Testing The Throttle - E-Wheels EW-46 Service & Repair Manual

Testing the Throttle:

The throttle responds via a hall effect positioning sensor. The sensor increases its output voltage
the more the throttle is pulled. To test this sensor, start by turning the scooter on. Next, set your
multimeter to DC 20 volts (or closest setting). While leaving the scooter powered on, and
ensuring the throttle to harness, harness to controller, and controller to motor connections are
plugged in, insert the multimeter red lead into the throttle connections red wire, and the black
multimeter lead into the throttle connections black wire. The voltage reading should be around
.82 volts when the throttle is not being pulled
(no load).
If you are getting the correct voltage with
the power turned on, without pulling the
throttle (no load), then the next step is to
check the throttle voltage under load
(while pulling the throttle). The voltage
should increase to around 3.51 volts under
full load (while fully rotated). The scooter
should engage forward when the voltage
rating hits approximately 1.54 volts. If all
steps above are followed, and the scooter
is not driving, the throttle is not the
component causing the problem.
If the throttle is not working properly,
please contact EWheels service
department directly for a replacement.
6