P0EA4DC/DC Converter Current Sensor C Circuit Intermittent/Erratic
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0EA4 ends the current sensor C series and describes a signal that wavers or breaks off momentarily instead of failing steadily. No manufacturer documents P0EA4 publicly. A comparable published fault exists for the first channel: FCA bulletin 08-333-25 covers P0E55-00, the erratic code of current sensor A, on the 2025 Ram 1500 eTorque V6: there the 12 V battery loses charge, in bad cases until the pickup has to be towed, and FCA answers with a software update of the battery pack controller (BPCM). A software check is therefore worth doing before any part is replaced. CARB obliges makers to supervise such inputs. On the hardware side, a loose plug, a damaged pin or a joint that opens with temperature changes are the usual causes. Steady faults of sensor C are P0EA0, P0EA2 and P0EA3.
- What you may notice
- Sporadic warnings without a lasting fault
- 12 V battery not kept fully charged
- Start-stop occasionally disabled
- Likely causes
- LikelyLoose plug or damaged pin on the sensor C path
- PossibleOutdated control software evaluating the signal too strictly
- RareConnection that opens with temperature changes
- 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: €50 – €2,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.