Is the CrankShaft Sensor the cause of a crank no start issue?

Short answer is yes it does. The starter will turn the engine over but the ECM needs to know engine position in order to fire the plugs and injectors.

Here are a couple guides that will help with more info on this:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Below is the process from the manual that will give the detail needed in order to replace it if needed.

Please let us know if you have other questions. Thanks