OBD
P0EDF
Hybrid/EV Battery Pack D Deterioration
What it means
P0EDF means Hybrid/EV Battery Pack D Deterioration.
Check these first
- A weak cell group in battery pack D
- Heat damage from a blocked pack D cooling duct
- A failed voltage sense lead on pack D
- Normal capacity loss in battery pack D
What to do next
- Read hybrid battery pack D cell voltages on a scan tool
- Compare capacity and resistance across pack D
- Check the pack D cooling duct and fan
- Test the pack D sense leads
- Replace the weak cells or pack D if capacity is low
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.