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hello and thank you for allowing me to help you. does the A/C ork if you activate the S/W if it does then it's just the illumination bulb inside the switch itself. If the A/C does not work when activating the S/W then I would say your on the money and is a 10 or 15 amp fuse if you have the owners Manuel it will show it's location. I believe it's behind the passenger kick panel under the dash area. have to pull up the door bottom scuff plate then remove the little kick panel and you should see it there.