wire harness over behind washer fluid resevior... take resevior off and reroute that harness over the top /side of resevior... similar things happened to me ... although if it's the wire harness.. it could be anywhere... I just found the problem to be that area...
I had the power loss. like it turns off, once in a while... I mostly had all lights and radio flick off for 1-3 seconds then back on when I hit bumps.