GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2002 🢒 Express 🢒 Engine 🢒 Engine Controls - 8.1L 🢒 Engine Controls Connector End Views
Table 1: Accelerator Pedal Position (APP) Sensor
Table 2: Camshaft Position (CMP) Sensor
Table 3: Crankshaft Position (CKP) Sensor
Table 4: Engine Coolant Temperature (ECT) Sensor
Table 5: Evaporative Emission (EVAP) Canister Purge Solenoid
Table 6: Evaporative Emission (EVAP) Canister Vent Solenoid
Table 7: Exhaust Gas Recirculation (EGR) Valve
Table 8: Fuel Injector 1
Table 9: Fuel Injector 2
Table 10: Fuel Injector 3
Table 11: Fuel Injector 4
Table 12: Fuel Injector 5
Table 13: Fuel Injector 6
Table 14: Fuel Injector 7
Table 15: Fuel Injector 8
Table 16: Fuel Injector Harness C112
Table 17: Fuel Pump And Sender
Table 18: Fuel Tank Pressure (FTP) Sensor
Table 19: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Table 20: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Table 21: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Table 22: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Table 23: Ignition Coil 1
Table 24: Ignition Coil 2
Table 25: Ignition Coil 3
Table 26: Ignition Coil 4
Table 27: Ignition Coil 5
Table 28: Ignition Coil 6
Table 29: Ignition Coil 7
Table 30: Ignition Coil 8
Table 31: Input Shaft Speed (ISS) Sensor
Table 32: Intake Air Temperature (IAT) Sensor
Table 33: Knock Sensor (KS) Bank 1
Table 34: Knock Sensor (KS) Bank 2
Table 35: Manifold Absolute Pressure (MAP) Sensor
Table 36: Mass Air Flow (MAF) Sensor
Table 37: TCC/Brake Switch
Table 38: Throttle Actuator Control (TAC) Module C1
Table 39: Throttle Actuator Control (TAC) Module C2
Table 40: Throttle Actuator Control (TAC) Motor
Table 41: Throttle Position (TP) Sensor
Table 42: Vehicle Speed Sensor (VSS)

Accelerator Pedal Position (APP) Sensor


Object Number: 666638 Size: CH

Connector Part Information
    • 12177081
    • ASM 10F M/P 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

1273

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

BRN

1271

Low Reference

K

DK GRN

1163

APP Sensor 3 Signal

Camshaft Position (CMP) Sensor


Object Number: 684840 Size: CH

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

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

Crankshaft Position (CKP) Sensor


Object Number: 516611 Size: CH

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


Object Number: 684807 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

GRY

720

Low Reference

B

YEL

410

ECT Sensor Signal

C

DK GRN

35

Coolant Temperature Indicator Control

Evaporative Emission (EVAP) Canister Purge Solenoid


Object Number: 684795 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

PNK

539

Ignition 1 Voltage

B

DK GRN/

WHT

428

EVAP Canister Purge Solenoid Control

Evaporative Emission (EVAP) Canister Vent Solenoid


Object Number: 684795 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

WHT

1310

EVAP Canister Vent Solenoid Control

B

PNK

539

Ignition 1 Voltage

Exhaust Gas Recirculation (EGR) Valve


Object Number: 594477 Size: CH

Connector Part Information
    • 15326389
    • ASM 5F M/P 150.2 P2S SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

257

EGR Solenoid Low Control

B

PPL

719

Low Reference

C

BRN

1456

EGR Valve Position Signal

D

GRY

596

5 Volt Reference

E

RED

1676

EGR Solenoid High Control

Fuel Injector 1


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/WHT

439

Ignition 1 Voltage

B

BLK

1744

Fuel Injector 1 Control

Fuel Injector 2


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Ignition 1 Voltage

B

LT GRN/BLK

1745

Fuel Injector 2 Control

Fuel Injector 3


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/WHT

439

Ignition 1 Voltage

B

PNK/BLK

1746

Fuel Injector 3 Control

Fuel Injector 4


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Ignition 1 Voltage

B

LT BLU/BLK

844

Fuel Injector 4 Control

Fuel Injector 5


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/WHT

439

Ignition 1 Voltage

B

BLK/WHT

845

Fuel Injector 5 Control

Fuel Injector 6


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Ignition 1 Voltage

B

YEL/BLK

846

Fuel Injector 6 Control

Fuel Injector 7


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK/WHT

439

Ignition 1 Voltage

B

RED/BLK

877

Fuel Injector 7 Control

Fuel Injector 8


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2 Way F Lock Tab Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Ignition 1 Voltage

B

DK BLU/WHT

878

Fuel Injector 8 Control

Fuel Injector Harness C112


Object Number: 570216 Size: CH

Connector Part Information
    • 12065425
    • 10-Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1744

Fuel Injector 1 Control

B

DK BLU/WHT

878

Fuel Injector 8 Control

C

LT BLU/BLK

844

Fuel Injector 4 Control

D

PNK/BLK

1746

Fuel Injector 3 Control

E

YEL/BLK

846

Fuel Injector 6 Control

F

BLK/WHT

845

Fuel Injector 5 Control

G

RED/BLK

877

Fuel Injector 7 Control

H

LT GRN/BLK

1745

Fuel Injector 2 Control

J

PNK

439

Ignition 1 Voltage

K

PNK

439

Ignition 1 Voltage

Fuel Pump And Sender


Object Number: 456551 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

PPL

1589

Fuel Level Sensor Signal - Primary

B

GRY

120

Fuel Pump Supply Voltage

C

BLK

150

Ground

D

BLK

470

Low Reference

Fuel Tank Pressure (FTP) Sensor


Object Number: 516611 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Low Reference

B

DK GRN

890

Fuel Tank Pressure Sensor Signal

C

GRY

474

5 Volt Reference

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1


Object Number: 628099 Size: CH

Connector Part Information
    • 12092840
    • 5M M/P 150 SLD (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal - Bank 1 Sensor 1

B

PPL/WHT

1665

HO2S High Signal - Bank 1 Sensor 1

C

--

--

Not Used

D

LT GRN

3213

HO2S Heater High Signal

E

LT GRN

3212

HO2S Heater Low Signal

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2


Object Number: 655691 Size: CH

Connector Part Information
    • 12146046
    • ASM 5F M/P 150 SLD (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal

B

PPL

1670

HO2S High Signal - Bank 2 Sensor 2

C

--

--

Not Used

D

RED/WHT

3222

HO2S Heater High

E

BLK

150

Ground

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1


Object Number: 628099 Size: CH

Connector Part Information
    • 12092840
    • 5M M/P 150 SLD (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal

B

PPL

1666

HO2S High Signal - Bank 2 Sensor 1

C

--

--

Not Used

D

LT GRN

3213

HO2S Heater High Signal

E

LT GRN

3212

HO2S Heater Low Signal

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2


Object Number: 628099 Size: CH

Connector Part Information
    • 12092840
    • ASM 5M M/P 150 SLD (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S Low Signal

B

PPL/WHT

1668

HO2S High Signal - Bank 1 Sensor 2

C

--

--

Not Used

D

PNK

539

Ignition 1 Voltage

E

BRN

3122

HO2S Heater Low Signal - Bank 1 Sensor 2

Ignition Coil 1


Object Number: 684854 Size: CH

Connector Part Information
    • 12162144
    • 4 Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

BRN

2129

Low Reference

C

PPL

2121

IC 1 Control

D

PNK

439

Ignition 1 Voltage

Ignition Coil 2


Object Number: 684854 Size: CH

Connector Part Information
    • 12162144
    • 4 Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

BRN

2130

Low Reference

C

RED

2122

IC 2 Control

D

PNK

439

Ignition 1 Voltage

Ignition Coil 3


Object Number: 684854 Size: CH

Connector Part Information
    • 12162144
    • 4 Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

BRN

2129

Low Reference

C

LT BLU

2123

IC 3 Control

D

PNK

439

Ignition 1 Voltage

Ignition Coil 4


Object Number: 684854 Size: CH

Connector Part Information
    • 12162144
    • 4 Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

BRN

2130

Low Reference

C

GRN

2124

IC 4 Control

D

PNK

439

Ignition 1 Voltage

Ignition Coil 5


Object Number: 684854 Size: CH

Connector Part Information
    • 12162144
    • 4 Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

BRN

2129

Low Reference

C

DK GRN

2125

IC 5 Control

D

PNK

439

Ignition 1 Voltage

Ignition Coil 6


Object Number: 684854 Size: CH

Connector Part Information
    • 12162144
    • 4 Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

BRN

2130

Low Reference

C

LT BLU

2126

IC 6 Control

D

PNK

439

Ignition 1 Voltage

Ignition Coil 7


Object Number: 684854 Size: CH

Connector Part Information
    • 12162144
    • 4 Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

BRN

2129

Low Reference

C

RED

2127

IC 7 Control

D

PNK

439

Ignition 1 Voltage

Ignition Coil 8


Object Number: 684854 Size: CH

Connector Part Information
    • 12162144
    • 4 Way F Metri-pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

BRN

2130

Low Reference

C

PPL

2128

IC 8 Control

D

PNK

439

Ignition 1 Voltage

Input Shaft Speed (ISS) Sensor


Object Number: 237066 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

RED/BLK

1230

AT ISS High Signal

B

DK BLU/

WHT

1231

AT ISS Low Signal

Intake Air Temperature (IAT) Sensor


Object Number: 646180 Size: CH

Connector Part Information
    • 12162198
    • ASM 2F M/P 150.2 P2S SLD (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

472

IAT Sensor Signal

B

BLK

552

Low Reference

Knock Sensor (KS) Bank 1


Object Number: 696956 Size: CH

Connector Part Information
    • 15355362
    • 1-Way Metri-pack 150 Series Sealed (NAT)

Pin

Wire Color

Circuit No.

Function

1

DK BLU

496

Knock Sensor 1 Signal

Knock Sensor (KS) Bank 2


Object Number: 696956 Size: CH

Connector Part Information
    • 15355362
    • 1-Way Metri-pack 150 Series Sealed (NAT)

Pin

Wire Color

Circuit No.

Function

1

LT BLU

1876

Knock Sensor 2 Signal

Manifold Absolute Pressure (MAP) Sensor


Object Number: 684840 Size: CH

Connector Part Information
    • 12129946
    • ASM 3F 150 SLD (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

Mass Air Flow (MAF) Sensor


Object Number: 516611 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

YEL

492

MAF Sensor Signal

B

BLK/WHT

451

Ground

C

PNK

539

Ignition 1 Voltage

TCC/Brake Switch


Object Number: 62424 Size: CH

Connector Part Information
    • 12040551
    • 6F M/P 480 (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN/

WHT

1135

A/T Shift Lock Control Solenoid Supply Voltage

B

LT GRN

275

Park Neutral Position Switch Park Signal

C

PPL

420

TCC Brake Switch Signal

D

BRN

441

Ignition 3 Voltage

E

ORN

140

Battery Positive Voltage

F

WHT

17

Stop Lamp Switch Signal

Throttle Actuator Control (TAC) Module C1


Object Number: 261930 Size: CH

Connector Part Information
    • 12191064
    • ASM 16F M/P 100 W Series (NAT)

Pin

Wire Color

Circuit No.

Function

1

DK GRN

485

TP Sensor 1 Signal

2

GRY

416

5 Volt Reference

3

BLK

452

Low Reference

4

DK BLU

84

Cruise Control Set/Coast Switch Signal

5

GRY/BLK

87

Cruise Control Resume/Accel Switch Signal

6

WHT

17

Stop Lamp Switch Signal

7

PNK

1339

Ignition 1 Voltage

8

BRN

582

TAC Motor Control - 2

9

LT BLU/BLK

1688

5 Volt Reference

10

BLK/WHT

1704

Low Reference

11

PPL

486

TP Sensor 2 Signal

12

ORN/BLK

1061

UART Serial Data - Secondary

13

DK BLU/

WHT

774

UART Serial Data - Tertiary

14

GRY

397

Cruise Control On Switch Signal

15

TAN/WHT

551

Ground

16

YEL

581

TAC Motor Control - 1

Throttle Actuator Control (TAC) Module C2


Object Number: 666638 Size: CH

Connector Part Information
    • 12177081
    • ASM 10F 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

GRY

1273

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

BRN

1271

Low Reference

K

DK GRN

1163

APP Sensor 3 Signal

Throttle Actuator Control (TAC) Motor


Object Number: 684799 Size: CH

Connector Part Information
    • 12077900
    • 2-Way F Metri-pack 280 Series (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


Object Number: 666641 Size: CH

Connector Part Information
    • 12186696
    • ASM 6F M/P 150 P2S SLD (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)


Object Number: 237066 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High Signal

B

LT GRN/

BLK

822

VSS Low Signal