C0568 code meaning
Brake Booster Solenoid Circuit High
What C0568 means
C0568 is the high-side counterpart of C0567: the solenoid circuit carries voltage when it should be dead. In Ford's 2015–2019 hybrid logic both drivers are commanded off and the solenoid supply line must stay near zero; more than 3.0 V for 80 ms points to a short to battery voltage or a driver that will not switch off, and the hybrid powertrain module reports C0568 (ABS code C0022). The risk is a solenoid energised without command, which would add boost the driver did not ask for, so the module blocks the function. An Aisin patent explains why that matters: energising the valve alone raises the booster output. Check for a short to a neighbouring powered wire before suspecting the module.
C0568 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of C0568
- Brake system warning lamp
- Brake assist switched off
- Unusual pedal feel on hybrids
Common causes of C0568
- Most likelySolenoid wire chafed against a powered circuit
- PossibleHigh-side driver in the ABS module not switching off
- Less likelyContamination bridging pins in the solenoid connector
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Brake booster solenoid
What each part of C0568 means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 68 | The exact fault in that area. |
What to do next
- Note C0568 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about C0568
What does C0568 mean?
C0568 means "Brake Booster Solenoid Circuit High". C0568 is the high-side counterpart of C0567: the solenoid circuit carries voltage when it should be dead. It is a generic code, so it means the same on every make.
Is it safe to drive with C0568?
Drive gently and only to a workshop. With C0568 the car can go into limp mode (reduced power) to protect itself.
Will C0568 fail an emissions test?
C0568 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is C0568 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will C0568 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.