2008 X5 3.0 won't start

[KWP1911]

My truck has just over 60,000 miles. we've owned it since about 7000 miles, so I know the care it's had.

Go out today to run some errands and it took a few presses of the start button to get it to run. The first couple of times, it would turn over, but only run for a second.

When I backed out of the garage into the driveway, it just stopped. I tried several more times, but this time it won't stay started long enough to get back into the garage. Then I got a message on the DIC that there was an engine malfunction and that ABS and DSC we deactivated.

Since there's a slight downward slope, I can't push it back into the garage. So, there it sits.

I put a code reader on it and got the following codes:
P1017 Valvetronic Eccentric Shaft Sensor Plausibility
P103A VVT-System Current Too High
P105B Internal Control Module VVT Error, Voltage Too Low
P1056 VVT Control Motor Bank 1 Supply Voltage Input Too Low

Anyone know what could be causing these codes? Do I just need a new battery?