P0EA3DC/DC Converter Current Sensor C Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0EA3 marks a current sensor C signal above the top of its accepted window. Electrically this means the signal line touching a voltage source, an open sensor ground or a failed output stage of the sensor; a genuine overcurrent of the converter is a different matter and has its own code, P0D33. No manufacturer documents P0EA3 publicly. Mercedes-Benz illustrates the fault type on the first current channel of the converter in the EQB and the G-Class, which logs P0E5400 for a short to plus; in that bulletin the entry comes from a wrong wake-up of the converter rather than from damaged wiring; a converter reset ends the error state. Ford treats raw current signals above 6.0 V as faulty. If only sensor C is affected, its path is the suspect. The low fault is P0EA2.
- What you may notice
- 12 V or high-voltage warning in the cluster
- Converter output stopped
- Reduced performance possible
- Likely causes
- LikelySensor C signal shorted to supply
- PossibleOpen ground of the current sensor
- RareConverter error state after wake-up
- 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: €60 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.