Dashboard lights not working?

My truck does have fog lights but no DRLs. The green light is actually an LED attached to the switch assembly itself. It is used to light up little symbols on the instrument panel that indicate wether I have no lights parking lights or my headlights on.

Only when the key is on.

I'm uploading a pic of my light switch you can see the switch and the dimmer on the right. I've also noticed that if turn the dimmer switch all the way down so that the instrument panel is completly dark the fog lights magically come on I know that is not supposed to happen

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Okay I'll test those wires and I forgot to mention that I noticed that if my truck is off and I turn the lights on then adjust the dimmer switch the switch makes a humming noise. It only does this when the truck is off.

Hello I am having having basically this same issue. 2001 Ford Ranger Edge V6 3.0L. Several months ago the instrument cluster lights were functioning and then would turn off. They would turn back on if you would give the dash a nice slap. Now nothing. I have replaced all 194 bulbs in cluster (which the old ones still looked like the filaments were good). Still nothing. The lights on the ac/heater also do not work as well as the lights on steering wheel for the cruise control. (Cruise control buttons are beat up but the cruise control still functions). I have checked the ground underneath drivers seat and is in good contact. Just checked the voltage from from fuse 11. Fuse is good. Voltage reading when head light switch was turned on was roughly 11.43. Just trying to figure out what should be my next step before throwing parts at it. Any comments are welcomed! Thanks in advance! -Marcos

Hey Ken- I finally had a chance to tear into my dash again. I tested everything you were asking the original poster to check. I looked into your diagrams that you sent me refarding the instrument cluster as well. I am by no means anywhere near an expert into electrical systems. I did end up testing with my voltmeter all the wires on my dimmer switch. Everything seemed to work except for the light blue/red going to the dimmer. Can you give me your opinion of what this indicates besides it not working? I see the light blue/red in the wiring diagrams is where it's related to my issue. Can you please tell me where I should go from here? Thanks so much! Marcos

Yes I actually changed out all 6 194 bulbs in the instrument cluster during the first go round assuming that was the original issue. The orange/blue on the dimmer switch did give me voltage when headlights were turned on on this most previous test. I have been searching for all grounds and so far they have all checked out. Struggling to figure this one out

Will give it a go tonite and let you know how it goes.

No such luck on that test. I did however test with my voltmeter the wires on my dimmer switch and did not get any voltage on the light blue/red wire.

Have 2001 ranger checked all things that is talked about the problem now is I only have 6.3 volts on the blue/red wire I am thinking that should have 12 volts on it as I only have some of the dash lights on. Is my dimmer switch bad?