What does code P22F1 mean?

Q: What does code P22F1 mean?

Particulate Matter Sensor Heater Performance. P22F1 indicates that the powertrain control module has detected a heater performance fault within the particulate matter sensor circuit, typically a heater element that is not drawing the expected current or reaching the required temperature within a calibrated time. The computer monitors the heater's electrical current and response time during key-on or active regeneration, and it sets this code when the heater fails to meet the expected performance profile.

DTC codes / P22xx · Fuel and air metering (injector circuits) / P22F1

P22F1Particulate Matter Sensor Heater Performance

P22F1 indicates that the powertrain control module has detected a heater performance fault within the particulate matter sensor circuit, typically a heater element that is not drawing the expected current or reaching the required temperature within a calibrated time. The computer monitors the heater's electrical current and response time during key-on or active regeneration, and it sets this code when the heater fails to meet the expected performance profile.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

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