P0ED2Hybrid/EV Battery F Voltage Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0ED2 means hybrid/EV battery F delivers less voltage than the controller predicts from current draw and state of charge. No manufacturer documents P0ED2 publicly. Published undervoltage limits exist for whole packs: GM's hybrid tables fail the pack below 24 V (P0ABC), and Ford sets P0A7D during cranking if its pack reads under 184.8 V on plug-in or 167.2 V on full hybrids, or if the weakest cell drops below 2.1 V for half a second. For one unit the limits scale with its number of cells. Typical causes are an aged module with lost capacity, a cell with internal leakage that drained during standstill, or a high-resistance joint that loses voltage under load. Discharge power is cut back. High voltage of unit F is P0ED3, low voltage of unit E is P0ECE.
- What you may notice
- Less power in electric mode
- Shorter electric range
- MIL and battery warning
- Likely causes
- LikelyAged module in unit F with lost capacity
- PossibleCell with internal leakage drained during standstill
- PossibleHigh-resistance connection inside unit F dropping voltage under load
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.