GM Service Manual Online
For 1990-2009 cars only
Connector 1: Accelerator Pedal Position (APP) Sensor
Connector 2: Ambient Air Temperature Sensor
Connector 3: Camshaft Position (CMP) Sensor
Connector 4: Camshaft Position (CMP) Actuator Solenoid Valve
Connector 5: Clutch Pedal Position (CPP) Switch
Connector 6: Crankshaft Position (CKP) Sensor
Connector 7: Data Link Connector (DLC)
Connector 8: Engine Coolant Temperature (ECT) Sensor
Connector 9: EVAP Purge Solenoid Valve
Connector 10: EVAP System Vacuum Leak Pump
Connector 11: Fuel Injector 1
Connector 12: Fuel Injector 2
Connector 13: Fuel Injector 3
Connector 14: Fuel Injector 4
Connector 15: Fuel Sender Assembly
Connector 16: Heated Oxygen Sensor (HO2S) 1
Connector 17: Heated Oxygen Sensor (HO2S) 2
Connector 18: Ignition Coil 1
Connector 19: Ignition Coil 2
Connector 20: Ignition Coil 3
Connector 21: Ignition Coil 4
Connector 22: Knock Sensor (KS)
Connector 23: Mass Air Flow (MAF) Sensor
Connector 24: Noise Filter
Connector 25: Throttle Actuator Control (TAC) Module
Connector 26: Vehicle Speed Sensor (VSS) (ABS)

Accelerator Pedal Position (APP) Sensor


Object Number: 334913  Size: CH

Connector Part Information

  • OEM: 90980-11858
  • Service: N/A
  • Description: BK

Accelerator Pedal Position (APP) Sensor

Pin

Wire

Function

1

YE

Low Reference

2

WH

APP Sensor™2 Signal

3

YE

Low Reference

4

BK

5-Volt Reference

5

GN

APP Sensor 1 Signal

6

BK

5-Volt Reference

Ambient Air Temperature Sensor


Object Number: 334404  Size: CH

Connector Part Information

  • OEM: 90980-11030
  • Service: N/A
  • Description: BK

Ambient Air Temperature Sensor

Pin

Wire

Function

1

BK

Ambient Air Temperature Sensor Input

2

BK/BU

Ground

Camshaft Position (CMP) Sensor


Object Number: 339853  Size: CH

Connector Part Information

  • OEM: 90980-10947
  • Service: N/A
  • Description: BK

Camshaft Position (CMP) Sensor

Pin

Wire

Function

1

BK

Camshaft Position Input

2

WH

Sensor Ground

Camshaft Position (CMP) Actuator Solenoid Valve


Object Number: 820095  Size: CH

Connector Part Information

  • OEM: 90980-11162
  • Service: N/A
  • Description: BN

Camshaft Position (CMP) Actuator Solenoid Valve

Pin

Wire

Function

1

YE

CMP Actuator High Control

2

BK/YE

CMP Actuator Low Control

Clutch Pedal Position (CPP) Switch


Object Number: 820095  Size: CH

Connector Part Information

  • OEM: 90980-10825
  • Service: N/A
  • Description: WH

Clutch Pedal Position (CPP) Switch

Pin

Wire

Function

1

RD

Ignition Positive Voltage Circuit

2

BK

CPP Signal Circuit

Crankshaft Position (CKP) Sensor


Object Number: 339853  Size: CH

Connector Part Information

  • OEM: 90980-10947
  • Service: N/A
  • Description: GY

Crankshaft Position (CKP) Sensor

Pin

Wire

Function

1

BK

Crankshaft Position Input

2

WH

Sensor Ground

Data Link Connector (DLC)


Object Number: 1548125  Size: CH

Connector Part Information

  • OEM: 15488184
  • Service: 19115029
  • Description: 16-Way F Metri-Pack 150 Series (BK)

Data Link Connector (DLC)

Pin

Wire

Function

1

--

Not Used

2

PK

Class 2 Serial Data-Radio

3

--

Not Used

4

WH/BK

Ground

5

BN

Ground

6

RD

CAN High

7

D-BU/RD

Serial Data Line

8-11

--

Not Used

12

GY

BPMV

13

PK/BK

Diagnostic Request

14

WH

CAN Low

15

PK

BPMV Serial Data

16

RD/BK

Battery Positive Voltage

Engine Coolant Temperature (ECT) Sensor


Object Number: 820010  Size: CH

Connector Part Information

  • OEM: 90980-10737
  • Service: N/A
  • Description: D-GY

Engine Coolant Temperature (ECT) Sensor

Pin

Wire

Function

1

BN

Sensor Ground

2

WH

ECT Input

EVAP Purge Solenoid Valve


Object Number: 339854  Size: CH

Connector Part Information

  • OEM: 90980-11156
  • Service: N/A
  • Description: BU

EVAP Purge Solenoid Valve

Pin

Wire

Function

1

BU/BK

EVAP Control Circuit

2

BK

EVAP Feed Circuit

EVAP System Vacuum Leak Pump


Object Number: 1489449  Size: CH

Connector Part Information

  • OEM: 90980-12380
  • Service: N/A
  • Description: BK

EVAP System Vacuum Leak Pump

Pin

Wire

Function

1

GY

Vacuum Pump Control

2

BN

Sensor Ground

3

BU

Fuel Tank Pressure (FTP) Input

4

YE

5-Volt Reference

5

--

Not Used

6

WH/BK

Ground

7

--

Not Used

8

RD

EVAP Vent Solenoid Control

9

BK

EVAP Vent Solenoid Supply Voltage

10

--

Not Used

Fuel Injector 1


Object Number: 334996  Size: CH

Connector Part Information

  • OEM: 90980-11875
  • Service: N/A
  • Description: GY

Fuel Injector 1

Pin

Wire

Function

1

BK/WH

Fuel Injector 1 Feed Circuit

2

YE

Fuel Injector 1 Control Circuit

Fuel Injector 2


Object Number: 334996  Size: CH

Connector Part Information

  • OEM: 90980-11875
  • Service: N/A
  • Description: GY

Fuel Injector 2

Pin

Wire

Function

1

BK/WH

Fuel Injector 2 Feed Circuit

2

BK

Fuel Injector 2 Control Circuit

Fuel Injector 3


Object Number: 334996  Size: CH

Connector Part Information

  • OEM: 90980-11875
  • Service: N/A
  • Description: GY

Fuel Injector 3

Pin

Wire

Function

1

BK/WH

Fuel Injector 3 Feed Circuit

2

WH

Fuel Injector 3 Control Circuit

Fuel Injector 4


Object Number: 334996  Size: CH

Connector Part Information

  • OEM: 90980-11875
  • Service: N/A
  • Description: GY

Fuel Injector 4

Pin

Wire

Function

1

BK/WH

Fuel Injector 4 Control Circuit

2

BU

Fuel Injector 4 Feed Circuit

Fuel Sender Assembly


Object Number: 334997  Size: CH

Connector Part Information

  • OEM: 90980-11077
  • Service: N/A
  • Description: WH

Fuel Sender Assembly

Pin

Wire

Function

1

--

Not Used

2

YE

Fuel Gage

3

BN

Low Fuel Indicator

4

BK/RD

Fuel Pump Feed Circuit

5

WH/BK

Ground

Heated Oxygen Sensor (HO2S) 1


Object Number: 335001  Size: CH

Connector Part Information

  • OEM: 90980-10869
  • Service: N/A
  • Description: D-GY

Heated Oxygen Sensor (HO2S) 1

Pin

Wire

Function

1

PK

HO2S1 Input

2

BK

HO2S1 Heater Feed Circuit

3

BK

HO2S1 Heater Control

4

BN

Low Reference

Heated Oxygen Sensor (HO2S) 2


Object Number: 820019  Size: CH

Connector Part Information

  • OEM: 90980-10794
  • Service: N/A
  • Description: D-GY

Heated Oxygen Sensor (HO2S) 2

Pin

Wire

Function

1

BK

HO2S2 Feed Circuit

2

PK/BK

HO2S2 Heater Control

3

BN

Ground

4

WH

HO2S2 Heater Control

Ignition Coil 1


Object Number: 820192  Size: CH

Connector Part Information

  • OEM: 90980-11885
  • Service: N/A
  • Description: BN

Ignition Coil 1

Pin

Wire

Function

1

BK/WH

Ignition Coil Feed Circuit

2

BU/YE

Ignition Fail Safe Input

3

RD/BU

Ignition Trigger Circuit

4

WH/BK

Ground

Ignition Coil 2


Object Number: 820192  Size: CH

Connector Part Information

  • OEM: 90980-11885
  • Service: N/A
  • Description: BN

Ignition Coil 2

Pin

Wire

Function

1

BK/WH

Ignition Coil Feed Circuit

2

BU/YE

Ignition Fail Safe Input

3

YE/GN

Ignition Trigger Circuit

4

WH/BK

Ground

Ignition Coil 3


Object Number: 820192  Size: CH

Connector Part Information

  • OEM: 90980-11885
  • Service: N/A
  • Description: BN

Ignition Coil 3

Pin

Wire

Function

1

BK/WH

Ignition Coil Feed Circuit

2

BU/YE

Ignition Fail Safe Input

3

GY

Ignition Trigger Circuit

4

WH/BK

Ground

Ignition Coil 4


Object Number: 820192  Size: CH

Connector Part Information

  • OEM: 90980-11885
  • Service: N/A
  • Description: BN

Ignition Coil 4

Pin

Wire

Function

1

BK/WH

Ignition Coil Feed Circuit

2

BU/YE

Ignition Fail Safe Input

3

WH

Ignition Trigger Circuit

4

WH/BK

Ground

Knock Sensor (KS)


Object Number: 334996  Size: CH

Connector Part Information

  • OEM: 90980-11875
  • Service: N/A
  • Description: BK

Knock Sensor (KS)

Pin

Wire

Function

1

WH

KS Signal Low

2

BK

KS Signal High

Mass Air Flow (MAF) Sensor


Object Number: 820101  Size: CH

Connector Part Information

  • OEM: 90980-11317
  • Service: N/A
  • Description: BK

Mass Air Flow (MAF) Sensor

Pin

Wire

Function

1

BK

MAF Feed Circuit

2

BU/WH

MAF Signal Low

3

GN

MAF Signal High

4

YE/BK

IAT Sensor Input

5

BN

Sensor Ground

Noise Filter


Object Number: 820022  Size: CH

Connector Part Information

  • OEM: 90980-10843
  • Service: N/A
  • Description: GY

Noise Filter

Pin

Wire

Function

1

BK/WH

Noise Filter Feed Circuit

2

--

Not Used

Throttle Actuator Control (TAC) Module


Object Number: 334913  Size: CH

Connector Part Information

  • OEM: 90980-11858
  • Service: N/A
  • Description: BK

Throttle Actuator Control (TAC) Module

Pin

Wire

Function

1

WH

Motor Control Low

2

BK

Motor Control High

3

BN

Sensor Ground

4

L-GN

TP Signal Sensor 2

5

YE

5-Volt Reference

6

L-GN

TP Signal Sensor 1

Vehicle Speed Sensor (VSS) (ABS)


Object Number: 820010  Size: CH

Connector Part Information

  • OEM: 90980-11156
  • Service: N/A
  • Description: BK

Vehicle Speed Sensor (VSS) (ABS)

Pin

Wire

Function

1

BK

Sensor Ground

2

WH

VSS Input