C0061Chassis
ABS hydraulic unit valve malfunction
Where to start
A valve in the ABS hydraulic unit. This is no longer wiring but the unit itself, and there is nothing to fix at home. ⚠️ But before agreeing to replace the hydraulic unit — not a cheap item — make sure there are no wheel sensor or power supply codes: the unit sometimes blames a valve when it is short of voltage.
A code is not a diagnosis. It says which check failed, not which part to replace. Clearing it without repair only means the car will report it again in a few trips.
How to put together a report a mechanic will actually read
We have a detailed piece on thisWhy a scanner does not show ABS, airbag and gearbox faults
How the code is built
Letter — the systemChassis: brakes, ABS, suspension
Common or the maker's ownGeneric code: the same on every car
Number of the faultThe serial number inside that group — it does not say how serious the fault is
All codes in «Brakes, ABS and stability control»
How the app helps
CarScan reads this code from your car through an OBD-II adapter, shows whether it is active now or only stored, names the module that reported it, and puts it into a plain-text report for your mechanic.