Air was working and so was my Heater, all of a sudden , air stopped working, heater, reverse lights and power locks(power locks are to engage when I put the truck in gear)anyway I've checked the fuses, #1,4,and 5 and then I checked all the others just in case but all are good. All my ground cables are well grounded. All my relays have been tested. Air comp works fine when tested and has freon. Is there anyone out there that can shed a little light and get my truck back to factory condition.
Many items are usually routed together and controlled through a computer. There are usually multiple computers that control everything from the wipers to blower motor to the horn. With that many things going out at once, I would suspect one of those.
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