Hyundai Sonata LF 2014-2019 Service Manual: Master Cylinder Repair procedures
Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the air cleaner assembly (A).
3.
Disconnect the brake fluid level switch connector (A).
4.
Remove the brake fluid from the master cylinder reservoir with a syringe.
†...
Hyundai Sonata LF 2014-2019 Service Manual: Relay Box (Passenger Compartment) Repair procedures
Fuse Inspection
1.
Be sure there is no play in the fuse holders, and that the fuses are held securely.
2.
Are the fuse capacities for each circuit correct?
3.
Are there any blown fuses?
If a fuse is to be replaced, be sure to use a new fuse of the
same capacity. ...