Materials:
* OBD-II diagnostic scanner
* Flashing software
* Firmware file for your specific automatic transmission control unit
Steps:
1. Read the current firmware version:
* Connect the OBD-II scanner to the vehicle’s diagnostic port.
* Select your car from the list on the scanner.
* Gain access to the automatic transmission control module.
* Read the current firmware version.
2. Download the firmware file:
* Find the firmware file for your automatic transmission model and control unit version.
* Make sure the firmware file is from a trusted source.
3. Prepare the car for flashing:
* Provide a stable power supply for the car.
* Disconnect all loose electrical connections.
* Deactivate the airbags.
4. Run the flashing software:
*Run the flashing software you will be using.
* Select the automatic transmission model and control unit from the list.
5. Connect the control unit to the computer:
* Install a flashing cable between the control unit and the computer.
* Make sure the connection is secure.
6. Start the flashing process:
*Follow the instructions in the flashing software.
* Select the firmware file you want to install.
* Start the flashing process.
7. Wait for the flashing to complete:
* The flashing process may take several minutes.
* Do not interrupt the process.
8. Check the new firmware version:
*After the flashing is completed, reconnect the OBD-II scanner.
* Check the automatic transmission control module and read the new firmware version.
9. Take a test drive:
* Drive the car in different conditions to check the performance of the reflashed automatic transmission.
Notes:
* Perform flashing of the automatic transmission control unit only under the guidance of a qualified specialist.
* Incorrect flashing may damage the control unit or transmission.
* Always use a firmware file specifically designed for your automatic transmission model and control unit.
* Do not communicate with the control unit while driving.