P2D70Battery Charging System Negative Contactor D Circuit
- Generic OBD-II code · Powertrain
- How the car detects it
- P2D70 groups electrical faults of negative charging contactor D, the return-side partner of plus contactor D (P2D69). What D switches and when P2D70 is set remain undocumented. Separate contactors in both poles of a charging path exist so that the inlet can be fully cut off; for diagnosis that means each pole must be tested alone. A Hyundai quick-charge patent does this once a session ends, with charge current already below about 5 A: it keeps one charge relay on, switches the other off and reads the inlet voltage, which must fall below the 60 V level that permits unlocking the connector. Under CARB, charging faults that stop the battery from charging must be detected. Specific faults: P2D71–P2D76.
- What you may notice
- One charging mode unavailable
- Charging connector may stay locked after a session
- Driving unaffected
- Likely causes
- PossibleDefective coil or contacts of minus contactor D
- PossibleWiring or connector fault on the contactor D circuit
- RareFault in the switching module
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €1,800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.