Question about 2001 Mitsubishi Diamante

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My horn sis not working. There was trouble with my car alarm months ago and the repairman removed the after market alarm. However, my car failed inspection today because the horn will click but does not beep. Can you tell me if I just need to plug something back in?

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Check relay or fuse to horn. if this is not it, check wire to horn to see if this is the problem. if power in horn wire, then horn is at fault. have a good day!!

Posted on Nov 06, 2010

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  • Mitsubishi Master
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Yes, if a car doesn't have a working horn, it would, in most if not all states fail a safety inspection.
If you hear a click, then it could be the relay clicking or the horn trying to operate. Likely, it's just a bad horn or a bad ground connection at the horn relay.

I would take the vehicle back to the repairman and ask about the horn and repairing it, or have the inspector who failed it repair it for you.

Horns go bad on cars due to corrosion or non use over time. I've had a few go bad on motorcycles which were even stored in a garage. Opened one up one time and found rust on the contacts that made it not work or oscillate to make a sound that is audible.

I think that you could locate the horn, and see if all of the wires are physically there, and try a test light to ground it out, as horns should always have power (as long as the battery is charged up) whether or not the ignition is on.

If you ground out one or the other terminals with a test light, at the horn, then it should beep.
If not, then the horn itself is bad.

Replace with new.
It is really that simple.

I have a 1997 Cadillac Deville that wasn't used for a while and the horn went bad on it and it was replaced as one of the items required for Pennsylvania State Inspection.

Posted on Nov 06, 2010

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