I’m having the same problem in my 2017 California Special Mustang GThello everyone.
I own ecoboost 2017 and today had a problem.
After driving home my car didn’t start.
No error codes (dtc is clear).
Battery is ok (car is opening, music ands lights working)
After push the start button- it starts clicking and then shutting down. After few seconds starts the ON mode, but not the engine.
What it could be?