I have the same coach. I saw in another thread where you said you found an in-line fuse. There should be one in the fuse block under the dash pod too. When I was in the process of buying my coach (and going over it with a fine tooth comb), I noticed the previous owner had a piece of tape over the "Coach Heater" switch - I asked why. He said if he turned it on, it blew the fuse and the backup monitor stopped working. So I'm assuming they are on the same circuit, so there must be another fuse somewhere. I haven't done much investigation with it yet (the first thing I did was unplug the Coach Heater switch), so I'm not sure where the fuse would be. It could be that the in-line fuse you see if part of the circuit that goes to the gear shift that turns on the monitor when in reverse - maybe using the backup lights' power to fire a relay? Not sure if this helps you or not, but I'm pretty certain that my backup system runs on the same circuit as the Coach Heater, so I wouldn't think it would be only that in-line fuse.
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Jeff Warren
2002 Adventurer 35U
8.1 Workhorse Chassis
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