P0D0CBattery Charging System Positive Contactor A Control Circuit Low
- Generic OBD-II code · Powertrain
- How the car detects it
- P0D0C stands for a control line of positive charging contactor A that reads too low, usually a short to ground or a driver output pulled down. When the coil is fed through a high-side driver, a grounded line leaves the contactor without power or overloads the driver. No manufacturer documents P0D0C publicly. GM states that its own Volt check for this contactor, P0D0A, cannot detect a short to ground, so the documented tests do not cover this case; CARB requires the charging system of plug-in vehicles to be monitored. Chafed harness sections near the battery or charge inlet and water in connectors are the usual causes. High readings are P0D0D, opens P0D0A, the negative side P0D13. The typical result is a charging session that will not start.
- What you may notice
- Charging does not start
- Charging system warning
- Likely causes
- LikelyControl wire chafed through and shorted to ground
- PossibleMoisture in a connector creating a path to ground
- RareShorted contactor coil
- 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.