GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Express - AWD 🢒 Engine 🢒 Engine Electrical 🢒 Engine Controls Connector End Views
Connector 1: Camshaft Position (CMP) Sensor
Connector 2: Central Sequential Fuel Injection (Central SFI)
Connector 3: Crankshaft Position (CKP) Sensor
Connector 4: Engine Coolant Temperature (ECT) Sensor
Connector 5: Evaporative Emission (EVAP) Canister Purge Solenoid Valve
Connector 6: Evaporative Emission (EVAP) Canister Vent Solenoid Valve
Connector 7: Fuel Pump and Sender Assembly
Connector 8: Fuel Tank Pressure (FTP) Sensor
Connector 9: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Connector 10: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Connector 11: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Connector 12: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Connector 13: Idle Air Control (IAC) Valve
Connector 14: Ignition Coil
Connector 15: Ignition Control Module (ICM)
Connector 16: Knock Sensor (KS)
Connector 17: Manifold Absolute Pressure (MAP) Sensor
Connector 18: Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Connector 19: Throttle Position (TP) Sensor

Camshaft Position (CMP) Sensor
Object Number: 684807 Size: CH

Connector Part Information

  • OEM: 12110293
  • Service: 12117025
  • Description: 3-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Camshaft Position (CMP) Sensor

Pin

Wire Color

Circuit No.

Function

A

PK/BK

632

Low Reference

B

BN/WH

633

CMP Sensor Signal

C

OG

631

12-Volt Reference

Central Sequential Fuel Injection (Central SFI)
Object Number: 39782 Size: CH

Connector Part Information

  • OEM: 12177083
  • Service: 12167140
  • Description: 12-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12066132/2
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Central Sequential Fuel Injection (Central SFI)

Pin

Wire Color

Circuit No.

Function

A

TN/WH

845

Fuel Injector 5 Control

B

PK

139

Ignition 1 Voltage

C

PK/BK

1746

Fuel Injector 3 Control

D

PK

139

Ignition 1 Voltage

E

PK

139

Ignition 1 Voltage

F

TN

1744

Fuel Injector 1 Control

G

L-GN/BK

1745

Fuel Injector 2 Control

H

PK

239

Ignition 1 Voltage

J

PK

239

Ignition 1 Voltage

K

L-BU/BK

844

Fuel Injector 4 Control

L

PK

239

Ignition 1 Voltage

M

YE/BK

846

Fuel Injector 6 Control

Crankshaft Position (CKP) Sensor
Object Number: 366117 Size: CH

Connector Part Information

  • OEM: 15324165
  • Service: 15306120
  • Description: 3-Way F Metri-Pack 150 Series Sealed (NA)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Crankshaft Position (CKP) Sensor

Pin

Wire Color

Circuit No.

Function

A

L-GN

1867

12-Volt Reference

B

PU

574

Low Reference

C

YE

573

CKP Sensor Signal

Engine Coolant Temperature (ECT) Sensor
Object Number: 1538760 Size: CH

Connector Part Information

  • OEM: 15449028
  • Service: 88987993
  • Description: 2-Way F GT 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15326267/19
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Engine Coolant Temperature (ECT) Sensor

Pin

Wire Color

Circuit No.

Function

A

TN

2761

Low Reference

B

YE

410

ECT Sensor Signal

Evaporative Emission (EVAP) Canister Purge Solenoid Valve
Object Number: 684829 Size: CH

Connector Part Information

  • OEM: 12124037
  • Service: 12101858
  • Description: 2-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Evaporative Emission (EVAP) Canister Purge Solenoid Valve

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

D-GN/WH

428

EVAP Canister Purge Solenoid Control

Evaporative Emission (EVAP) Canister Vent Solenoid Valve
Object Number: 684795 Size: CH

Connector Part Information

  • OEM: 12052643
  • Service: 12101858
  • Description: 2-Way F Metri-Pack 150 Series Sealed (RD)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Evaporative Emission (EVAP) Canister Vent Solenoid Valve

Pin

Wire Color

Circuit No.

Function

A

OG

140

Battery Positive Voltage

B

WH

1310

EVAP Canister Vent Solenoid Control

Fuel Pump and Sender Assembly
Object Number: 684908 Size: CH

Connector Part Information

  • OEM: 15326631
  • Service: 15306360
  • Description: 4-Way F GT 280 Series Sealed (BK)

Terminal Part Information

  • Pins: A, D
  • Terminal/Tray: 15304720/19
  • Core/Insulation Crimp: 4/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: B-C
  • Terminal/Tray: 15304719/19
  • Core/Insulation Crimp: E/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuel Pump and Sender Assembly

Pin

Wire Color

Circuit No.

Function

A

BK

150

Ground

B

PU

1589

Fuel Level Sensor Signal

C

BK

2759

Low Reference

D

GY

120

Fuel Pump Supply Voltage

Fuel Tank Pressure (FTP) Sensor
Object Number: 516611 Size: CH

Connector Part Information

  • OEM: 12059595
  • Service: 88986451
  • Description: 3-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Fuel Tank Pressure (FTP) Sensor

Pin

Wire Color

Circuit No.

Function

A

BK

2759

Low Reference

B

D-GN

890

Fuel Tank Pressure Sensor Signal

C

GY

2709

5-Volt Reference 2

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Object Number: 628099 Size: CH

Connector Part Information

  • OEM: 12092840
  • Service: 15306311
  • Description: 4-Way M Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

  • Pins: A, B
  • Terminal/Tray: 12045773/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-3 (GY)
  • Pins: D, E
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1

Pin

Wire Color

Circuit No.

Function

A

TN/WH

1653

HO2S Low Signal - Bank 1 Sensor 1

B

PU/WH

1665

HO2S High Signal - Bank 1 Sensor 1

C

--

--

Not Available

D

PK

539

Ignition 1 Voltage

E

L-BU

5038

HO2S Heater Low Control - Bank 1 Sensor 1

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Object Number: 831392 Size: CH

Connector Part Information

  • OEM: 12092839
  • Service: 88987991
  • Description: 4-Way M Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12045773/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-3 (GY)

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2

Pin

Wire Color

Circuit No.

Function

A

TN/WH

1669

HO2S Low Signal - Bank 1 Sensor 2

B

PU/WH

1668

HO2S High Signal - Bank 1 Sensor 2

C

--

--

Not Available

D

PK

1539

Ignition 1 Voltage

E

PU

5035

HO2S Heater Low Control - Bank 1 Sensor 2

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Object Number: 628099 Size: CH

Connector Part Information

  • OEM: 12092840
  • Service: 15306311
  • Description: 4-Way M Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

  • Pins: A, B
  • Terminal/Tray: 12045773/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-3 (GY)
  • Pins: D, E
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1

Pin

Wire Color

Circuit No.

Function

A

TN

1667

HO2S Low Signal - Bank 2 Sensor 1

B

PU

1666

HO2S High Signal - Bank 2 Sensor 1

C

--

--

Not Available

D

PK

539

Ignition 1 Voltage

E

PU/WH

5037

HO2S Heater Low Control - Bank 2 Sensor 1

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Object Number: 831392 Size: CH

Connector Part Information

  • OEM: 12092839
  • Service: 88987991
  • Description: 4-Way M Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12045773/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-3 (GY)

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2

Pin

Wire Color

Circuit No.

Function

A

TN

1671

HO2S Low Signal - Bank 2 Sensor 2

B

PU

1670

HO2S High Signal - Bank 2 Sensor 2

C

--

--

Not Available

D

PK

1539

Ignition 1 Voltage

E

YE

5036

HO2S Heater Low Control - Bank 2 Sensor 2

Idle Air Control (IAC) Valve
Object Number: 684948 Size: CH

Connector Part Information

  • OEM: 15354716
  • Service: 88986450
  • Description: 4-Way F GT 150 Series Sealed 3.2 X 4.0 (BK)

Terminal Part Information

  • Terminal/Tray: 15326267/19
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Idle Air Control (IAC) Valve

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

444

IAC Coil B Low Control

B

L-GN/WH

1749

IAC Coil B High Control

C

L-BU/BK

1748

IAC Coil A Low Control

D

L-BU/WH

1747

IAC Coil A High Control

Ignition Coil
Object Number: 68743 Size: CH

Connector Part Information

  • OEM: 12146121
  • Service: 88987992
  • Description: 3-Way F Metri-Pack 150 Series Sealed (BN)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Ignition Coil

Pin

Wire Color

Circuit No.

Function

A

PK

239

Ignition 1 Voltage

B

--

--

Not Used

C

WH/BK

1847

Ignition Coil Control

Ignition Control Module (ICM)
Object Number: 847295 Size: CH

Connector Part Information

  • OEM: 15355331
  • Service: 88987994
  • Description: 4-Way F GT 150 Series Sealed 3.2 x 4.0 (BK)

Terminal Part Information

  • Terminal/Tray: 15326267/19
  • Core/Insulation Crimp: Pins A, C - E/1
  • Core/Insulation Crimp: Pins B, D - E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Ignition Control Module (ICM)

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

WH

423

IC Timing Control

C

BK

1250

Ground

D

WH/BK

1847

Ignition Coil Control

Knock Sensor (KS)
Object Number: 684833 Size: CH

Connector Part Information

  • OEM: 12129140
  • Service: 12085491
  • Description: 2-Way F Metri-Pack 280.1 Series Sealed - Pull To Seat (BK)

Terminal Part Information

  • Terminal/Tray: 12077939/18
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12180559-1/J-35616-4A (PU)

Knock Sensor (KS)

Pin

Wire Color

Circuit No.

Function

A

D-BU

496

KS Signal

B

GY

1716

KS Signal

Manifold Absolute Pressure (MAP) Sensor
Object Number: 684840 Size: CH

Connector Part Information

  • OEM: 12129946
  • Service: 88987997
  • Description: 3-Way F Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Manifold Absolute Pressure (MAP) Sensor

Pin

Wire Color

Circuit No.

Function

A

OG/BK

469

Low Reference

B

L-GN

432

MAP Sensor Signal

C

GY

597

5-Volt Reference 1

Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Object Number: 647974 Size: CH

Connector Part Information

  • OEM: 15326822
  • Service: 88987186
  • Description: 5-Way F GT 150 Series Sealed 4.0 (BK)

Terminal Part Information

  • Terminal/Tray: 12191819/8
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

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

Pin

Wire Color

Circuit No.

Function

A

YE

492

MAF Sensor Signal

B

PK

139

Ignition 1 Voltage

C

BK/WH

1551

Ground

D

TN

472

IAT Sensor Signal

E

TN

470

Low Reference

Throttle Position (TP) Sensor
Object Number: 726824 Size: CH

Connector Part Information

  • OEM: 15344137
  • Service: 88988301
  • Description: 3-Way F GT 150 Series Sealed 5.2 (BK)

Terminal Part Information

  • Terminal/Tray: 15326267/19
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Throttle Position (TP) Sensor

Pin

Wire Color

Circuit No.

Function

1

GY

2701

5-Volt Reference 1

2

TN

2752

Low Reference

3

D-BU

411

TP Sensor Signal