OBD-II code · Powertrain (generic)
P0E2D Internal Control Module Hybrid/EV Battery Monitor Performance
The hybrid control module detects an internal performance fault on the HV battery monitor processing. SOC/SOH calculations may be unreliable.
Is it safe to drive with P0E2D?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyInternal monitor processing fault
- PossibleInconsistent data from sensor modules
- 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
- 2–8 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Hybrid Control Module, Bms
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.