What does code P0B72 mean?

Q: What does code P0B72 mean?

Hybrid/EV Battery Voltage Sense L Circuit. P0B72 indicates that the hybrid or electric vehicle battery control module has detected an abnormal voltage reading on the voltage sense circuit for battery module or cell group 'L'. The computer compares this sensed voltage against expected values and flags the circuit as faulty when the signal is out of range, erratic, or missing.

DTC codes / P0Bxx · Hybrid propulsion / P0B72

P0B72Hybrid/EV Battery Voltage Sense L Circuit

P0B72 indicates that the hybrid or electric vehicle battery control module has detected an abnormal voltage reading on the voltage sense circuit for battery module or cell group 'L'. The computer compares this sensed voltage against expected values and flags the circuit as faulty when the signal is out of range, erratic, or missing.

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.