Technical Definition:

Torque Converter Clutch Circuit Stuck On

Technical Description:

Modern vehicles equipped with automatic transmissions / transaxles use a torque converter between the engine and transmission to increase the engine torque output and drive the rear wheels.

Possible Causes:

Possible Symptoms:

• Stuck On Indicator Lamp (MIL) illuminated
• If the torque converter clutch is actually stuck on, the engine may stall at idle. This is a common problem for certain model GM vehicles, while driving at highway speeds and then coming to a stop the engine dies from the torque converter clutch being stuck on. Usually the engine will restart and resume normal operation.

Torque Converter Clutch Circuit Stuck On

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Low transmission fluid level
– Dirty transmission fluid
– Faulty torque converter clutch solenoid valve
– Torque converter clutch solenoid valve harness or connectors
– Torque converter clutch solenoid valve circuit is open or shorted
– Transmission internal mechanical problem

Specific Makes: