OBD2 by car brand
Which years have OBD2, where the port usually is and what a generic scanner can read, brand by brand. Details may vary by model, so check your owner's manual too.
Toyota OBD2 guide
Does your Toyota have OBD2? Model years by law in the US and EU, where the port usually is, which protocols apply, and what a generic OBD2 scanner can and can't read.
Volkswagen OBD2 guide
Does your Volkswagen have OBD2? Model years by law in the US and EU, where the port usually is, which protocols apply, and what a generic OBD2 scanner can and can't read.
Ford OBD2 guide
Does your Ford have OBD2? Model years by law in the US and EU, where the port usually is, which protocols apply, and what a generic OBD2 scanner can and can't read.
See also: OBD2 guides · OBD2 trouble code guides
Read your car with OBD Master Pro
Use your Android phone with a generic ELM327 adapter over Bluetooth, Bluetooth LE, Wi-Fi or USB to read codes, live data and emissions readiness.
