GM Service Manual Online
For 1990-2009 cars only
Table 1: Accelerator Pedal Position (APP) Sensor
Table 2: Barometric Pressure (BARO) Sensor
Table 3: Boost Pressure Sensor
Table 4: Camshaft Position (CMP) Sensor
Table 5: Crankshaft Position (CKP) Sensor
Table 6: Engine Coolant Temperature (ECT) Sensor
Table 7: Exhaust Gas Recirculation (EGR) Valve
Table 8: Fuel Heater
Table 9: Fuel Injection Control Module (FICM) Connector C1
Table 10: Fuel Injection Control Module (FICM) Connector C2
Table 11: Fuel Injector 1
Table 12: Fuel Injector 2
Table 13: Fuel Injector 3
Table 14: Fuel Injector 4
Table 15: Fuel Injector 5
Table 16: Fuel Injector 6
Table 17: Fuel Injector 7
Table 18: Fuel Injector 8
Table 19: Fuel Pump - Secondary
Table 20: Fuel Pump Relay - Secondary
Table 21: Fuel Rail Pressure (FPR) Regulator
Table 22: Fuel Rail Pressure (FRP) Sensor
Table 23: Fuel Rail Temperature (FRT) Sensor
Table 24: Glow Plug Control Module (GPCM) C1
Table 25: Glow Plug Control Module (GPCM) C2
Table 26: High Idle Switch (UF3)
Table 27: Manifold Absolute Pressure (MAP) Sensor
Table 28: Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor
Table 29: Turbocharger Vane Position (TVP) Control Solenoid Valve
Table 30: Turbocharger Vane Position (TVP) Sensor

Accelerator Pedal Position (APP) Sensor


Object Number: 632344  Size: CH

Connector Part Information

    • 15326842
    • 10-Way F GT 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

D-GN

1163

APP Sensor 3 Signal

B

YE/BK

1275

5-Volt Reference

C

--

--

Not Used

D

WH/BK

1164

5-Volt Reference

E

D-BU

1161

APP Sensor 1 Signal

F

GY

1273

Low Reference

G

PU

1272

Low Reference

H

L-BU

1162

APP Sensor 2 Signal

J

TN

1274

5-Volt Reference

K

BN

1271

Low Reference

Barometric Pressure (BARO) Sensor


Object Number: 684840  Size: CH

Connector Part Information

    • 12129946
    • 3-Way F Metri-Pack 150 Series Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

OG/BK

1057

Low Reference

B

GY/BK

433

BARO Sensor Signal

C

WH/BK

2932

5-Volt Reference

Boost Pressure Sensor


Object Number: 684840  Size: CH

Connector Part Information

    • 12129946
    • 3-Way F Metri-Pack 150 Series Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

OG/BK

469

Low Reference

B

L-GN

432

Boost Sensor Signal

C

GY

597

5-Volt Reference

Camshaft Position (CMP) Sensor


Object Number: 1366572  Size: CH

Connector Part Information

    • 6248-5317
    • 3-Way F Sealed (GY)

Pin

Wire Color

Circuit No.

Function

1

BN/WH

633

CMP Sensor Signal

2

PK/BK

632

Low Reference

3

RD

631

12-Volt Reference

Crankshaft Position (CKP) Sensor


Object Number: 1366572  Size: CH

Connector Part Information

    • 6248-5317
    • 3-Way F Sumitomo, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

1

D-BU/WH

1869

CKP Sensor Signal

2

YE/BK

1868

Low Reference

3

L-GN

1867

12-Volt Reference

Engine Coolant Temperature (ECT) Sensor


Object Number: 646176  Size: CH

Connector Part Information

    • 12162195
    • 2-Way F Metri-Pack 150.2 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

GY

720

Low Reference

B

YE

410

ECT Sensor Signal

Exhaust Gas Recirculation (EGR) Valve


Object Number: 1366573  Size: CH

Connector Part Information

    • 6195-0021
    • 6-Way F Sumitomo DL Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

PU

2703

5-Volt Reference

B

YE/BK

2754

Low Reference

C

L-BU/WH

5763

EGR Sensor Signal

D

PK

5764

Ignition 1 Voltage

E

--

--

Not Used

F

WH

5746

Low Reference

Fuel Heater


Object Number: 1428179  Size: CH

Connector Part Information

    • 7118-3320-30
    • 2-Way M Yazaki, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

PK

239

Ignition 1 Voltage

B

BK

50

Ground

Fuel Injection Control Module (FICM) Connector C1


Object Number: 743315  Size: CH

Connector Part Information

    • 1928403454
    • 81-Way F Bosch Series (BK)

Pin

Wire Color

Circuit No.

Function

1

L-GN/WH

IC18

Fuel Injector 4 Command

2

BK/YE

IZ17

Ground

3

OG

IC13

Ignition Voltage

4

RD/L-GN

IC15

Fuel Injector 1 Command

5

PK

IZ20

Ignition 1 Voltage

6-43

--

--

Not Used

44

L-BU/BK

IC108

Fuel Injector 4 Control

45

BK/WH

IC104

Fuel Injector 5 Control

46

--

--

Not Used

47

PK/BK

IC106

Fuel Injector 3 Control

48

RD/BK

IC102

Fuel Injector 7 Control

49-58

--

--

Not Used

59

D-BU/WH

IC20

Fuel Injector 6 Command

60

D-BU/WH

IC520

Fuel Injector 6 Command

61

WH/RD

IC21

Fuel Injector 7 Command

62

WH/RD

IC521

Fuel Injector 7 Command

63

D-BU/WH

IC107

Fuel Injector 8 Control

64

YE/BK

IC105

Fuel Injector 6 Control

65

--

--

Not Used

66

BK

IC103

Fuel Injector 1 Control

67

L-GN/BK

IC101

Fuel Injector 2 Control

68-81

--

--

Not Used

Fuel Injection Control Module (FICM) Connector C2


Object Number: 743317  Size: CH

Connector Part Information

    • 1928403462
    • 40-Way F Bosch Series (BK)

Pin

Wire Color

Circuit No.

Function

82-90

--

--

Not Used

91

YE

2361

CAN Serial Data High

92

L-GN

2362

CAN Serial Data Low

93

--

--

Not Used

94

L-BU

IC301

Engine Speed Signal

95-113

--

--

Not Used

114

BK/GN

IZ18

Ground

115

WH/L-BU

IC17

Fuel Injector 3 Command

116

RD/L-GN

IC19

Fuel Injector 5 Command

117

--

--

Not Used

118

RD/WH

IC60

Ignition Voltage

119

PK

IZ21

Ignition Voltage

120

WH/GN

IC22

Fuel Injector 8 Command

121

WH/YE

IC16

Fuel Injector 2 Command

Fuel Injector 1


Object Number: 784092  Size: CH

Connector Part Information

    • 1 928 403 874
    • 2-Way F BOSCH®, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

L-GN/RD

IC15

Fuel Injector 1 Command

2

OG/BK

IC13

Injector Supply Voltage

Fuel Injector 2


Object Number: 784092  Size: CH

Connector Part Information

    • 1 928 403 874
    • 2-Way F BOSCH®, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

WH/YE

IC16

Fuel Injector 2 Command

2

RD/WH

IC14

Injector Supply Voltage

Fuel Injector 3


Object Number: 784092  Size: CH

Connector Part Information

    • 1 928 403 874
    • 2-Way F BOSCH®, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

WH/BU

IC17

Fuel Injector 3 Command

2

RD/WH

IC60

Injector Supply Voltage

Fuel Injector 4


Object Number: 784092  Size: CH

Connector Part Information

    • 1 928 403 874
    • 2-Way F BOSCH®, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

WH/L-GN

IC18

Fuel Injector 4 Command

2

OG

IC62

Injector Supply Voltage

Fuel Injector 5


Object Number: 784092  Size: CH

Connector Part Information

    • 1 928 403 874
    • 2-Way F BOSCH®, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

RD/L-GN

IC19

Fuel Injector 5 Command

2

RD/WH

IC61

Injector Supply Voltage

Fuel Injector 6


Object Number: 784092  Size: CH

Connector Part Information

    • 1 928 403 874
    • 2-Way F BOSCH®, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

D-BU/WH

IC20

Fuel Injector 6 Command

2

OG

IC64

Injector Supply Voltage

Fuel Injector 7


Object Number: 784092  Size: CH

Connector Part Information

    • 1 928 403 874
    • 2-Way F BOSCH®, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

WH/RD

IC21

Fuel Injector 7 Command

2

OG

IC63

Injector Supply Voltage

Fuel Injector 8


Object Number: 784092  Size: CH

Connector Part Information

    • 1 928 403 874
    • 2-Way F BOSCH®, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

WH/GN

IC22

Fuel Injector 8 Command

2

RD/WH

IC65

Injector Supply Voltage

Fuel Pump - Secondary


Object Number: 68721  Size: CH

Connector Part Information

    • 12059450
    • 2-Way F Metri-Pack 280 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

350

Ground

B

GY

120

Fuel Pump Supply Voltage

Fuel Pump Relay - Secondary


Object Number: 535912  Size: CH

Connector Part Information

    • 12129716
    • 4-Way F Metri-Pack 280 Series Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

30

GY

120

Fuel Pump Supply Voltage

85

TN

1465

Fuel Pump Relay Control - Secondary

86

GY

120

Fuel Pump Supply Voltage

87

L-GN

1058

Fuel Balance Pump Supply Voltage

Fuel Rail Pressure (FPR) Regulator


Object Number: 1366587  Size: CH

Connector Part Information

    • 12059450
    • 3-Way M (BK)

Pin

Wire Color

Circuit No.

Function

1

PU/WH

2530

Fuel Pressure Regulator Solenoid Supply Voltage

2

YE

2834

Fuel Pressure Solenoid Control

3

BK

--

Shielded Ground

Fuel Rail Pressure (FRP) Sensor


Object Number: 1331443  Size: CH

Connector Part Information

    • 1 928 403 968
    • 3-Way F BOSCH®, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

OG/BK

2919

Low Reference

2

YE

2918

FRP Sensor Signal

3

TN

2917

5-Volt Reference

Fuel Rail Temperature (FRT) Sensor


Object Number: 784094  Size: CH

Connector Part Information

    • 178392-6
    • 2-Way F AMP, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

1

YE

1578

Fuel Temperature Signal

2

BN

718

Low Reference

Glow Plug Control Module (GPCM) C1


Object Number: 1366585  Size: CH

Connector Part Information

    • 15443870
    • 1-Way F Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

BK

1042

Battery Positive Voltage

Glow Plug Control Module (GPCM) C2


Object Number: 1366583  Size: CH

Connector Part Information

    • 60412601
    • 12-Way F Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

RD/L-GN

-

Glow Plug 1 Supply Voltage

2

WH/GN

-

Glow Plug 2 Supply Voltage

3

RD/WH

-

Glow Plug 3 Supply Voltage

4

WH/YE

-

Glow Plug 4 Supply Voltage

5

PK

239

Ignition 1 Voltage

6

D-GN

2362

SAE J1939 Serial Data Bus (-)

7

RD/L-GN

-

Glow Plug 5 Supply Voltage

8

WH/L-GN

-

Glow Plug 6 Supply Voltage

9

RD/BU

-

Glow Plug 7 Supply Voltage

10

WH/BU

-

Glow Plug 8 Supply Voltage

11

PK/YE

-

Ground

12

YE

2361

SAE J1939 Serial Data Bus (+)

High Idle Switch (UF3)


Object Number: 304345  Size: CH

Connector Part Information

    • 12177195
    • 6-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

750

Ground

B

BK

750

Ground

C

D-GN

534

High Idle Switch Signal

D

BN

441

Ignition 3 Voltage

E

BN

2509

Left Rear Park Lamps Supply Voltage/Left Rear Park Lamps

F

RD

2013

High Idle Indicator Control

Manifold Absolute Pressure (MAP) Sensor


Object Number: 684840  Size: CH

Connector Part Information

    • 12129945
    • 3-Way F Metri-Pack 150 Series, Sealed (GY)

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 3

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


Object Number: 655786  Size: CH

Connector Part Information

    • 15324447
    • 5-Way F Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

BK

552

Low Reference

2

TN

472

IAT Sensor Signal

3

PK

239

Ignition 1 Voltage

4

GY/BK

2931

Low Reference

5

YE

492

MAF Sensor Signal

Turbocharger Vane Position (TVP) Control Solenoid Valve


Object Number: 1366580  Size: CH

Connector Part Information

    • PR-1A020070097
    • 2-Way F Amphenol, Sealed (WH)

Pin

Wire Color

Circuit No.

Function

A

D-BU

5930

Turbocharger Vane Position Control Solenoid Valve Control Circuit

B

WH

5931

Turbocharger Vane Position Control Solenoid Valve Low Reference

Turbocharger Vane Position (TVP) Sensor


Object Number: 1366574  Size: CH

Connector Part Information

    • 12186568
    • 4-Way F Metri-Pack 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

OG/BK

5928

5-Volt Reference

B

TN

5929

Low Reference

C

YE

5947

Turbocharger Vane Position Sensor Signal

D

--

--

Not Used