GM Service Manual Online
For 1990-2009 cars only
Table 1: 3T40, Lcar
Table 2: 3T40, Lcar

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


Object Number: 25688  Size: CH

3T40, Lcar

Connector Part Information

 

Pin

Wire Color

Circuit No.

Function

A

18GA RED

--

Torque Converter Clutch Solenoid (TCC Sol.) Valve

B

--

--

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

C

--

--

--

D

18GA WHT

--

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

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

3T40, Lcar

Connector Part Information

 

Pin

Wire Color

Circuit No.

Function

A

0.8 PNK

39

Power

B

--

--

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

C

--

--

--

D

0.8 TAN/BLK

422

TCC Sol. Valve