im new to this page and this is my first durango so hopefully this is the right section but i have a 99 5.2 4wd. one day it wouldnt start this is before i knew about the no bus problems they have. i put a fuel gauge on it and had no pressure so i put a pump in it. after the pump it ran for a little bit then stopped. noticed the no bus message. started researching and thats where the nightmare began. saw a video to check for 5v reference at tp sensor so i did and i had my 5v. actully i checked 5v at all the 5v sensor and they all were good. saw a few videos saying that the pcm was usually the problem because of over heating so i put another pcm in. still didnt work but thats when i noticed if i unplug the c1 connector from the pcm and plug it back in everything comes to life. so i started checking power and ground both were good. if the connector is plugged in and i wiggle the wires i cant make it work but if i unplug it and plug it back in presto all works. when the no bus is present it seems like everything works but the fuel pump so i thought maybe that is what was bringing down the pcm. i unplugged the fuel pump and tried but still get the no bus. any ideas or suggestions?

 

Clean the connectors at the PCM. See if that doesn't help.

 

found problem in joint connector #3 under dash had corrosion inside of it cleaned out and problem seems to be solved been driving truck since last thursday. figured i would post what i found and maybe it could save someone else some headache