P0D23Battery Charger A Output Shorted
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- P0D23 points to a short on the high-voltage output side of the on-board charger. GM runs this check while the charger contactor is only in its precharge state and the multi-purpose contactor is open, a moment when almost no current should flow on the charger bus. If more than 0.35 A is measured there in four of five samples at 100 ms, with system voltage above 9 V or 10.2 V, the code is set as One Trip Type A in the Chevrolet Volt from 2011 and the Cadillac ELR up to 2016. The test is skipped while output current sensor faults are active or while thermal conditioning runs. A current at that stage suggests an internal short in the charger output, a damaged high-voltage cable or a stuck contactor path. Charging is blocked. Current deviations during normal charging are P0D22.
- What you may notice
- Charging refused immediately after plugging in
- MIL on at once
- Likely causes
- LikelyInternal short in the charger's high-voltage output stage
- PossibleDamaged high-voltage cable between charger and battery
- RareCharging contactor path conducting when it should not
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.