P2E4FBattery Charger Coupler Temperature Sensor D Circuit
- Generic OBD-II code · Powertrain
- How the car detects it
- P2E4F is the general circuit fault of the fourth inlet temperature sensor, used when the wiring is clearly wrong but not classed as low, high or implausible; the D row has no intermittent code either. Ford is the one maker whose public papers show a sensor D in use: SSM 55080 names P2E53, the overheating verdict for point D, stored in the secondary OBD module (SOBDM) of the Mustang Mach-E, E-Transit and F-150 Lightning, so that module reads sensor D. Ford does not publish P2E4F or say which pin D watches. A fourth point makes sense because, as TE patent US11329436 puts it, each DC contact above 200 A needs its own monitoring and a 90 °C contact must be reported within 30 s. On the smart with 22 kW charger, Mercedes traced inlet sensor codes to loose low-voltage plugs at the charger (LI54.10-P-067823).
- What you may notice
- DC fast charging refused or limited
- Charging warning in the cluster
- Fault may only show with a warm or cold inlet
- Likely causes
- LikelyLow-voltage connector between inlet harness and evaluating module loose (smart for sensor A)
- PossibleSensor D wiring chafed or broken
- PossibleTemperature element D failed (normally replaced with the inlet)
- RareMeasuring input in the SOBDM or charger 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.