Torque Converter Clutch (TCC) Operation Test

This test verifies that the TCC  control system and the torque converter are operating correctly.

1. Carry out Self Test, refer to the tester manual. Check for DTCs.
2. Connect a tachometer to the engine.
3. Bring the engine to normal operating temperature by driving the vehicle at highway speeds for approximately 15 minutes in (D) position.
4. If the vehicle stalls in (D) at idle with vehicle at a stop, move the selector lever to manual L position. If the vehicle stalls, see torque converter operation concerns, refer to DIAGNOSIS BY SYMPTOM . Repair as required. If the vehicle does not stall in (D), refer to DIAGNOSIS BY SYMPTOM .