P0E8BBattery Charger B Input Voltage Sensor Circuit
- Generic OBD-II code · Powertrain
- How the car detects it
- P0E8B covers an electrical fault in the voltage measurement at the input of charger B: the controller gets no valid reading of the supply voltage. Range, low and high faults of this sensor have their own codes, P2E84, P2E85 and P2E86; charger A uses P0D3D for its first input voltage sensor. Some code lists call it input voltage sensor A of charger B. No manufacturer documents P0E8B publicly. Ford checks the voltage side of charger B through P0E87 with a 450 V limit, which is a judgment of the value, whereas P0E8B means the value cannot be read at all. CARB expects such inputs to be monitored for circuit continuity and range. The sensing is usually built into the charger, so after ruling out connectors the charger is the likely part. Charging is blocked until the fault clears.
- What you may notice
- Plug-in charging is not possible
- Charging fault message or charge-port indicator signals a fault
- Likely causes
- LikelyVoltage sensing circuit inside charger B defective
- PossibleLoose or corroded connector, damaged sensing lead
- RareCharger software fault
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.