P0D14Battery Charging System Negative Contactor A Control Circuit High
- Generic OBD-II code · Powertrain
- How the car detects it
- P0D14 is set when the control line of negative charging contactor A reads too high, for example through a short to the 12 V supply or a driver stage that will not switch off. That can keep the coil energised and the contactor closed without a command, so the module blocks charging. No manufacturer documents P0D14 publicly; on the Volt and ELR GM counts a short to power under P0D11 and detects it when the off-state output stays close to supply voltage. CARB requires plug-in vehicles to monitor charging components. Chafed or crossed wiring and a failed driver are the main causes. The low case is P0D13, a welded contactor P0D0F, the positive side P0D0D. Repairs belong in the hands of high-voltage trained staff.
- What you may notice
- Charging blocked
- Charging or high-voltage system warning
- Likely causes
- LikelyControl wire shorted to a supply voltage
- PossibleDriver stage in the control module stuck on
- RareOpen ground return of the coil letting the line float high
- 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.