Lose Power Steering problems of the 2014 Dodge Journey

My vehicle has shut off without warning three times in the last month. All three times were at low speeds while pulling into a driveway. I then put it in park, pressed my ignition button to off, then pushed the ignition button with my foot on the brake and it started all three times on the first attempt. When it shut off, I lost power steering all three times, so thankfully I was at low speed. I do currently have code p0016 when I scan it with my reader. I had a local mechanic change 1 of my camshaft position sensors because that is what autozone recommended. That didn't solve anything. Then I made an appointment at Dodge of bloomington, mn to have a lugnut repaired and my check engine light further diagnosed. They replaced the lugnut but told me they didn't have time left in the day to look at light, and said no rental vehicles were available, which is odd considering the 500 vehicles in their lot. So I made an appointment at coon rapids Chrysler and they dug around for three hours, told me they couldn't find anything but charged me $500. Again no rentals here either. How far do we dig, I have 297,000 miles but other than this recent issue, vehicle has been good. Happy to include anything extra you would like. I did have coon rapids Chrysler replace a camshaft in spring of 2019 when engine was ticking. That solved the ticking. I did notice my tick is back to about 75% of the sound it was in the spring after my November 29th attempted diagnosis at coon rapids. Typing on my phone, so I apologize for a few missed capitalizations. First shutoff was November 15th, recent one was December 15th and then one in between.