P00CCFuel Volume Regulator Solenoid Supply Voltage Control Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- The fuel volume regulator is the solenoid valve that meters how much fuel the high-pressure pump delivers (metering unit on diesels, pump control valve on some gasoline direct-injection engines). Many control modules switch such solenoids on both sides; P0001 to P0004 cover the control side, while these codes cover the supply side (high-side driver). P00CC reports a short to ground on the supply side. Rail pressure may then deviate, with reduced power or hard starting. None of the published manufacturer documents searched uses this code; the explanation follows regulations and comparable manufacturer monitors.
- What you may notice
- Check engine light on
- Loss of power or limp mode
- Hard starting or jerking
- Likely causes
- LikelySupply wire chafed and shorted to ground
- PossibleRegulator coil open or shorted (often built into the pump)
- RareHigh-side driver in the engine control module faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.