GM Service Manual Online
For 1990-2009 cars only
Connector 1: Accelerator Pedal Position (APP) Sensor
Connector 2: Camshaft Position (CMP) Sensor
Connector 3: Crankshaft Position (CKP) Sensor
Connector 4: Engine Coolant Temperature (ECT) Sensor
Connector 5: Evaporative Emissions (EVAP) Canister Purge Valve Solenoid
Connector 6: Evaporative Emissions (EVAP) Canister Vent Solenoid
Connector 7: Fuel Injector 1
Connector 8: Fuel Injector 2
Connector 9: Fuel Injector 3
Connector 10: Fuel Injector 4
Connector 11: Fuel Injector 5
Connector 12: Fuel Injector 6
Connector 13: Fuel Injector 7
Connector 14: Fuel Injector 8
Connector 15: Fuel Tank Pressure Sensor
Connector 16: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Connector 17: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2
Connector 18: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Connector 19: Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2
Connector 20: Ignition Coil/Module 1
Connector 21: Ignition Coil/Module 2
Connector 22: Ignition Coil/Module 3
Connector 23: Ignition Coil/Module 4
Connector 24: Ignition Coil/Module 5
Connector 25: Ignition Coil/Module 6
Connector 26: Ignition Coil/Module 7
Connector 27: Ignition Coil/Module 8
Connector 28: Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor
Connector 29: Knock Sensor (KS) 1
Connector 30: Knock Sensor (KS) 2
Connector 31: Manifold Absolute Pressure (MAP) Sensor
Connector 32: Throttle Body Assembly

Accelerator Pedal Position (APP) Sensor


Object Number: 886053  Size: CH

Connector Part Information

  • OEM: 15326830
  • Service: 88953153
  • Description: 6-Way F GT 150 Series (BK)

Terminal Part Information

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

Accelerator Pedal Position (APP) Sensor

Pin

Wire Color

Circuit No.

Function

A

PU

1272

Low Reference

B

L-BU

1162

APP Sensor 2 Signal

C

TN

1274

5-Volt Reference 1

D

BN

1271

Low Reference

E

D-BU

1161

APP Sensor 1 Signal

F

WH/BK

1164

5-Volt Reference 2

Camshaft Position (CMP) Sensor


Object Number: 516611  Size: CH

Connector Part Information

  • OEM: 12059595
  • Service: Service by Harness - See Part Catalog
  • Description: 3-Way F Metri-Pack 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Camshaft Position (CMP) Sensor

Pin

Wire Color

Circuit No.

Function

A

RD

631

5-Volt Reference 1

B

PK/BK

632

Low Reference

C

BN/WH

633

CMP Sensor Signal

Crankshaft Position (CKP) Sensor


Object Number: 684840  Size: CH

Connector Part Information

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

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

D-BU/WH

1869

CKP Sensor Signal

B

YE/BK

1868

Low Reference

C

L-GN

1867

5-Volt Reference 2

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

Coolant Temperature Sensor Low Reference

B

YE

410

Engine Coolant Temperature Sensor Signal

Evaporative Emissions (EVAP) Canister Purge Valve Solenoid


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 Emissions (EVAP) Canister Purge Valve Solenoid

Pin

Wire Color

Circuit No.

Function

A

PK

539

Ignition 1 Voltage

B

D-GN/WH

428

EVAP Canister Purge Solenoid Control

Evaporative Emissions (EVAP) Canister Vent Solenoid


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

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

Evaporative Emissions (EVAP) Canister Vent Solenoid

Pin

Wire Color

Circuit No.

Function

A

RD/WH

2840

Battery Positive Voltage

B

WH

1310

EVAP Canister Vent Solenoid Control

Fuel Injector 1


Object Number: 1659331  Size: CH

Connector Part Information

  • OEM: E-2157-000
  • Service: 88988054
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (BK)

Terminal Part Information

  • Pins: 1, 2
  • Terminal/Tray: 7116-4102-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)

Fuel Injector 1

Pin

Wire Color

Circuit No.

Function

1

PK

39

Ignition 1 Voltage

2

TN

1744

Fuel Injector 1 Control

Fuel Injector 2


Object Number: 1659331  Size: CH

Connector Part Information

  • OEM: E-2157-000
  • Service: 88988054
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (BK)

Terminal Part Information

  • Pins: 1, 2
  • Terminal/Tray: 7116-4102-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)

Fuel Injector 2

Pin

Wire Color

Circuit No.

Function

1

PK

139

Ignition 1 Voltage

2

L-GN/BK

1745

Fuel Injector 2 Control

Fuel Injector 3


Object Number: 1659331  Size: CH

Connector Part Information

  • OEM: E-2157-000
  • Service: 88988054
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (BK)

Terminal Part Information

  • Pins: 1, 2
  • Terminal/Tray: 7116-4102-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)

Fuel Injector 3

Pin

Wire Color

Circuit No.

Function

1

PK

39

Ignition 1 Voltage

2

PK/BK

1746

Fuel Injector 3 Control

Fuel Injector 4


Object Number: 1659331  Size: CH

Connector Part Information

  • OEM: E-2157-000
  • Service: 88988054
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (BK)

Terminal Part Information

  • Pins: 1, 2
  • Terminal/Tray: 7116-4102-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)

Fuel Injector 4

Pin

Wire Color

Circuit No.

Function

1

PK

139

Ignition 1 Voltage

2

L-BU/BK

844

Fuel Injector 4 Control

Fuel Injector 5


Object Number: 1659331  Size: CH

Connector Part Information

  • OEM: E-2157-000
  • Service: 88988054
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (BK)

Terminal Part Information

  • Pins: 1, 2
  • Terminal/Tray: 7116-4102-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)

Fuel Injector 5

Pin

Wire Color

Circuit No.

Function

1

PK

39

Ignition 1 Voltage

2

TN/WH

845

Fuel Injector 5 Control

Fuel Injector 6


Object Number: 1659331  Size: CH

Connector Part Information

  • OEM: E-2157-000
  • Service: 88988054
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (BK)

Terminal Part Information

  • Pins: 1, 2
  • Terminal/Tray: 7116-4102-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)

Fuel Injector 6

Pin

Wire Color

Circuit No.

Function

1

PK

139

Ignition 1 Voltage

2

YE/BK

846

Fuel Injector 6 Control

Fuel Injector 7


Object Number: 1659331  Size: CH

Connector Part Information

  • OEM: E-2157-000
  • Service: 88988054
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (BK)

Terminal Part Information

  • Pins: 1, 2
  • Terminal/Tray: 7116-4102-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)

Fuel Injector 7

Pin

Wire Color

Circuit No.

Function

1

PK

39

Ignition 1 Voltage

2

OG/BK

877

Fuel Injector 7 Control

Fuel Injector 8


Object Number: 1659331  Size: CH

Connector Part Information

  • OEM: E-2157-000
  • Service: 88988054
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (BK)

Terminal Part Information

  • Pins: 1, 2
  • Terminal/Tray: 7116-4102-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)

Fuel Injector 8

Pin

Wire Color

Circuit No.

Function

1

PK

139

Ignition 1 Voltage

2

D-BU/WH

878

Fuel Injector 8 Control

Fuel Tank Pressure 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: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Fuel Tank Pressure Sensor

Pin

Wire Color

Circuit No.

Function

A

TN

2759

Low Reference

B

D-GN

890

Fuel Tank Pressure Sensor Signal

C

GY

2709

5-Volt Reference 1

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1


Object Number: 874937  Size: CH

Connector Part Information

  • OEM: 12146047
  • Service: 12146047
  • Description: 5-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

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

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1

Pin

Wire Color

Circuit No.

Function

A

TN

1664

HO2S Low Signal Bank 1 Sensor 1

B

PU/WH

1665

HO2S High Signal Bank 1 Sensor 1

C

--

--

Not Available

D

PK

339

Ignition 1 Voltage

E

GY/WH

3113

HO2S Heater Low Control Bank 1 Sensor 1

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2


Object Number: 806613  Size: CH

Connector Part Information

  • OEM: 15448421
  • Service: 88988141
  • Description: 4-Way M Metri-Pack 150 Series (GY)

Terminal Part Information

  • 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 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

BN

2391

HO2S Heater Low Control Bank 1 Sensor 2

D

PK

339

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1


Object Number: 874937  Size: CH

Connector Part Information

  • OEM: 12146047
  • Service: 12146047
  • Description: 5-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

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

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

339

Ignition 1 Voltage

E

L-GN

3212

HO2S Heater Low Control Bank 2 Sensor 1

Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2


Object Number: 806613  Size: CH

Connector Part Information

  • OEM: 15326423
  • Service: 88988141
  • 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

OG/WH

3223

HO2S Heater Low Control Bank 2 Sensor 2

D

PK

339

Ignition 1 Voltage

Ignition Coil/Module 1


Object Number: 1581641  Size: CH

Connector Part Information

  • OEM: 15439568
  • Service: 88987184
  • Description: 4-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Ignition Coil/Module 1

Pin

Wire Color

Circuit No.

Function

A

BK

151

Ground

B

BN

2129

Low Reference

C

PU

2121

IC 1 Control

D

PK

39

Ignition 1 Voltage

Ignition Coil/Module 2


Object Number: 1581641  Size: CH

Connector Part Information

  • OEM: 15439568
  • Service: 88987184
  • Description: 4-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Ignition Coil/Module 2

Pin

Wire Color

Circuit No.

Function

A

BK

151

Ground

B

BN

2130

Low Reference

C

RD

2122

IC 2 Control

D

PK

39

Ignition 1 Voltage

Ignition Coil/Module 3


Object Number: 1581641  Size: CH

Connector Part Information

  • OEM: 15439568
  • Service: 88987184
  • Description: 4-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Ignition Coil/Module 3

Pin

Wire Color

Circuit No.

Function

A

BK

151

Ground

B

BN

2129

Low Reference

C

L-BU

2123

IC 3 Control

D

PK

39

Ignition 1 Voltage

Ignition Coil/Module 4


Object Number: 1581641  Size: CH

Connector Part Information

  • OEM: 15439568
  • Service: 88987184
  • Description: 4-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Ignition Coil/Module 4

Pin

Wire Color

Circuit No.

Function

A

BK

151

Ground

B

BN

2130

Low Reference

C

D-GN

2124

IC 4 Control

D

PK

39

Ignition 1 Voltage

Ignition Coil/Module 5


Object Number: 1581641  Size: CH

Connector Part Information

  • OEM: 15439568
  • Service: 88987184
  • Description: 4-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Ignition Coil/Module 5

Pin

Wire Color

Circuit No.

Function

A

BK

151

Ground

B

BN

2129

Low Reference

C

D-GN

2125

IC 5 Control

D

PK

39

Ignition 1 Voltage

Ignition Coil/Module 6


Object Number: 1581641  Size: CH

Connector Part Information

  • OEM: 15439568
  • Service: 88987184
  • Description: 4-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Ignition Coil/Module 6

Pin

Wire Color

Circuit No.

Function

A

BK

151

Ground

B

BN

2130

Low Reference

C

L-BU

2126

IC 6 Control

D

PK

39

Ignition 1 Voltage

Ignition Coil/Module 7


Object Number: 1581641  Size: CH

Connector Part Information

  • OEM: 15439568
  • Service: 88987184
  • Description: 4-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Ignition Coil/Module 7

Pin

Wire Color

Circuit No.

Function

A

BK

151

Ground

B

BN

2129

Low Reference

C

RD

2127

IC 7 Control

D

PK

39

Ignition 1 Voltage

Ignition Coil/Module 8


Object Number: 1581641  Size: CH

Connector Part Information

  • OEM: 15439568
  • Service: 88987184
  • Description: 4-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Ignition Coil/Module 8

Pin

Wire Color

Circuit No.

Function

A

BK

151

Ground

B

BN

2130

Low Reference

C

PU

2128

IC 8 Control

D

PK

39

Ignition 1 Voltage

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


Object Number: 647974  Size: CH

Connector Part Information

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

Terminal Part Information

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

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

Pin

Wire Color

Circuit No.

Function

A

YE

492

MAF Sensor Signal

B

BK/WH

451

Ground

C

PK

539

Ignition 1 Voltage

D

TN

2760

Low Reference

E

TN

472

IAT Sensor Signal

Knock Sensor (KS) 1


Object Number: 1232999  Size: CH

Connector Part Information

  • OEM: 15374222
  • Service: 88988142
  • Description: 2-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Knock Sensor (KS) 1

Pin

Wire Color

Circuit No.

Function

A

D-BU

496

KS 1 Signal

B

GY

1716

KS 1 Signal

Knock Sensor (KS) 2


Object Number: 1232999  Size: CH

Connector Part Information

  • OEM: 15374222
  • Service: 88988142
  • Description: 2-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Knock Sensor (KS) 2

Pin

Wire Color

Circuit No.

Function

A

L-BU

1876

KS 2 Signal

B

GY

2303

KS 2 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

Manifold Absolute Pressure Sensor Signal

C

GY

2704

5-Volt Reference 1

Throttle Body Assembly


Object Number: 1468494  Size: CH

Connector Part Information

  • OEM: 15355297
  • Service: 88988106
  • Description: 6-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

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

Throttle Body Assembly

Pin

Wire Color

Circuit No.

Function

A

BN

582

TAC Motor Control - 2

B

YE

581

TAC Motor Control - 1

C

TN/WH

1704

Low Reference

D

D-GN

485

TP Sensor 1 Signal

E

L-BU/BK

1688

5-Volt Reference 2

F

PU

486

TP Sensor 2 Signal