Forum Discussion
westend
May 21, 2013Explorer
So you have voltage at the truck's right signal harness pin but the bulb on the taillight will not power on, correct? The first place I would check is the trailer's corresponding harness pin. I would assume that you've checked the wire at the tail light for power when the signal is activated and found nothing. If so, and the harness check's out ok, you'll have to follow the trailer's wiring bundle from the harness to the fixture and find the break. You could also run a new signal wire.
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