2003 ram 2500 diesel have tail light issue squeezed relay they worked took apart fuse box for "corrosion possible issues" circuit board looked fine put back together re installed Soon as I attached battery wiper started and rested in vertical position lots of dash lights on ,would not start !! Repeated again (just in case I overlooked something) I tried it again SAME SO I Bought from reputable ram dismantler another box that he took from a working running 2003 diesel I Installed it ,same thing ??The truck ran perfect before I took out fuse box except for running lights I am at a loss any positive thoughts would be appreciated Alberta truck not much rust