Obdaryn

P0EA0DC/DC Converter Current Sensor C Circuit

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Matters for the ITP
  • Can trigger limp mode
How the car detects it
P0EA0 covers circuit faults of a third current channel inside a DC/DC converter, sensor C. Converters with several phases or with separate input and output sensing can carry more than two current channels; the letter C simply names the third. It is used when that reading is missing or cannot be decoded and no sharper diagnosis fits; plausibility, too-low, too-high and unstable signals have P0EA1 to P0EA4. No manufacturer documents P0EA0 or any other sensor C current code in public sources. Ford's hybrid summary describes the kind of current input check involved, where the raw value must stay between 4.5 V and 6.0 V and the offset at power-up under 15 A. Such checks are mandatory under CARB. The equivalent codes for channels A and B are P0E51 and P0E9B.
What you may notice
  • Warning for the high-voltage or 12 V system
  • Converter limited to a reduced output
  • MIL depending on the manufacturer
Likely causes
  • LikelyDefect in the converter's third current sensing channel
  • PossibleDamaged connector or wiring on the sensor C path
  • RareSoftware fault in the signal evaluation
Inspection (ITP)
Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
Repair
Workshop only · Usually a job for a workshop.Typical cost: €100 – €2,500

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.