[Instrument lights VERY dim, rheostat issue?]

It does sound like the rheostat is either very dirty or just about had it.  You can remove the rheostat and just jumper the two wires together to test the circuit.

 

Hello Mr. ktm, would this scenario need dislocation of joints to get access to this trial? I've heard horror stories. 

[Instrument lights VERY dim, rheostat issue?]

Hi all,

 

I've been thinking about replacing the bulbs as the instrument lights are VERY dim. In the dead of the night I can barely make out the gauges. Then I read in the forum post that there is a rheostat! I assumed this to be the  fix to all my woes, but it's already at full power. Going back and forth, it does dim the light even further. They are all as dim btw. I was wondering, is it possible the rheostat is just a bit "tired" and is there a good way of going about in diagnosing the actual issue as I would rather avoid pulling the dash or dislocating members from multiple locations.