I have a 2010 f650 roll back wrecker the issue im having is when i turn the truck off the brake lights come on when i turn the key back on the lights go off and when you turn the truck off the day time running lights stay on until u pull the brake light relay in fuse location 207 under the hood and as of today the brake fluid level warning light came on and the master cylinder is full idk what to do or think at this point HELP

 

Posting just to keep this thread near the top, but one thought: A bad ground. But that means you have something else energizing the bad ground. Is any other equipment NOT working at all?

 

I'm not familiar with these trucks but thinking out loud.
Are the daytime running lights factory or were they installed aftermarket ? Have the brake lights stayed on when your driving.

 

no factory and no they dnt they work fine with the truck running wen u turn the truck off they come on turn the key back on the lights go off