Automatic transmission adaptation
Automatic transmission adaptation is a process in which the electronic transmission control unit (ETCU) adjusts gear shift points based on vehicle operating conditions and driver preferences.
The need to adapt the automatic transmission
Automatic transmission adaptation may be required in the following cases:
* Replacement of automatic transmission or computer
* Reset ECU settings
* Changes in vehicle operating conditions (for example, driving with a trailer)
* ECU software update
Automatic transmission adaptation procedure
The automatic transmission adaptation process varies depending on the make and model of the car. However, in general it involves the following steps:
1. Warm up the engine and transmission: Start the engine and let it idle for a few minutes until it reaches operating temperature.
2. Shifting gears: Start shifting gears in order (from P to D and back) with a delay of a few seconds in each gear.
3. Acceleration and deceleration: Accelerate and decelerate over several cycles while holding the accelerator pedal at various engine speeds.
4. Driving on cruise control: Turn on cruise control and maintain a constant speed for a while.
5. Error Scanning: Connect the diagnostic scanner to the vehicle and check for error codes. Correct any errors found.
6. Clearing the computer memory: Using a diagnostic scanner, reset the adaptive settings of the computer.
7. Re-execute adaptation: Repeat steps 2-4 to complete the adaptation process.
8. Checking the behavior of the automatic transmission: After completing the adaptation, take a test drive and make sure that the automatic transmission operates smoothly and efficiently.
Recommendations
* Carry out automatic transmission adaptation in accordance with the manufacturer’s instructions.
* Use quality transmission fluid and change it regularly.
* Avoid sudden acceleration and braking, as well as sudden starts from a standstill.
* Do not overload the vehicle or tow heavy objects unless permitted by the manufacturer.
* Carry out regular automatic transmission maintenance, including replacing filters and gaskets.