What does code P0B93 mean?

Q: What does code P0B93 mean?

Hybrid/EV Battery Voltage Sense R Circuit High. P0B93 indicates that the hybrid or electric vehicle battery pack's voltage sensing circuit, specifically the 'R' circuit, is reporting a voltage higher than the manufacturer's expected range to the battery energy control module. The computer compares the sensed voltage against other cell voltage inputs and flags a high condition when the signal exceeds a calibrated threshold, often due to a wiring fault or a failing sense line.

DTC codes / P0Bxx · Hybrid propulsion / P0B93

P0B93Hybrid/EV Battery Voltage Sense R Circuit High

P0B93 indicates that the hybrid or electric vehicle battery pack's voltage sensing circuit, specifically the 'R' circuit, is reporting a voltage higher than the manufacturer's expected range to the battery energy control module. The computer compares the sensed voltage against other cell voltage inputs and flags a high condition when the signal exceeds a calibrated threshold, often due to a wiring fault or a failing sense line.

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.