What does code P0B64 mean?

Q: What does code P0B64 mean?

Hybrid/EV Battery Voltage Sense I Circuit Range/Performance. P0B64 indicates that the hybrid or electric vehicle battery pack's voltage sensing circuit for cell group 'I' is reporting a voltage reading outside the range the battery energy control module expects for the present state of charge and temperature. The computer has detected a performance fault in that specific sense circuit, meaning the signal is not tracking correctly even though the circuit may still be electrically continuous.

DTC codes / P0Bxx · Hybrid propulsion / P0B64

P0B64Hybrid/EV Battery Voltage Sense I Circuit Range/Performance

P0B64 indicates that the hybrid or electric vehicle battery pack's voltage sensing circuit for cell group 'I' is reporting a voltage reading outside the range the battery energy control module expects for the present state of charge and temperature. The computer has detected a performance fault in that specific sense circuit, meaning the signal is not tracking correctly even though the circuit may still be electrically continuous.

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.