Trailer lights not working but blinkers/brakes do.
11-10-2018, 06:50 PM
#1
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Join Date: Nov 2011
Location: Seacoast NH
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Trailer lights not working but blinkers/brakes do.
I bought a trailer early in the summer. A few weeks ago, I noticed the running lights don't come on, but the blinkers and brake lights do. It's not the trailer, I checked with a set of towed vehicle lights we use when towing our car behind our motorhome and they do the same thing. I haven't checked fuses yet, are these on their own circuit? I know it's computer controlled because the lights would come on as soon as I plugged in the trailer lights when it worked so I'm assuming it could sense the load added.
2010 F150 XLT SCAB
2010 F150 XLT SCAB
11-12-2018, 02:23 PM
#4
Senior Member
I had a similar problem with the 4 prong flat connector but when I use the 7 to 4 plug lights work correctly. $7 part from Walmart and never even use the 4 prong plug in.