Question about 2002 Toyota 4Runner

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Horn relay help please!!

I cant figure out the exact location of the horn relay. no manual tells and nothing labeled under the hood. please help

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  • jayblue23 Feb 17, 2009

    my friend drove it drunk and hit a speed bump to fast.the horn went off and wouldn't stop. he shut the truck off and said that it wouldn't stop so instead of pulling the fuse out he ripped the wire for the horn out from under the hood. i hooked it back up and the fuse blew. i replaced that and it worked twice and then stopped. the fuse is fine so i figured the relay was bad.

  • jayblue23 Feb 19, 2009

    Ok i pulled off the trim and i have no 4 wire connector by the steering wheel. i do have a 3 wire connector with green w/red tracer, green wire and a brown wire. is that the connector you are talkin about. also if i pull that out is it going to cause the airbag to go off? do i need to disconnect the battery? thank you!

  • jayblue23 Feb 19, 2009

    okay when i tested the connector the horn blew so that means that the clock spring is bad right?

  • Toyota Ed May 11, 2010

    Clockspring Toyota part number: 84306-30120



    Expect to pay about $225.00 for it.

  • Toyota Ed May 11, 2010

    Yes, indeed. The clockspring is bad. To replace it, you need to pull the steering wheel off.

  • Toyota Ed May 11, 2010

    Yes; The green with the red trace goes to the body computer. If you apply a ground to that wire, the horn should blow. If not, you would need to test the horn for operation by itself. It he horn works disconnected from the vehicle, and does not work by grounding the Green with a red tracer, you may need a body computer. Expensive part. Do not disconnect the battery, the horn will not blow if you do, when you test it. Just AVOID any YELLOW wires when grounding the Green with the red trace wire. Let me know how the horn tests out.

  • Toyota Ed May 11, 2010

    There is no horn relay on your vehicle. The horn is controlled via the body Electronic Control Unit (commonly called the "body computer)...



    The green with a red tracer applies a ground from the horn pad assembly on the steering column, under the horn pad.



    What I would do is pull off the lower steering colums trim, and locate the green with a red tracer in a 4 wire connector close to the steering wheel. Unplug the connector. Apply a wire to the green with red tracer; see if the horn blows. If it does, my esteemed collegue Emissionwiz's diagnosis is very correct, you have a bad air bag spiral cable "clockspring".



    Try that and let us know.

  • yadayada
    yadayada May 11, 2010

    WELL THEN I DON'T THINK I WILL HELP.

  • yadayada
    yadayada May 11, 2010

    CHANCES ARE THE RELAY IS UNDER THE DASH NOT UNDER THE HOOD, WHAT IS THE PROBLEM, THE HORN RELAY IS SELDOM THE PROBLEM, THE AIRBAG CLOCK-SPRING CONTACT UNDER THE STEERING WHEEL IS THE USUAL CAUSE.

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