Obdaryn

P0D40Battery Charger A Input Voltage Sensor A Circuit High

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
How the car detects it
P0D40 is the high-signal fault of the charger's input voltage sensor. GM's Volt charger module (2011 and 2014 tables) sets it when the measured AC peak exceeds 422 V for 160 of 200 ms and lights the MIL as a Type A fault; in the 2016 and 2019 Volt the controller reads a duty-cycle signal and fails it at 92 % and above or at a constant 0 %, Type B over two trips. Mitsubishi's 2022 Outlander PHEV reads a sensor voltage above 3.161 V, corresponding to more than 492 V, for 0.5 s as a short to power, stops charging and replaces the charger/DC-DC unit. Household and Level 2 supplies do not reach these values, so the sensor path or the signal line is normally to blame. P0D3F is the low counterpart.
What you may notice
  • AC charging is refused
  • MIL on (GM)
Likely causes
  • LikelyVoltage sensor signal shorted to supply inside the charger
  • PossibleOpen duty-cycle signal line between charger and controller (2016-2019 Volt)
  • PossibleFailed on-board charger
Repair
Workshop only · Usually a job for a workshop.Typical cost: €100 – €2,500

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