Functional Check Procedure

1. Install a tachometer or a scan tool.
2. Operate the vehicle until you reach proper operating temperature.
3. Drive the vehicle at 80-88 km/h (5-55 mph) with a light throttle (road load).
4. Maintaining the throttle, lightly touch the brake pedal. Check for the release of the TCC and a slight increase in engine speed (RPM).
5. Release the brake. Slowly accelerate and check for a re-apply of the converter clutch and a slight decrease in engine speed (RPM).