GM Service Manual Online
For 1990-2009 cars only
Connector 1: Overdrive Switch
Connector 2: Park/Neutral Position (PNP) Switch
Connector 3: Shiftlock Control Module
Connector 4: Transmission Connector
Connector 5: Vehicle Speed Sensor (VSS)

Overdrive Switch


Object Number: 334992  Size: CH

Connector Part Information

  • OEM: 90980-10795
  • Service: N/A
  • Description: WH

Overdrive Switch

Pin

Wire

Function

1

WH/BK

O/D Switch Illumination Ground

2

GN/BK

Overdrive Request Circuit

3

GN

O/D Switch Illumination Power

4

WH/BK

Ground

Park/Neutral Position (PNP) Switch


Object Number: 1489466  Size: CH

Connector Part Information

  • OEM: 90980-12362
  • Service: N/A
  • Description: GY

Park/Neutral Position (PNP) Switch

Pin

Wire

Function

1

RD/BK

Reverse Position Signal

2

RD/WH

Ignition Voltage

3

L-GN

2nd Gear Position Signal

4

RD

Battery Voltage

5

BK

Ground

6

BU/RD

Neutral Position Signal

7

BU

Drive Position Signal

8

L-GN/BK

Low Position Signal

9

BU/WH

Park Position Signal (-JL4)

Shiftlock Control Module


Object Number: 334475  Size: CH

Connector Part Information

  • OEM: 90980-11909
  • Service: N/A
  • Description: WH

Shiftlock Control Module

Pin

Wire

Function

1

WH/BK

Ground

2

--

Not Used

3

GN/WH

Stop Lamp Switch Input Circuit

4

--

Not Used

5

BK/WH

Shiftlock Control Module Feed Circuit

Transmission Connector


Object Number: 820252  Size: CH

Connector Part Information

  • OEM: 90980-10854
  • Service: N/A
  • Description: GY

Transmission Connector

Pin

Wire

Function

1

RD/WH

PC Solenoid High

2

BU/WH

TCC Solenoid

3

RD/YE

Shift Solenoid 1 Control

4

PK

PC Solenoid Low

5

--

Not Used

6

BU

Shift Solenoid 2

Vehicle Speed Sensor (VSS)


Object Number: 335027  Size: CH

Connector Part Information

  • OEM: 90980-11143
  • Service: N/A
  • Description: BK

Vehicle Speed Sensor (VSS)

Pin

Wire

Function

1

RD/WH

VSS Feed Circuit

2

BN

Ground

3

WH/GN

VSS Input Circuit