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 Emission (EVAP) Canister Purge Solenoid Valve
Connector 6: Evaporative Emission (EVAP) Canister Vent Solenoid Valve
Connector 7: Exhaust Gas Recirculation (EGR) Valve
Connector 8: Fuel Injector 1
Connector 9: Fuel Injector 2
Connector 10: Fuel Injector 3
Connector 11: Fuel Injector 4
Connector 12: Fuel Injector 5
Connector 13: Fuel Injector 6
Connector 14: Fuel Pump and Sender Assembly
Connector 15: Fuel Tank Pressure (FTP) Sensor
Connector 16: Heated Oxygen Sensor (HO2S) 1
Connector 17: Heated Oxygen Sensor (HO2S) 2
Connector 18: Ignition Control Module (ICM)
Connector 19: Knock Sensor (KS) 1
Connector 20: Knock Sensor (KS) 2
Connector 21: Manifold Absolute Pressure (MAP) Sensor
Connector 22: Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Connector 23: Secondary Air Injection (AIR) Check Valve (NU6)
Connector 24: Secondary Air Injection (AIR) Pump (NU6)
Connector 25: Throttle Actuator Control (TAC) Module

Accelerator Pedal Position (APP) Sensor


Object Number: 632357  Size: CH

Connector Part Information

  • OEM: 15326829
  • Service: 88953153
  • Description: 6-Way F 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)

Accelerator Pedal Position (APP) Sensor

Pin

Wire Color

Circuit No.

Function

A

PU/WH

1272

Low Reference

B

L-BU

1162

APP Sensor 2 Signal

C

TN/BK

1274

5-Volt Reference

D

BN

1271

Low Reference

E

D-BU/WH

1161

APP Sensor 1 Signal

F

WH/BK

1164

5-Volt Reference

Camshaft Position (CMP) Sensor


Object Number: 684807  Size: CH

Connector Part Information

  • OEM: 12162279
  • Service: 12085538
  • Description: 3-Way F Metri-Pack 150.2 Series Sealed, Pull To Seat (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

Camshaft Position (CMP) Sensor

Pin

Wire Color

Circuit No.

Function

A

BN/WH

633

CMP Sensor Signal

B

BK/WH

836

Low Reference

C

WH/BK

644

12-Volt Reference

Crankshaft Position (CKP) Sensor


Object Number: 280765  Size: CH

Connector Part Information

  • OEM: 12162834
  • Service: 15305942
  • Description: 4-Way F Metri-Pack 150.2 Series Sealed, Pull To Seat (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

Crankshaft Position (CKP) Sensor

Pin

Wire Color

Circuit No.

Function

A

L-BU/WH

1800

CKP Sensor 2 Signal

B

YE

573

CKP Sensor 1 Signal

C

BK/WH

836

Low Reference

D

WH/BK

644

12-Volt Reference

Engine Coolant Temperature (ECT) Sensor


Object Number: 655692  Size: CH

Connector Part Information

  • OEM: 12162195
  • Service: 88987993
  • Description: 2-Way F Metri-Pack 150.2 Series Sealed, Pull To Seat (BK)

Terminal Part Information

  • Terminal/Tray: 12124075/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

Engine Coolant Temperature (ECT) Sensor

Pin

Wire Color

Circuit No.

Function

A

YE

410

ECT Sensor Signal

B

TN

2761

Low Reference

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

Evaporative Emission (EVAP) Canister Purge Solenoid Valve

Pin

Wire Color

Circuit No.

Function

A

PK/BK

5293

Powertrain Main Relay Fused Supply

B

D-GN/WH

428

EVAP Canister Purge Solenoid Control

Evaporative Emission (EVAP) Canister Vent 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 Vent Solenoid Valve

Pin

Wire Color

Circuit No.

Function

A

RD/WH

2840

Battery Positive Voltage

B

TN/WH

1310

EVAP Canister Vent Solenoid Control

Exhaust Gas Recirculation (EGR) Valve


Object Number: 684863  Size: CH

Connector Part Information

  • OEM: 12186056
  • Service: 15306027
  • Description: 5-Way F Metri-Pack 150.2 Series Pull To Seat, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12124075/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

Exhaust Gas Recirculation (EGR) Valve

Pin

Wire Color

Circuit No.

Function

A

D-GN

435

EGR Solenoid Low Control

B

TN/D-GN

2753

Low Reference

C

PK/YE

1456

EGR Valve Position Signal

D

GY/BK

2702

5-Volt Reference

E

OG/WH

1676

EGR Solenoid High Control

Fuel Injector 1


Object Number: 603098  Size: CH

Connector Part Information

  • OEM: 15305086
  • Service: 15306318
  • Description: 2-Way F Metri-Pack 150 Series (GY)

Terminal Part Information

  • Terminal/Tray: 12176636/19
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Fuel Injector 1

Pin

Wire Color

Circuit No.

Function

A

PK

5291

Ignition 1 Voltage

B

TN/OG

1744

Fuel Injector 1 Control

Fuel Injector 2


Object Number: 603098  Size: CH

Connector Part Information

  • OEM: 15305086
  • Service: 15306318
  • Description: 2-Way F Metri-Pack 150 Series (GY)

Terminal Part Information

  • Terminal/Tray: 12176636/19
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Fuel Injector 2

Pin

Wire Color

Circuit No.

Function

A

PK

5291

Ignition 1 Voltage

B

L-GN/BK

1745

Fuel Injector 2 Control

Fuel Injector 3


Object Number: 603098  Size: CH

Connector Part Information

  • OEM: 15305086
  • Service: 15306318
  • Description: 2-Way F Metri-Pack 150 Series (GY)

Terminal Part Information

  • Terminal/Tray: 12176636/19
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Fuel Injector 3

Pin

Wire Color

Circuit No.

Function

A

PK

5291

Ignition 1 Voltage

B

PK/BK

1746

Fuel Injector 3 Control

Fuel Injector 4


Object Number: 603098  Size: CH

Connector Part Information

  • OEM: 15305086
  • Service: 15306318
  • Description: 2-Way F Metri-Pack 150 Series (GY)

Terminal Part Information

  • Terminal/Tray: 12176636/19
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Fuel Injector 4

Pin

Wire Color

Circuit No.

Function

A

PK

5291

Ignition 1 Voltage

B

YE/BK

844

Fuel Injector 4 Control

Fuel Injector 5


Object Number: 603098  Size: CH

Connector Part Information

  • OEM: 15305086
  • Service: 15306318
  • Description: 2-Way F Metri-Pack 150 Series (GY)

Terminal Part Information

  • Terminal/Tray: 12176636/19
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Fuel Injector 5

Pin

Wire Color

Circuit No.

Function

A

PK

5291

Ignition 1 Voltage

B

TN/PK

845

Fuel Injector 5 Control

Fuel Injector 6


Object Number: 603098  Size: CH

Connector Part Information

  • OEM: 15305086
  • Service: 15306318
  • Description: 2-Way F Metri-Pack 150 Series (GY)

Terminal Part Information

  • Terminal/Tray: 12176636/19
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Fuel Injector 6

Pin

Wire Color

Circuit No.

Function

A

PK

5291

Ignition 1 Voltage

B

YE/BK

846

Fuel Injector 6 Control

Fuel Pump and Sender Assembly


Object Number: 684908  Size: CH

Connector Part Information

  • OEM: 15326632
  • Service: 15306360
  • Description: 4-Way F GT 280 Series Sealed 5.8 (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 Pump and Sender Assembly

Pin

Wire Color

Circuit No.

Function

A

BK

1050

Ground

B

PU

1589

Primary Fuel Level Sensor Signal

C

BK/WH

651

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

Fuel Tank Pressure (FTP) Sensor

Pin

Wire Color

Circuit No.

Function

A

TN

2759

Low Reference

B

D-GN

890

Fuel Tank Pressure Sensor Signal

C

GY

416

5-Volt Reference

Heated Oxygen Sensor (HO2S) 1


Object Number: 474210  Size: CH

Connector Part Information

  • OEM: 12176897 (NU6), 12160482 (w/o NU6)
  • Service: 88988598
  • Description: 4-Way F (BK)

Terminal Part Information

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

Heated Oxygen Sensor (HO2S) 1

Pin

Wire Color

Circuit No.

Function

A

TN/PK

3111

HO2S Low Reference Sensor 1

B

PU/WH

3110

HO2S Reference Voltage Sensor 1

C

GY

3112

HO2S Heater Low Control Sensor 1

D

PK/BK

5293

Powertrain Main Relay Fused Supply

Heated Oxygen Sensor (HO2S) 2


Object Number: 806613  Size: CH

Connector Part Information

  • OEM: 15326423
  • Service: 15306319
  • Description: 4-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

Heated Oxygen Sensor (HO2S) 2

Pin

Wire Color

Circuit No.

Function

A

TN/PK

3121

HO2S 2 Low Signal

B

PU

3120

HO2S 2 High Signal

C

GY/WH

3122

HO2S 2 Heater Low Control

D

PK/BK

5294

Powertrain Main Relay Fused Supply

Ignition Control Module (ICM)


Object Number: 516619  Size: CH

Connector Part Information

  • OEM: 12124379
  • Service: See Catalog
  • Description: 14-Way F Metri-Pack 150 Series Sealed, Pull To Seat (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

Ignition Control Module (ICM)

Pin

Wire Color

Circuit No.

Function

A

WH

423

IC Timing Control

B

TN/BK

424

IC Timing Signal

C

L-BU/BK

647

Medium Resolution Engine Speed Signal

D

PU/WH

430

Low Resolution Engine Speed Signal

E

WH

121

Not Used

F

BK

630

Camshaft Position Signal

G

YE

573

CKP Sensor 1 Signal

H

L-BU/WH

1800

CKP Sensor 2 Signal

J

BN/WH

633

CMP Sensor Signal

K

BK/WH

1451

Ground

L

RD/BK

453

Low Reference

M

BK/WH

836

Low Reference

N

WH/BK

644

12-Volt Reference

P

PK

239

Ignition 1 Voltage

Knock Sensor (KS) 1


Object Number: 95764  Size: CH

Connector Part Information

  • OEM: 12176800
  • Service: 15306070
  • Description: 1-Way F Metri-Pack 150 Series Sealed (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

Knock Sensor (KS) 1

Pin

Wire Color

Circuit No.

Function

1

D-BU

496

Knock Sensor 1 Signal

Knock Sensor (KS) 2


Object Number: 95764  Size: CH

Connector Part Information

  • OEM: 12176800
  • Service: 15306070
  • Description: 1-Way F Metri-Pack 150 Series Sealed (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

Knock Sensor (KS) 2

Pin

Wire Color

Circuit No.

Function

1

L-BU

1876

Knock Sensor 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

L-GN

432

Low Reference

B

YE/GY

469

MAP Sensor Signal

C

OG/WH

2704

5-Volt Reference

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

RD/YE

492

MAF Sensor Signal

B

PK/BK

5294

Engine Main Relay Fused Control

C

BK/WH

1551

Ground

D

TN

472

IAT Sensor Signal

E

TN/D-BU

2760

Low Reference

Secondary Air Injection (AIR) Check Valve (NU6)


Object Number: 1526382  Size: CH

Connector Part Information

  • OEM: 13539171
  • Service: 88988601
  • Description: 6-Way F GT 150 Series Sealed (BK)

Terminal Part Information

  • Pins: 1, 2, 3, 4, 6
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Secondary Air Injection (AIR) Check Valve (NU6)

Pin

Wire Color

Circuit No.

Function

1

WH/GY

6786

Low Reference

2

YE/GY

6788

Air Injection Position Signal

3

BN/WH

6790

5-Volt Reference

4

BK/WH

1551

Ground

5

--

--

Not Used

6

PK/BK

415

Air Injection Reaction Solenoid Supply Voltage

Secondary Air Injection (AIR) Pump (NU6)


Object Number: 1664608  Size: CH

Connector Part Information

  • OEM: 12147067
  • Service: 89046640
  • Description: 2-Way F (BK)

Terminal Part Information

  • Terminal/Tray: 12147474/24
  • Core/Insulation Crimp: G/F/3
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)

Secondary Air Injection (AIR) Pump (NU6)

Pin

Wire Color

Circuit No.

Function

A

RD

78

AIR Pump Supply Voltage

B

BK

1650

Ground

Throttle Actuator Control (TAC) Module


Object Number: 1243581  Size: CH

Connector Part Information

  • OEM: 15355368
  • Service: 15355368
  • Description: 20-Way F GT Series Sealed (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

Throttle Actuator Control (TAC) Module

Pin

Wire Color

Circuit No.

Function

1

TN/BK

1274

5-Volt Reference

2

PU/WH

1272

Low Reference

3

L-BU

1162

APP Sensor 2 Signal

4

PU/BK

389

Vehicle Speed Signal

5

--

--

Not Used

6

WH

17

Stop Lamp Switch Signal

7

WH/BK

1061

UART Serial Data Secondary

8

BK/WH

1551

Ground

9-10

--

--

Not Used

11

D-BU/WH

1161

APP Sensor 1 Signal

12

BN

1271

Low Reference

13

WH/BK

1164

5-Volt Reference

14-15

--

--

Not Used

16

TN/OG

800

UART Serial Data Primary

17

BK/WH

1551

Ground

18

PK/BK

5290

Ignition 1 Voltage

19-20

--

--

Not Used