Electrical problem

ok i think i got an electricall problem. some time when i start my car and rev my motor i get a buzzing sound and my ebarke light come when i rev it. but at idel there is no buzzing sound and the E brake light is off. any ideas what it could be TIA

bump come on guy help me out

Check your Brake fluid level, I was coming down a steep hill the other day and my "Brake Light" came on and stayed on. I looked in the civic manual and it said it could be do to low fluid levels. There is a sensor in the master cylinder brake fluid container. When you rev it up it may be moving the sensor just enough to come on. Don't know about the buzzing though. May be a audio sensor or somthing.

see the problem is that the brake light is on and off only when the buzzing is there

Looking at the Haynes repair manual the circuit runs off the same circuit as the horn. Check to make sure that the horn isn't shorting out the brake light switch some how. Check all the wiring on the horn and on the brake light switch to make sure everything is intact. Could that buzzing be coming from the horn or is it coming from the brake light switch. The brake light switch is located on the top of the brake pedal.