GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Blazer - 4WD - RHD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E 🢒 Engine Controls Connector End Views

Camshaft Position (CMP) Sensor


Object Number: 68730 Size: CH

Connector Part Information
    • 12110293
    • ASM 3F M/P 150 SLD (BLACK)

Pin

Wire Color

Circuit No.

Function

A

PNK/BLK

632

CMP Sensor Return

B

BRN/WHT

633

CMP Sensor Signal

C

PNK

239

Fuse Output - Ignition 1 - Type III Fuse

Crankshaft Position (CKP) Sensor


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • ASM 3F M/P 150 (BLACK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output - Ignition 1 - Type III Fuse

B

PPL

574

CKP Sensor Return

C

YEL

573

CKP Sensor Signal

Engine Oil Pressure Gauge Sensor


Object Number: 236480 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

331

Oil Pressure Sensor Signal

Exhaust Gas Recirculation (EGR) Valve


Object Number: 68773 Size: CH

Connector Part Information
    • 12186056
    • ASM 5F M/P 150.2 P2S (BLACK)

Pin

Wire Color

Circuit No.

Function

A

WHT

257

EGR Solenoid Output

B

BLK

470

Sensor Return

C

BRN

1456

EGR Solenoid Position Signal

D

GRY

474

5 Volt Reference

E

RED

1676

EGR Solenoid Output Feed

Engine Coolant Temperature (ECT) Sensor


Object Number: 62471 Size: CH

Connector Part Information
    • 12162194
    • ASM 2F M/P 150.2 P2S (BLACK)

Pin

Wire Color

Circuit No.

Function

A

BLK

452

Sensor Return

B

YEL

410

Coolant Temperature Sensor Signal

Evaporative Emission Canister Purge Valve


Object Number: 35437 Size: CH

Connector Part Information
    • 12052643
    • ASM 2F M/P 150 (RED)

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Sensor Return

B

DK GRN/WHT

428

Caniste Purge Solenoid Control

Evaporative Emission Canister Vent Valve


Object Number: 35437 Size: CH

Connector Part Information
    • 12052643
    • ASM 2F M/P 150 (BLACK)

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Fuse Output - Ignition 1 - Type III Fuse

B

WHT

1310

Canister Vent Valve Solenoid Control

Fuel Injectors


Object Number: 68789 Size: CH

Connector Part Information
    • 12177083
    • 12F MIC/P 100 SLD (BLACK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

845

Fuel Injector #5 Control

B

PNK

439

Ignition Fused Feed

C

PNK/BLK

1746

Fuel Injector #3 Control

D

PNK

439

Ignition Fused Feed

E

PNK

439

Ignition Fused Feed

F

BLK

1744

Fuel Injector #1 Control

G

LT GRN/BLK

1745

Fuel Injector #2 Control

H

PNK

439

Ignition Fused Feed

J

PNK

439

Ignition Fused Feed

K

LT BLU/BLK

844

Fuel Injector #4 Control

L

PNK

439

Ignition Fused Feed

M

YEL/BLK

846

Fuel Injector #6 Control

Fuel Pump and Sender


Object Number: 68760 Size: CH

Connector Part Information
    • 12160482
    • ASM 4F M/P 150 SLD (BLACK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1589

Fuel Level Signal To VCM

B

GRY

120

Fuel Pump Motor Feed

C

BLK

1650

Ground

D

BLK

470

Sensor Return

Fuel Tank Pressure Sensor


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • ASM 3F M/P 150 (BLACK)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Sensor Ground

B

DK GRN

890

Sensor Signal

C

GRY

474

5 Volt Reference

Heated Oxygen Sensor (HO2S) LH/RH


Object Number: 68763 Size: CH

Connector Part Information
    • 12162144
    • 4M M/P 150 (BLACK)

Pin

Wire Color

Circuit No.

Function

A

TAN

1667

HO2S Return (Pre-converter)

B

PPL

1666

HO2S Signal (Pre-converter)

C

BLK

350

Ground

D

PNK

539

Fuse Output - Ignition 1 - Type III Fuse

Idle Air Control (IAC) Valve


Object Number: 38608 Size: CH

Connector Part Information
    • 12162190
    • ASM 4F M/P 150.2 P2S (BLACK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

444

IAC Valve Motor Feed (Coil B Low)

B

LT GRN/WHT

1749

IAC Valve Motor Feed (Coil B High)

C

LT BLU/BLK

1748

IAC Valve Motor Feed (Coil A Low)

D

LT BLU/WHT

1747

IAC Valve Motor Feed (Coil A High)

Ignition Coil


Object Number: 68743 Size: CH

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


Object Number: 38608 Size: CH

Connector Part Information
    • 12162189
    • ASM 4F M/P 150.2 P2S (BLACK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Fuse Output - Ignition 1 - Type III Fuse

B

WHT

423

Electronic Spark Timing Control Signal

C

BLK/WHT

451

Ground

D

WHT/BLK

1847

Ignition Coil Output (Bank B)

Intake Air Temperature (IAT) Sensor


Object Number: 68719 Size: CH

Connector Part Information
    • 12162198
    • ASM 2F M/P 150.2 P2S (MEDIUM GRAY)

Pin

Wire Color

Circuit No.

Function

A

TAN

472

IAT Sensor Signal

B

BLK

470

IAT Sensor Return

Manifold Absolute Presssure (MAP) Sensor


Object Number: 68740 Size: CH

Connector Part Information
    • 12129946
    • ASM 3F M/P 150 (GRAY)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

MAP Sensor Return

B

LT GRN

432

MAP Sensor Signal

C

GRY

474

5 Volt Reference

Mass Air Flow (MAF) Sensor


Object Number: 62453 Size: CH

Connector Part Information
    • 12059595
    • ASM 3F M/P 150 (BLACK)

Pin

Wire Color

Circuit No.

Function

A

YEL

492

MAF Sensor Signal

B

BLK/WHT

451

VCM Ground

C

PNK

239

Fuse Output - Ignition 1 - Type III Fuse

Throttle Position Sensor (TPS)


Object Number: 62485 Size: CH

Connector Part Information
    • 12110192
    • ASM 3F M/P 150 P2S (BLACK)

Pin

Wire Color

Circuit No.

Function

A

GRY

416

5 Volt Reference

B

BLK

452

Sensor Return

C

DK BLU

417

TP Sensor Signal