GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Express - AWD 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Engine Controls Connector End Views
Table 1: Camshaft Position (CMP) Sensor
Table 2: Crankshaft Position (CKP) Sensor
Table 3: Engine Coolant Temperature (ECT) Sensor (Early Production)
Table 4: Engine Coolant Temperature (ECT) Sensor (Late Production)
Table 5: Evaporative Emission (EVAP) Canister Purge Solenoid
Table 6: Evaporative Emission (EVAP) Canister Vent Solenoid
Table 7: Exhaust Gas Recirculation (EGR) Valve (6.0L)
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 Pump and Sender Assembly - (NE7)
Table 17: Fuel Pump and Sender Assembly - (w/o NE7)
Table 18: Fuel Tank Pressure (FTP) Sensor
Table 19: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Table 20: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Table 21: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Table 22: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Table 23: Idle Air Control (IAC) Valve
Table 24: Ignition Coil/Module 1
Table 25: Ignition Coil/Module 2
Table 26: Ignition Coil/Module 3
Table 27: Ignition Coil/Module 4
Table 28: Ignition Coil/Module 5
Table 29: Ignition Coil/Module 6
Table 30: Ignition Coil/Module 7
Table 31: Ignition Coil/Module 8
Table 32: Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor
Table 33: Manifold Absolute Pressure (MAP) Sensor
Table 34: Throttle Position (TP) Sensor

Camshaft Position (CMP) Sensor


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

BRN/WHT

633

CMP Sensor Signal

B

PNK/BLK

632

Low Reference

C

ORN

631

12 Volt Reference

Crankshaft Position (CKP) Sensor


Object Number: 366117 Size: CH

Connector Part Information
    • 15324165
    • 3-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

YEL

573

CKP Sensor 1 Signal

B

PPL

574

Low Reference

C

LT GRN

1867

12 Volt Reference

Engine Coolant Temperature (ECT) Sensor (Early Production)


Object Number: 666646 Size: CH

Connector Part Information
    • 15336024
    • 2-Way F GT 150 Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

1

YEL

410

ECT Sensor Signal

2

TAN

2761

Low Reference

Engine Coolant Temperature (ECT) Sensor (Late Production)


Object Number: 900247 Size: CH

Connector Part Information
    • 15359366
    • 2-Way F GT 150 Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

410

ECT Sensor Signal

B

TAN

2761

Low Reference

Evaporative Emission (EVAP) Canister Purge Solenoid


Object Number: 684829 Size: CH

Connector Part Information
    • 12124037
    • 2-Way F Metri-Pack 150 Series- Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

139

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

Pin

Wire Color

Circuit No.

Function

A

RED/WHT

140

Battery Positive Voltage

B

WHT

1310

EVAP Canister Vent Solenoid Control

Exhaust Gas Recirculation (EGR) Valve (6.0L)


Object Number: 684863 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

WHT

257

EGR Solenoid Control

B

PPL

719

Low Reference

C

BRN

1456

EGR Valve Position Signal

D

GRY

596

5 Volt Reference

E

ORN

1676

EGR Solenoid High Control

Fuel Injector 1


Object Number: 833727 Size: CH

Connector Part Information
    • 15326181 (Early Production)
    • 15411634 (Late Production)
    • 2-Way F Micro-Pack 064 Series Sealed (BLK) Early Production or (MD GRY) Late Production

Pin

Wire Color

Circuit No.

Function

A

PNK

139

Ignition 1 Voltage

B

TAN

1744

Fuel Injector 1 Control

Fuel Injector 2


Object Number: 833727 Size: CH

Connector Part Information
    • 15326181 (Early Production)
    • 15411634 (Late Production)
    • 2-Way F Micro-Pack 064 Series Sealed (BLK) Early Production or (MD GRY) Late Production

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Ignition 1 Voltage

B

LT GRN/BLK

1745

Fuel Injector 2 Control

Fuel Injector 3


Object Number: 833727 Size: CH

Connector Part Information
    • 15326181 (Early Production)
    • 15411634 (Late Production)
    • 2-Way F Micro-Pack 064 Series Sealed (BLK) Early Production or (MD GRY) Late Production

Pin

Wire Color

Circuit No.

Function

A

PNK

139

Ignition 1 Voltage

B

PNK/BLK

1746

Fuel Injector 3 Control

Fuel Injector 4


Object Number: 833727 Size: CH

Connector Part Information
    • 15326181 (Early Production)
    • 15411634 (Late Production)
    • 2-Way F Micro-Pack 064 Series Sealed (BLK) Early Production or (MD GRY) Late Production

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Ignition 1 Voltage

B

LT BLU/BLK

844

Fuel Injector 4 Control

Fuel Injector 5


Object Number: 833727 Size: CH

Connector Part Information
    • 15326181 (Early Production)
    • 15411634 (Late Production)
    • 2-Way F Micro-Pack 064 Series Sealed (BLK) Early Production or (MD GRY) Late Production

Pin

Wire Color

Circuit No.

Function

A

PNK

139

Ignition 1 Voltage

B

TAN/WHT

845

Fuel Injector 5 Control

Fuel Injector 6


Object Number: 833727 Size: CH

Connector Part Information
    • 15326181 (Early Production)
    • 15411634 (Late Production)
    • 2-Way F Micro-Pack 064 Series Sealed (BLK) Early Production or (MD GRY) Late Production

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Ignition 1 Voltage

B

YEL/BLK

846

Fuel Injector 6 Control

Fuel Injector 7


Object Number: 833727 Size: CH

Connector Part Information
    • 15326181 (Early Production)
    • 15411634 (Late Production)
    • 2-Way F Micro-Pack 064 Series Sealed (BLK) Early Production or (MD GRY) Late Production

Pin

Wire Color

Circuit No.

Function

A

PNK

139

Ignition 1 Voltage

B

ORN/BLK

877

Fuel Injector 7 Control

Fuel Injector 8


Object Number: 833727 Size: CH

Connector Part Information
    • 15326181 (Early Production)
    • 15411634 (Late Production)
    • 2-Way F Micro-Pack 064 Series Sealed (BLK) Early Production or (MD GRY) Late Production

Pin

Wire Color

Circuit No.

Function

A

PNK

239

Ignition 1 Voltage

B

DK BLU/WHT

878

Fuel Injector 8 Control

Fuel Pump and Sender Assembly - (NE7)


Object Number: 518981 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

PPL

1589

Fuel Level Sensor Signal

B

GRY

120

Fuel Pump Supply Voltage

C

BLK

150

Ground

D

TAN

2759

Low Reference

Fuel Pump and Sender Assembly - (w/o NE7)


Object Number: 684908 Size: CH

Connector Part Information
    • 15326631
    • 4-Way F GT 280 Sealed 5.8 (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

PPL

1589

Fuel Level Sensor Signal

C

TAN

2759

Low Reference

D

GRY

120

Fuel Pump Supply Voltage

Fuel Tank Pressure (FTP) Sensor


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

TAN

2759

Low Reference

B

DK GRN

890

Fuel Tank Pressure Sensor Signal

C

GRY

2709

5 Volt Reference

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1


Object Number: 806613 Size: CH

Connector Part Information
    • 15326423
    • 4-Way M Metri-Pack 150 Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

1664

HO2S Low Signal - Bank 1 Sensor 1

B

PPL/WHT

1665

HO2S High Signal - Bank 1 Sensor 1

C

LT BLU

5038

HO2S Heater Low Control - Bank 1 Sensor 1

D

PNK

539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2


Object Number: 806613 Size: CH

Connector Part Information
    • 15326423
    • 12160825 (Late Production 4.8L/6.0L)
    • 4-Way M Metri-Pack 150 Sealed (GRY) or (BLK) Late Production 4.8L/6.0L

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1669

HO2S Low Signal - Bank 1 Sensor 2

B

PPL/WHT

1668

HO2S High Signal - Bank 1 Sensor 2

C

PPL

5035

HO2S Heater Low Control - Bank 1 Sensor 2

D

PNK

1539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1


Object Number: 806613 Size: CH

Connector Part Information
    • 15326423 (Early Production)
    • 12160825 (Late Production)
    • 4-Way M Metri-Pack 150 Sealed (GRY) Early Production or (BLK) Late Production

Pin

Wire Color

Circuit No.

Function

A

TAN

1667

HO2S Low Signal - Bank 2 Sensor 1

B

PPL

1666

HO2S High Signal - Bank 2 Sensor 1

C

PPL/WHT

5037

HO2S Heater Low Control - Bank 2 Sensor 1

D

PNK

539

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2


Object Number: 806613 Size: CH

Connector Part Information
    • 15326423
    • 12160825 (Late Production 5.3L)
    • 4-Way M Metri-Pack 150 Sealed (GRY) or (BLK) Late Production 5.3L

Pin

Wire Color

Circuit No.

Function

A

TAN

1671

HO2S Low Signal - Bank 2 Sensor 2

B

PPL

1670

HO2S High Signal - Bank 2 Sensor 2

C

YEL

5036

HO2S Heater Low Control - Bank 2 Sensor 2

D

PNK

1539

Ignition 1 Voltage

Idle Air Control (IAC) Valve


Object Number: 684948 Size: CH

Connector Part Information
    • 15354716
    • 4-Way F GT 150 Sealed 3.2 X 4.0 (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

444

IAC Coil B Low Control

B

LT GRN/WHT

1749

IAC Coil B High Control

C

LT BLU/BLK

1748

IAC Coil A Low Control

D

LT BLU/WHT

1747

IAC Coil A High Control

Ignition Coil/Module 1


Object Number: 280765 Size: CH

Connector Part Information
    • 12162724
    • 4 Way F Metri-pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

151

Ground

B

BRN

2129

Low Reference

C

PPL

2121

IC 1 Control

D

PNK

39

Ignition 1 Voltage

Ignition Coil/Module 2


Object Number: 280765 Size: CH

Connector Part Information
    • 12162724
    • 4 Way F Metri-pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

151

Ground

B

BRN

2129

Low Reference

C

RED

2122

IC 2 Control

D

PNK

39

Ignition 1 Voltage

Ignition Coil/Module 3


Object Number: 280765 Size: CH

Connector Part Information
    • 12162724
    • 4 Way F Metri-pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

151

Ground

B

BRN

2129

Low Reference

C

LT BLU

2123

IC 3 Control

D

PNK

39

Ignition 1 Voltage

Ignition Coil/Module 4


Object Number: 280765 Size: CH

Connector Part Information
    • 12162724
    • 4 Way F Metri-pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

151

Ground

B

BRN

2129

Low Reference

C

DK GRN

2124

IC 4 Control

D

PNK

39

Ignition 1 Voltage

Ignition Coil/Module 5


Object Number: 280765 Size: CH

Connector Part Information
    • 12162724
    • 4 Way F Metri-pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

151

Ground

B

BRN

2129

Low Reference

C

DK GRN

2125

IC 5 Control

D

PNK

39

Ignition 1 Voltage

Ignition Coil/Module 6


Object Number: 280765 Size: CH

Connector Part Information
    • 12162724
    • 4 Way F Metri-pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

151

Ground

B

BRN

2129

Low Reference

C

LT BLU

2126

IC 6 Control

D

PNK

39

Ignition 1 Voltage

Ignition Coil/Module 7


Object Number: 280765 Size: CH

Connector Part Information
    • 12162724
    • 4 Way F Metri-pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

151

Ground

B

BRN

2129

Low Reference

C

RED

2127

IC 7 Control

D

PNK

39

Ignition 1 Voltage

Ignition Coil/Module 8


Object Number: 280765 Size: CH

Connector Part Information
    • 12162724
    • 4 Way F Metri-pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

151

Ground

B

BRN

2129

Low Reference

C

PPL

2128

IC 8 Control

D

PNK

39

Ignition 1 Voltage

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


Object Number: 647974 Size: CH

Connector Part Information
    • 15326822
    • 5-Way F GT 150 Sealed 4.0 (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

492

MAF Sensor Signal

B

PNK

139

Ignition 1 Voltage

C

BLK/WHT

1551

Ground

D

TAN

472

IAT Sensor Signal

E

TAN

470

Low Reference

Manifold Absolute Pressure (MAP) Sensor


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

Throttle Position (TP) Sensor


Object Number: 726824 Size: CH

Connector Part Information
    • 15344137
    • 3-Way F GT 150 Sealed 5.2 (BLK)

Pin

Wire Color

Circuit No.

Function

1

GRY

2701

5 Volt Reference

2

TAN

2752

Low Reference

3

DK BLU

411

TP Sensor Signal