/Neutral Position (PNP) Switch C1


Object Number: 535900  Size: CH

Connector Part Information

    • 12129840
    • 7-Way F Metri-Pack Mixed Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

434

Neutral Safety Switch Signal

B

ORN

840

Battery Positive Voltage

C

LT GRN

275

Park Neutral Position Switch Park Signal

D

BLK/WHT

451

Ground

E

YEL/BLK

625

Starter Enable Relay Control (Early Production)

E

PPL

6

Starter Solenoid Crank Voltage (Late Production)

F

LT GRN

24

Backup Lamp Supply Voltage

G

YEL

1737

Neutral Safety Switch Park/Neutral Signal

Park/Neutral Position (PNP) Switch C2


Object Number: 535904  Size: CH

Connector Part Information

    • 12191750
    • 4-Way F Metri-Pack 150 Series Sealed (NAT)

Pin

Wire Color

Circuit No.

Function

A

WHT

776

Transmission Range Switch Signal P

B

YEL

772

Transmission Range Switch Signal B

C

GRY

773

Transmission Range Switch Signal C

D

BLK/WHT

771

Transmission Range Switch Signal A

Secondary Air Injection (AIR) Pump


Object Number: 603213  Size: CH

Connector Part Information

    • 15326681
    • 2-Way F GT 280 Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1350

Ground

B

RED

78

AIR Pump Supply Voltage

Secondary Air Injection Pump Relay


Object Number: 535912  Size: CH

Connector Part Information

    • 12129716
    • 4-Way F Metri-Pack 280 Series Flex Lock (GRY)

Pin

Wire Color

Circuit No.

Function

30

ORN

3040

Battery Positive Voltage

85

PNK

339

Ignition 1 Voltage

86

BRN

436

AIR Pump Relay Control

87

RED

78

AIR Pump Supply Voltage

Secondary Air Injection (AIR) Pump Motor


Object Number: 365990  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

1350

Ground

B

RED

78

AIR Pump Supply Voltage

Secondary Air Injection Valve Solenoid


Object Number: 307909  Size: CH

Connector Part Information

    • 12105333
    • 2-Way F Sealed (BRN)

Pin

Wire Color

Circuit No.

Function

1

PNK

339

Ignition 1 Voltage

2

PNK/BLK

429

AIR Solenoid Control

Engine Coolant Temperature (ECT) Sensor


Object Number: 646176  Size: CH

Connector Part Information

    • 12162195
    •  2-Way F Metri-Pack 150.2 Series Pull to Seat Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Low Reference

B

YEL

410

ECT Sensor Signal

Throttle Position (TP) Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • 12110192
    • 3-Way F Metri-Pack 150 Series Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

2701

5-Volt Reference

B

BLK

2752

Low Reference

C

DK BLU

417

TP Sensor Signal

Vehicle Speed Sensor (VSS)


Object Number: 646406  Size: CH

Connector Part Information

    • 15336004
    • 2-Way F GT 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

401

VSS Low Signal

B

YEL

400

VSS High Signal