What does code P2E72 mean?

Q: What does code P2E72 mean?

Hybrid/EV Battery Pack B Cell Thickness Sensor Circuit Low. P2E72 indicates that the battery management system has detected a low-voltage signal from the cell thickness sensor circuit for battery pack B, which monitors physical changes in the cells. The computer sets this code when the sensor's output falls below the expected range, often due to a wiring fault, sensor failure, or internal battery issue.

DTC codes / P2Exx · Hybrid propulsion / P2E72

P2E72Hybrid/EV Battery Pack B Cell Thickness Sensor Circuit Low

P2E72 indicates that the battery management system has detected a low-voltage signal from the cell thickness sensor circuit for battery pack B, which monitors physical changes in the cells. The computer sets this code when the sensor's output falls below the expected range, often due to a wiring fault, sensor failure, or internal battery issue.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.