What does code P1289 mean?

Q: What does code P1289 mean?

Turbocharge Bypass Valve Short To Ground. P1289 on a Volkswagen indicates the engine control module has detected a short to ground on the electrical circuit for the turbocharger bypass valve, also called the diverter valve. The computer monitors the control wire for an unexpected ground path and sets this code when the signal voltage stays below the expected threshold, which prevents the valve from receiving its commanded actuation signal.

DTC codes / Volkswagen codes / P1289

P1289 · VolkswagenTurbocharge Bypass Valve Short To Ground

P1289 on a Volkswagen indicates the engine control module has detected a short to ground on the electrical circuit for the turbocharger bypass valve, also called the diverter valve. The computer monitors the control wire for an unexpected ground path and sets this code when the signal voltage stays below the expected threshold, which prevents the valve from receiving its commanded actuation signal.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

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