P0EA0 DC/DC Converter Current Sensor C Circuit

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.

Likely causes

Symptoms

• Warning for the high-voltage or 12 V system
• Converter limited to a reduced output
• MIL depending on the manufacturer

Repair estimate

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

Related codes

References: law.cornell.edu, fordservicecontent.com.