OBD-II code · Powertrain (generic)
P0BBE Hybrid/EV Battery Pack Voltage Variation
The BMS detects excessive variation between cell-group voltages within the HV battery pack. Cell imbalance beyond compensation.
Is it safe to drive with P0BBE?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCell capacity imbalance
- PossibleCell balancing function failed
- Less likelyGround point with elevated resistance
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 4–18 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Hv Battery Pack, Bms
Related codes
- P0BBBHybrid/EV Battery Voltage Sense Z Circuit High
- P0BBCHybrid/EV Battery Voltage Sense Z Circuit Intermittent/Erratic
- P0BBDHybrid Battery Voltage Sense Internal Module Performance
- P0BBFHybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit/Open
- P0BC0Hybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit Low
- P0BC1Hybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.