P2DD3Control Pilot Charging Switch B Stuck Off
- Generic OBD-II code · Powertrain
- How the car detects it
- Stuck Off: although the module orders charging switch B to close, nothing changes on the pilot; the voltage sits near 9 V, the plugged-in level, rather than dropping to about 6 V. Through this switch the station thus never sees a request for energy. A contact or relay that will not close, a broken 1.3 kΩ resistor or an error in the pilot measurement can each cause this. CARB generally treats a missing functional response to a command as an output component fault, and its plug-in section adds charger faults that stop charging. No manufacturer documents P2DD3 publicly. The opposite case is P2DD4; circuit faults are P2DCE to P2DD1; the switch A equivalent is P0CFD. At the station the car is recognised and may show as plugged in, yet no energy flows.
- What you may notice
- Car recognised at the station but no charging
- Charging error message
- Likely causes
- LikelySwitch or relay B no longer closing
- PossibleOpen resistor in the charge-request branch
- RarePilot voltage measurement in the module faulty
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.