freightliner cascadia 2013 isx15 cm2250.

[trucklogger2]

Homer Hogg talked about this truck and the different control modules it has. There is one in the dash on the passenger side that may get moisture into it from a leaky window (?) I think. And this is a common problem. Access is through the glove box I believe. Maybe search chassis control module online? https://www.cengage.com/resource_uploads...77107.pptx