16-62 ELECTRICAL SYSTEM
Automatic Turn Signal Canceling System
Automobiles use a turn signal canceling system actuated by steering wheel turn. But, motorcycles
turn with a bank additionally, and so have a smaller steer angle. This makes difficult to adopt an
automobile type turn signal canceling system because of inaccurate operation in motorcycles. So,
motorcycles adopt time & distance counting system.
The canceling system consists of a battery, turn signal control relay, distance sensor, and turn signal
switch. When the turn signal switch is pushed onto the right or left, the turn signals start flashing
and the control relay starts counting off 8 seconds. At the end of this time, the control relay starts
calculating distance traveled using pulses from the distance sensor in the speedometer. The control
relay keeps working even after the term signal switch was released and returned to the neutral position
by spring force. When the motorcycle has traveled an additional 65 meters (213 foots), the control
relay shuts off the current, turns off the turn signal lights, and resets itself.
If the turn signal canceling system does not function properly, first check all the wiring connections
Secondly, inspect the distance sensor.
Thirdly, inspect the turn signal switch in the left handlebar switch.
Lastly, check the turn signal control relay.