GM Service Manual Online
For 1990-2009 cars only
Connector 1: Accelerator Pedal Position (APP) Sensor
Connector 2: Crankshaft Position (CKP) Sensor
Connector 3: Coolant Temperature (ECT) Sensor
Connector 4: Evaporative Emission (EVAP) Canister Purge Solenoid Valve
Connector 5: Evaporative Emissions (EVAP) Canister Vent Solenoid Valve
Connector 6: Fuel Injector 1 (w/ NU3)
Connector 7: Fuel Injector 2 (w/ NU3)
Connector 8: Fuel Injector 3 (w/ NU3)
Connector 9: Fuel Injector 4 (w/ NU3)
Connector 10: Fuel Injector 1 (w/o NU3)
Connector 11: Fuel Injector 2 (w/o NU3)
Connector 12: Fuel Injector 3 (w/o NU3)
Connector 13: Fuel Injector 4 (w/o NU3)
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)
Connector 20: Manifold Absolute Pressure (MAP) Sensor
Connector 21: Mass Air Flow (MAF)/Inlet Air Temperature (IAT) Sensor
Connector 22: Secondary Air Injection (AIR) Pump (NU3)
Connector 23: Secondary Air Injection (AIR) Solenoid (NU3)
Connector 24: Throttle Actuator Control (TAC) Module

Accelerator Pedal Position (APP) Sensor


Object Number: 886053  Size: CH

Connector Part Information

  • OEM: 15326830
  • Service: 88988944
  • 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)

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-2

D

BN

1271

Low Reference

E

D-BU

1161

APP Sensor 1 Signal

F

WH/BK

1164

5-Volt Reference-1

Crankshaft Position (CKP) Sensor


Object Number: 666646  Size: CH

Connector Part Information

  • OEM: 15449028
  • Service: 88987978
  • 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

Crankshaft Position (CKP) Sensor

Pin

Wire Color

Circuit No.

Function

1

PU

574

Low Reference

2

YE

573

CKP Sensor Signal

Coolant Temperature (ECT) Sensor


Object Number: 666646  Size: CH

Connector Part Information

  • OEM: 15449028
  • Service: 88987978
  • 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

Engine Coolant Temperature (ECT) Sensor

Pin

Wire Color

Circuit No.

Function

1

TN

2761

Low Reference

2

YE

410

ECT Sensor Signal

Evaporative Emission (EVAP) Canister Purge 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 Purge Solenoid Valve

Pin

Wire Color

Circuit No.

Function

A

PK/WH

5291

Ignition 1 Voltage

B

D-GN/WH

428

EVAP Canister Purge Solenoid Control

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

Evaporative Emissions (EVAP) Canister Vent Solenoid Valve

Pin

Wire Color

Circuit No.

Function

A

RD/WH

1840

Battery Positive Voltage

B

WH

1310

EVAP Canister Vent Solenoid Control

Fuel Injector 1 (w/ NU3)


Object Number: 1721512  Size: CH

Connector Part Information

  • OEM: 7283-8596-30
  • Service: 88988766
  • Description: 2-Way F 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 Injector 1 (w/ NU3)

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

BK

1744

Fuel Injector 1 Control

Fuel Injector 2 (w/ NU3)


Object Number: 1721512  Size: CH

Connector Part Information

  • OEM: 7283-8596-30
  • Service: 88988766
  • Description: 2-Way F 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 Injector 2 (w/ NU3)

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

L-GN/BK

1745

Fuel Injector 2 Control

Fuel Injector 3 (w/ NU3)


Object Number: 1721512  Size: CH

Connector Part Information

  • OEM: 7283-8596-30
  • Service: 88988766
  • Description: 2-Way F 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 Injector 3 (w/ NU3)

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

PK/BK

1746

Fuel Injector 3 Control

Fuel Injector 4 (w/ NU3)


Object Number: 1721512  Size: CH

Connector Part Information

  • OEM: 7283-8596-30
  • Service: 88988766
  • Description: 2-Way F 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 Injector 4 (w/ NU3)

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

L-BU/BK

844

Fuel Injector 4 Control

Fuel Injector 1 (w/o NU3)


Object Number: 1527729  Size: CH

Connector Part Information

  • OEM: 15419715
  • Service: Not Serviceable
  • Description: 2-Way F (GY)

Fuel Injector 1 (w/o NU3)

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

BK

1744

Fuel Injector 1 Control

Fuel Injector 2 (w/o NU3)


Object Number: 1527729  Size: CH

Connector Part Information

  • OEM:15419715
  • Service: Not Serviceable
  • Description: 2-Way F (Gy)

Fuel Injector 2 (w/o NU3)

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

L-GN/BK

1745

Fuel Injector 2 Control

Fuel Injector 3 (w/o NU3)


Object Number: 1527729  Size: CH

Connector Part Information

  • OEM: 15419715
  • Service: Not Serviceable
  • Description: 2-Way F (GY)

Fuel Injector 3 (w/o NU3)

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

PK/BK

1746

Fuel Injector 3 Control

Fuel Injector 4 (w/o NU3)


Object Number: 1527729  Size: CH

Connector Part Information

  • OEM: 15419715
  • Service: Not Serviceable
  • Description: 2-Way F (GY)

Fuel Injector 4 (w/o NU3)

Pin

Wire Color

Circuit No.

Function

A

PK

139

Ignition 1 Voltage

B

L-BU/BK

844

Fuel Injector 4 Control

Fuel Pump and Sender Assembly


Object Number: 1464949  Size: CH

Connector Part Information

  • OEM: 776127-2
  • Service: See Catalog
  • Description: 4-Way F APEX 2.8 MM (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

Fuel Pump and Sender Assembly

Pin

Wire Color

Circuit No.

Function

1

PK/BK

120

Fuel Pump Supply Voltage

2

YE/WH

1589

Fuel Level Sensor Signal

3

BK

850

Ground

4

PK/OG

510

Low Reference

Fuel Tank Pressure (FTP) Sensor


Object Number: 516611  Size: CH

Connector Part Information

  • OEM: 12059595
  • Service: 12085495
  • Description: 3-Way 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

RD/PK

2759

Low Reference

B

GY/RD

890

Fuel Tank Pressure Sensor Signal

C

BN/WH

2709

5-Volt Reference-1

Heated Oxygen Sensor (HO2S) 1


Object Number: 474210  Size: CH

Connector Part Information

  • OEM: 12176897
  • Service: 15305903
  • Description: 4-Way F Metri-Pack 150 Series Sealed (L-GY)

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/WH

3111

HO2S Low Signal sensor 1

B

PU/WH

3110

HO2S High Signal Sensor 1

C

GY/WH

3113

HO2S Heater Low Control Sensor 1

D

PK/BK

5291

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) 2


Object Number: 280761  Size: CH

Connector Part Information

  • OEM: 12160825
  • Service: 12167158
  • Description: 4-Way M Metri-Pack 150 Series Sealed (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) 2

Pin

Wire Color

Circuit No.

Function

A

TN/WH

1669

HO2S Signal Sensor 2

B

PU/WH

1668

HO2S High Signal Sensor 2

C

PK/BK

5291

Ignition 1 Voltage

D

GY/WH

1423

HO2S Heater Low Control Sensor 2

Ignition Control Module (ICM)


Object Number: 877917  Size: CH

Connector Part Information

  • OEM: 15464996
  • Service: 88987910
  • Description: 9-Way F GT 150 Series Sealed (BK)

Terminal Part Information

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

Ignition Control Module (ICM)

Pin

Wire Color

Circuit No.

Function

A

PK/WH

5292

Ignition 1 Voltage

B

WH

423

IC Timing Control

C-D

--

--

Not Used

E

BK

450

Ground

F

BN/WH

633

CMP Sensor Signal

G

OG

406

IC Timing Control [B]

H-J

--

--

Not Used

Knock Sensor (KS)


Object Number: 684799  Size: CH

Connector Part Information

  • OEM: 12077900
  • Service: 12116247
  • Description: 2-Way F Metri-Pack 280 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12077411/2
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Knock Sensor (KS)

Pin

Wire Color

Circuit No.

Function

A

D-BU

496

Knock Sensor (1) Signal

B

GY

1716

Low Reference

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 (M-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

2704

5-Volt Reference-2

Mass Air Flow (MAF)/Inlet Air Temperature (IAT) 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

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

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

Pin

Wire Color

Circuit No.

Function

A

YE

492

MAF Sensor Signal

B

BK/WH

451

Ground

C

PK/BK

5291

Ignition 1 Voltage

D

TN

2760

Low Reference

E

TN

472

IAT Sensor Signal

Secondary Air Injection (AIR) Pump (NU3)


Object Number: 1413064  Size: CH

Connector Part Information

  • OEM: 12124819
  • Service: 12085498
  • Description: 2-Way F Metri-Pack 280 Series (NA)

Terminal Part Information

  • Terminal/Tray: 12077413/4
  • Core/Insulation Crimp: B/5
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Secondary Air Injection (AIR) Pump (NU3)

Pin

Wire Color

Circuit No.

Function

A

OG

78

AIR Pump Supply Voltage

B

BK

1050

Ground

Secondary Air Injection (AIR) Solenoid (NU3)


Object Number: 1526382  Size: CH

Connector Part Information

  • OEM: 15460171
  • Service: 88988601
  • Description: 6-Way F Metri-Pack 150 Sealed Series (BK)

Terminal Part Information

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

Secondary Air Injection (AIR) Solenoid (NU3)

Pin

Wire Color

Circuit No.

Function

1

BK

407

Low Reference

2

WH

5268

AIR Solenoid Position Signal

3

GY

474

5-Volt Reference

4

BK/WH

451

Ground

5

--

--

Not Used

6

PK/BK

415

AIR Solenoid Supply Voltage

Throttle Actuator Control (TAC) Module


Object Number: 831368  Size: CH

Connector Part Information

  • OEM: 15326836
  • Service: 88986255
  • Description: 8-Way F GT 150 Series Sealed (BK)

Terminal Part Information

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

Throttle Actuator Control (TAC) Module

Pin

Wire Color

Circuit No.

Function

A

D-GN

485

TP Sensor 1 Signal

B

TN/WH

1704

Low Reference

C

GY

2701

5-Volt Reference-1

D

PU

486

TP Sensor 2 Signal

E

BN

582

TAC Motor Control - 2

F

YE

581

TAC Motor Control - 1

G

TN

2752

Low Reference

H

L-BU/BK

1688

5-Volt Reference-2