2002 Yukon horn does not work, where do i find the fuse, I know n

If possible, pull the horn relay, use jumper wire on switch side of relay, right side in diagram. If the horn sounds, it's not the fuse. Sometimes these diagrams don't post, for some reason? good luck

Before replacing anything you people need to go to school and learn how to test . starts up but dies out . Is security light lit on the instrument cluster ? anti-theft system . will disable injectors if there is a problem .

short to ground or bad horn

it could be that one of the horns isnt working. they are grounded thrue the bolt that holds them to the vehicle so a bad ground could be also. if you can get to them loosen and retighten the bolt.also the single power wire connected to it could be corroded.pull and push them on and off a few times.

Sounds like the horn itself is shorted out. You didn't mention if the blown fuses were a result of using the horn. A horn in construction is an electromagnet acting on a diaphram; if the electromagnet develops a short, it causes an overcurrent condition and will blow the fuse.

CHECK HORN FUSE AND HORN RELAY.IF BOTH FUSE AND RELAY CHECK OUT OKAY.YOU WILL TO REPLACE STEERING WHEEL AIRBAG BECAUSE STEERING WHEEL AIRBAG HORN BUTTONS BUILT IN THE AIRBAG.YOU HAVE TO BUY THE WHOLE UNIT.NOT A CHEAP FIX.

well polly you know where the fuse panel is so go there put the horn fuse back in and pull out the horn relay. get another relay and put it in, if the horn is better you fixed it. if the horn is not better you need a new horn switch. GM horn switches tend to fail like this, yes yours is a GM. In the olden days you replaced the horn switch yourself by snapping out the center of the steering wheel or backing out a few screws on the back of it. however these days there is an airbag in the center and you take your life in your hands in any attempt to work on it. so i would do a search on youtube and see if there is a video of someone doing this, if you think you can take it on go ahead, otherwise a visit to a dealer is in order.

Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Silverado instrument cluster repair
Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Yukon instrument cluster repair

The rt horn is up behind the fog lamp on the radiator core support . The left horn is wedged between the left head lamp and the washer jug the washer jug needs ot be removed to replce the left horn. Remove the battey the battery tray then the upper bolt on the washer jug then disconnect the washer hoses along the fender by the under hood fuse box. loosen the front of the wheel well splash shield and remove the bottom bolt on the washer jug and disconnect the washer pumps and fluid level sensor connector remove washer jug to gain access to horn

hi from the uk first thing to check is fuse? in fuse/relays box if you check handbook it will identify location and amp of fuse? if fuse ok? then find horn and check wire connection is clean/secure then have someone hold horn button on whilst you tap the actual horn body? if horn works momentarily then ? the horn is faulty you can obtain horn from motor stores not dealers if you want to ? and diy the job no problem if horn is not readily visible ? check under front wheel arches? and in font of radiator below front cross member brace above rad n/s or o/s? hope one of these suggestions help you and inspires to diy best wishes from uk