Ok so I have a 2001 edge v6 4.0 auto. So I took out my seats and took of the ground conected under the seats and the cables that go under the floorboards so then I got everything connected and the engine woudnt crank?( I made sure the ground I took off is touchong metal not the bedliner) so at first I heard a click now I don't hear anything I changed the starter amd ignition swith battery is good. All the inside lights work and when k tjrn headlights on they are nice and bright.. the teft light keeps flashing every 3 seconds even when the key is in on position

 

You'll probably need a ECM reset. I'm just guessing,...