oldtrojan66ExplorerSep 29, 2013How to tellWhere do I test to see if truck is charging the fifth wheel batteries? Can I tell at the battery connections? I know I have a controller, but not sure how that is wired in the system. While driving a ...Show More
TucsonJimExplorer IISep 29, 2013You can also check at the plug itself if to make sure you're getting voltage to the back of the truck. Pin 1 = Ground, Pin 4 = 12V.
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