OK my son's 2004 Pilot had a loose positive terminal. No big deal. I tightened it (sparked a few times while turning the wrench) then it starts up ON ITS OWN. Freaks the heck out of me. I put the key in and turn it 'on' and then 'off' but it keeps running. Hit the brake and it stops but then the dash lights and parking lights are flashing. Now it won't start. The lights continue to blink, but no start. I CAN get it to start by disconnecting and reconnecting the battery. To me, everything points to a theft prevention or auto start issue but we got this used with no key fobs or anything. Any thoughts?