Is your fix still working? It all just started on my 2007.
First I had it momentarily shut down and cycle all the gauges and door locks and shut of headlights at highway speed. It came back on its own.
Now having trouble starting. Leave it for a while or turn key second or tenth time and it fires right up.
I've changed the battery, and it was good for a few days now I have the starting issue again. I've checked the wires and they seem fine? Mega fuse is good, ground to block is good, Connections to mega fuse and fuse box is good. ????