on the 4 door I have here the ecm and the two relays are about two inches appart, I would pull the ecm and smell it, if it smells ok put it back in and then pull the relays and try to open them up and look inside them to see if the contacs are ok, on my samurai the ecm relay turns on the ecm power and then the fuel pump relay gets its power from the ecm so swapping out the relays will not work if one is bad, hope that helps.