What does code P06F1 mean?

DTC codes / P06xx · Computer and output circuits / P06F1

P06F1Reductant Control Module Internal Temperature Sensor Range/Performance

P06F1 means the reductant control module has detected that its internal temperature sensor is reading outside the expected range or is not responding in a plausible way. The module uses this sensor to protect its own electronics from overheating while managing the diesel exhaust fluid (DEF) system, so the fault is logged when the signal stays too high, too low, or changes erratically.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaComputer and output 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.