I've got a K10042 instrument cluster, and I'm having some weird issues, that some other posts suggest might point to the thermal compensator board, but I'm not so sure. There's a lot more going on here than just the temperature gauge going haywire.
Here are the symptoms: When I turn my headlights on, the turn signal indicator lights and the high beam indicator light all start to glow, which was intermittent at first but it's pretty much all the time now. Simultaneously, the dash illuminator lights go off so I can't see the speedo, clock, or temperature/guel gauges. And in addition to those other symptoms, the temperature indicator shoots way up, faster than the engine could possibly ever heat up (the engine and coolant are fine so I know it's not a temperature issue). When I turn the rheostat all the way down to the off position, the temperature reading usually goes back to normal, and the glowing indicator lights usually (but not always) stop glowing. So the rheostat is somehow at play with this whole thing. I changed the rheostat and that didn't seem to help. Can a bad thermal compensator board cause all of the other funkiness in the turn signal and highbeam indicators, and be effected by the rheostat? Or is there more to this story?
If it is a bad thermal compensator, what's a good source for a cheap new one?
I'm trying to fix it without having to replace the whole cluster. I'm on a tight budget here. Thanks so much for your thoughts.
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