Horn not working

1,890,910 MILES • 2.0L • 4 CYL • 2WD
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GREGHOOVER
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  • 3 POSTS
The horn stopped working replaced the haz-horn fuse under the hood but still does not work. Jumped the horn to battery works fine but no power to the connection in the wheel. What could it be.
Dec 19, 2017 at 6:35 AM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,413 POSTS
Go to the horn relay. Remove it, then in the socket, check first for twelve volts. There should be four terminals and two should have twelve volts all the time. Of the other two, read their resistance to ground. One should have real low resistance. That one is going to the horns. The last one should have close to 0 ohms only when the horn switch is pressed.

If all of those appear to be okay, suspect the relay. Be aware the switch circuit can measure okay if only a single strand of a frayed wire is still intact, but that will not allow enough current through to run the relay's coil.

Also, observe if the relay clicks when you press the switch. If it does, you have just eliminated half the circuit as a suspect.
Dec 19, 2017 at 7:21 AM
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GREGHOOVER
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  • 3 POSTS
Where is the horn relay located at?
Dec 19, 2017 at 7:48 AM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,413 POSTS
It is listed as "behind the right kick panel".
Dec 19, 2017 at 8:36 AM
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GREGHOOVER
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  • 3 POSTS
Okay, thanks a lot.
Dec 19, 2017 at 8:38 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,649 POSTS
Hello, '

Here is a guide to help you test the relay and a diagram of the horn relay location (below).

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below)

Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
Dec 20, 2017 at 10:30 AM
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