What does code P0B29 mean?

Q: What does code P0B29 mean?

Hybrid/EV Battery B Voltage Low. P0B29 indicates that the hybrid or electric vehicle battery control module has detected an abnormally low voltage condition in battery module B, which is one specific section of the high-voltage pack. The computer compares this module's voltage against expected values and flags the code when the reading falls below the calibrated threshold for a set period.

DTC codes / P0Bxx · Hybrid propulsion / P0B29

P0B29Hybrid/EV Battery B Voltage Low

P0B29 indicates that the hybrid or electric vehicle battery control module has detected an abnormally low voltage condition in battery module B, which is one specific section of the high-voltage pack. The computer compares this module's voltage against expected values and flags the code when the reading falls below the calibrated threshold for a set period.

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.