OBD-II code · Chassis
C0569 Brake Booster Solenoid Circuit Performance
Brake booster solenoid does not respond mechanically as expected. Boost control tracks commanded vs. actual manifold pressure; persistent deviation means wastegate, vanes, hose or actuator are not delivering the requested pressure.
Is it safe to drive with C0569?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySolenoid stuck mechanically
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Brake Booster Solenoid
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.