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Question posted by akessler79 on November 5th, 2011

Heater/defrost/ac Does Not Activate Or Run.

Checked fuses which appear to be fine, but when I turn the switch to low/med/hi nothing happens. Need to repair but can't identify what the issue really is?

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Answer #1: Posted by stunna505 on November 28th, 2012 8:28 AM

stunna505

Member since:
November 27th, 2012

Points: 110

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Very common problem with theses trucks. You will need to replace ac/heater control switch. very easy do it yourself. 1.turn ignition switch to on do not start only forward enough to place shifter as far from park as possible(be sure to be on a level surface and emergency brake is engaged and functioning) Put steering wheel in the lowest position closest to legs. 2.gently begin to pry apart bezel that houses radio and instrument cluster pull towards you. 3.yo will have to disengage electrical connections for headlights, 4by4, and depending which rear door option you have disconnect latch switch. It will be helpful in removing bezel to engage tilt and hold steering wheel down in order to remove. 4.once bezel is off heater control switch is simply held in place by prongs on either side which when depressed in gently one at a time will release th swtches. 5.disconnect wiring harness to switch and replace with new one. 6. reverse order of removal and done.

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