Technical Definition:

Torque Converter Clutch Circuit Performance / Stuck Off

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:

• Performance or Stuck Off Indicator Lamp (MIL) illuminated
• Minimal decrease in fuel economy, this will not affect engine performance

Torque Converter Clutch Circuit Performance or Stuck Off

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: