What does code P254F mean?

Q: What does code P254F mean?

Engine Hood Switch Circuit. P254F is a generic OBD-II code that indicates the powertrain control module (PCM) has detected an implausible signal from the engine hood switch circuit, which is used to monitor whether the hood is open or closed. The PCM expects a specific voltage or state change when the hood is opened or closed, and it sets this code when the signal does not match the expected value for the current conditions.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P254F

P254FEngine Hood Switch Circuit

P254F is a generic OBD-II code that indicates the powertrain control module (PCM) has detected an implausible signal from the engine hood switch circuit, which is used to monitor whether the hood is open or closed. The PCM expects a specific voltage or state change when the hood is opened or closed, and it sets this code when the signal does not match the expected value for the current conditions.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

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