i just replaced the pcm
in my dads 00 7.3 and after i did the headlights still work but non of the running lights will work all the connecters are together i checked all the fuses i tried the light switch in my 00 in his so the switch is good the only thing i can figure is theres a short sum where one of his tail lights didnt work before but i dont know why it would all of a sudden not work just cause its a different pcm
? could the pcm
have anything to do with it you think?