P0D0BBattery Charging System Positive Contactor A Control Circuit Range/Performance
- Generic OBD-II code · Powertrain
- How the car detects it
- P0D0B reports that the control circuit of positive charging contactor A works electrically but does not behave plausibly – coil current or line voltage outside the window expected for the commanded state, or a response that comes too slowly. No manufacturer documents P0D0B publicly. The nearest documented test is GM's P0D0A on the Chevrolet Volt, which matches commanded and actual driver state and judges coil current, and CARB requires plug-in vehicles to check charging components for circuit and rationality faults. Typical triggers are contact resistance in connectors, a coil whose resistance has drifted, or a weakening driver stage. Opens are P0D0A, low and high signals P0D0C/P0D0D, mechanical sticking P0D08/P0D09. Charging may work only now and then or be refused.
- What you may notice
- Charging sessions fail sporadically
- Stored code, possibly with a charging system warning
- Likely causes
- LikelyContact resistance or corrosion in the control circuit connectors
- PossibleContactor coil with changed resistance
- RareWeakening driver stage in the control module
- 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.