P0E6BBattery Charging System Precharge Contactor Circuit Stuck Closed
- Generic OBD-II code · Powertrain
- Can trigger limp mode
- How the car detects it
- P0E6B means the precharge contactor of the charging system appears to stay closed although it has been told to open, usually because its contacts have welded. The battery management notices this when the charger side carries voltage before any precharge was requested, or when it does not drop after switch-off. That is a safety matter: the charging path may remain live. No manufacturer documents P0E6B publicly. Mitsubishi's i-MiEV manual, published as a 2019 bulletin, handles the comparable weld of its charging contactor under P0AE2 and checks it as the high-voltage system is activated; besides wiring and the contactor itself it lists the combined charger and DC-DC unit and other high-voltage loads as possible causes. CARB requires faults that disable charging to be detected. The opposite fault is P0E6C.
- What you may notice
- Charging blocked and high-voltage warning displayed
- Vehicle may refuse to switch to ready mode
- Likely causes
- LikelyPrecharge contactor contacts welded together
- RareCoil kept energised by a control line fault
- RareResidual voltage from another high-voltage unit misread as a closed contactor
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.