PrecautionsDTC “c21” (p0110-h/l): iat sensor circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
C21
Output voltage is not with in the following
range.
0.15 V ≤ Sensor voltage < 4.85 V
Iat sensor circuit open or short.
Iat sensor malfunction.
Ec ...
Starting the engine
Before attempting to start the
engine, make sure:
The transmission is in neutral.
The engine stop switch is in
the "" position.
Note: this motorcycle has a
starter interlock system for the
ignition and starter circuit. The
engine can only be started if:
  ...
Tp reset
When replacing the throttle body assembly or tp sensor
with a new one or reinstalling the tp sensor, reset the
tp learned value in the following procedures:
Note
keep the throttle valves fully closed while
resetting the tp learned value.
Turn the ignition switch on.
...