Part Number: 03H906032ED
Compatibility: This ECM is compatible with Volkswagen Touareg models featuring a 3.6-liter engine.
Supersession: The part number 03H906032ED supersedes the earlier version 03H906032CB, indicating an updated module.
A used ECU will likely still contain the VIN (Vehicle Identification Number), immobilizer data, and other settings from the previous vehicle. To fit it to your car, it will need to be reprogrammed to match your vehicle's specifications. This includes:
Flashing new software: Install the correct software for your vehicle.
Coding (SCN coding): Program the ECU with your vehicle's VIN, immobilizer data, and other specific settings .
Reprogramming typically requires specialized diagnostic tools and software, such as SDD (Special Diagnostic Device) or third-party tools like Autel or Launch.
The ECU is tied to the vehicle's immobilizer system. If the used ECU is not properly synchronized with your car's immobilizer, the engine may not start. This process involves:
Matching the ECU to your vehicle's immobilizer module.
Reprogramming the keys to work with the new ECU.
Physically install the used ECU in your vehicle:
Remove the old ECU and replace it with the used one.
Reconnect all wiring harnesses securely.
Ensure the installation is done carefully to avoid damaging the ECU or vehicle electronics.
After installation, reconnect the battery and start the vehicle to verify that the ECU is functioning correctly.
Use a diagnostic tool to check for error codes and ensure there are no issues with the new ECU.
Fitting a used ECU can be complex due to the need for reprogramming and immobilizer synchronization. It is highly recommended to consult a professional with experience in ECU programming and installation.
