just bought a 94 civic lx and the gauge cluster wont light up, checked the fuses and they are all good, everything else around the cluster lights up, but the tach and fuel and all that wont, im thinking its the actual adjuster that is bad.....
what do you think it could be?

 

could just be cluster. try swapping it

 

that happened to my little brother and it was the cluster. try that bud.

 

Had this problem too, If I remember right, it was the dimmer switch as you were thinking.

 

well here is the deal, the seat belt light, e-brake light...all that work and even the dome light works...but the cig lighter doesnt work..... and i know in 9 outta 10 cars the cig lighter and the dome are on the same fuse..... so i think some one burnt out the cig lighter and it it doesnt work...and neither does the horn work.....found that out cause i was curious....fuse for that is good too.....