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Old 05-22-2022, 02:37 PM   #3
bigdog
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Circling back with some testing I've done...
I tried testing the trailer connection on the truck with a volt tester, but couldn't get 'any' from any of the four connection connection leads. I would think I would be able to get 12v by connecting my voltmeter lead to any one of those harness pins and voltmeter ground lead to ground, but I got no reading ?
Thoughts?

Next steps is to check fuses in truck pertaining to trailer, there are three.
25 Amp trailer tow park lights
20 Amp trailer tow stop-turn-relay fuse
25 Amp trailer tow lamps module

Not sure one can actually test for a bad fuse ? Continuity check ?

Your feedback would be greatly appreciated !
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