GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Blazer - 2WD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 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: Engine Coolant Temperature (ECT) Sensor Connector
Table 5: Engine Oil Pressure Gauge Sensor Connector
Table 6: Evaporative (EVAP) Emission Canister Purge Valve
Table 7: Evaporative (EVAP) Emission Canister Vent Valve Connector
Table 8: Fuel Tank Pressure Sensor Connector
Table 9: Fuel Pump and Sender Connector
Table 10: Generator 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: Ignition Control Module (ICM) Connector
Table 17: Intake Air Temperature (IAT) Sensor Connector
Table 18: Knock Sensor (KS) Connector
Table 19: Manifold Absolute Pressure (MAP) Sensor Connector
Table 20: Mass Air Flow (MAF) Sensor Connector
Table 21: Throttle Position (TP) Sensor Connector
Table 22: Vehicle Speed Sensor (VSS)

Camshaft Position (CMP) Sensor Connector


Object Number: 283889 Size: CF

Connector Part Information
    • 12110293
    • 3-Way M 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

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

Sensor Return

B

YEL

410

Coolant Temperature Sensor Signal

Engine Oil Pressure Gauge Sensor Connector


Object Number: 236480 Size: CH

Connector Part Information
    • 12065299
    • 1-Way F Metri-Pack 150 Series, Sealed (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

331

Oil Pressure Sensor Signal

Evaporative (EVAP) Emission Canister Purge 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 Output

Evaporative (EVAP) Emission Canister Vent 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 Vent Valve Solenoid Output

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: 280761 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

PPL

1589

Fuel Gauge Sensor Signal

B

GRY

120

Fuel Pump Motor Feed

C

BLK

1650

Ground

D

BLK/WHT

470

Sensor Return

Generator Connector


Object Number: 306263 Size: CH

Connector Part Information
    • 12186566
    • 1-Way F Metri-Pack 150 Series, Sealed (NAT)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

RED

225

Alternator Output - Regulator Reference Voltage

C-D

--

--

Not Used

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 Return - Left - Forward of Catalytic Converter

B

PPL/WHT

1665

Oxygen Sensor Signal - 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 Return-Left-Rear of Catalytic Converter

B

PPL/WHT

1668

Oxygen Sensor Signal-Left-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 Return-Right-Forward of Catalytic Converter

B

PPL

1666

Oxygen Sensor Signal-Right-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 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 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 A

Ignition Control Module (ICM) 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

Engine Control Module Ground

D

WHT/BLK

1847

Ignition Coil Output - Bank A

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

Manifold Absolute Temperature Sensor Signal

B

BLK

470

Sensor Return

Knock Sensor (KS) Connector


Object Number: 35416 Size: CH

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

Pin

Wire Color

Circuit No.

Function

1

DK BLU

496

Knock Sensor Signal #1

Manifold Absolute Pressure (MAP) Sensor Connector


Object Number: 68740 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Sensor Return

B

LT GRN

432

Manifold Absolute Pressure 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

Engine Control Module Ground

C

PNK

239

Fuse Output - Ignition 1

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