GM Service Manual Online
For 1990-2009 cars only
Table 1: Air Pump
Table 2: Air Pump Solenoid
Table 3: Coolant Level Switch
Table 4: Cooling Fan Motor
Table 5: Crankshaft Position Sensor
Table 6: Electronic Ignition Module
Table 7: Engine Coolant Temperature Sensor
Table 8: Evaporative Canister Vent Valve
Table 9: Evaporative Canister Vent Valve
Table 10: EVO Solenoid
Table 11: Fuel Injectors
Table 12: Fuel Tank Pressure Sensor
Table 13: Fuel Tank Unit
Table 14: Generator
Table 15: Idle Air Control
Table 16: Ignition Switch
Table 17: Intake Air Temperature Sensor
Table 18: Knock Sensor (SOHC - L24)
Table 19: Knock Sensor (DOHC - LL0)
Table 20: Knock Sensor (SOHC)
Table 21: Linear EGR Solenoid
Table 22: Manifold Absolute Pressure (MAP) Sensor (SOHC - L24)
Table 23: Manifold Absolute Pressure (MAP) Sensor (DOHC - LL0)
Table 24: Oil Pressure Switch
Table 25: Oxygen Sensor
Table 26: Powertrain Control Module (PCM) Engine - J1
Table 27: Powertrain Control Module (PCM) Engine - J2
Table 28: Throttle Position Sensor (TPS)
Table 29: Vehicle Speed Sensor (VSS)

Air Pump


Object Number: 884185  Size: CH

Connector Part Information

    • 12191968
    • GRY

Pin

Wire Color

Circuit No.

Function

A

RED

78

Air Pump Relay

B

BLK

651

Ground

Air Pump Solenoid


Object Number: 884187  Size: CH

Connector Part Information

    • 12105333
    • BRN

Pin

Wire Color

Circuit No.

Function

1

PNK/BLK

429

PCM

2

PNK

639

Engine Emission Fuse

Coolant Level Switch


Object Number: 884168  Size: CH

Connector Part Information

    • 12052641
    • BRN

Pin

Wire Color

Circuit No.

Function

A

YEL/BLK

68

Low Coolant Level Output

B

PNK

239

Coolant Level Switch

Cooling Fan Motor


Object Number: 884370  Size: CH

Connector Part Information

    • 12103172
    • GRY

Pin

Wire Color

Circuit No.

Function

A

BLK

650

Ground

B

LT BLU

409

UHFM Cooling Fan Relay

Crankshaft Position Sensor


Object Number: 884374  Size: CH

Connector Part Information

    • 12052642
    • GRN

Pin

Wire Color

Circuit No.

Function

A

PPL

574

7X Ref - LO

B

YEL

573

7X Ref - HI

Electronic Ignition Module


Object Number: 884554  Size: CH

Connector Part Information

    • 12160397
    • GRN

Pin

Wire Color

Circuit No.

Function

A

PNK

1039

UHFB EIS Fuse - Ignition

B

BLK/WHT

451

Rear Engine - Ground

C

ORN

406

PCM - EXT 2-3 IN

D

BRN/WHT

633

PCM - Camshaft Position HI IN

E

WHT

423

PCM - EST 1-4 IN

Engine Coolant Temperature Sensor


Object Number: 884560  Size: CH

Connector Part Information

    • 12092512
    • BLK

Pin

Wire Color

Circuit No.

Function

A

YEL

410

PCM - Coolant Temperature IN

B

BLK

452

PCM - Coolant Temperature Return

Evaporative Canister Vent Valve


Object Number: 884567  Size: CH

Connector Part Information

    • 12052643
    • RED

Pin

Wire Color

Circuit No.

Function

A

PNK

339

IPFB Cruise 1 Fuse

B

WHT

1310

I/P to Body Inline to PCM

Evaporative Canister Vent Valve


Object Number: 884567  Size: CH

Connector Part Information

    • 12052643
    • RED

Pin

Wire Color

Circuit No.

Function

A

PNK

639

UHFB - Engine Emissions

B

DK GRN/WHT

428

PCM - Control Canister Purge Out

EVO Solenoid


Object Number: 884567  Size: CH

Connector Part Information

    • 12052643
    • RED

Pin

Wire Color

Circuit No.

Function

A

BRN

1295

PCM - EVO LO

B

WHT

1294

PCM - EVO HI

Fuel Injectors


Object Number: 884581  Size: CH

Connector Part Information

    • Injectors 1 & 2
    • 15326181
    • BLK

Pin

Wire Color

Circuit No.

Function

A

PNK

139

UHFB Injector Fuse - B+ (Injector 1)

UHFB Injector Fuse - B+ (Injector 2)

B

BLK

LT GRN/BLK

1744

1745

PCM Injector 1

PCM Injector 2


Object Number: 884581  Size: CH

Connector Part Information

    • Injectors 3 & 4
    • 15326181
    • BLK

Pin

Wire Color

Circuit No.

Function

A

PNK

139

UHFB Injector Fuse - B+ (Injector 3)

UHFB Injector Fuse - B+ (Injector 4)

B

PNK/BLK

LT BLU/BLK

1746

844

PCM Injector 3

PCM Injector 4

Fuel Tank Pressure Sensor


Object Number: 884592  Size: CH

Connector Part Information

    • 12059595
    • BLK

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

469

IPFB Return

B

DK GRN

890

I/P to Body Inline - PCM

C

GRY

416

I/P to Body Inline - 5 Volt Reference

Fuel Tank Unit


Object Number: 884600  Size: CH

Connector Part Information

    • 12162189
    • BLK

Pin

Wire Color

Circuit No.

Function

A

GRY

120

Fuel Tank Inline - Feed

B

BLK/WHT

251

Fuel Tank Inline - Level Sensor

C

PPL

30

Fuel Tank Inline - Level Sensor

D

BLK

550

Rear Ground Splice Pack - Ground

Generator


Object Number: 884606  Size: CH

Connector Part Information

    • 15305338
    • BLK

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

BRN/WHT

25

PCM - Battery Charge TT

C-D

--

--

Not Used

Idle Air Control


Object Number: 884727  Size: CH

Connector Part Information

    • 12162190
    • BLK

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

444

IAC B LO OUT

B

LT GRN/WHT

1749

IAN B HI OUT

C

LT BLU/BLK

1748

IAC A LO OUT

D

LT BLU/WHT

1747

IAC A HI OUT

Ignition Switch


Object Number: 884744  Size: CH

Connector Part Information

    • 12064998
    • BLK

Pin

Wire Color

Circuit No.

Function

A

RED

102

UHFB - Ignition 3 Fuse

B

ORN

300

IPFB - Ignition 3 Output

C

YEL

5

UHFB - Crank Output Clutch Switch - Crank Output

D

LT GRN

80

BCM - Key Minder Switch Signal

E

BLK

350

Ground - I/P Splice Pack #2

F

PNK

3

IPFB - Airbag Output

G

BRN

4

IPFB - Wiper Output

H

RED

202

UHFB - Ignition 1/4 Fuse

Intake Air Temperature Sensor


Object Number: 884560  Size: CH

Connector Part Information

    • 12092512
    • BLK

Pin

Wire Color

Circuit No.

Function

A

TAN

472

PCM - Air Temperature Intake

B

BLK

452

PCM - Air Temperature SRT Intake

Knock Sensor (SOHC - L24)


Object Number: 884813  Size: CH

Connector Part Information

    • 15336514
    • BLK

Pin

Wire Color

Circuit No.

Function

A

DK BLU

496

Knock Sensor Signal

B

LT BLU

1876

Knock Sensor Return

Knock Sensor (DOHC - LL0)


Object Number: 884421  Size: CH

Connector Part Information

    • 12077900
    • BLK

Pin

Wire Color

Circuit No.

Function

A

DK BLU

496

Knock Sensor Signal

B

LT BLU

1876

Knock Sensor Return

Knock Sensor (SOHC)


Object Number: 884421  Size: CH

Connector Part Information

    • 15336514
    • BLK

Pin

Wire Color

Circuit No.

Function

A

DK BLU

496

PCM - Knock Sensor Signal

B

LT BLU

1876

PCM - Knock Sensor Return

Linear EGR Solenoid


Object Number: 884992  Size: CH

Connector Part Information

    • 12186057
    • BLK

Pin

Wire Color

Circuit No.

Function

A

LT BLU

697

Linear EGR Solenoid Control

B

BLK

452

Return to PCM

C

BRN

1456

Linear EGR Feedback Signal

D

GRY

416

5 Volt Reference

E

PNK

639

Ignition Feed

Manifold Absolute Pressure (MAP) Sensor (SOHC - L24)


Object Number: 884994  Size: CH

Connector Part Information

    • 12020403
    • GRN

Pin

Wire Color

Circuit No.

Function

A

BLK

452

PCM - MAP Return

B

LT GRN

432

PCM - MAP Signal

C

GRY

416

PCM - MAP Battery

Manifold Absolute Pressure (MAP) Sensor (DOHC - LL0)


Object Number: 884996  Size: CH

Connector Part Information

    • 12129946
    • BLK

Pin

Wire Color

Circuit No.

Function

A

BLK

452

PCM - MAP Return

B

LT GRN

432

PCM - MAP Signal

C

GRY

416

PCM - MAP Battery

Oil Pressure Switch


Object Number: 884159  Size: CH

Connector Part Information

    • 12052644
    • GRY

Pin

Wire Color

Circuit No.

Function

A

TAN

31

PCM - Oil Pressure Switch

B

--

--

Not Used

Oxygen Sensor


Object Number: 885003  Size: CH

Connector Part Information

    • 12089916
    • GRY

Pin

Wire Color

Circuit No.

Function

A

PPL

412

Signal

Powertrain Control Module (PCM) Engine - J1


Object Number: 885038  Size: CH

Connector Part Information

    • 15336796 (Auto)
        15336797 (Man)
    • BLK

Pin

Wire Color

Circuit No.

Function

1

DK BLU

417

Throttle Position Sensor - In

2

TAN

472

Air Temperature Sensor - In

3

LT GRN

432

Manifold Absolute Pressure Sensor - In

4

BRN

1456

Linear EGR - In

5

PPL/WHT

1668

Rear O2 - Hi - In

6

--

--

Not Used

7

DK BLU

496

Knock Sensor - In

8

YEL

573

Crank Position Sensor - 7X Hi - In

9

TAN

413

Front O2 - Lo - In

10

TAN

413

Rear O2 - Lo - In

11

GRY

416

Manifold Absolute Pressure Sensor - +5 Volts

12

BLK

452

Throttle Position Sensor - Return

13

WHT

1579

Oil Change Reset

14

--

--

Not Used

15

YEL

772

Selector Switch - B1 (Auto)

16-17

--

--

Not Used

18

PPL

898

Transaxle - 4th Out (Auto)

19-21

--

--

Not Used

22

BRN

1295

EVO - Lo

23

GRY

416

EGR + 5 Volts

24

--

--

Not Used

25

ORN/BLK

586

Transaxle Oil Temperature Sensor - In (Auto)

26

BRN/WHT

633

Camshaft Position - HI

27

PPL

401

Vehicle Speed Sensor - Lo

28

LT BLU

1876

Knock Sensor - Return

29

BLK

452

Air Temperature Sensor - Return

30

PPL

574

Crank Position Sensor - 7X Lo

31

BLK/WHT

771

Selector Switch - B0 (Auto)

32

BLK

452

Manifold Absolute Pressure Sensor - Return

33

DK BLU/WHT

1231

Turbine Speed Sensor - Lo (Auto)

34

YEL/BLK

68

Coolant Level

35

RED/BLK

1230

Turbine Speed Sensor - Hi (Auto)

36

WHT

776

Selector Switch - B3 (Auto)

37-38

--

--

Not Used

39

TAN/BLK

422

Transaxle - TCC Out (Auto)

40

LT GRN

1222

Transaxle - 2nd Out (Auto)

41

GRY

474

Throttle Position Sensor - + 5 Volts

42

LT GRN/BLK

444

Idle Air Control - B Lo - Out

43

LT BLU/BLK

1748

Idle Air Control - A Lo - Out

44

WHT

1294

EVO - Hi

45

LT GRN/WHT

1749

Idle Air Control - B Hi - Out

46

WHT

423

Electronic Ignition Module

47

--

--

Not Used

48

BLK

452

Coolant Temperature Sensor - Return

49-50

--

--

Not Used

51

TAN

31

Oil Pressure Sensor

52

GRY

773

Selector Switch - B2 (Auto)

53

BLK

452

Linear EGR - Return

54

YEL

410

Coolant Temperature Sensor In

55

TAN/WHT

551

Power Ground - Engine Ground Rear (Auto)

56

TAN/WHT

551

Power Ground - Engine Ground Rear

57

PNK/BLK

1746

Injector #3

58

--

--

Not Used

59

YEL/BLK

1223

Transaxle - 3rd Out (Auto)

60

DK BLU

1530

Transaxle - Main Line Pressure - Out (Auto)

61

RED

1676

Linear EGR - Power

62

BRN/WHT

25

Generator

63

LT BLU

697

Linear EGR - Out

64

LT BLU/WHT

1747

Idle Air Control - A Hi - Out

65

ORN

406

Electronic Ignition Module - EST 2-3 Out

66

BLK

452

Transaxle Fluid Sensor - Temperature Return (Auto)

67

PNK/BLK

429

UHFB - Air Solenoid

68

DK GRN

335

UHFB - Cooling Fan Relay Control

69

--

--

Not Used

70

BRN

436

UHFB - Air Pump

71

PPL

412

Front Oxygen Sensor - Hi - In

72

YEL

400

Vehicle Speed Sensor - Hi - In

73

--

--

Not Used

74

DK GRN/WHT

428

Evaporator Emission Purge Solenoid - Out

75

BLK/WHT

1423

Heated O2

76

TAN/WHT

551

Power Ground - Engine Ground Rear

77

TAN/WHT

551

Power Ground - Engine Ground Rear (Auto)

78

LT BLU/BLK

844

Injector #4

79

BLK

1744

Injector #1

80

LT GRN/BLK

1745

Injector #2

Powertrain Control Module (PCM) Engine - J2


Object Number: 885040  Size: CH

Connector Part Information

    • 15336786
    • GRN

Pin

Wire Color

Circuit No.

Function

1

ORN

1140

UHFB - PCM B Fuse

2

GRY

416

I/P to Body Inline - Fuel Tank Pressure Sensor - + 5 Volt

3

GRY

1884

Roll Connector - Cruise Resume/Accel

4-6

--

--

Not Used

7

PPL

30

I/P to Body Inline - Fuel Level - In

8

GRN

1140

UHFB - PCM B Fuse

9

--

--

Not Used

10

DK GRN

890

I/P to Body Inline - Fuel Tank Pressure Sensor - In

11

PPL

1807

Cluster - Class 2

12

PPL

1807

EBTCM - Class 2 (ABS)/Body Control Module - Class 2 (Non-ABS)

13

LT BLU

1888

Cruse Control Module - Cruse Clutch

14

WHT

1310

I/P to Body Inline - EVAP Emission Vent Solenoid - Out

15

ORN/BLK

469

IPFB - Fuel Tank Pressure Sensor - Return

16

--

--

Not Used

17

BLK/WHT

251

I/P to Body Inline - Fuel Level Return

18

--

--

Not Used

19

LT GRN

1887

Cruise Control Module

20

--

--

Not Used

21

GRY

729

UHFB - A/C Clutch Relay

22

--

--

Not Used

23

PNK

439

UHFB - Ignition

24

--

--

Not Used

25

DK GRN/WHT

465

IPFB - Fuel Pump

26

BRN

86

Brake Pedal Switch

27

--

--

Not Used

28

PNK

1886

Cruise Control Module

Throttle Position Sensor (TPS)


Object Number: 884592  Size: CH

Connector Part Information

    • 12092512
    • BLK

Pin

Wire Color

Circuit No.

Function

A

BLK

452

PCM - TPS Return at PCM

B

DK BLU

417

PCM - TPS In at PCM

C

GRY

474

PCM - 5 Volt Battery

Vehicle Speed Sensor (VSS)


Object Number: 884159  Size: CH

Connector Part Information

    • 12052644
    • GRY

Pin

Wire Color

Circuit No.

Function

A

YEL

400

PCM - VSS Signal Lo

B

PPL

401

PCM - VSS Signal Hi