GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 TopKick C-Series (Conventional) C4/C5 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Engine Controls Connector End Views
Connector 1: Accelerator Pedal Position (APP) Sensor
Connector 2: Barometric Pressure (BARO) Sensor
Connector 3: Camshaft Position (CMP) Sensor - Bottom
Connector 4: Camshaft Position (CMP) Sensor - Top
Connector 5: Crankshaft Position (CKP) Sensor
Connector 6: Engine Coolant Temperature (ECT) Sensor
Connector 7: Ether Injector Control Solenoid Valve (KTE)
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 Pressure Regulator
Connector 15: Fuel Rail Pressure (FRP) Sensor
Connector 16: Glow Plug Relay
Connector 17: Heated Fuel/Water Separator - Secondary (KUN)
Connector 18: High Idle Switch (UF3)
Connector 19: Intake Air (IA) Heater
Connector 20: Intake Air (IA) Heater Relay
Connector 21: Intake Air Temperature (IAT) Sensor
Connector 22: Manifold Absolute Pressure (MAP) Sensor
Connector 23: Suction Control Valve (SCV)

Accelerator Pedal Position (APP) 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)

Accelerator Pedal Position (APP) Sensor

Pin

Wire Color

Circuit No.

Function

A

WH/BK

1164

5-Volt Reference

B

BK/WH

451

Ground

C

D-BU

1161

APP Sensor 1 Signal

Barometric Pressure (BARO) Sensor
Object Number: 280779 Size: CH

Connector Part Information

  • OEM: 12103771
  • Service: 15305891
  • 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

Barometric Pressure (BARO) Sensor

Pin

Wire Color

Circuit No.

Function

A

GN

G829

Low Reference

B

GN

G849

Injection Actuation Pressure Sensor Signal

C

WH

G828

5-Volt Reference

Camshaft Position (CMP) Sensor - Bottom
Object Number: 646176 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • 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

Camshaft Position (CMP) Sensor - Bottom

Pin

Wire Color

Circuit No.

Function

A

BU

E965

Bottom Camshaft Position Signal - High

B

YE

E966

Bottom Camshaft Position Signal - Low

Camshaft Position (CMP) Sensor - Top
Object Number: 646176 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • 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

Camshaft Position (CMP) Sensor - Top

Pin

Wire Color

Circuit No.

Function

A

BK

E963

Top Camshaft Position Signal - High

B

WH

E964

Top Camshaft Position Signal - Low

Crankshaft Position (CKP) Sensor
Object Number: 646176 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • 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

Crankshaft Position (CKP) Sensor

Pin

Wire Color

Circuit No.

Function

A

--

--

CKP Sensor - High

B

--

--

CKP Sensor - Low

Engine Coolant Temperature (ECT) Sensor
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F Sealed

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

BU

995

ECT Sensor Signal

2

PK

G833

Low Reference

Ether Injector Control Solenoid Valve (KTE)
Object Number: 603213 Size: CH

Connector Part Information

  • OEM: 15326679
  • Service: 15306196
  • Description: 2-Way F GT 280 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

Ether Injector Control Solenoid Valve (KTE)

Pin

Wire Color

Circuit No.

Function

A

TN

1997

Ether Solenoid - Feed

B

BK

350

Battery Positive Voltage

Fuel Injector 1
Object Number: 833727 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F

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

Pin

Wire Color

Circuit No.

Function

A

GY

A701

Fuel Injector 1 Control

B

WH

A983

Low Reference

Fuel Injector 2
Object Number: 833727 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F

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

Pin

Wire Color

Circuit No.

Function

A

PU

A702

Fuel Injector 2 Control

B

WH

A983

Low Reference

Fuel Injector 3
Object Number: 833727 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F

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

Pin

Wire Color

Circuit No.

Function

A

BN

A703

Fuel Injector 3 Control

B

OG

A984

Low Reference

Fuel Injector 4
Object Number: 833727 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F

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

Pin

Wire Color

Circuit No.

Function

A

GN

A704

Fuel Injector 4 Control

B

OG

A984

Low Reference

Fuel Injector 5
Object Number: 833727 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F

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 5

Pin

Wire Color

Circuit No.

Function

A

BU

A705

Fuel Injector 5 Control

B

YE

A985

Low Reference

Fuel Injector 6
Object Number: 833727 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F

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 6

Pin

Wire Color

Circuit No.

Function

A

GY

A706

Fuel Injector 6 Control

B

YE

A985

Low Reference

Fuel Pressure Regulator
Object Number: 833727 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F

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 Pressure Regulator

Pin

Wire Color

Circuit No.

Function

A

PK

G854

Fuel Pressure Regulator Solenoid Control - PWM

B

PU

G855

Low Reference

Fuel Rail Pressure (FRP) Sensor
Object Number: 684807 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 3-Way F

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 Rail Pressure (FRP) Sensor

Pin

Wire Color

Circuit No.

Function

A

GN

G829

Low Reference

B

BN

G849

Fuel Rail Pressure Sensor Signal

C

WH

G828

5-Volt Reference

Glow Plug Relay
Object Number: 833727 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F

Terminal Part Information

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

Glow Plug Relay

Pin

Wire Color

Circuit No.

Function

A

PK

G854

Fuel Pressure Regulator Solenoid Control - PWM

B

PU

G855

Low Reference

Heated Fuel/Water Separator - Secondary (KUN)
Object Number: 1542761 Size: CH

Connector Part Information

  • OEM: 15326623
  • Service: 88987864
  • Description: 3-Way M GT 280 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15304731/19
  • Core/Insulation Crimp: Pins A, C - 2/5
  • Core/Insulation Crimp: Pins B - C/5
  • Release Tool/Test Probe: 15315247/J-35616-5 (PU)

Heated Fuel/Water Separator - Secondary (KUN)

Pin

Wire Color

Circuit No.

Function

A

PK

2677

Heated Fuel Relay Supply Voltage

B

YE/BK

508

Water In Fuel Indicator Control

C

BK

250

Ground

High Idle Switch (UF3)
Object Number: 304345 Size: CH

Connector Part Information

  • OEM: 12177195
  • Service: 15305931
  • Description: 6-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Pins: A-C, E-F
  • Terminal/Tray: 12129484/19
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)
  • Pins: D
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

High Idle Switch (UF3)

Pin

Wire Color

Circuit No.

Function

A

BK

750

Ground

B

BK

750

Ground

C

D-GN

534

High Idle Switch Signal

D

BN

985

IA Heater Relay Control

E

BN

2509

Left Rear Park Lamps Supply Voltage

F

BK

750

Ground

Intake Air (IA) Heater
Object Number: 696956 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 1-Way F

Terminal Part Information

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

Intake Air (IA) Heater

Pin

Wire Color

Circuit No.

Function

A

RD

--

Intake Air Heater Supply Voltage

Intake Air (IA) Heater Relay
Object Number: 603108 Size: CH

Connector Part Information

  • OEM: 15336745
  • Service: 15306331
  • Description: 4-Way F GT 280/Metri-Pack 800 Mixed 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

Intake Air (IA) Heater Relay

Pin

Wire Color

Circuit No.

Function

30

RD

--

Intake Air Heater Supply Voltage

85

RD

C987

Ignition 1 Voltage

86

BU

G850

Intake Air Heater Indicator Relay Control

87

RD

2

Battery Positive Voltage

Intake Air Temperature (IAT) Sensor
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • Description: 2-Way F Sealed

Terminal Part Information

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

Intake Air Temperature (IAT) Sensor

Pin

Wire Color

Circuit No.

Function

1

BU

C967

IAT Sensor Signal

2

PK

G833

Low Reference

Manifold Absolute Pressure (MAP) Sensor
Object Number: 280779 Size: CH

Connector Part Information

  • OEM: 12103771
  • Service: 15305891
  • 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

Manifold Absolute Pressure (MAP) Sensor

Pin

Wire Color

Circuit No.

Function

A

GN

G829

Low Reference

B

PK

A746

MAP Sensor Signal

C

WH

G828

5-Volt Reference

Suction Control Valve (SCV)
Object Number: 603213 Size: CH

Connector Part Information

  • OEM: --
  • Service: See Catalog
  • 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

Suction Control Valve (SCV)

Pin

Wire Color

Circuit No.

Function

A

PK

G854

SCV High Control

B

PU

G855

SCV Low Control