Functional Check
- Install a tachometer or scan tool.
- Operate the vehicle unit proper operating temperature is reached.
- Drive the vehicle at 80 - 88 km/h (50 - 55 mph) with light throttle (road load).
- Maintaining throttle position, lightly touch the brake pedal and check for release of the TCC and a slight increase in engine speed (RPM).
- Release the brake slowly accelerate and check for a reapply of the Lock-up clutch and a slight decrease in engine speed (RPM).