Visually inspect the isc valve if necessary.

Throttle body inspection and cleaning
Throttle valve synchronizationDTC “c31” (p0705): gp switch circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
No gear position switch voltage
Gp switch voltage is not within the following range.
Gp switch voltage > 0.6 V
Gp switch circuit open or short.
Gp switch malfunction.
...
DTC “c93” (p1769): steering damper
solenoid valve circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
C93
Steering damper control current does not flow to
the solenoid valve. With ig turned on, ecm
detects a failure of internal circuit element.
Solenoid current does not converge to the ...
Crankcase breather (pcv) hose inspection
Inspect the crankcase breather (pcv) hose in the
following procedures:
lift and support the fuel tank with the prop stay.
Refer to “fuel tank removal and installation” in section 1g .
Inspect the crankcase breather (pcv) hose (1) for
wear and damage.
If it is worn or damaged ...