What does code P24EE mean?

Q: What does code P24EE mean?

NH3 Sensor Processor Performance. P24EE indicates that the powertrain control module has detected a performance fault within the ammonia (NH3) sensor's internal processing circuitry, meaning the sensor's signal is not responding or calculating as expected. The computer monitors the sensor's processor for rationality and timing, and when the signal deviates from the expected range or fails to update correctly, it stores this code and illuminates the check engine light.

DTC codes / P24xx · Auxiliary emission controls / P24EE

P24EENH3 Sensor Processor Performance

P24EE indicates that the powertrain control module has detected a performance fault within the ammonia (NH3) sensor's internal processing circuitry, meaning the sensor's signal is not responding or calculating as expected. The computer monitors the sensor's processor for rationality and timing, and when the signal deviates from the expected range or fails to update correctly, it stores this code and illuminates the check engine light.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

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