What does code P2B7D mean?

Q: What does code P2B7D mean?

EVAP System Pressure Sensor/Switch C Circuit High. P2B7D indicates that the powertrain control module has detected an abnormally high voltage on the electrical circuit for EVAP system pressure sensor or switch C, which typically points to a short to voltage or an open circuit in the sensor's signal or reference return path. The computer expects the sensor's output to stay within a calibrated voltage window, and a sustained high reading tells it that the sensor is not reporting pressure correctly.

DTC codes / P2Bxx · Hybrid propulsion / P2B7D

P2B7DEVAP System Pressure Sensor/Switch C Circuit High

P2B7D indicates that the powertrain control module has detected an abnormally high voltage on the electrical circuit for EVAP system pressure sensor or switch C, which typically points to a short to voltage or an open circuit in the sensor's signal or reference return path. The computer expects the sensor's output to stay within a calibrated voltage window, and a sustained high reading tells it that the sensor is not reporting pressure correctly.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

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.