DTC P1557 Audi
Charge Pressure Control Positive Deviation
Charge Pressure Control Positive Deviation
Charge Pressure Control Negative Deviation
Charge Pressure Upper Limit Exceeded
Charge Pressure Deviation
Boost Pressure Control Valve Open
Boost Pressure Control Valve Short to Ground
Boost Pressure Control Valve Short to B+
Throttle Position Control Malfunction
Throttle Actuation Potentiometer Signal Too High
Throttle Actuation Potentiometer Signal Too Low
Throttle Actuation Potentiometer Range Performance
Fuel Pump Relay Circuit Open