Engine cooling symptom diagnosis

Schematic and routing diagramDimmer / passing light switch inspection
Inspect the dimmer/passing light switch in the following
procedures:
remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Disconnect the left handlebar switch coupler (1).
(Yellow)
Inspect the dimmer/passing light switch ...
DTC “c28” (p1655): secondary throttle
valve actuator (stva) malfunction
Detected condition and possible cause
Detected condition
Possible cause
The operation voltage does not reach the stva.
Ecm does not receive communication signal from the
stva. Stva can not operate properly or its motor locked
Stva malfunction.
...
Lubrication points
Proper lubrication is important for
smooth operation and long life of
each working part of your motorcycle
and also for safe riding. It is
a good practice to lubricate the
motorcycle after a long rough ride
and after getting it wet it in the
rain or after washing it. Major
lubrication points ...