GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Chevrolet C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Controls - 8.1L 🢒 Engine Controls Connector End Views
Table 1: Accelerator Pedal Connector
Table 2: Camshaft Position (CMP) Sensor Connector
Table 3: Clutch Pedal Position (CPP) Switch Connector
Table 4: Crankshaft Position (CKP) Sensor Connector
Table 5: Engine Coolant Temperature (ECT) Sensor Connector
Table 6: Engine Oil Pressure (EOP) Sensor Connector
Table 7: Evaporative Emission (EVAP) Canister Purge Solenoid Connector
Table 8: Exhaust Gas Recirculation (EGR) Valve Connector
Table 9: Fuel Injectors Connector
Table 10: Fuel Pump and Sender Assembly Connector
Table 11: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Connector
Table 12: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 Connector
Table 13: High Idle Switch Connector
Table 14: Ignition Coils Connector
Table 15: Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor Connector
Table 16: Manifold Absolute Pressure (MAP) Sensor Connector
Table 17: Stoplamp Switch Interface Module Connector
Table 18: Throttle Actuator Control (TAC) Motor Connector
Table 19: Throttle Position (TP) Sensor Connector
Table 20: Vehicle Speed Sensor (VSS) Connector (MF1)
Table 21: Vehicle Speed Sensor (VSS) Connector (MX4/MTW)
Table 22: Vehicle Speed Sensor (VSS) Connector (Manual Transmission)

Accelerator Pedal Connector


Object Number: 570216 Size: CH

Connector Part Information
    • 12065425
    • 10 Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

1271

Low Reference

B

PPL

1272

Low Reference

C

LT BLU

1162

APP Sensor 2 Signal

D

TAN

1274

5 Volt Reference

E

YEL/BLK

1275

5 Volt Reference

F

DK BLU

1161

APP Sensor 1 Signal

G

WHT/BLK

1164

5 Volt Reference

H

--

--

Not Used

J

GRY

1273

Low Reference

K

DK GRN

1163

APP Sensor 3 Signal

Camshaft Position (CMP) Sensor Connector


Object Number: 684840 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

RED

631

12 Volt Reference

B

PNK/BLK

632

Low Reference

C

BRN/WHT

633

CMP Sensor Signal

Clutch Pedal Position (CPP) Switch Connector


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2 Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN/WHT

379

CPP Switch Signal

B

PNK

39

Ignition 1 Voltage

Crankshaft Position (CKP) Sensor Connector


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

LT GRN

1867

12 Volt Reference

B

YEL/BLK

1868

Low Reference

C

DK BLU /WHT

1869

CKP Sensor Signal

Engine Coolant Temperature (ECT) Sensor Connector


Object Number: 684807 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

GRY

720

Low Reference

B

YEL

410

ECT Sensor Signal

C

DK GRN

135

Coolant Temperature Sensor Signal

Engine Oil Pressure (EOP) Sensor Connector


Object Number: 258299 Size: CH

Connector Part Information
    • 12065287
    • 3 Way F Metri-Pack 150 Series, Sealed, Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

407

Low Reference

B

GRY

705

5 Volt Reference

C

TAN/WHT

332

Oil Pressure Sensor Signal

Evaporative Emission (EVAP) Canister Purge Solenoid Connector


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

DK GRN /WHT

428

EVAP Canister Purge Solenoid Control

Exhaust Gas Recirculation (EGR) Valve Connector


Object Number: 684861 Size: CH

Connector Part Information
    • 12186057
    • 5 Way F Metri-Pack 150.2 Series, Sealed, Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

435

EGR Solenoid Control

B

PPL

719

Low Reference

C

BRN

1456

EGR Valve Position Signal

D

GRY

596

5 Volt Reference

E

RED

1676

EGR Valve Supply Voltage

Fuel Injectors Connector


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Micro-Pack Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

39

Ignition 1 Voltage (Bank 1 Fuel Injectors)

A

PNK

139

Ignition 1 Voltage (Bank 2 Fuel Injectors)

B

BLK

1744

Fuel Injector 1 Control (Fuel Injector 1)

B

LT GRN /BLK

1745

Fuel Injector 2 Control (Fuel Injector 2)

B

PNK/BLK

1746

Fuel Injector 3 Control (Fuel Injector 3)

B

LT BLU /BLK

844

Fuel Injector 4 Control (Fuel Injector 4)

B

BLK/WHT

845

Fuel Injector 5 Control (Fuel Injector 5)

B

YEL/BLK

846

Fuel Injector 6 Control (Fuel Injector 6)

B

RED/BLK

877

Fuel Injector 7 Control (Fuel Injector 7)

B

DK BLU /WHT

878

Fuel Injector 8 Control (Fuel Injector 8)

Fuel Pump and Sender Assembly Connector


Object Number: 38608 Size: CH

Connector Part Information
    • 12162188
    • 4 Way F, Metri-Pack 150 Series, Sealed, (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

--

--

Not Used

C

GRY

120

Fuel Pump Motor Feed

C

PPL

30

Fuel Level Sensor Signal

D

DK BLU

1936

Fuel Gauge Sensor Signal-Left (Left Fuel Tank)

D

LT BLU

1937

Fuel Gauge Sensor Signal-Right (Right Fuel Tank)

D

PPL

30

Fuel Level Sensor Signal (Single Fuel Tank)

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 Connector


Object Number: 628099 Size: CH

Connector Part Information
    • 12092840
    • 5 Way M Metri-Pack 150 Series, Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal

B

PPL/WHT

1665

HO2S High Signal

C

--

--

Blocked

D

LT GRN /WHT

3213

HO2S Heater Power

E

LT GRN

3212

HO2S Heater Ground

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 Connector


Object Number: 655691 Size: CH

Connector Part Information
    • 12146046
    • 5 Way F Metri-Pack 150 Series, Sealed (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal

B

PPL

1666

HO2S High Signal

C

--

--

Blocked

D

LT GRN /WHT

3213

HO2S Heater Power

E

LT GRN

3212

HO2S Heater Ground

High Idle Switch Connector


Object Number: 95782 Size: CH

Connector Part Information
    • 12052833
    • 2 Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

534

High Idle Switch Output

B

BLK/WHT

451

Ground

Ignition Coils Connector


Object Number: 684854 Size: CH

Connector Part Information
    • 12162144
    • 4 Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

151

Ground

B

BRN

2129

Low Reference

C

PPL

2121

IC 1 Control (Ignition Coil - 1 and 8)

C

LT BLU

2123

IC 3 Control (Ignition Coil - 3 and 6)

C

DK GRN

2125

IC 5 Control (Ignition Coil - 5 and 4)

C

RED

2127

IC 7 Control (Ignition Coil - 2 and 7)

D

PNK

39

Ignition 1 Voltage

Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor Connector


Object Number: 743129 Size: CH

Connector Part Information
    • 12162825
    • 5 Way F Metri-Pack 150.2 Series, Pull To Seat, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

552

Low Reference

B

TAN

472

IAT Sensor Signal

C

BLK/WHT

451

Ground

D

PNK

439

Ignition 1 Voltage

E

YEL

472

MAF Sensor Signal

Manifold Absolute Pressure (MAP) Sensor Connector


Object Number: 684840 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

469

Low Reference

B

LT GRN

432

MAP Sensor Signal

C

GRY

597

5 Volt Reference

Stoplamp Switch Interface Module Connector


Object Number: 403569 Size: CH

Connector Part Information
    • 12004706
    • 6 Way Edgeboard Series, Standard (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

39

Ignition 1 Voltage

B

PPL

420

TCC Brake Switch Signal

C

TAN

848

Brake Switch Signal

D

RED

20

Stop Lamp Supply Voltage

E

BLK/WHT

451

Ground

F

LT GRN

526

Stop Lamp Switch Signal

Throttle Actuator Control (TAC) Motor Connector


Object Number: 684799 Size: CH

Connector Part Information
    • 12077900
    • 2 Way F Metri-Pack 280 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

582

TAC Motor Control-2

B

YEL

581

TAC Motor Control-1

Throttle Position (TP) Sensor Connector


Object Number: 697032 Size: CH

Connector Part Information
    • 12162260
    • 6 Way F Metri-Pack 150.2 Series, Sealed, Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

416

5 Volt Reference

B

BLK

452

Low Reference

C

DK GRN

485

TP Sensor 1 Signal

D

LT BLU /BLK

1688

5 Volt Reference

E

BLK/WHT

1704

Low Reference

F

PPL

486

TP Sensor 2 Signal

Vehicle Speed Sensor (VSS) Connector (MF1)


Object Number: 537107 Size: CH

Connector Part Information
    • 12052644
    • 2 Way F Metri-Pack 150 Series, Sealed, Pull To Seat (GRY)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High Signal

B

LT GRN /BLK

822

VSS Low Signal

Vehicle Speed Sensor (VSS) Connector (MX4/MTW)


Object Number: 655692 Size: CH

Connector Part Information
    • 12162193
    • 2 Way F Metri-Pack 150 Series, Sealed, Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High Signal

B

LT GRN /BLK

822

VSS Low Signal

Vehicle Speed Sensor (VSS) Connector (Manual Transmission)


Object Number: 237066 Size: CH

Connector Part Information
    • 12162194
    • 2 Way F Metri-Pack 150 Series, Sealed, Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High Signal

B

LT GRN /BLK

822

VSS Low Signal