Well about a week ago, my highbeams in my 89 CRX stopped working. When I turn them on, the light on the dash comes on, but no light response. I've heard that it could either be the signal/light switch or my bro says it could just be the bulbs?

If you have any ideas of what it could be, I would appreciate it.

Also, if it is the light switch arm, are civic switch arms interchangeable?

Thanks.