Good video here:
https://youtu.be/FboDyLjn5sg
Many more also on youtube.
BTW, an inexpensive digital voltmeter (or multimeter) is a basic tool for any electrical system testing or diagnosis.
Quote:
Originally Posted by neal
I thought that at least a light would work with truck running. My 2003 dodge has a 12 hot wire in the main plug for aux. batt. on a trailer. Does that wire go directly to the camper batt. ?
Is there a wiring diagram available for the crusader 270RET?
thanks.
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Follow the wiring from the truck. Test the truck battery voltage with the engine running. As you follow the wiring, you should be within a few tenths of a volt that is showing at the truck battery. If you find a sudden drop at some point, you have found the problem area.