P2E52Battery Charger Coupler Temperature Sensor D Circuit High
- Generic OBD-II code · Powertrain
- How the car detects it
- P2E52 is the mirror case of P2E51: the sensor D input sits above its valid band, usually because of an interrupted sensor lead, a connector that has backed out, or a short to a supply line. Volex quotes for its NACS inlet NTC thermistors with an operating range of -40 to +125 °C; an open NTC loop looks like a contact colder than that range, which hides any real heating. With a PT1000 an open loop looks like a hot pin and stops charging at once. Only Ford is known to read a sensor D, as its bulletin on overheating code P2E53 shows, but it gives no thresholds or details for P2E52. CARB asks for circuit checks on input components and, on plug-in hybrids, for detection of charger faults that stop or slow charging. Real overheating at point D is P2E53.
- What you may notice
- DC fast charging does not start or stops at once
- Charging warning message
- Inlet temperature reading fixed at an extreme value
- Likely causes
- LikelySensor D lead broken or connector backed out
- PossibleSignal wire shorted to a supply line
- PossibleTemperature element D open inside the inlet
- RareMeasuring input of the evaluating module defective
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.