Torque Converter Operation Test

Torque Converter Operation Test

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

1. Carry out self-test and check for DTCs.

2. Connect the scan tool and monitor engine rpm.

3. Bring the engine to normal operating temperature by driving the vehicle at highway speeds with the selector lever in the (D) position.

4. If the vehicle stalls in (D) at idle with the 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 Diagnosis By Symptom. Repair as required. If the vehicle does not stall in (D), refer to Diagnosis By Symptom Diagnosis By Symptom.