What does code P1547 mean?

Q: What does code P1547 mean?

Boost Pressure Control Valve Short To Ground. P1547 on a Volkswagen indicates that the engine control module (ECM) has detected a short to ground on the electrical circuit for the boost pressure control valve, which is the solenoid that regulates turbocharger boost pressure. The ECM monitors the voltage on the control circuit and sets this code when the signal line is pulled to ground, either by a faulty valve, damaged wiring, or a poor connection.

DTC codes / Volkswagen codes / P1547

P1547 · VolkswagenBoost Pressure Control Valve Short To Ground

P1547 on a Volkswagen indicates that the engine control module (ECM) has detected a short to ground on the electrical circuit for the boost pressure control valve, which is the solenoid that regulates turbocharger boost pressure. The ECM monitors the voltage on the control circuit and sets this code when the signal line is pulled to ground, either by a faulty valve, damaged wiring, or a poor connection.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for Volkswagen vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.