Hey all new to the forum. I have a 2011 ram 2500 6.7l cummins . My heater fan/blower and radio only work sometimes. It was doing the same thing of and on about a year ago and they worked steady for a long time until about a month ago when it started again. Sometimes they come on when you start and sometimes not. Sometimes they’ll come on later as I’m driving and sometimes not. It’s always both of them at the same time so I assume they share something in common in the wiring harness or tipm. I have an after market remote start too that doesn’t seem to be working either but can’t be sure it is linked . I replaced the WIN module because i found a broken piece inside that wouldn’t lock key in but it wasn’t the cause . I removed tipm and cleaned it up but no difference. Also no codes or check engine light. I couldn’t find anybody with the same problem in any posts. Any thoughts or tips.