Question about 2000 Toyota Sienna

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Changing Sienna 2000 battery

Car wouldn't start after a winter if sitting in the driveway.  My son bought and try to replace the battery.  He can't seem to connect the last terminal (negative) without the horn blaring continuously. Any suggestions on how to finish installing the new battery.  Thanks.

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  • consueloo Mar 07, 2009

    Thank you.  I will try and let you know what happens.

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The horn relay is stuck. The fuse box is right by the battery, remove the horn relay (it pulls straight out) and replace. The guide is in the lid. Removing the relay (or the 10A fuse, tool is also in the box) will stop the horn, but the relay's contacts are probably locked.

Sometimes just a little shock will dislodge the contacts that are locked together, but it's probably worth replacing with new.

Posted on Mar 04, 2009

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