Audi Q3 P0031: O2 Sensor Heater Control Circuit → Low B1S1
P0031 is a generic code, which means that it has the same meaning for the Audi Q3 as it would any other OBDII equipped vehicle. As far as diagnostic trouble codes go, this is a relatively easy one to diagnose. It is usually caused by a bad oxygen sensor, or a wiring issue. Table of … Read more