Obdaryn

P0EE9Battery Charger Coupler Temperature Sensor B Circuit Low

  • Generic OBD-II code · Powertrain
How the car detects it
P0EE9 reports that the voltage of coupler temperature sensor B lies under its valid window. What that means thermally depends on the element. An NTC thermistor loses resistance when heated, so a low signal reads as an extremely hot pin. The PT1000 platinum sensors that Sailtran places at the DC+ and DC- contacts of its CCS2 inlet behave the other way round, and in a pull-up circuit a low signal looks implausibly cold. A short to ground pulls the line down with either type, and water in the inlet can do the same. No manufacturer documents P0EE9 publicly. Bentley's TPI 2075291/1 for the 2024 Bentayga Hybrid shows for sensor A that Low is P0D9B, even though the charger unit 00C6 showed the texts of Low and High swapped. P0EEA is the high-signal sibling.
What you may notice
  • Charging not started or stopped
  • Reduced charging power
Likely causes
  • LikelySensor B signal wire shorted to ground
  • PossibleMoisture or water in the charging inlet
  • RareShorted sensor element B
Repair
Medium · Usually a job for a workshop.Typical cost: €50 – €1,200

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.