Freightliner dome light won't turn off

You don't know who is SAM Cab ? He is the one who f**** Cascadia owners . There is one more bad guy. His name is Sam Chassis, the cousin of Sam Cab. This one first f***** and then tortures ...

 

I had funny day last week. I was doing pickups in Lost Angles. Suddenly the windshield washer pump turned on and started pumping the fluid. I stopped and turned off the truck engine. it did not stop the pump. I could not disconnect the pump because it is not reachable( its located somewhere under cab ). the next step was looking for fuse. Again no luck. that circuit does not have a fuse according to diagram. the pump worked dry about 20 minute and stopped. Rest in peace dear pump we will remember you forever ! I started driving and about 30 minute later the electric horn started. I was in traffic on I-5 . the traffic was almost stopped near commerce, ca. ))))) the front car driver showed me finger..)))) the next car's lady driver was looking at me and I guess she was thinking that I am crazy or an ideot... the horn stopped after 10 minute latter... something happened to sam cab but I don't know yet what was wrong.

 

You ever get that fixed? Mine just did the same thing. Plus I lost function of some dash buttons. 13 cascadia

 

U ever get that fixed? 13 cascadia doing the same

 

try to disconnect all positive cables on batteries and connect back in 3-5 minutes.. sometime works. do you have any led bulb installed in cab lights? sometimes led bulbs give error to sam cab.

 

Find out what the issue was? 14 Cascadia is having the same issue. My company shop can’t figure it out.

 

It's corrected itself for most part but only thing I could figure out was moisture was getting into the sam cab (fuse box) I would turn the main disconnect off when truck would sit more than 34 hrs. That reset the ecm

 

This just happened to me. Its some kind of Digital malfunction in my 2018 Cascadia. Cut the power(shut off switch) for 30min flipped it back on and works fine now. It was accompanied by a check engine light and several other switches not functioning properly.