Trailer running lights
7 Answers
No power to the four way connector at the truck.
11 people found this helpful.
Check fuses and the wiring to the connector. Check the actual connections for corrosion and dirt.
3 people found this helpful.
Fuses seem all good. Wires and connections are in great shape.
7 people found this helpful.
I will have to take a closer look at the fuses maybe.
3 people found this helpful.
Parking light fuse is what will cause no trailer running lights. It is fuse 99 for the 2017 F-250
32 people found this helpful.
You have to turn on light, take out of day time running lights on mine to get trailer running lights
8 people found this helpful.
I ran into this issue, replaced fuse 99 30amp, and turned automatic lights off. Trailer lights work fine now.
6 people found this helpful.