C0569 code meaning
Brake Booster Solenoid Circuit Performance
What C0569 means
C0569 covers booster solenoid faults that are neither a clear open nor a clean short: the circuit reacts, but not as the module expects. Ford's hybrids (2015–2019) run three checks during operation, each over 80 ms: more than 2 V over the low-side driver while the high side is off, less than 160 mA in the test pulse with the high side on, or under 3.0 V supply with the high side on. Pump motor faults C052B–C052E block this test. A partly corroded connector or a coil with drifting resistance is the usual cause. GM used C0569 for something else entirely – a system configuration error in the transfer case module (PIP5089A) – so check the brand before diagnosing.
C0569 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 C0569
- Intermittent brake system warning
- Brake assist occasionally unavailable
- Code returns after clearing
Common causes of C0569
- Most likelyCorroded or loose terminals adding resistance in the solenoid circuit
- PossibleSolenoid coil with out-of-range resistance
- Less likelyDegraded driver stage in the ABS module
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 C0569 means
| C | Chassis system: brakes, ABS, steering and suspension. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 69 | The exact fault in that area. |
What to do next
- Note C0569 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 C0569
What does C0569 mean?
C0569 means "Brake Booster Solenoid Circuit Performance". C0569 covers booster solenoid faults that are neither a clear open nor a clean short: the circuit reacts, but not as the module expects. It is a generic code, so it means the same on every make.
Is it safe to drive with C0569?
Drive gently and only to a workshop. With C0569 the car can go into limp mode (reduced power) to protect itself.
Will C0569 fail an emissions test?
C0569 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 C0569 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will C0569 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.