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

Overdrive Switch


Object Number: 334992  Size: CH

Connector Part Information

    • 90980-10795
    • WHT

Pin

Wire Color

Function

1

WHT/BLK

O/D Switch Illumination Ground

2

GRN/BLK

Overdrive Request Circuit

3

GRN

O/D Switch Illumination Power

4

WHT/BLK

Ground

Park/Neutral Position (PNP) Switch


Object Number: 820186  Size: CH

Connector Part Information

    • 90980-11784
    • GRY

Pin

Wire Color

Function

1

--

Not Used

2

RED/BLK

Reverse Position Signal

3

RED/WHT

PNP Switch Feed Circuit

4

LT GRN

2nd Gear Position Signal

5

--

Not Used

6

BLK

Start Position Signal

7

BLU

Drive Position Signal

8

LT GRN/BLK

Low Position Signal

9

RED

PNP Switch Feed Circuit

Shiftlock Control Module


Object Number: 334475  Size: CH

Connector Part Information

    • 90980-11909
    • WHT

Pin

Wire Color

Function

1

WHT/BLK

Ground

2

--

Not Used

3

GRN/WHT

Stop Lamp Switch Input Circuit

4

--

Not Used

5

BLK/WHT

Shiftlock Control Module Feed Circuit

Transmission Connector


Object Number: 820252  Size: CH

Connector Part Information

    • 90980-10854
    • GRY

Pin

Wire Color

Function

1

RED/WHT

PC Solenoid High

2

BLU/WHT

TCC Solenoid

3

RED/YEL

Shift Solenoid 1 Control

4

PNK

PC Solenoid Low

5

--

Not Used

6

BLU

Shift Solenoid 2

Vehicle Speed Sensor (VSS)


Object Number: 335027  Size: CH

Connector Part Information

    • 90980-11143
    • BLK

Pin

Wire Color

Function

1

RED/WHT

VSS Feed Circuit

2

BRN

Ground

3

WHT/GRN

VSS Input Circuit