OBD-II code · Powertrain (generic)
P0DE7 Hybrid/EV Battery Pack Cell Voltage High
The BMS detects at least one cell with voltage above the safe upper limit. Risk of cell damage from overcharge.
Is it safe to drive with P0DE7?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCell balancing failed - cell overcharged
- PossibleCell with reduced capacity reaches voltage limit early
- Less likelyPack cell imbalance approaching service threshold
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
- Parts involved
- Hv Battery Pack, Bms
Related codes
- P0DE4Electric/Auxiliary Transmission Fluid Pump A Motor Over Temperature
- P0DE5Charge Status Indicator B Control Circuit/Open
- P0DE6Hybrid/EV Battery Pack Cell Voltage Low
- P0DE8Hybrid/EV Battery Pack Coolant Control Valve C Control Circuit/Open
- P0DE9Hybrid/EV Battery Pack Coolant Control Valve C Performance/Stuck Off
- P0DEAHybrid/EV Battery Pack Coolant Control Valve C Stuck On
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.