Hello Fellow F-150 Owners I was just looking for some help as to why my F-150 is ticking on the #6 Relay. The marker lamps of the truck just flicker nonstop i.e. I had to disconnect the battery in order to make it stop. not quite sure what to add here if you need any more info let me know I'm more than happy to provide.

 

According to the 2013 owner's manual relay # 6 is trailer tow park lamp relay. So... What, if any, changes have you recently made?

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Fix the flickering marker lamps and you'll fix the BJB R06 relay clicking. It's energized by the running/park/marker lamp circuit.

Do you have a corresponding clicking from the under dash fusebox (BCM)?