P0D51Battery Charger Hybrid/EV Battery Output Current Sensor Circuit
- Generic OBD-II code · Powertrain
- How the car detects it
- P0D51 covers a circuit fault of the sensor that measures the direct current the on-board charger pushes into the traction battery. No manufacturer documents P0D51 itself. GM's charger module for the Volt and ELR and Mitsubishi's Outlander PHEV use the low and high codes P0D53 and P0D54 for electrical faults of this sensor, and Mitsubishi adds P0D52 for an offset check. Without a usable current value the charger can neither regulate charging current nor prove that its output power matches its input, a check GM performs under P0D5C. CARB obliges plug-in hybrids to detect charger malfunctions that prevent or slow charging. Expect AC charging to be blocked while the vehicle itself keeps driving.
- What you may notice
- AC charging does not start
- Charging system warning shown
- Driving not affected
- Likely causes
- LikelyCurrent sensor or its evaluation circuit in the charger failed
- PossibleOpen signal path between sensor and charger controller
- RareCharger software fault
- 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.