GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Astro - 4WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Engine Controls Connector End Views
Table 1: Camshaft Position Sensor
Table 2: Crankshaft Position Sensor
Table 3: Distributor Ignition Control Module
Table 4: EGR Linear Solenoid Valve
Table 5: Engine Coolant Temperature Sensor
Table 6: Engine Oil Pressure Sensor
Table 7: Evaporator Emission Canister Purge Valve Solenoid
Table 8: Evaporator Emissions Canister Vent Valve Solenoid
Table 9: Fuel Pressure Sensor Connector
Table 10: Fuel Pump and Sender Connector
Table 11: Heated Oxygen Sensor(HO2S) Bank #1 Sensor #1
Table 12: Heated Oxygen Sensor (HO2S) Bank #1 Sensor #3
Table 13: Heated Oxygen Sensor (HO2S) Bank #2 Sensor #1
Table 14: Idle Air Control Valve Motor
Table 15: Ignition Coil
Table 16: Intake Air Temperature Sensor
Table 17: Knock Sensor
Table 18: Manifold Absolute Pressure Sensor
Table 19: Mass Air Flow Sensor
Table 20: Park/Neutral Position Switch (C1)
Table 21: Park/Neutral Position Switch (C2)
Table 22: Throttle Position Sensor
Table 23: Vehicle Speed Sensor Connector (Engine)

Camshaft Position Sensor


Object Number: 68730 Size: CH

Connector Part Information
    • 12110293
    • 3-Way Female 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/BLK

632

Camshaft Position Sensor Return

B

BRN/WHT

633

Camshaft Position Sensor Signal

C

PNK

539

Fuse Output - Ignition 1 - Type 3 Fuse

Crankshaft Position Sensor


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • 3-Way Female M/P 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output - Ignition 1 - Type 3

B

PPL

574

Crankshaft Position Sensor Return

C

YEL

573

Crankshaft Position Sensor Signal

Distributor Ignition Control Module


Object Number: 38608 Size: CH

Connector Part Information
    • 12162189
    • 4-Way Female M/P 150.2 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output - Ignition 1 - Type 3 Fuse

B

WHT

423

Electronic Spark Timing Control Signal

C

BLK

550

Ground

D

WHT/BLK

1847

Ignition Coil Output - Bank B

EGR Linear Solenoid Valve


Object Number: 68773 Size: CH

Connector Part Information
    • 12186057
    • 5-Way Female M/P 150.2 (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

257

Exhaust Gas Recirculation Vent Solenoid Output

B

BLK

470

Sensor Return

C

BRN

1456

Exhaust Gas Recirculation Vent Solenoid Position Signal

D

GRY

474

5 Volt Reference

E

RED

1676

Exhaust Gas Recirculation Vent Solenoid - Feed

Engine Coolant Temperature Sensor


Object Number: 232831 Size: CH

Connector Part Information
    • 12162194
    • 2-Way Female 150.2 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

452

Sensor Return

B

YEL

410

Coolant Temperature Sensor Signal

Engine Oil Pressure Sensor


Object Number: 516595 Size: CH

Connector Part Information
    • 12065299
    • 1-Way Female 150 (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

331

Oil Pressure Sensor Signal

B-D

--

--

Not Used

Evaporator Emission Canister Purge Valve Solenoid


Object Number: 35437 Size: CH

Connector Part Information
    • 12052643
    • 2-Way Female 150 (RED)

Pin

Wire Color

Circuit No.

Function

A

PNK

539

Fuse Output - Ignition 1 - Type 3 Fuse

B

DK GRN/WHT

428

Canister Purge Solenoid Output

Evaporator Emissions Canister Vent Valve Solenoid


Object Number: 35437 Size: CH

Connector Part Information
    • 125052643
    • 2-Way Female M/P 150 (RED)

Pin

Wire Color

Circuit No.

Function

A

PNK

539

Fuse Output - Ignition 1 - Type 3 Fuse

B

WHT

1310

Canister Vent Valve Solenoid Output

Fuel Pressure Sensor Connector


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • 3-Way Female M/P 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

470

Sensor Return

B

DK GRN

890

Fuel Tank Pressure Sensor Signal

C

GRY/BLK

474

Reference Voltage Feed - 5 Volts

Fuel Pump and Sender Connector


Object Number: 280761 Size: CH

Connector Part Information
    • 12160482
    • 4-Way Female M/P 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

1589

Fuel Level Signal to VCM

B

GRY

120

Fuel Pump Motor Feed

C

BLK

1650

Ground

D

BLK/WHT

470

Sensor Return

Heated Oxygen Sensor(HO2S) Bank #1 Sensor #1


Object Number: 258300 Size: CH

Connector Part Information
    • 15326423
    • 4-Way Female M/P 150 (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1653

Oxygen Sensor Return - Left Forward of Catalytic Converter

B

PPL/WHT

1665

Oxygen Sensor Signal - Left Forward of Catalytic Converter

C

BLK

850

Ground

D

PNK

539

Fuse Output - Ignition 1 - Type 3 Fuse

Heated Oxygen Sensor (HO2S) Bank #1 Sensor #3


Object Number: 258300 Size: CH

Connector Part Information
    • 12160482
    • 4-Way Female M/P 150 (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1669

Oxygen Sensor Return - Left Rear of Catalytic Converter

B

PPL/WHT

1668

Oxygen Sensor Signal - Left Rear of Catalytic Converter

C

BLK

850

Ground

D

PNK

539

Fuse Output - Ignition 1 - Type 3 Fuse

Heated Oxygen Sensor (HO2S) Bank #2 Sensor #1


Object Number: 258300 Size: CH

Connector Part Information
    • 12176897
    • 4-Way Female M/P 150 (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

1667

Oxygen Sensor Return - Right Forward of Catalytic Converter

B

PPL

1666

Oxygen Sensor Signal - Right Forward of Catalytic Converter

C

BLK

850

Ground

D

PNK

539

Fuse Output - Ignition 1 - Type 3 Fuse

Idle Air Control Valve Motor


Object Number: 38608 Size: CH

Connector Part Information
    • 12162189
    • 4-Way Female 150.2 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

444

Idle Air Control Valve Motor Feed - Coil B Low

B

LT GRN/WHT

1749

Idle Air Control Valve Motor Feed - Coil B High

C

LT BLU/BLK

1748

Idle Air Control Valve Motor Feed - Coil A Low

D

LT BLU/WHT

1747

Idle Air Control Valve Motor Feed - Coil A High

Ignition Coil


Object Number: 68743 Size: CH

Connector Part Information
    • 12146121
    • 3-Way Female 150 (BRN)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output - Ignition 1 - Type 3 Fuse

B

--

--

Not Used

C

WHT/BLK

1847

Ignition Coil Output - Bank B

Intake Air Temperature Sensor


Object Number: 68719 Size: CH

Connector Part Information
    • 12162198
    • 2-Way Female M/P 150.2 P2S (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

472

Manifold Air Temperature Sensor Signal

B

BLK

470

Sensor Return

Knock Sensor


Object Number: 35416 Size: CH

Connector Part Information
    • 12103023
    • 1-Way Weather Pack (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

496

Knock Sensor Signal #1

Manifold Absolute Pressure Sensor


Object Number: 68740 Size: CH

Connector Part Information
    • 12129946
    • 3-Way Female 150 M/P (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Sensor Return

B

LT GRN

432

MAP Signal

C

GRY

474

5 Volt Reference

Mass Air Flow Sensor


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • 3-Way Female M/P 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

492

Mass Air Flow Sensor Signal

B

BLK

550

Ground

C

PNK

539

Fuse Output - Ignition 1 - Type 3

Park/Neutral Position Switch (C1)


Object Number: 40412 Size: CH

Connector Part Information
    • 12191757
    • 4-Way Female M/P 150 (NAT)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

771

Transmission Position Switch Signal - Bit 1

B

GRY

773

Transmission Position Switch Signal - Bit 3

C

WHT

776

Transmission Position Switch Signal - Parity Bit

D

YEL

772

Transmission Position Switch Signal - Bit 2

Park/Neutral Position Switch (C2)


Object Number: 68780 Size: CH

Connector Part Information
    • 12129840
    • 7-Way Female M/P Mixed (GRY)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

LT GRN

275

Transmission Mounted Neutral Safety Switch Output - Park

C

PNK

139

Fuse Output - Ignition 1 - Type 3 Fuse

D

BLK/WHT

651

Fuel Gauge Sensor Ground

E

PPL

806

Fuse Output - Crank - Type 3 Fuse

F

LT GRN

24

Back-up Lamp Feed

G

YEL

1737

Transmission Mounted Neutral Safety Switch Output - Park/Neutral

Throttle Position Sensor


Object Number: 258299 Size: CH

Connector Part Information
    • 12078090
    • 3-Way Female 150 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

416

5 Volt Reference

B

BLK

452

Sensor Return

C

DK BLU

417

Throttle Position Sensor Signal

Vehicle Speed Sensor Connector (Engine)


Object Number: 232831 Size: CH

Connector Part Information
    • 
        12162194
    • 2-Way Female M/P 150.2 Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

Vehicle Speed Sensor Signal

B

LT GRN/BLK

822

Vehicle Speed Sensor Return