C0567Brake Booster Solenoid Circuit Low
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- C0567 flags the brake booster solenoid circuit as too low – typically a short to ground on the line between the module's high-side driver and the coil. Ford describes the check in its 2015–2019 hybrid summaries: with both high-side and low-side drivers switched off, the module measures the voltage on the solenoid supply; below 3.0 V for 380 ms the fault is stored, and Ford's hybrid powertrain module shows it as C0567 (ABS module code C0022). Because a grounded line can overload the driver, the module stops using the solenoid. Brake assist from the booster then fails and hybrids lose part of the blended braking. Look for chafed harness near the booster or water in the connector before replacing the booster.
- What you may notice
- Brake system warning lamp
- No automatic brake assist
- Less regenerative braking on hybrids
- Likely causes
- LikelyChafed solenoid wire shorting to body ground
- PossibleMoisture or corrosion bridging the connector pins
- RareShorted solenoid winding inside the booster
- Repair
- Medium · Usually a job for a workshop.Typical cost: €40 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.