GM Service Manual Online
For 1990-2009 cars only
Table 1: Camshaft Position (CMP) Sensor
Table 2: Crankshaft Position (CKP) Sensor
Table 3: Engine Coolant Temperature (ECT) Sensor
Table 4: Evaporative Emissions (EVAP) Canister Purge Solenoid Valve
Table 5: Fuel Injector 1
Table 6: Fuel Injector 2
Table 7: Fuel Injector 3
Table 8: Fuel Injector 4
Table 9: Fuel Pump/Sender
Table 10: Idle Air Control (IAC) Sensor
Table 11: Ignition Coil (IC) Module
Table 12: Intake Air Temperature (IAT) Sensor
Table 13: Knock Sensor (KS)
Table 14: Manifold Absolute Pressure (MAP) Sensor
Table 15: Octane Selection Switch
Table 16: Oxygen (O2) Sensor
Table 17: Throttle Position (TP) Sensor
Table 18: Engine Control Module (ECM) - A
Table 19: Engine Control Module (ECM) - B

Camshaft Position (CMP) Sensor


Object Number: 1467004  Size: CH

Connector Part Information

    • AMP 85205-1
    • 3-Way JR Power Timer 3P Housing Assembly (BK)

Pin

Wire Color

Circuit No.

Function

1

L-BU/BK

1748

Camshaft Position (CMP) Sensor Signal

2

L-BU

52

Camshaft Position (CMP) Sensor Return

3

BN

1733

Ignition 1 Voltage

Crankshaft Position (CKP) Sensor


Object Number: 1467004  Size: CH

Connector Part Information

    • AMP 85205-1
    • 3-Way JR Power Timer 3P Housing Assembly (BK)

Pin

Wire Color

Circuit No.

Function

1

D-BU/WH

1869

Low Reference

2

YE/BK

1868

Crankshaft Position (CKP) Sensor Signal

3

BK/WH

51

Ground

Engine Coolant Temperature (ECT) Sensor


Object Number: 62426  Size: CH

Connector Part Information

    • PED 12040753
    • 2-Way F Metri-Pack 150 Series Sealed, Pull To Seat (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN

410

Engine Coolant Temperature (ECT) Sensor Signal

B

GN

808

Low Reference

Evaporative Emissions (EVAP) Canister Purge Solenoid Valve


Object Number: 684795  Size: CH

Connector Part Information

    • PED 12052643
    • 2-Way F Metri-Pack 150 Series Sealed (RD)

Pin

Wire Color

Circuit No.

Function

A

WH

452

EVAP Canister Purge Solenoid Control

B

BN

1733

Ignition 1 Voltage

Fuel Injector 1


Object Number: 1466998  Size: CH

Connector Part Information

    • AMP 368468-1
    • 2-Way Injector Plug Assembly (BK)

Pin

Wire Color

Circuit No.

Function

1

BN

1733

Ignition 1 Voltage

2

BN/BK

1747

Fuel Injector 1 Control

Fuel Injector 2


Object Number: 1466998  Size: CH

Connector Part Information

    • AMP 368468-1
    • 2-Way Injector Plug Assembly (BK)

Pin

Wire Color

Circuit No.

Function

1

BN

1733

Ignition 1 Voltage

2

L-GN

1746

Fuel Injector 2 Control

Fuel Injector 3


Object Number: 1466998  Size: CH

Connector Part Information

    • AMP 368468-1
    • 2-Way Injector Plug Assembly (BK)

Pin

Wire Color

Circuit No.

Function

1

BN

1733

Ignition 1 Voltage

2

BN/WH

1745

Fuel Injector 3 Control

Fuel Injector 4


Object Number: 1466998  Size: CH

Connector Part Information

    • AMP 368468-1
    • 2-Way Injector Plug Assembly (BK)

Pin

Wire Color

Circuit No.

Function

1

BN

1733

Ignition 1 Voltage

2

YE

1744

Fuel Injector 4 Control

Fuel Pump/Sender


Object Number: 1468528  Size: CH

Connector Part Information

    • AMP 936039
    • 6-Way FUEL PUMP 6POS Connector Assembly (BN)

Pin

Wire Color

Circuit No.

Function

1

GY

1936

Fuel Level Sensor Signal

2

BK

850

Ground

3

BN

1723

Fuel Pump Supply Voltage

4

BK

850

Ground

5

PU

172

Low Fuel Indicator Control

6

L-BU

1937

Low Reference

Idle Air Control (IAC) Sensor


Object Number: 38608  Size: CH

Connector Part Information

    • PED 12040754
    • 4-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

D-GN

415

Idle Air Control (IAC) B Low Control

B

L-GN

417

Idle Air Control (IAC) B High Control

C

WH/D-BU

533

Idle Air Control (IAC) A Low Control

D

L-GN

534

Idle Air Control (IAC) A High Control

Ignition Coil (IC) Module


Object Number: 516611  Size: CH

Connector Part Information

    • PED 12059595
    • 3-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

OG

423

Ignition Coil (IC) 2 and 3 Control

B

PK

539

Ignition 1 Voltage

C

WH

406

Ignition Coil (IC) 1 and 4 Control

Intake Air Temperature (IAT) Sensor


Object Number: 1467003  Size: CH

Connector Part Information

    • AMP 85202-1
    • 2-Way JR Power Timer 2P Housing Assembly (BK)

Pin

Wire Color

Circuit No.

Function

1

L-BU

468

Intake Air Temperature (IAT) Sensor Signal

2

D-GN

808

Low Reference

Knock Sensor (KS)


Object Number: 1466993  Size: CH

Connector Part Information

    • AMP 368215-1
    • 3-Way F JPT 3P Assembly for Knock Sensor (GY)

Pin

Wire Color

Circuit No.

Function

1

YE/BK

496

Knock Sensor (KS)

2

GY/BK

1876

Low Reference

3

D-GN

808

Low Reference

Manifold Absolute Pressure (MAP) Sensor


Object Number: 516611  Size: CH

Connector Part Information

    • PED 12059595
    • 3-Way F Metri-Pack 150 Series Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

WH

433

Low Reference

B

BN

432

Manifold Absolute (MAP) Pressure Sensor Signal

C

L-BU

469

5-Volt Reference

Octane Selection Switch


Object Number: 73223  Size: CH

Connector Part Information

    • PED 12162185
    • 3-Way F Metri-Pack 150.2 Series Sealed, Pull To Seat (WH)

Pin

Wire Color

Circuit No.

Function

A

PU

890

Octane Selection Switch

B

BK/WH

51

Ground

C

GY

892

Octane Selection Switch

Oxygen (O2) Sensor


Object Number: 309480  Size: CH

Connector Part Information

    • PED 12010501
    • 2-Way F Weather Pack Tower Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

WH

428

Oxygen (O2) Sensor Signal

B

D-BU/BK

429

Oxygen (O2) Sensor Low Reference

Throttle Position (TP) Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • PED 12078090
    • 3-Way F Metri-Pack 150 Series (WH)

Pin

Wire Color

Circuit No.

Function

A

PU

427

5-Volt Reference

B

D-BU

426

Low Reference

C

WH

425

Throttle Position (TP) Sensor Signal

Engine Control Module (ECM) - A


Object Number: 1481265  Size: CF

Connector Part Information

    • PED 12129231
    • 32-Way Retainer Lock (BK)

Pin

Wire Color

Circuit No.

Function

A1

BK/WH

51

Ground

A2

BK/WH

51

Ground

A3

YE/BK

496

Knock Sensor (KS) Signal

A4-A5

--

--

Not Used

A6

YE/BK

1868

Crankshaft Position (CKP) Sensor Signal

A7

WH

425

Throttle Position (TP) Sensor Signal

A8

BN/WH

1745

Injector 3 Control

A9

BN/BK

1747

Injector 1 Control

A10

L-BU

52

Camshaft Position (CMP) Sensor Return

A11

L-GN

410

Engine Coolant (ECT) Temperature

A12

D-BU/BK

429

Oxygen Sensor (O2) Low Reference

A13

L-GN

417

Idle Air Control (IAC) B High Control

A14

--

--

Not Used

A15

PU

427

5-Volt Reference

A16

WH

732

EVAP Canister Vent Solenoid Control

A17

BK/WH

51

Ground

A18

OG

423

Ignition Coil 2 and 3 Control

A19

WH

406

Ignition Coil 1 and 4 Control

A20

WH

452

EVAP Canister Purge Valve Solenoid Control

A21

D-BU/WH

1869

Low Reference

A22

L-GN

1746

Fuel Injector 2 Control

A23

L-BU

468

Intake Air Temperature (IAT) Sensor Signal

A24

BN

432

Manifold Absolute Pressure (MAP) Sensor Signal

A25

L-BU/BK

1748

Camshaft Position (CMP) Sensor Signal

A26

YE

1744

Injector 4 Control

A27

WH

428

Oxygen Sensor (O2) Signal

A28

L-GN

534

Idle Air Control (IAC) A High Control

A29

D-GN

415

Idle Air Control (IAC) B Low Control

A30

WH/D-BU

533

Idle Air Control (IAC) A Low Control

A31

L-BU

469

5-Volt Reference

A32

GY/BK

1876

Low Reference

Engine Control Module (ECM) - B


Object Number: 1468388  Size: CF

Connector Part Information

    • PED 12129232
    • 32-Way Retainer Lock (CL)

Pin

Wire Color

Circuit No.

Function

B1

L-BU

1937

Low Reference

B2

OG

440

Battery Positive Voltage

B3

PK

1739

Ignition 1 Voltage

B4-B6

--

--

Not Used

B7

L-BU

203

A/C Pressure Sensor Signal

B8

GY

892

Octane Selection Switch

B9

GY

121

Engine Speed Signal

B10

D-GN/WH

762

A/C Request Signal

B11

BN/BK

821

Overspeed Warning Signal

B12

GY

473

High Speed Cooling Fan Control

B13

--

--

Not Used

B14

PU

1807

CAN Serial Data High

B15

BK/WH

2051

Keyword Serial Data

B16

--

--

Not Used

B17

L-BU

469

5-Volt Reference

B18

OG

440

Battery Positive Voltage

B19

GY

1936

Fuel Level Sensor Signal

B20-B21

--

--

Not Used

B22

PU

890

Octane Selection Switch

B23

D-GN

817

Vehicle Speed Sensor (VSS) Signal

B24

WH

135

Engine Coolant Temperature (ECT) Gage Control

B25

--

--

Not Used

B26

YE/D-BU

497

Fuel Pump Relay Control

B27

GY

355

Low Speed Cooling Fan Relay Control

B28

D-GN

67

A/C Clutch Relay Control

B29

--

--

Not Used

B30

YE

710

Can Serial Data Low

B31

WH

30

Fuel Gage Control

B32

BN

419

MIL Control