Okay now it does seem you have electrical issues! When I ran into problems like that...completely unhook the power from the batteries.
Go to all the main plugs especially where you noticed the corrosion pull the plug apart and clean all the terminals add dielectric grease to the terminal ports and pins and reconnect the plug. Do this with all the plugs and connections throughout the coach!
If you are still having an issue you will need to also look for mouse chews in the harness due to them sitting a lot. These are just suggestions to help aid in locating the problem.
In some cases I have had to replace either the tcm or the harness itself and that can be quite a job if it is the harness.
Hope this helps a little more!
LIFE IS GOOD!!!!LIVING IT!!!!
2005 41' Atrium 8410 SE CAT
2017 20' weller's inclosed trailer
2014 Streetglide Special
2010 mini cooper
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