05SG3 - X1 Stealth Gen 3: Throttle not working
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X1 Stealth Gen 3: Throttle Not Working


X1 Stealth Gen 3: Throttle Not WorkingSymptomsReasonChecklistSolutionIssue 2 - Throttle Voltage Issues (e.g. The bike is moving by itself)ReasonSolution


Symptoms

Your display is showing error 28 or when you press down the throttle, there is no power output from the motor.


Reason

  • Your throttle is turned off in the Ride Control app
  • Your throttle is not plugged in properly
  • The throttle has failed
  • The wiring harness is damaged
  • The controller has failed


Checklist

  1. Ensure that your throttle is enabled on the Ride Control app
    *If you have selected EU settings for your Photon or have the road legal firmware version uploaded, you may not be able to enable your throttle. No error should show on your display in this case. 


Solution

  1. Please connect to the CYC Ride Control app 
  2. Swipe left on the main dashboard to see the secondary dashboard that shows the “throttle-in” voltage. 
  3. Record what this voltage reading is. 
  4. Then, staying at assist level 0, press the throttle down fully & record what this voltage is. 
  5. Finally, unplug the throttle while staying connected to the app, wait a few seconds & check if the throttle voltage reading changes & record the value. 

We will need to know the reading for all three cases mentioned above. 


What if the throttle voltage reading does not change? 

If the throttle voltage is an abnormal value and/ or does not change regardless of attempting to set it up correctly, then there may be 2x potential causes: 

  1. The throttle is faulty 
  2. The controller is faulty 


Steps: 

  1. Keep the CYC Ride Control app connected and the throttle in voltage reading open. 
  2. Unplug the torque sensor & check if the voltage reading drops to approx. 0V. It may take a few seconds to register. 
  3. If the voltage drops accordingly, then replace the throttle (I.e. faulty throttle). 
  4. If the voltage does not drop and remains approx. the same value, then replace the controller (I.e. faulty controller).  



Issue 2 - Throttle Voltage Issues (e.g. The bike is moving by itself)


Reason

Throttle, Controller

When the motor is activated but the throttle is not pressed down (i.e. the bike is moving by itself) immediately when switched to assist level 1 or higher, it means that the throttle voltage is not correct. 


Solution

You will need to send both below instructions. The "Throttle Auto Setup" should work on the first or second try but does not always so it's important to also provide the manual steps. 


How to fix/ set up the throttle voltage using the CYC Ride Control app 

  1. Switch on the kit, connect to the CYC Ride Control app, & ensure that you keep the display in assist level 0. 
  2. Go to the Throttle settings page & select the "Throttle Auto Setup" function. 
  3. Follow the prompts accordingly & be sure to check that your throttle min & max voltage has adjusted after completing the "Throttle Auto Setup" process. 
  4. If the throttle voltages did not change, you can attempt the "Throttle Auto Setup again" or adjust the throttle voltages manually. 


To adjust the throttle voltages manually 

  1. Ensure you stay in assist level 0. 
  2. Go to your display's dashboard & slide to the left to see the secondary dashboard where you will find the "Throttle-In" voltage reading.  
  3. Write down the minimum value as it shows without pressing down on the throttle.  
  4. Now, press the throttle all the way down & write down the maximum value. Again, ensure your kit stays in assist level 0 to ensure that the power does not activate. 
  5. Next, go into the throttle settings section & adjust the minimum & maximum voltages accordingly.  
  6. For the Min Voltage setting: If your minimum voltage read was 0.7V, then input 0.9V. The minimum voltage should be 0.2V higher than the minimum value read. 
  7. For the Max Voltage setting: The max voltage should be equal to your or no more than 0.1V higher than the maximum read value.  


What if the throttle voltage reading does not change? 

If the throttle voltage is an abnormal value and/ or does not change regardless of attempting to set it up correctly, then there may be 2x potential causes: 

  1. The throttle is faulty 
  2. The controller is faulty 


Steps: 

  1. Keep the CYC Ride Control app connected and the throttle in voltage reading open. 
  2. Unplug the torque sensor & check if the voltage reading drops to approx. 0V. It may take a few seconds to register. 
  3. If the voltage drops accordingly, then replace the throttle (I.e. faulty throttle). 
  4. If the voltage does not drop and remains approx. the same value, then replace the controller (I.e. faulty controller).