P0D4CBattery Charger Hybrid/EV Battery Output Voltage Sensor Circuit
- Generic OBD-II code · Powertrain
- How the car detects it
- P0D4C is the general circuit code for the sensor that reports the DC voltage the on-board charger delivers to the high-voltage traction battery. No manufacturer documents P0D4C publicly; GM (Volt, ELR) and Mitsubishi (Outlander PHEV) split electrical faults of this measurement into the low and high codes P0D4E and P0D4F instead, and GM's Volt checks plausibility with P0D4D. CARB requires plug-in hybrids to detect charger faults that stop or limit charging, which is why such a sensor is diagnosed at all. The code points to an open or otherwise unusable signal path, usually inside the charger itself. Driving normally remains possible, but AC charging is typically refused until the fault is cleared.
- What you may notice
- Plug-in charging does not start or stops shortly after starting
- Charging system warning in the instrument cluster
- Vehicle can still be driven on stored energy or fuel
- Likely causes
- LikelyVoltage sensing electronics inside the on-board charger failed
- PossibleInterrupted signal path or poor internal connection in the charger
- RareCharger software fault, fixed by reprogramming
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.