Dash & A/C lights not working!! HELP PLEASE

[oneradride]

damnit... my advice worked for you and now my freaking dash lights are not working....

 

[launch6250]

Did anyone ever figure this out? My cluster, a/c panel, and rear a/c are out. I was thinking maybe a bad dimmer switch? Any help would be great. Thanks,

 

[oneradride]

I figured mine out.... I took the switch out and apart. On the internal circuit board was a burnt trace (a break in the circuitry that is imprinted in the board) I found it after taking a meter and toning each trace from where the power was supplied to the module, tracings each line until the tone failed. Turns out it was the heavy trace at the top that supplies the littler traces that work with the dimmer. One dot of solder in the visually open trace break and all is working well again. 10 minute fix if you know what you are looking for. Good luck - Darren

 

[mikehea28]

I had the same problem with my 01 yukon and it was the light switch and the 4x4 push button they both went bad . the 4x4 switch shorted out the light switch and that is why i had no power to the illum fuse