[bruceostern]

2017 winnebago Fuse that all of a sudden wont start….. lights,windows, mirrors, dash, etc all work but when i check the ccp…. lower reads 12. or so, upper reads 0….. can you lead me to the correct answer…. i do not pretend to be mechanic but cat think of having it towed! maybe some HELP!

 

[Michael Ophus]

It should be throwing a fault code, Without a code it is hard to make a diagnosis.

https://www.kbb.com/obd-ii/on-board-diagnostics-guide/

 

[rich446]

Check out this video it might be a fuse underneath the drivers seat. It can blow when cranking with a low battery and the transit battery doesn’t like sitting for more than a few days without the battery running down. Ask me how I know 🥲

 

[square1]

2017 standardly comes with just 1 live CCP.
12 colts typically isn't enough. Charge the battery / jump start it

 

[bruceostern]

This is a 2 chassis battery, 2 house battery system with a boost switch to help start if chassis doesn’t start it… that doesn’t do it, nor jumping! I’m stumped and locally I haven’t found any mobile service to check it out

 

[square1]

"lower reads 12. or so"
What voltage are you getting at the larger post under the hood? Does the voltage go up when it's jumped? Having as much battery as you do, it may take considerable time to get the voltage up enough to start it. I have that problem with my diesel pick up if the I don't hook-up the tender and the batteries get low.