GM Service Manual Online
For 1990-2009 cars only
Table 1: Automatic Transmission Wiring Harness Assembly 4-way Connector, Transmission Side
Table 2: Automatic Transmission Wiring Harness Assembly 4-way Connector, Engine Side

Automatic Transmission Wiring Harness Assembly 4-way Connector, Transmission Side


Object Number: 25688  Size: CH

Connector Part Information

    • 8634383
    • Insert molded M M/P to F W/P

Pin

Wire Color

Circuit No.

Function

A

RED

439

Torque Converter Clutch Solenoid (TCC Sol.) Valve

B

--

--

2nd Gear Clutch Pressure Switch (Non-NAO applications only)

C

--

--

--

D

WHT

422

3rd Clutch Pressure Switch (Closed in 3rd Gear)

Automatic Transmission Wiring Harness Assembly 4-way Connector, Engine Side

 

Connector Part Information

    • 12015390
    • 2 Way Weather Pack (Blue)

Pin

Wire Color

Circuit No.

Function

A

PNK

439

Power

B

--

--

Not Used

C

--

--

Not Used

D

TAN/BLK

422

TCC Sol. Valve Control