I’ve bought the AL439 to solve a specific issue on my FIAT car, well the MIL sign is on and using my old OBD reader the error found is “P0254”, but unfortunatelly I can’t erase the error because the software can’t.

The AL439 is able to connect with the ECU of my car by “KWP 2000” protocoll but isn’t able to detect the error ! He says the MIL is off ( not true ) so no detect no erase.

The ECU of my car is “LUCAS EPIC DCU3F DIESEL INJECTION”.

Can anyone help me ?