So i have been having issues with my Fog light dash light coming on and off during driving with my headlights on. The dash light will come on for 30 seconds to two minutes and it will shut off. It dosent seem to be triggered by bumps. when this fog light comes on i am unable to activate my brights.On my twenty min commute to work it prob comes on three to for times during commute. I pulled into my driveway and it came on, I hopped out and looked and front and back of the truck and none of the lights are affected? any suggestions im stumped...