GM Service Manual Online
For 1990-2009 cars only
Table 1: Accelerator Pedal Position (APP) Sensor
Table 2: Camshaft Position (CMP) Sensor
Table 3: Crankshaft Position (CKP) Sensor
Table 4: Engine Controls Power Relay K43
Table 5: Engine Coolant Temperature (ECT) Sensor
Table 6: Evaporative (EVAP) Purge Solenoid Valve
Table 7: Evaporative (EVAP) Tank Solenoid Valve
Table 8: Fuel Injector #1
Table 9: Fuel Injector #2
Table 10: Fuel Injector #3
Table 11: Fuel Injector #4
Table 12: Fuel Injector #5
Table 13: Fuel Injector #6
Table 14: Fuel Pump
Table 15: Fuel Pump Relay K44
Table 16: Fuel Tank Pressure Sensor
Table 17: Heated Oxygen Sensor (Bank 1, Position 1)
Table 18: Heated Oxygen Sensor (Bank 2, Position 1)
Table 19: Heated Oxygen Sensor (Bank 2, Position 2)
Table 20: Heated Oxygen Sensor (Bank 1, Position 2)
Table 21: LH Ignition Coil
Table 22: RH Ignition Coil
Table 23: Intake Plenum Switch-Over Solenoid Valve
Table 24: Intake Resonance Switch-Over Solenoid Valve
Table 25: Knock Sensor (Bank 1)
Table 26: Knock Sensor (Bank 2)
Table 27: Mass Air Flow (MAF) Sensor
Table 28: Secondary Air Injection Pump
Table 29: Secondary Air Injection Pump Relay K12
Table 30: Secondary Air Injection Pump Solenoid Valve
Table 31: Throttle Position (TP) Sensor

Accelerator Pedal Position (APP) Sensor


Object Number: 416305  Size: CH

Connector Part Information

    • ZF 9-34
    • 9 Way F (BLU)

Pin

Wire Color

Circuit No.

Function

1

BRN/RED

XA40

Pedal Position 2 Signal Return

2

BRN/GRY

XR24

Pedal Position 1 Reference Ground

3

--

--

NOT USED

4

BLK/GRY

FR56

Pedal Position 1 5V Reference

5

BRN/BLK

XF8

Pedal Position 1 Signal Return

6

BRN/GRN

XU800

Ground

7

--

--

NOT USED

8

BRN/GRN

XU800

Pedal Position 2 5V Reference

9

--

--

NOT USED

Camshaft Position (CMP) Sensor


Object Number: 193751  Size: CH

Connector Part Information

    • ZFW 3-28
    • 3 Way F (BLK)

Pin

Wire Color

Circuit No.

Function

1

BRN/GRN

XU306

Sensor Ground

2

WHT

M381

CMP Sensor Signal Output

3

RED/BLU

AP800

Switched Battery Positive Voltage

Crankshaft Position (CKP) Sensor


Object Number: 193742  Size: CH

Connector Part Information

    • ZFW 3-25
    • 3 Way F (BLK)

Pin

Wire Color

Circuit No.

Function

1

GRY/BLK

RF78

CKP Signal High Output

2

GRY/RED

RA20

CKP Signal Low Output

3

BLK

S03

Shielded Ground

Engine Controls Power Relay K43


Object Number: 193830  Size: CH

Connector Part Information

ZF 9-31

Pin

Wire Color

Circuit No.

Function

1

--

--

NOT USED

2

RED

A71

Fused Battery Feed

3

--

--

NOT USED

4

RED

A73

Fused Battery Feed

5

--

--

NOT USED

6

BRN/GRY

XR31

Relay K43 Control

7

--

--

NOT USED

8

RED/BLU

AP75

Switched B+ From Relay K43

9

--

--

NOT USED

Engine Coolant Temperature (ECT) Sensor


Object Number: 193747  Size: CH

Connector Part Information

    • ZFW 2-83
    • 2 Way F (BLK)

Pin

Wire Color

Circuit No.

Function

1

BRN/BLU

XP74

ECT Sensor Signal

2

BRN/GRN

XU715

Sensor Ground

Evaporative (EVAP) Purge Solenoid Valve


Object Number: 193754  Size: CH

Connector Part Information

    • ZFW 2-83
    • 2 Way F (BLK)

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP108

B+ From Relay K43

2

BRN/RED

XA61

EVAP Purge Solenoid Valve Control

Evaporative (EVAP) Tank Solenoid Valve


Object Number: 193754  Size: CH

Connector Part Information

    • ZFW 2-83
    • 2 Way F (BLK)

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP1

B+ From Relay K43

2

BRN/BLK

XF1

EVAP Tank Solenoid Valve Control

Fuel Injector #1


Object Number: 193700  Size: CH

Connector Part Information

ZFW 2-44

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP61

B+ From Relay K43

2

BRN/YEL

XB17

Fuel Injector #1 Control

Fuel Injector #2


Object Number: 193700  Size: CH

Connector Part Information

ZFW 2-44

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP63

B+ From Relay K43

2

BRN/GRN

XU16

Fuel Injector #2 Control

Fuel Injector #3


Object Number: 193700  Size: CH

Connector Part Information

ZFW 2-44

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP64

B+ From Relay K43

2

BRN/BLU

XP35

Fuel Injector #3 Control

Fuel Injector #4


Object Number: 193700  Size: CH

Connector Part Information

ZFW 2-44

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP62

B+ From Relay K43

2

BRN/RED

XA34

Fuel Injector #4 Control

Fuel Injector #5


Object Number: 193700  Size: CH

Connector Part Information

ZFW 2-44

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP65

B+ From Relay K43

2

BRN/BLK

XF15

Fuel Injector #5 Control

Fuel Injector #6


Object Number: 193700  Size: CH

Connector Part Information

ZFW 2-44

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP66

B+ From Relay K43

2

BRN/PPL

XY33

Fuel Injector #6 Control

Fuel Pump


Object Number: 194347  Size: CH

Connector Part Information

ZFW 5-3

Pin

Wire Color

Circuit No.

Function

A

RED/BLU

AP10

B+ From FUEL PUMP Fuse

B

BLK

F224

Ground to G103

C

BLK

F30

Ground to G400

D

BLU/BLK

PF11

Fuel Level Signal

E

Not Used

Fuel Pump Relay K44


Object Number: 193830  Size: CH

Connector Part Information

ZF 9-31

Pin

Wire Color

Circuit No.

Function

1

--

--

NOT USED

2

RED

A72

Fused Battery Feed

3

--

--

NOT USED

4

RED/BLU

AP76

B+ From Relay K43

5

--

--

NOT USED

6

BRN/BLU

XR3

Relay Control Signal

7

--

--

NOT USED

8

RED/BLU

AP77

B+ Feed to FUEL PUMP Fuse

9

--

--

NOT USED

Fuel Tank Pressure Sensor


Object Number: 193742  Size: CH

Connector Part Information

    • ZFW 3-20
    • 3 Way F

Pin

Wire Color

Circuit No.

Function

1

BLU/BLK

PF1

5V Reference

2

BRN/GRN

XU1

Sensor Ground

3

BRN/YEL

XB1

Fuel Pressure Sensor Signal

Heated Oxygen Sensor (Bank 1, Position 1)


Object Number: 415927  Size: CH

Connector Part Information

ZFW 6-15

Pin

Wire Color

Circuit No.

Function

1

BRN/RED

XA43

Lambda Sensor Pump Current Input

2

BRN/BLU

XP19

HO2S Signal

3

BRN/WHT

XM30

HO2S Reference Ground

4

BRN/GRY

XR11

HO2S Heater Control

5

RED/BLU

AP122

Fused Battery Feed

6

BRN/GRN

XU462

Lambda Sensor Pump Current Output

Heated Oxygen Sensor (Bank 2, Position 1)


Object Number: 415927  Size: CH

Connector Part Information

ZFW 6-15

Pin

Wire Color

Circuit No.

Function

1

BRN/RED

XA610

Lambda Sensor Pump Current Input

2

BRN/BLU

XP18

HO2S Signal

3

BRN/WHT

XM309

HO2S Reference Ground

4

BRN/GRY

XR61

HO2S Heater Control

5

RED/BLU

AP124

Fused Battery Feed

6

BRN/GRN

XU464

Lambda Sensor Pump Current Output

Heated Oxygen Sensor (Bank 2, Position 2)


Object Number: 193714  Size: CH

Connector Part Information

ZFW 4-2

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP950

Fused Battery Feed

2

BRN/WHT

XM950

HO2S Heater Control

3

BRN/GRN

XU960

HO2S Reference Ground

4

BRN/BLU

XP960

HO2S Signal

Heated Oxygen Sensor (Bank 1, Position 2)


Object Number: 193714  Size: CH

Connector Part Information

ZFW 4-2

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP951

Fused Battery Feed

2

BRN/WHT

XM951

HO2S Heater Control

3

BRN/GRN

XU950

HO2S Reference Ground

4

BRN/BLU

XP961

HO2S Signal

LH Ignition Coil


Object Number: 415926  Size: CH

Connector Part Information

    • ZFW 6-11
    • 6 Way F BOSCH (BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK

F60

Ground

2

BRN

X69

Switched Ignition Feed

3

GRY/BLK

RF51

Cyl. 6 Ignition Control

4

BLK/YEL

FB61

Cyl. 4 Ignition control

5

BLK/RED

FA71

Cyl. 2 Ignition Control

6

--

--

NOT USED

RH Ignition Coil


Object Number: 415923  Size: CH

Connector Part Information

    • ZFW 6-7
    • 6 Way F BOSCH (BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK

F50

Ground

2

BRN

X68

Switched Ignition Feed

3

GRY/BLK

RF50

Cyl. 5 Ignition Control

4

BLK/YEL

FB60

Cyl. 3 Ignition Control

5

BLK/RED

FA70

Cyl. 1 Ignition Control

6

--

--

NOT USED

Intake Plenum Switch-Over Solenoid Valve


Object Number: 193759  Size: CH

Connector Part Information

ZFW 2-40

Pin

Wire Color

Circuit No.

Function

1

BRN/GRN

XU35

Intake Plenum Switch-Over Solenoid Valve Control

2

RED/BLU

AP105

B+ From Relay K43

Intake Resonance Switch-Over Solenoid Valve


Object Number: 193724  Size: CH

Connector Part Information

ZFW 2-40

Pin

Wire Color

Circuit No.

Function

1

BRN/GRN

XU7

Intake Resonance Switch-Over Solenoid Valve Control

2

RED/BLU

AP104

B+ From Relay K43

Knock Sensor (Bank 1)


Object Number: 193747  Size: CH

Connector Part Information

ZFW 2-83

Pin

Wire Color

Circuit No.

Function

1

BRN/WHT

XM70

KS Bank 1 Signal

2

BRN/GRN

XU420

KS Reference Ground

Knock Sensor (Bank 2)


Object Number: 193747  Size: CH

Connector Part Information

ZFW 2-83

Pin

Wire Color

Circuit No.

Function

1

BRN/WHT

XM40

KS Bank 2 Signal

2

BRN/GRN

XU410

KS Reference Ground

Mass Air Flow (MAF) Sensor


Object Number: 415930  Size: CH

Connector Part Information

    • ZFW 5-7
    • 5 Way F BOSCH (BLK)

Pin

Wire Color

Circuit No.

Function

1

BRN/BLK

XF30

IAT Sensor Signal

2

RED/BLU

AP84

B+ From Relay K43

3

BRN/GRN

XU304

Sensor Ground

4

BLU/BLK

PF107

5 V Reference

5

GRY/RED

RA40

MAF Sensor Signal

Secondary Air Injection Pump


Object Number: 194299  Size: CH

Connector Part Information

ZFW 2-24

Pin

Wire Color

Circuit No.

Function

A

PPL

Y110

Pump ON Signal

B

BLK

F110

Ground to G104

Secondary Air Injection Pump Relay K12


Object Number: 193830  Size: CH

Connector Part Information

ZF 9-32

Pin

Wire Color

Circuit No.

Function

1

--

--

NOT USED

2

PPL

Y110

Pump ON Signal

3

--

--

NOT USED

4

RED/BLU

AP200

B+ From Relay K43

5

BLK

F200

Ground to G103

6

BRN/GRY

XR200

Relay Control

7

--

--

NOT USED

8

RED

A730

Fused Battery Feed

9

--

--

NOT USED

Secondary Air Injection Pump Solenoid Valve


Object Number: 193700  Size: CH

Connector Part Information

ZFW 2-35

Pin

Wire Color

Circuit No.

Function

1

RED/BLU

AP952

B+ From Relay K43

2

BRN/YEL

XB952

Solenoid Valve Control

Throttle Position (TP) Sensor


Object Number: 415922  Size: CH

Connector Part Information

    • ZFW 6-10
    • 6 Way F AMP (BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK/WHT

FM10

Throttle Valve Motor Ground

2

BRN/GRN

XU30

Sensor Ground

3

BLU/BLK

PF102

5 V Reference

4

BRN/YEL

XB10

Throttle Valve Motor Power

5

BRN/BLU

XP53

TP Sensor 2 Signal

6

WHT

M24

TP Sensor 1 Signal