Product code: EL-01553
Available quantity Part in EU warehouse
Discovery 2 TD5 (1999-2004): The NNN500250 is compatible with both EU2 and EU3 emissions standard engines, provided the correct fuel map is programmed.
Defender TD5 (1999-2004): This ECU is suitable for Defender models equipped with the TD5 engine and manual transmission. Programming the appropriate Defender-specific fuel map is essential for optimal functionality.
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.
