What does code P2ACC mean?

Q: What does code P2ACC mean?

Reductant Temperature Sensor B Circuit. P2ACC indicates that the powertrain control module has detected an abnormal condition in the electrical circuit for reductant temperature sensor B, which is used to monitor the temperature of the diesel exhaust fluid (DEF) in its tank. The computer compares the sensor signal against expected values and sets this code when the voltage, resistance, or rationality check falls outside the manufacturer's calibrated range.

DTC codes / P2Axx · Hybrid propulsion / P2ACC

P2ACCReductant Temperature Sensor B Circuit

P2ACC indicates that the powertrain control module has detected an abnormal condition in the electrical circuit for reductant temperature sensor B, which is used to monitor the temperature of the diesel exhaust fluid (DEF) in its tank. The computer compares the sensor signal against expected values and sets this code when the voltage, resistance, or rationality check falls outside the manufacturer's calibrated range.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

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