GM Service Manual Online
For 1990-2009 cars only
Table 1: Automatic Transmission Input Shaft Speed (AT ISS) Sensor Connector
Table 2: Automatic Transmission Output Shaft Speed (AT OSS) Sensor Connector
Table 3: Transmission Range Switch Connector, Wiring Harness Side
Table 4: Tow/Haul Switch Connector, Column Wiring Harness Side
Table 5: Park/Neutral Position (PNP) Switch (C2)

Automatic Transmission Input Shaft Speed (AT ISS) Sensor Connector


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • ASM 2F M/P 150.2 P2S SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED/BLK

1230

Transmission Input Speed Sensor Signal High

B

DK BLU/WHT

1231

Transmission Input Speed Sensor Signal Low

Automatic Transmission Output Shaft Speed (AT OSS) Sensor Connector


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • ASM 2F M/P 150.2 P2S SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

821

Transmission Output Speed Sensor Signal High

B

LT GRN/BLK

822

Transmission Output Speed Sensor Signal Low

Transmission Range Switch Connector, Wiring Harness Side


Object Number: 535904  Size: CH

Connector Part Information

    • 12191757
    • Asm Conn 4F M/P 150 (NAT)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

771

TR Switch Signal A

B

GRY

773

TR Switch Signal C

C

WHT

776

TR Switch Signal P

D

YEL

772

TR Switch Signal B

Tow/Haul Switch Connector, Column Wiring Harness Side


Object Number: 35441  Size: CH

Connector Part Information

    • 12047663
    • Conn 2M M/P 150 (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

553

Tow/Haul Switch Input

B

BLK

1850

Tow/Haul Switch Ground

Park/Neutral Position (PNP) Switch (C2)


Object Number: 535900  Size: CH

Connector Part Information

    • 12129840
    • 7-Way Female M/P Mixed (GRY)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

LT GRN

275

Neutral Safety Switch Park Signal

C

PNK

139

Ignition 1 Voltage

D

BLK

451

Ground

E

PPL

806

Crank Voltage

F

LT GRN

24

Back-up Lamp Supply Voltage

G

YEL

1737

Neutral Safety Switch Park/Neutral Signal