I have 92 Accord LX and the Dash light does not work. All other warning lights work but does not illuminate any of the needles. Also, the gear indicator turns off when I turn my light on. The light for the ash tray and the clock work and they dim when the lights are turned on. My tail lights work too.

I checked all fuses and they are good. Only thing I didn't check or changed is the dimmer relay. Could this causing my problem? I'm really confused.

Thanks

 

check the light bulb

 

the dimmer relay will cause the problem. if the climate control lighting and stuff doesnt turn on either that's most likely your problem. also when you turn the lights on the gear indicator uses different lighting controlled by the dimmer relay, which is why it would turn off when you switch the headlights on.

check the wiring and replace it and you should be ok.

 

I think you're right, because i get the same result without this relay plugged in. I'll try to replace it. Seems like no one has one on stock though.
Thank you for your help. I'll post the result.