If they show any damage, replace it.

Caliper Fluid Seal Damage
Caliper Piston and Cylinder DamageUpper Fairing Assembly Removal
Remove:
Lower Fairings (see Lower Fairing Removal)
Center Inner Fairing (see Center Inner Fairing Removal)
Upper Inner Fairings (see Upper Inner Fairing Removal)
Windshield (see Windshield Removal)
Disconnect the front turn signal light lead connector [A]
(both sides).
Remove the bo ...
Solenoid Valve Inspection (Service Code b 13, b 14, b 17, b 18)
The solenoid valve is built in the KIBS Hydraulic Unit [A].
Therefore the solenoid valve cannot be checked directly.
Perform the Pre-Diagnosis Inspection 1 and 2 (see Inquiries
to Rider in the Brakes chapter).
If any of these service codes appears even if all checks
are ended, replace t ...
Amplifier Input Voltage Inspection
NOTE
Be sure the battery is fully charged.
Turn the ignition switch to OFF.
Remove the upper fairing (see Upper Fairing Removal in
the Frame chapter).
Do not disconnect the connectors.
Connect a digital meter to the amplifier connector [A] with
needle adapter set.
Special To ...