It's quite hard to check the brake line,since it runs sorta hidden by the gas tank. But, replacing the sensor on the the rear, or at least cleaning the electric plug that goes to it,is a good start.

 

well i replaced the sensor today and still the lights are on....now its time to check for a leak i guess any special way of doing this or just check the lines?

*UPDATE*

I looked for leaks couldn't find a damn thing then i saw a hose that connected the the T fitting for the brake lines on the rear axle it looked like a vent hose that went up by the spare tire. that the factory clamp had fallen off so i put a new on and its works like a dream and my cruise works again....... Thanks for all the help!