Is there an ecu on the 6n2 for headlight? But if its the xenons, there's the ballast underneath the headlight unit itself
Yes my headlights are Xenon, my car is in a garage looking at why the OBD port is not working - yet when a scanner is plugged in the headlight self levelling motors start working ???
if you have aftermarket radio, unplug it. if its like a mk4 golf they have diagnostics to radio plug and that pin corresponds to amp power on aftermarket units which stops all vagcom communications