DTC P1548 Audi
Boost Pressure Control Valve Open
Boost Pressure Control Valve Open
Description
Engine started, battery voltage at least 11.5v, all electrical components off, ground connections between engine and chassis well connected, coolant temperature at least 80-degrees Celicius. The ECM detected an short in the boost pressure control valve.
Cause and Solution
Charge air pressure sensor is faulty
Voltage supply to the charge air pressure sensor is open or shorted
Check the charge air system for leaks
Recirculating valve for turbocharger is faulty
Turbocharging system is damaged or not functioning properly
Turbocharger recirculating valve is faulty
Vacuum diaphragm for turbocharger is out of adjustment
Wastegate bypass regulator valve is faulty
Boost sensor has failed
Video Guide
Diagnostic Info
- DTC Code: P1548
- Brand: Audi