GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Engine Controls Connector End Views
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: Exhaust Gas Recirculation (EGR) Valve
Connector 6: Fuel Heater
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 Pressure Regulator
Connector 16: Fuel Pump - Except NQZ
Connector 17: Fuel Rail Pressure (FRP) Sensor
Connector 18: Fuel Rail Temperature (FRT) Sensor
Connector 19: Glow Plug Control Module (GPCM) C1
Connector 20: Glow Plug Control Module (GPCM) C2
Connector 21: Intake Air Heater (IAH) Module
Connector 22: Intake Air Temperature (IAT) Sensor 2
Connector 23: Manifold Absolute Pressure (MAP) Sensor
Connector 24: Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Connector 25: Turbocharger Vane Position Control Solenoid Valve
Connector 26: Turbocharger Vane Position Sensor

Accelerator Pedal Position (APP) Sensor
Object Number: 1708509 Size: CH

Connector Part Information

  • OEM: 31402-6110
  • Service: 88988939
  • Description: 6-Way F 0.64 Kaizen Series (BK)

Terminal Part Information

  • Terminal/Tray: SAIT-A03T-M064/Yazaki 14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215A/J-35616-64B (L-BU)

Accelerator Pedal Position (APP) Sensor

Pin

Wire Color

Circuit No.

Function

1

PU

1272

Low Reference

2

L-BU

1162

APP Sensor 2 Signal

3

TN

1274

5-Volt Reference

4

WH/BK

1164

5-Volt Reference

5

D-BU

1161

APP Sensor 1 Signal

6

BN

1271

Low Reference

Camshaft Position (CMP) Sensor
Object Number: 1366572 Size: CH

Connector Part Information

  • OEM: 6248-5317
  • Service: See Catalog
  • Description: 3-Way F 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

Camshaft Position (CMP) Sensor

Pin

Wire Color

Circuit No.

Function

1

D-BU/WH

6265

CMP Sensor Signal

2

BN

6266

Low Reference

3

D-BU

6259

5-Volt Reference

Crankshaft Position (CKP) Sensor
Object Number: 1366572 Size: CH

Connector Part Information

  • OEM: 6248-5317
  • Service: See Catalog
  • Description: 3-Way F 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

Crankshaft Position (CKP) Sensor

Pin

Wire Color

Circuit No.

Function

1

WH/BK

6271

CKP Sensor Signal

2

GY/BK

6272

Low Reference

3

PU/WH

6270

5-Volt Reference

Engine Coolant Temperature (ECT) Sensor
Object Number: 655692 Size: CH

Connector Part Information

  • OEM: 12162192
  • Service: 88987978
  • Description: 2-Way Metri-Pack 150.2 Series, Sealed, Pull To Seat (BK)

Terminal Part Information

  • Terminal/Tray: 12124075/Delphi 5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-14 (GN)

Engine Coolant Temperature (ECT) Sensor

Pin

Wire Color

Circuit No.

Function

A

BK

720

Low Reference

B

YE

410

ECT Sensor Signal

Exhaust Gas Recirculation (EGR) Valve
Object Number: 1366573 Size: CH

Connector Part Information

  • OEM: 6195-0021
  • Service: 97324702
  • Description: 6-Way F DL Series Sealed (GY)

Terminal Part Information

  • Terminal/Tray: 8240-4862/Sumitomo 22
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)

Exhaust Gas Recirculation (EGR) Valve

Pin

Wire Color

Circuit No.

Function

A

GY

2703

5-Volt Reference

B

TN

2754

Low Reference

C

BN/WH

5763

EGR Valve Position Signal

D

OG/BK

5764

EGR Motor High Control

E

--

--

Not Used

F

L-GN/BK

5746

EGR Motor Low Control

Fuel Heater
Object Number: 903274 Size: CH

Connector Part Information

  • OEM: 7118-3320-30
  • Service: See Catalog
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 7114-1050/Yazaki 14
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 12094430/J-35616-5 (PU)

Fuel Heater

Pin

Wire Color

Circuit No.

Function

1

PK

239

Ignition 1 Voltage

2

BK

IC96

Ground

Fuel Injector 1
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: 1 928 404 114
  • Service: See Catalog
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 1928498055/Delphi 8
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Fuel Injector 1

Pin

Wire Color

Circuit No.

Function

1

TN

1744

Fuel Injector 1 Control

2

OG

5421

Injector Positive Voltage Control Group 1

Fuel Injector 2
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: 1 928 404 114
  • Service: See Catalog
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 1928498055/Delphi 8
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Fuel Injector 2

Pin

Wire Color

Circuit No.

Function

1

L-GN/BK

1745

Fuel Injector 2 Control

2

PU

5423

Injector Positive Voltage Control Group 3

Fuel Injector 3
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: 1 928 404 114
  • Service: See Catalog
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 1928498055/Delphi 8
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Fuel Injector 3

Pin

Wire Color

Circuit No.

Function

1

PK/BK

1746

Fuel Injector 3 Control

2

PK

5425

Injector Positive Voltage Control Group 4

Fuel Injector 4
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: 1 928 404 114
  • Service: See Catalog
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 1928498055/Delphi 8
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Fuel Injector 4

Pin

Wire Color

Circuit No.

Function

1

L-BU/BK

844

Fuel Injector 4 Control

2

OG

5421

Injector Positive Voltage Control Group 1

Fuel Injector 5
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: 1 928 404 114
  • Service: See Catalog
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 1928498055/Delphi 8
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Fuel Injector 5

Pin

Wire Color

Circuit No.

Function

1

TN/WH

845

Fuel Injector 5 Control

2

PU

5423

Injector Positive Voltage Control Group 3

Fuel Injector 6
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: 1 928 404 114
  • Service: See Catalog
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 1928498055/Delphi 8
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Fuel Injector 6

Pin

Wire Color

Circuit No.

Function

1

YE/BK

846

Fuel Injector 6 Control

2

YE

5422

Injector Positive Voltage Control Group 2

Fuel Injector 7
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: 1 928 404 114
  • Service: See Catalog
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 1928498055/Delphi 8
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Fuel Injector 7

Pin

Wire Color

Circuit No.

Function

1

OG/BK

877

Fuel Injector 7 Control

2

PU

5422

Injector Positive Voltage Control Group 2

Fuel Injector 8
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: 1 928 404 114
  • Service: See Catalog
  • Description: 2-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 1928498055/Delphi 8
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Fuel Injector 8

Pin

Wire Color

Circuit No.

Function

1

D-BU/WH

878

Fuel Injector 7 Control

2

PK

5425

Injector Positive Voltage Control Group 4

Fuel Pressure Regulator
Object Number: 784092 Size: CH

Connector Part Information

  • OEM: 1 928 403 874
  • 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

Fuel Pressure Regulator

Pin

Wire Color

Circuit No.

Function

1

PU/WH

2530

Fuel Pressure Regulator Solenoid Supply Voltage

2

YE

2834

Fuel Pressure Regulator Solenoid Control

Fuel Pump - Except NQZ
Object Number: 365945 Size: CH

Connector Part Information

  • OEM: 12059450
  • Service: 15306134
  • Description: 2-Way M Metri-Pack 280 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12048159/2
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-5 (PU)

Fuel Pump - Except NQZ

Pin

Wire Color

Circuit No.

Function

A

GY

120

Fuel Pump Supply Voltage

B

BK

2150

Ground

Fuel Rail Pressure (FRP) Sensor
Object Number: 1331443 Size: CH

Connector Part Information

  • OEM: 1 928 403 968
  • Service: 88988595
  • Description: 3-Way F Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 1928498054/Delphi 8
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: J-38125-561/J-35616-35 (VT)

Fuel Rail Pressure (FRP) Sensor

Pin

Wire Color

Circuit No.

Function

1

WH

2919

Low Reference

2

OG/BK

2918

FRP Sensor Signal

3

D-BU

2917

5-Volt Reference

Fuel Rail Temperature (FRT) Sensor
Object Number: 784094 Size: CH

Connector Part Information

  • OEM: 178392-6
  • Service: See Catalog
  • Description: 2-Way F 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

Fuel Rail Temperature (FRT) Sensor

Pin

Wire Color

Circuit No.

Function

1

YE

1578

Fuel Temperature Signal

2

BN

6062

Low Reference

Glow Plug Control Module (GPCM) C1
Object Number: 1366585 Size: CH

Connector Part Information

  • OEM: 15443870
  • Service: 88987604
  • Description: 1-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

Glow Plug Control Module (GPCM) C1

Pin

Wire Color

Circuit No.

Function

1

BK/WH

1042

Battery Positive Voltage

Glow Plug Control Module (GPCM) C2
Object Number: 1576764 Size: CH

Connector Part Information

  • OEM: 897386-6110
  • Service: 97386611
  • Description: 53-Way F MLK 1.2/SLK 2.8 Series, Sealed (BK)

Terminal Part Information

  • Pins: 1-4, 6-9
  • Terminal/Tray: 2 21 24 47297 0/27
  • Core/Insulation Crimp: 4/C/1
  • Release Tool/Test Probe: 15314260/J-35616-4A (PU)
  • Pins: 26-31, 43-46, 51-53
  • Terminal/Tray: 2 21 24 61420 0/15
  • Core/Insulation Crimp: K/K
  • Release Tool/Test Probe: J-38125-24/J-35616-16 (L-GN)

Glow Plug Control Module (GPCM) C2

Pin

Wire Color

Circuit No.

Function

1

RD/WH

HB13

Glow Plug 3 Supply Voltage

2

WH/GN

HB12

Glow Plug 2Supply Voltage

3

RD/GN

HB11

Glow Plug 1 Supply Voltage

4

WH/YE

HB14

Glow Plug 4 Supply Voltage

5

--

--

Not Used

6

WH/D-BU

HB18

Glow Plug 8 Supply Voltage

7

RD/L-GN

HB15

Glow Plug 5 Supply Voltage

8

WH/L-GN

HB16

Glow Plug 6 Supply Voltage

9

RD/D-BU

HB17

Glow Plug 7 Supply Voltage

10-25

--

--

Not Used

26

YE

IC182

IAH Command 2

27

RD

IC185

IAH Feedback Signal

28

BK

IC180

IAH Temperature Signal

29

PK

IC183

IAH Current Signal

30

TN

IC184

IAH Voltage Signal

31

OG

IC181

IAH Command 1

32-42

--

--

Not Used

43

TN

2501

High Speed GMLAN Serial Data Bus - (M/T)

L-BU

6106

High Speed GMLAN Serial Data Bus - (A/T)

44

TN/BK

2501

High Speed GMLAN Serial Data Bus + (M/T)

44

D-BU

6105

High Speed GMLAN Serial Data Bus + (A/T)

45-50

--

--

Not Used

51

RD

HB03

Ground

52

PK

239

Ignition 1 Voltage

53

WH

1020

Ignition 0 Voltage

Intake Air Heater (IAH) Module
Object Number: 1583743 Size: CH

Connector Part Information

  • OEM: DT16-6S-K002
  • Service: See Catalog
  • Description: 6-Way F, Sealed (GN)

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 Heater (IAH) Module

Pin

Wire Color

Circuit No.

Function

1

BK

IC180

IAH Temperature Signal

2

OG

IC181

IAH Command 1

3

YE

IC182

IAH Command 2

4

PK

IC183

IAH Current Status

5

TN

IC184

IAH Voltage Signal

6

RD

IC185

IAH Feedback Signal

Intake Air Temperature (IAT) Sensor 2
Object Number: 1578317 Size: CH

Connector Part Information

  • OEM: 7183-7020-10
  • Service: See Catalog
  • Description: 2-Way F, Sealed (D-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

Intake Air Temperature (IAT) Sensor 2

Pin

Wire Color

Circuit No.

Function

A

L-BU

6118

IAT Sensor 2 Signal

B

YE/BK

6120

Low Reference

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

Connector Part Information

  • OEM: 12129945
  • Service: See Catalog
  • Description: 3-Way F Metri-pack 150 Series, Sealed (GY)

Terminal Part Information

  • Terminal/Tray: 12048074/Delphi 2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-14 (GN)

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

Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Object Number: 655786 Size: CH

Connector Part Information

  • OEM: 15324447
  • Service: 88953157
  • Description: 5-Way F 090 II Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 7116-4025/11
  • Core/Insulation Crimp:Pins 1-2, 4-5: E/A
  • Core/Insulation Crimp:Pins 3: E/1
  • Release Tool/Test Probe: 15313892/J-35616-18 (BK)

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

Pin

Wire Color

Circuit No.

Function

1

BK

552

Low Reference

2

TN

472

IAT Sensor Signal

3

PK

439

Ignition 1 Voltage

4

GY/BK

2931

Low Reference

5

YE

492

MAF Sensor Signal

Turbocharger Vane Position Control Solenoid Valve
Object Number: 1366580 Size: CH

Connector Part Information

  • OEM: PR-IA066070097
  • 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

Turbocharger Vane Position Control Solenoid Valve

Pin

Wire Color

Circuit No.

Function

A

D-BU

5930

Turbocharger Vane Position Control Solenoid High Control

B

WH

5931

Turbocharger Vane Position Control Solenoid Low Control

Turbocharger Vane Position Sensor
Object Number: 1556303 Size: CH

Connector Part Information

  • OEM: 12191366
  • Service: 88988603
  • Description: 4-Way F Metri-Pack 150 Series, Sealed (L-GY)

Terminal Part Information

  • Terminal/Tray: 12160223/Delphi 3
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-14 (GN)

Turbocharger Vane Position Sensor

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

YE

5947

Turbocharger Vane Position Sensor Signal

C

OG/BK

5929

Low Reference

D

TN

5928

5-Volt Reference