my high beem instrument light never worked, untill a buddy of mine slammed the passenger side door shut. It works now. Have you replaced the fuse? does your heater lights work? Have you cleaned the fuse prongs?

 

yeah been through it all.. fuses are good, heater lights work.. the high beam (blue light) works.. but when you turn high beams on the acctual light on the speedo gauge comes on along with the little blue one..

but on low beams the only lights that work are the heater lights..

 

check for a short in the dimmer switch too. You never know. If you have an extra switch or one from a wrecking yard, it would be an easy try. Easier than pulling the dash/cosole