Hello,
An inoperative horn can be due to a bad relay, wiring or a bad horn itself. It can also be due to a bad switch for the horn.
First check the relay. The horn relay is located under the left-hand side instrument panel (see diagram).
Check for any corrosion or burn pins.
This relay can also be tested:
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
If the relay is good check to see if you are getting power to the horn harness. Check for power at the connector that attached to the horn.
If there is no power at the connector then there is a short in the horn harness. This will require you to trace the wires to find the short. I have attached the wiring schematic below.
https://www.2carpros.com/articles/how-to-check-wiring
If there is power at the connector then the horn is defective and need to be replaced.
Please let me know of any questions.
Thank you.
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Friday, October 22nd, 2021 AT 8:47 PM