Just recently, my Brake light started coming on, on my dashboard for several seconds or more then going back out. I checked the fluid and it was fine. The next time the brake light came on, I noticed that the needles for Both my Speedometer and RPM gages dropped to zero for as long as the Brake light was inlluminated. Once the brake light went off, the needles once again showed my speed and RPM (were functional). This occurs while I'm simply driving down the road. What could be wrong and how do I fix it? Thanks.