GM Service Manual Online
For 1990-2009 cars only
Table 1: Accelerator Pedal Position Module Connector (Diesel)
Table 2: Boost Pressure Sensor
Table 3: Crankshaft Position (CKP) Sensor Connector
Table 4: EGR Pressure Sensor
Table 5: EGR Valve Solenoid
Table 6: Engine Shutoff Solenoid
Table 7: Intake Air Temperature (IAT) Sensor Connector
Table 8: Mass Air Flow (MAF) Sensor Connector
Table 9: Engine Temperature Switch
Table 10: Fuel Heater
Table 11: Fuel Pump and Sender
Table 12: VSS Buffer Connector
Table 13: Wastegate Solenoid
Table 14: Water in Fuel (WIF) Sensor
Table 15: Glow Plug Relay Connector
Table 16: Vehicle Speed Sensor (VSS) Adapter
Table 17: Vehicle Speed Sensor (VSS) Adapter

Accelerator Pedal Position Module Connector (Diesel)


Object Number: 280766  Size: CH

Connector Part Information

    • 12065425
    • ASM 10F M/P 150 (BLACK)

Pin

Wire Color

Circuit No.

Function

A

BRN

1271

APP 1 Ground

B

PPL

1272

APP 2 Ground

C

LT BLU

1162

APP 2 Signal

D

TAN

1274

5 Volt Reference APP 2

E

YEL/BLK

1275

5 Volt Reference APP 3

F

DK BLU

1161

APP 1 Signal

G

WHT/BLK

1164

5 Volt Reference APP 1

H

--

--

Not Used

J

GRY

1273

APP 3 Ground

K

DK GRN

1163

APP 3 Signal

Boost Pressure Sensor


Object Number: 280779  Size: CH

Connector Part Information

    • 12103771
    • 3 Way M Weather-Pack TWR Series (WHT)

Pin

Wire Color

Circuit No.

Function

A

BLK

452

Boost Pressure Sensor - Return

B

LT GRN

432

Boost Pressure Sensor - Signal

C

GRY

416

Reference Voltage Feed - 5 Volt

Crankshaft Position (CKP) Sensor Connector


Object Number: 62453  Size: CH

Connector Part Information

    • 12059595
    • 3F M/P 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

643

Fuse Output - Ignition 1 - Type III Fuse

B

BLK

452

CKP Sensor Return

C

GRY

416

Reference Voltage

EGR Pressure Sensor


Object Number: 307053  Size: CH

Connector Part Information

    • 12020403
    • ASM 3M M/P 100 (GRN)

Pin

Wire Color

Circuit No.

Function

A

BLK

452

Sensor Return

B

GRY/BLK

433

Barometric Pressure Sensor

C

GRY

416

Reference Voltage Feed

EGR Valve Solenoid


Object Number: 35437  Size: CH

Connector Part Information

    • 12052641
    • ASM CONN 2F M/P 100 (BLACK)

Pin

Wire Color

Circuit No.

Function

A

PNK

539

Ignition Fused Feed

B

WHT

257

EGR Vent Solenoid Output

B

GRY

435

EGR Vent Solenoid Output

Engine Shutoff Solenoid


Object Number: 35437  Size: CH

Connector Part Information

    • 12052644
    • 2 Way F Metri-Pack 150 Series (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU/WHT

259

Engine Shutoff Solenoid - Output

B

PNK

439

Fused Ignition Feed

Intake Air Temperature (IAT) Sensor Connector


Object Number: 68719  Size: CH

Connector Part Information

    • 12162198
    • 2F M/P 150 (GRAY)

Pin

Wire Color

Circuit No.

Function

A

TAN

472

IAT Sensor Signal

B

BLK

452

IAT Sensor Return

Mass Air Flow (MAF) Sensor Connector


Object Number: 62453  Size: CH

Connector Part Information

    • 12059595
    • 3F M/P 150 (BLACK)

Pin

Wire Color

Circuit No.

Function

A

YEL

492

MAF Sensor Signal

B

BLK/WHT

451

VCM Ground

C

PNK

539

Fuse Output - Ignition 1 - Type III Fuse

Engine Temperature Switch


Object Number: 333039  Size: CH

Connector Part Information

    • 12089499
    • 1F M/P 150 (BLU)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

35

Coolant Temperature Indicator lamp Output

B

--

--

Not Used

Fuel Heater


Object Number: 309547  Size: CH

Connector Part Information

    • 12015793
    • 3 Way M Weather-Pack (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

550

Ground

B

--

--

Not Used

C

PNK

1039

Fused Ignition Feed

Fuel Pump and Sender


Object Number: 258174  Size: CH

Connector Part Information

    • 12010973
    • 2M W/P SHD SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

451

Engine Control Module Ground

B

DK BLU/WHT

970

Fuel Pump Motor Feed

VSS Buffer Connector


Object Number: 62467  Size: CH

Connector Part Information

    • 12066130
    • CONN 9F M/P 100 (NATURAL)

Pin

Wire Color

Circuit No.

Function

7

LT GRN/BLK

822

VSS Return

8

BLK/WHT

451

ECM Ground

9

PNK

39

Fuse Output - Ignition 1 - Type III Fuse

10

YEL/BLK

1827

VSS Signal - 12800 Pulses Per Mile

11

--

--

Not Used

12

PPL/WHT

821

VSS Signal

13

BRN

437

VSS Signal

14

DK GRN/WHT

817

VSS Signal - 4000 Pulses Per Mile

15

DK GRN

389

VSS Signal - 4000 Pulses Per Mile

Wastegate Solenoid


Object Number: 35437  Size: CH

Connector Part Information

    • 12052641
    • 2 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

539

Fused Ignition Feed

B

YEL

258

Waste Gate Solenoid Output

Water in Fuel (WIF) Sensor


Object Number: 309547  Size: CH

Connector Part Information

    • 12015793
    • 3 Way M Weather-Pack (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

539

Fused Ignition Feed

B

YEL/BLK

508

Water in Fuel Indicator Lamp Output

C

BLK

150

Ground

Glow Plug Relay Connector


Object Number: 307055  Size: CH

Connector Part Information

    • 12045636
    • CONN 4F M/P 280 (MEDIUM GRAY)

Pin

Wire Color

Circuit No.

Function

A

PNK

539

Fuse Output - Ignition 1 - Type III Fuse

B

YEL

505

Glow Plug Relay Feed

C

BLK

150

Ground

D

--

--

Not Used

Vehicle Speed Sensor (VSS) Adapter


Object Number: 637318  Size: CF

Connector Part Information

    • 12162194
    • 2-Way F Metri-Pack 280 Series, Sealed (BLK)

Connector Part Information

    • 12160435
    • 2-Way M-to-M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High

A

LT GRN/BLK

822

VSS Low

B

LT GRN/BLK

822

VSS Low

B

PPL/WHT

821

VSS High

Vehicle Speed Sensor (VSS) Adapter


Object Number: 637318  Size: CF

Connector Part Information

    • 12162194
    • 2-Way F Metri-Pack 280 Series, Sealed (BLK)

Connector Part Information

    • 12160435
    • 2-Way M-to-M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High

A

LT GRN/BLK

822

VSS Low

B

LT GRN/BLK

822

VSS Low

B

PPL/WHT

821

VSS High