What does code P1254 mean?

Q: What does code P1254 mean?

Fuel Consumption Signal Short To B+. P1254 on Volkswagen vehicles means the engine control module (ECM) has detected a short to battery voltage on the fuel consumption signal circuit. This signal typically originates from the instrument cluster or fuel gauge sender and is used by the ECM for calculations such as range and fuel economy; the ECM sees an abnormally high voltage on the wire, indicating a short to power rather than a valid signal.

DTC codes / Volkswagen codes / P1254

P1254 · VolkswagenFuel Consumption Signal Short To B+

P1254 on Volkswagen vehicles means the engine control module (ECM) has detected a short to battery voltage on the fuel consumption signal circuit. This signal typically originates from the instrument cluster or fuel gauge sender and is used by the ECM for calculations such as range and fuel economy; the ECM sees an abnormally high voltage on the wire, indicating a short to power rather than a valid signal.

SystemPowertrain

Code typeVolkswagen specific

SeverityLow

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.