Functional Check - 4T60-E Transaxle

1. Set up the TECH 1 or other scan tool in order to read the engine.
2. Operate the vehicle until you have reached the proper operating temperature.
3. Drive the vehicle at 80-88 km/h (50-55 mph) with a light throttle (road load).
4. Maintaining throttle speed, lightly touch the brake pedal. Check for the release of the TCC and a slight increase in engine speed.
5. Release the brake and slowly accelerate. Check for a reapply of the converter clutch and a slight decrease in engine speed.
6. To properly diagnose the Torque Converter Clutch (TCC) system, first perform all electrical testing and then test the hydraulic system.
- For diagnosis of the TCC hydraulic controls, refer to the FLUID FLOW AND CIRCUIT DESCRIPTIONS, and the WIRING DIAGRAMS. Description and Operation
- Refer to the DTC tables.