I used it on a 2 Opel Meriva and Citroen C4. The device hangs well bluetooth and is sending the information available. Cheap as it allows to know the car measures that are not displayed (On Board Data). As the vehicles worked well, I have no experience on Identificator Light Malfunction display. The hardest part is finding the OBD taken on the vehicle. Attention, it is from Singapore, mailing time, although fast considering the distance, takes at least 10 days.