What does code P2ACD mean?

Q: What does code P2ACD mean?

Reductant Temperature Sensor B Range/Performance. P2ACD is a generic powertrain code indicating that the reductant temperature sensor B, which monitors the temperature of the diesel exhaust fluid (DEF) in its designated tank or line, is reporting a signal outside the expected range or behaving erratically. The engine control module (ECM) compares the sensor voltage against a model of expected temperature behavior and sets this code when the correlation fails or the circuit performance is abnormal.

DTC codes / P2Axx · Hybrid propulsion / P2ACD

P2ACDReductant Temperature Sensor B Range/Performance

P2ACD is a generic powertrain code indicating that the reductant temperature sensor B, which monitors the temperature of the diesel exhaust fluid (DEF) in its designated tank or line, is reporting a signal outside the expected range or behaving erratically. The engine control module (ECM) compares the sensor voltage against a model of expected temperature behavior and sets this code when the correlation fails or the circuit performance is abnormal.

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.