We should start with checking for any stored trouble codes in the vehicle. Many parts stores will scan vehicles for free. If the engine stalls you will loose power brakes in most vehicles because they use engine vacuum. You might have a throttle issues causing it to stall. These have electronic controlled throttle body assemblies and many times they have trouble from carbon build up. Let me know what repairs or maintenance has been done and how many miles.
There is a bulletin for the throttle body with some codes. You could try to clean the throttle body if there are codes related, sometimes this will fix the stalling. I use a soft pipe brush or rag and spray throttle cleaner into the throttle bore and clean the bore and the throttle plate.
lets start here
let me know what you find
THANK YOU for your efforts in analizing my car problem.
1. Why do the brakes not fail when you turn off the engine
in the normal manner?
2. How can I determine if the solution is successful without
driving the car and risking my "everloving life" ?
In your answer you write "see live data to confirm any
Please explain what you mean by this - perhaps an example.
I appreciate all your efforts.
With vehicles as advanced as your vehicle diagnostic equipment is very important. If a sensor is failing ,dirty it could cause the engine to stall. I did see a dirty MAF sensor cause a stall, air filter was changed and a small feather jammed into the sensor.