If your motorhome has an F-53 chassis like mine, remember that this chassis is used for a lot of vehicles other than our motorhomes. If you are looking at the wiring diagram for your motorhome, if it says UPS on it then its effective for only those vehicles manufactured for UPS. I've got the whole wiring diagram package for the F53 chassis and have to weave my way thru the effectivity for my motorhome. Just like on airplanes, there different wiring diagrams for different effectivities or customers.
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