GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 Blazer - 4WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Engine Controls Connector End Views
Table 1: Camshaft Position (CMP) Sensor Connector
Table 2: Central Sequential Fuel Injection (CSFI) Connector
Table 3: Crankshaft Position (CKP) Sensor Connector
Table 4: Electronic Ignition Control Module (EICM) Connector
Table 5: Engine Coolant Temperature (ECT) Sensor Connector
Table 6: Evaporative (EVAP) Emission Canister Purge Solenoid Valve
Table 7: Evaporative (EVAP) Emission Canister Control Valve Connector
Table 8: Exhaust Gas Recirculation (EGR) Valve
Table 9: Fuel Tank Pressure Sensor Connector
Table 10: Fuel Pump and Sender Connector
Table 11: Heated Oxygen Sensor (H2OS) Connector, Bank 1, Sensor 1
Table 12: Heated Oxygen Sensor (H2OS) Connector, Bank 1 Sensor 3
Table 13: Heated Oxygen Sensor (H2OS) Connector, Bank 2 Sensor 1
Table 14: Idle Air Control (IAC) Valve Connector
Table 15: Ignition Coil Connector
Table 16: Intake Air Temperature (IAT) Sensor Connector
Table 17: Knock Sensor (KS) Connector
Table 18: Manifold Absolute Pressure (MAP) Sensor Connector
Table 19: Mass Air Flow (MAF) Sensor Connector
Table 20: Secondary Air Injection Reactor (AIR) Pump Connector C1 (w/ California Emissions)
Table 21: Secondary Air Injection Reactor (AIR) Pump Connector C2 (w/ California Emissions)
Table 22: Throttle Position (TP) Sensor Connector
Table 23: Vehicle Speed Sensor (VSS)

Camshaft Position (CMP) Sensor Connector


Object Number: 491634 Size: CH

Connector Part Information
    • 12110293
    • 3-Way F Metri-Pack 150 Series, Sealed (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

239

Fuse Output - Ignition 1

Central Sequential Fuel Injection (CSFI) Connector


Object Number: 39782 Size: CH

Connector Part Information
    • 12177083
    • 12-Way F Micro-Pack 100 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

845

Fuel Injector 5 Output

B

PNK

439

Fuse Output - Ignition 1

C

PNK/BLK

1746

Fuel Injector 3 Output

D

PNK

439

Fuse Output - Ignition 1

E

PNK

439

Fuse Output - Ignition 1

F

BLK

1744

Fuel Injector 1 Output

G

LT GRN/BLK

1745

Fuel Injector 2 Output

H

PNK

439

Fuse Output - Ignition 1

J

PNK

439

Fuse Output - Ignition 1

K

LT BLU/BLK

844

Fuel Injector 4 Output

L

PNK

439

Fuse Output - Ignition 1

M

YEL/BLK

846

Fuel Injector 6 Output

Crankshaft Position (CKP) Sensor Connector


Object Number: 62453 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output - Ignition 1

B

PPL

574

Crankshaft Position Sensor Return

C

YEL

573

Crankshaft Position Sensor Signal

Electronic Ignition Control Module (EICM) Connector


Object Number: 38608 Size: CH

Connector Part Information
    • 12162189
    • 4-Way F Metri-Pack 150.2 Series, Pull-to-Seat Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output - Ignition 1

B

WHT

423

Electronic Spark Timing Control Signal

C

BLK/WHT

451

Ground

D

WHT/BLK

1847

Ignition Coil Driver

Engine Coolant Temperature (ECT) Sensor Connector


Object Number: 232831 Size: CH

Connector Part Information
    • 12162194
    • 2-Way F Metri-Pack 150.2 Series, Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

452

ECT Sensor Return

B

YEL

410

ECT Sensor Signal

Evaporative (EVAP) Emission Canister Purge Solenoid Valve


Object Number: 35437 Size: CH

Connector Part Information

12052643

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

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Fuse Output-Ignition 1

B

DK GRN/WHT

428

Canister Purge Solenoid Valve Output

Evaporative (EVAP) Emission Canister Control Valve Connector


Object Number: 35437 Size: CH

Connector Part Information
    • 12052643
    • 2-Way F Metri-Pack 150 Series, Sealed (RED)

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Fuse Output - Ignition 1

B

WHT

1310

Canister Control Valve Solenoid Output

Exhaust Gas Recirculation (EGR) Valve


Object Number: 68773 Size: CH

Connector Part Information
    • 12186056
    • 5-Way F Metri-Pack 150.2 Series, Sealed, P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

257

EGR Solenoid Output

B

BLK

470

EGR Sensor Return

C

BRN

1456

EGR Solenoid Position Signal

D

GRY

474

Reference Voltage Feed - 5 Volt Reference

E

RED

1676

EGR Solenoid Feed

Fuel Tank Pressure Sensor Connector


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • 3-Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

470

Sensor Return

B

DK GRN

890

Fuel Tank Pressure Sensor Signal

C

GRY

474

Reference Voltage Feed - 5 Volt

Fuel Pump and Sender Connector


Object Number: 258300 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

PPL

1589

Fuel Level Sensor Signal

B

GRY

120

Fuel Pump Motor Feed

C

BLK

1650

Ground (Utility)

C

BLK

1750

Ground (Pickup)

D

BLK/WHT

470

Fuel Level Sensor Return

Heated Oxygen Sensor (H2OS) Connector, Bank 1, Sensor 1


Object Number: 320619 Size: CH

Connector Part Information
    • 12162144
    • 4-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1653

Oxygen Sensor Low - Left - Forward of Catalytic Converter

B

PPL/WHT

1665

Oxygen Sensor High - Left - Forward of Catalytic Converter

C

BLK

450

Ground

D

PNK

539

Fuse-Output-Ignition 1

Heated Oxygen Sensor (H2OS) Connector, Bank 1 Sensor 3


Object Number: 320619 Size: CH

Connector Part Information
    • 12162144
    • 4-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1669

Oxygen Sensor Low-Rear of Catalytic Converter

B

PPL/WHT

1668

Oxygen Sensor High-Rear of Catalytic Converter

C

BLK

350

Ground

D

PNK

539

Fuse-Output-Ignition 1

Heated Oxygen Sensor (H2OS) Connector, Bank 2 Sensor 1


Object Number: 320619 Size: CH

Connector Part Information
    • 12162144
    • 4-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

1667

Oxygen Sensor Low-Forward of Catalytic Converter

B

PPL

1666

Oxygen Sensor High-Forward of Catalytic Converter

C

BLK

350

Ground

D

PNK

539

Fuse-Output-Ignition 1

Idle Air Control (IAC) Valve Connector


Object Number: 38608 Size: CH

Connector Part Information
    • 12162190
    • 4-Way M Metri-Pack 150.2 Series, Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

444

Idle Air Control Valve - Coil B Low

B

LT GRN/WHT

1749

Idle Air Control Valve - Coil B High

C

LT BLU/BLK

1748

Idle Air Control Valve - Coil A Low

D

LT BLU/WHT

1747

Idle Air Control Valve - Coil A High

Ignition Coil Connector


Object Number: 68743 Size: CH

Connector Part Information
    • 12146121
    • 3-Way F Metri-Pack 150 Series, Sealed (BRN)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output - Ignition 1

B

--

--

Not Used

C

WHT/BLK

1847

Ignition Coil Output Bank 1

Intake Air Temperature (IAT) Sensor Connector


Object Number: 68719 Size: CH

Connector Part Information
    • 12162198
    • 2-Way F Metri-Pack 150.2 Series, Sealed, Pull-to-Seat (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

472

IAT Sensor Signal

B

BLK

470

IAT Sensor Return

Knock Sensor (KS) Connector


Object Number: 35416 Size: CH

Connector Part Information
    • 12146549
    • 1-Way M Weather Pack (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

496

Knock Sensor Signal #1

Manifold Absolute Pressure (MAP) Sensor Connector


Object Number: 68740 Size: CH

Connector Part Information
    • 12129946
    • 3-Way F Metri-Pack 150 Series Sealed (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

MAP Sensor Return

B

LT GRN

432

MAP Sensor Signal

C

GRY

474

Reference Voltage Feed-5 Volt Reference

Mass Air Flow (MAF) Sensor Connector


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • 3-Way F Metri-Pack Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

492

Mass Air Flow Sensor Signal

B

BLK/WHT

451

Ground

C

PNK

239

Fuse Output - Ignition 1

Secondary Air Injection Reactor (AIR) Pump Connector C1 (w/ California Emissions)


Object Number: 35437 Size: CH

Connector Part Information
    • 12052641
    • 2-Way M Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/BLK

415

Air Injection Reaction Solenoid Feed

B

BLK

1550

Ground

Secondary Air Injection Reactor (AIR) Pump Connector C2 (w/ California Emissions)


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 Injection Reaction Pump Motor Feed

B

BLK

1550

Ground

Throttle Position (TP) Sensor Connector


Object Number: 258299 Size: CH

Connector Part Information
    • 12110192
    • 3-Way F Micro-Pack 150 Series, Sealed, Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

416

Reference Voltage Feed - 5 Volt Reference

B

BLK

452

Sensor Return

C

DK BLU

417

Throttle Position Sensor Signal

Vehicle Speed Sensor (VSS)


Object Number: 232831 Size: CH

Connector Part Information

12162194

2-Way F Metri-Pack 150.2 Series Sealed P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

Vehicle Speed Sensor Signal

B

LT GRN/BLK

822

Vehicle Speed Sensor Return