P0DFEBattery Charger Coolant Control Valve Control Circuit Low
- Generic OBD-II code · Powertrain
- How the car detects it
- P0DFE means the control line of the charger coolant valve reads low, usually because it is shorted to ground somewhere between driver and valve. No manufacturer documents P0DFE publicly. GM's 2011 Volt tables show how such a check works on battery coolant valve A (P0CE2): with system voltage above 9 V and the valve commanded in reverse, a low sense level on drive 1 counts as a failure, and the code needs a fault in 90 of 100 checks spaced 6.25 ms apart before it is set as a two-trip Type B code. For the charger valve a similar logic is likely but not published. A ground short typically freezes the valve where it is, so the charger may be left without coolant and lower its power. Look for chafed wires and wet connectors. Open circuit is P0DFD.
- What you may notice
- Reduced charging power, longer charging time
- Charger warning or charging stops
- Driving normally unaffected
- Likely causes
- LikelyControl wire chafed through and shorted to ground
- PossibleCoolant or water in the valve connector
- PossibleInternal short in the valve actuator
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.