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2000 F250 7.3l. Last weeekend I intsalled a deck and speakers into my truck. After the install my cluster lights, and my a/c control lights faild to turn on. The problem still persits. I have checked every single fuse i can find on the truck, (since my manual noted no specific fuse for cluster illumintion). I was thinking it might be the dimmer swith next to the headlight switch. How can I test this switch to see if it still works.
In refering to my chilton books wiring diagram, it notes as there being a fuse number 65 that hooks to the accesory delay relay. I don't know where fuse 65 would be. My chilton manual, nor my owners manual, note to the location of a fuse # higher than 41.
Please help I am at the end of my rope, and about to start ripping wires out, just to teach her a lesson.
Pull out your headlamp switch and check the Light Blue with red striped wire for power at the dimmer module section. If there is no power coming out the fuse is blown or you blew out the electronic rheostat in the switch. The dimmer is fed power from pin 14, brown wire. Before you do anything I assume you have simply tried adjusting the dimmer and you have already checked to see if you snipped the wire in two during the radio installation.
Thanks for the reply homer. AS it turned out, My tail lights were also not working. I checked the fuses under the hood....of corse popped. So I replaced them, and as soosn as I turned on the lights...pop again. I then remember that during the install orf the deck, I had tied both the dimmer and illumintaion wire from the deck, to the illumination wire from the trucks harness. So I seperated them and have no more problem.
Thanks for the replies. It nice to find a place that is all about the blue oval, and its very few problems.
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