Question about 1998 Toyota Sienna

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Horn button on 98 Sienna

The horn button requires a strong push, if it works at all. Is there something I need to do with the contacts to solve this. I tried cleaning them once, but this only helped for a short time. The problem is in the button not downstream.

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  • barayetest Feb 07, 2009

    I also have a Toyota Sienna 1998.The horn on the steering wheel does work when pushed down, but the horn is O.K., how can I fix it? If press hard on the steering wheel horn pad every now and then it works.

    Thanks

    Mahmood


  • Toyota Ed May 11, 2010

    The contacts close when the horn button is "pushed"; creating a grounded circuit that applies the horn relay. What I would do would be grounding the horn pad wire with the wire disconnected from the horn pad. If the horn blows good each time you ground the wire itself, I would look to see as to why the contacts are not making a good ground. Please feel free to respond back if you have any questions.

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I just took a look into my steering wheel horn set up.
It is defective design. Only one of the two contact plates are connected. The ground from the spiral cable is not used for the horn. I can fix the first part, but the latter part will need a consult with Toyota service dept or HQ. If you have the same problem, let Toyota and nhtsa.dot.gov know about the problem. I've read a lot of fixes that didn't work. The normal suspects on the horn are: relay, horn (use the alarm to check or by pass the relay), spiral cable, contact plate, but my new one is that one of the contact plate is not connected and ground from spiral cable is not used for the horn. Just indirect contact from the steering shaft. You need to know haw to remove the air bag to look at that area.

Posted on May 26, 2009

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