

Terminal voltage check with a low battery voltage will lead to erroneous diagnosis.

Otherwise, accurate measurements may not be obtained and personal injury may result.
Electrical circuit inspection procedure
While there are various methods for electrical circuit inspection, described here is a general method to check for open and short circuit using an ohmmeter and a voltmeter.
Ecm / various sensors
Open circuit checkTire inspection
Inspect tire
every 6 000 km (4 000 miles, 12 months)
Tire tread condition
Operating the motorcycle with excessively worn tires will
decrease riding stability and consequently invite a
dangerous situation. It is highly recommended to replace
a tire when the remaining depth of tire tread reaches ...
Throttle body removal and installation
Removal
Remove the side cowlings. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Remove the air cleaner box. Refer to “air cleaner box removal and
installation” .
Remove the clamps (1).
Disconnect the iap sensor (2) from the vacuum
...
DTC “c40” (p0505 / p0506 / p0507): isc
valve circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
C40/P0505
The circuit voltage of motor drive is
unusual.
Isc valve circuit open or shorted to ground.
Air passage clogged.
Isc valve is fixed.
Isc valve prese ...