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· Registered
321 Posts
Discussion Starter · #1 ·
1. I hate trailer lights
2. they never work
3. why does every trailer running lights not work
4. how do I diagnose this problem
5. how do I fix this stupid thing???!!!!!

I know it is my truck because other trucks have running lights. I have turn signals, and brake lights. Is there a fuse to just that or a bad wire or connector? It does it with the 4 pin and the 6 pin.

· Admin/Mod
10,720 Posts
#5 Use Google/YouTube and learn about wiring diagnostics, get a Multimeter/circuit tester and fix it.
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