How to Test Your E-bike Thumb or Twist Throttle and Controller Output Voltage

By creating a tap into the throttle cable, one can measure the output 5 volts from the controller and then measure the signal voltage when the throttle is activated to see if the signal voltage is equal to the controller 5 volts. If the voltage is non existent or under 5 volts, get a new throttle!! link to throttle extension 3 pin cable:
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