My Guages and radio buttons are all dark and wont light up at night like they are supposed to. I am assuming it is some type of light sensing sensor that went bad but I dont have a clue what its called or where it could be.
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There should be a button inside the door arch, on the hinged side, that activates the interior lights when the door is opened, this button also turns the light off when the door is closed.
Find this button and push / activate it manually with your hand.
If the light is not turning on and off, check that the switch on the interior dome light is in the "DOOR" position, not the OFF or ON position. this is usually the middle position.
Check all the Auto door light buttons on all doors, you may find one that is loose (not springing back into position) this will need replacing as it could be the cause of the interiour light on working automaticly.
I hope some of this helps
have you recently installed a new radio ? I have knowen people to install radiosincorectly the dim wire behind the radio shows as a earth. however when you turn headlights on this becomes a positive. if you have wired this wire to your sterio this is whyyour dash lights & internal cab light etc keep blowing.. if your wondering why sterio still works is because its earthed through the aerial or mounting bolts.
When say "dash light" I'm assuming you mean the nighttime illumination for instruments like the speedometer for example. If your truck has a stand-alone digital clock (not part of the radio) that has a feed wire from the instrument panel lights for it to dim at night, otherwise it'd be too bright. That could be a source of a short. The radio also makes use of the dash illumination as well, making the digital display darken at night and lighting the radio's controls and face plate at night, another source of a short in this circuit. Do not ever increase fuse ratings when replacing a fuse, that defeats the safety purpose of the proper fuse being able to blow, opening the circuit which prevents wires overheating and potentially catching fire. You don't want to go there. If you have recently installed another radio the wiring may be wrong. This happened a LOT on Pontiac Firebird's and TransAm's. People often wrongly assumed all black wires are ground and ended up grounding the dash illumination input. This blew the dash light fuse and made the retracting headlight doors stay up.