Dash light Fuse blowing
Hey! Looking forward to some help with this one, kinda stuck. My turn signal, ebrake, temp, gen, dome, headlight, tailight, reverse light and lights work perfectly.
My cluster speedo/fuel lights do not work. I have a 4A fuse installed in the "inst" slot and as soon as I pull the headlight knob out, the fuse blows.
To troubleshoot, I confirmed all the bulbs work and replaced the light switch but no difference.
If I disconnect the instrument cluster completely, the fuse still blows when I pull the light switch.
However, if I disconnect the cluster, and turn the light switch all the way down (completely dimmed) the fuse will NOT blow right away, but will once I turn the dimmer to about 2/3 power. If I do this with the cluster connected, it does the same thing but I still never see the lights.
I've also tried a 10A and 20A fuse but the result is the same. I blew about 7 fuses today trying to fix this.
I'm getting just over 12.5v at the inst. fuse.
My next thought is the fuse box connector for the "inst." fuse is probably rusted out but I didn't want to start monkeying around with it if it wasn't a likely fix. Bad fuse connector or faulty replacement light switch maybe?
p.s. I have a multimeter and I'm not affraid to use it but I don't know what/where to test.