Useful checks before replacing parts
- Compare block voltages, total pack voltage, current flow, state of charge, temperature data, freeze-frame load, and related battery performance codes.
- Inspect voltage sense wiring, battery ECU connectors, corrosion, water intrusion, service disconnect seating, and signs of module imbalance.
- Monitor voltage data during charge and discharge to identify offsets, lag, sudden jumps, or implausible block readings.
Related OBD-II codes
These nearby hybrid / ev entries can help compare wording and fault area. They may share the same verification status as the source database.