X1 Stealth Gen 3: PAS not working

Reason

Torque Sensor, Controller

Solution 

Please check the following: 

1. Is there a Cadence RPM reading on the CYC Ride Control app? If yes, is it accurate or is it clearly inaccurate? 
2. Is there a Human Input reading on the app?  

If the Cadence RPM is still getting a reading even though it's not accurate, it means that there is still a communication signal from the controller. In this case, the TS (torque sensor) needs to be replaced.  

If the Cadence RPM reading is 0, look for other signs of controller failure. 

Signs of controller failure include things like not being able to connect to the app, other strange readings, odd power delivery, etc. 

*NOTE: Cadence RPM can also be seen on the DS103 and SW102 displays. Human Input can be seen on DS103 but NOT on SW102. 

How can we know this? 

The Human Input reading is calculated as follows: 
(Nm x Avg. Cadence)/ x.xxx 

Thus, if there is no torque input, then the Human Input reading will be "0".