JohnJohn

Hello everyone, I have two ODB devices. One is ELM327 Wifi OBD2 and the other one is OBDLink LX Bluetooth. My problem is that none of the OBDs connect to Toyota cars. More specifically: I have tested the two OBD devices on 4 cars: Mazda, Honda, Toyota(Auris), Toyota(Yaris) - On Honda and Mazda: The devices are connected and the measurements appear on the dashboard as they should be - On the two Toyota cars: The OBD devices are connected but the measurements do not appear on the dashboard. Both cars were made on years near 2010 (don't remember exactly). It seems like Toyota cars have some sort of setting that restricts the connection between OBD and ECU? Do you have any idea what might be causing the problem and how I could fix this?