What does code P2AD0 mean?

Q: What does code P2AD0 mean?

Reductant Temperature Sensor B Circuit Intermittent/Erratic. P2AD0 indicates that the powertrain control module (PCM) has detected an intermittent or erratic signal from the reductant temperature sensor B circuit, which is part of the diesel exhaust fluid (DEF) system on diesel vehicles. The PCM expects a stable voltage or resistance from this sensor, and when the signal jumps, drops out, or behaves unpredictably, it sets this code to flag a reliability problem with the sensor circuit.

DTC codes / P2Axx · Hybrid propulsion / P2AD0

P2AD0Reductant Temperature Sensor B Circuit Intermittent/Erratic

P2AD0 indicates that the powertrain control module (PCM) has detected an intermittent or erratic signal from the reductant temperature sensor B circuit, which is part of the diesel exhaust fluid (DEF) system on diesel vehicles. The PCM expects a stable voltage or resistance from this sensor, and when the signal jumps, drops out, or behaves unpredictably, it sets this code to flag a reliability problem with the sensor circuit.

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.