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2005 F350 Lariat 6.0 Running Lamps Issue 245k

389 views 0 replies 1 participant last post by  BolI2415  
#1 ·
Hello Everyone,

Recently had an issue pop up on my f350 that cannot be explain. All of my exterior lights are working but not correctly. My Tail lamps are super dim when turned on. Blinkers in rear only are super dim and both sides blink at the same time even when one is selected. The 3 running lamps under the tail gate also blink. The bed marker lamps (Its a dually) only come on when the hazards are turned on and they flash only. The blinker in the cab blinks very fast unless I hold down the brake and the blinking indicator returns to normal speed.

I have gone thru all the fuses, checked and tested. In my power distribution box I do not have the DRL relay or the DRL 15 amp fuse. Those areas are left blank in my box with no connectors. I have checked the grounds and the rear trailer harness with no change in performance.

Things to note: I discovered the rear driver back up lamp is out. Going to replace that.


This all started happening around the time I was cleaning around my battery and accidentally arced the system. There is a fuse that blew but I do not remember which one but I did replace it and days later noticed I was having running light issues and then that my brake lights werent working (Insanely dim). In conclusion, no fuses are blown or not working, and I can get every running light to turn on in some form or fashion. Any help would be greatly appreciated.