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orggardn's avatar
orggardn
Explorer
May 16, 2016

Running lights not working - how to troubleshoot?

I had an odd problem when I connected the 7 pin connector to my F150. Usually, I turn my headlights in full "on" mode, so when I'm behind the truck and the connector seats - I see the running lights c...
RoyB's avatar
RoyB
Explorer II
May 16, 2016
I got one of these 7-way testers from AMAZON... You plug this in place of the trailer plug and if all of the lights work good here then the problem is on the trailer side...


I also squirt wd40 into the connector at times and wiggle the 7-way plug around some to clear away some of the debris...

Roy Ken

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