Does it have a passenger a/c heater control on the roof?
Battery is a year old and yes cleaned and tightWhat is the age and condition of the battery? Are the connections clean and tight? Chrysler control modules do not tolerate low voltage conditions and all sorts of weird and random stuff happens.
Its a 2016 chrysler tiwn and country. We arent getting codes dash is lit up with no bus.Need to check it with a scanner to see what codes it's throwing. Needs to be a scanner capable of reading all systems. If you don't have access to one, you can get AlfaOBD and a Veepeak OBD adapter and have that capability for under $100.
Pay special attention to codes that start with a U. They will throw in any system. Make note of what system you read each code in. If multiple systems report a communication error to a single component, that is likely the source of your issue. Check the wiring to that component before replacing it. Try cleaning the contacts and see if that resolves the problem.
If that doesn't get you going, come back and tell us what codes you found and where from. I can get diagrams and procedures to help you if I know what area you need to look at. Oh, and although they are pretty similar, the year (and engine if 08-10) would be helpful info.
Need help. Husband is tech savvy and this has him frustrated. Got in one morning and all lights on dash lit and bus error. He has taken this van apart and replaced the tcim and then disconnected one module at a time. 4 days later no idea where or what is causing this and havent been able to narrow it down.