GM Service Manual Online
For 1990-2009 cars only
Table 1: Accelerator Pedal Position (APP) Sensor Connector
Table 2: Boost Pressure Sensor Connector
Table 3: Crankshaft Position Sensor Connector
Table 4: Engine Coolant Temperature (ECT) Sensor Connector
Table 5: Engine (Fuel) Shut off Solenoid Connector
Table 6: Fuel Heater Connector
Table 7: Fuel Lift Pump Connector
Table 8: Fuel Solenoid Driver Connector
Table 9: Glow Plug Relay Connector-Federal
Table 10: Ignition Timing Stepper Motor Connector
Table 11: Intake Air Temperature (IAT) Sensor Connector
Table 12: Optical Fuel Temperature Sensor Connector
Table 13: Vehicle Speed Sensor (VSS) Connector
Table 14: Vehicle Speed Sensor (VSSB) Buffer
Table 15: Wastegate Solenoid Connector
Table 16: Water In Fuel Sensor Connector

Accelerator Pedal Position (APP) Sensor Connector


Object Number: 666638  Size: CH

Connector Part Information

    • 12177081
    • ASM 10F M/P 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

1273

Low Reference

B

PPL

1272

Low Reference

C

LT BLU

1162

APP Sensor 2 Signal

D

TAN

1274

5 Volt Reference

E

YEL/BLK

1275

5 Volt Reference

F

DK BLU

1161

APP Sensor 1 Signal

G

WHT/BLK

1164

5 Volt Reference

H

--

--

Not Used

J

BRN

1271

Low Reference

K

DK GRN

1163

APP Sensor 3 Signal

Boost Pressure Sensor Connector


Object Number: 280779  Size: CH

Connector Part Information

    • 12103771
    • ASM 3M W/P TWR (WHT)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Low Reference

B

LT GRN

432

Boost Sensor Signal

C

GRY

416

5 Volt Reference

Crankshaft Position Sensor Connector


Object Number: 684807  Size: CH

Connector Part Information

    • 12110293
    • ASM 3F M/P 150 SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

573

CKP Sensor Signal

B

PPL

574

Low Reference

C

GRY

416

5 Volt Reference

Engine Coolant Temperature (ECT) Sensor Connector


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • ASM 2F M/P 150.2 P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

410

ECT Sensor Signal

B

BLK

470

Low Reference

Engine (Fuel) Shut off Solenoid Connector


Object Number: 537107  Size: CH

Connector Part Information

    • 12052644
    • ASM 2F M/P 150 (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU/

WHT

259

Engine Shut Off Control

B

PNK

239

Ignition 1 Voltage

Fuel Heater Connector


Object Number: 537107  Size: CH

Connector Part Information

    • 12052644
    • ASM 2F M/P 150 (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

PNK

539

Ignition 1 Voltage

Fuel Lift Pump Connector


Object Number: 258174  Size: CH

Connector Part Information

    • 12059473
    • ASM 2M W/P SHD (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

GRY

120

Fuel Pump Supply Voltage

Fuel Solenoid Driver Connector


Object Number: 697046  Size: CH

Connector Part Information

    • 12186568
    • ASM 4F M/P 150 SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

260

Fuel Injection Control

B

BLK

491

Low Reference

C

PNK

239

Ignition 1 Voltage

D

RED

313

Injection Pump Timing Signal

Glow Plug Relay Connector-Federal


Object Number: 62433  Size: CH

Connector Part Information

    • 12045636
    • CONN 4F M/P 280 SLD (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

PNK

339

Ignition 1 Voltage

B

YEL

505

Glow Plug Relay Control

C

BLK

550

Ground

D

--

--

Not Used

Ignition Timing Stepper Motor Connector


Object Number: 38608  Size: CH

Connector Part Information

    • 12162189
    • ASM 4F M/P 150.2 P2S SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN/BLK

1030

ITS Coil 1 Low

B

ORN/BLK

1032

ITS Coil 2 Low

C

YEL/BLK

1033

ITS Coil 2 High

D

RED/BLK

1031

ITS Coil 1 High

Intake Air Temperature (IAT) Sensor Connector


Object Number: 646180  Size: CH

Connector Part Information

    • 12162198
    • ASM 2F M/P 150.2 P2S SLD (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

TAN

472

IAT Sensor Signal

B

BLK

470

Low Reference

Optical Fuel Temperature Sensor Connector


Object Number: 697039  Size: CH

Connector Part Information

    • 12052848
    • ASM 6F M/P 150 SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

474

5 Volt Reference

B

BRN/WHT

633

CMP Sensor Signal

C

ORN

1799

High Resolution Signal

D

PNK/BLK

632

Low Reference

E

YEL

1578

Fuel Temperature Signal

F

PNK/BLK

632

Low Reference

Vehicle Speed Sensor (VSS) Connector


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • ASM 2F M/P 150.2 P2S SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

VSS High Signal

B

LT GRN/

BLK

822

VSS Low Signal

Vehicle Speed Sensor (VSSB) Buffer


Object Number: 62467  Size: CH

Connector Part Information

    • 12066130
    •  CONN 9F MIC/P 100 (NAT)

Pin

Wire Color

Circuit No.

Function

7

LT GRN/

BLK

822

VSS Low Signal

8

BLK/WHT

451

Ground

9

PNK

39

Ignition 1 Voltage

10

YEL/BLK

1827

Vehicle Speed Signal

11

--

--

Not Used

12

PPL/WHT

821

VSS High Signal

13

BRN

437

Vehicle Speed Signal

14

DK GRN/

WHT

817

Vehicle Speed Signal

15

DK GRN

389

Vehicle Speed Signal

Wastegate Solenoid Connector


Object Number: 635009  Size: CH

Connector Part Information

    • 12052641
    • ASM 2F M/P 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

339

Ignition 1 Voltage

B

YEL

258

Wastegate Solenoid Control

Water In Fuel Sensor Connector


Object Number: 684807  Size: CH

Connector Part Information

    • 12110293
    • ASM 3F M/P 150 SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

539

Fuse Output - Ignition 1 - Type III Fuse

B

YEL/BLK

508

Water In Fuel Indicator Lamp Output

C

BLK

150

Ground