P2CC7Generator Inverter Power Supply B Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2CC7 is set when supply B of the generator inverter exceeds its upper limit. Gate inputs of IGBTs tolerate only a limited voltage, so overvoltage on the driver rail puts the switches at risk and the inverter is normally shut down. Ford shows that such rails have a hard ceiling: in its 2019 hybrid OBD summary a motor or generator gate drive supply above 15.08 V counts as a fault, although Ford reports it under a rotor position circuit voltage check, and for the variable voltage converter the window runs from 0.1 V to 15.3 V. No manufacturer documents P2CC7 publicly. A faulty internal regulator or a short between supply rails is most likely. CARB demands circuit monitoring of hybrid components. Siblings: P2CC5, P2CC6; supply A high is P0E11.
- What you may notice
- Hybrid system warning light and MIL on
- Generator blocked, battery no longer charged while driving
- Likely causes
- PossibleRegulator of supply B inside the inverter faulty
- PossibleShort between two internal supply rails
- RareOvervoltage in the 12 V system from a DC/DC converter fault
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €4,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.