# Where is the ground for the horn circuit on a 2000 Protege?

**URL:** <https://community.cartalk.com/t/where-is-the-ground-for-the-horn-circuit-on-a-2000-protege/141871>\
**Category:** Maintenance/Repairs\
**Created:** [June 8, 2019, 9:47pm UTC](https://community.cartalk.com/t/where-is-the-ground-for-the-horn-circuit-on-a-2000-protege/141871 "2019-06-08T21:47:32Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mazda\_protege](https://avatars.discourse-cdn.com/v4/letter/m/dc4da7/32.png) [@mazda\_protege](https://community.cartalk.com/u/mazda_protege)\
**Post date:** [June 8, 2019, 9:47pm UTC](https://community.cartalk.com/t/where-is-the-ground-for-the-horn-circuit-on-a-2000-protege/141871/1 "2019-06-08T21:47:32Z")

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Hi there,

The horn on my protege isn’t working, when I hit it I just hear the relay clicking. The relay from my old protege I put in and all I hear is clicking.

Its a “new” protege.

I put 12V on the physical horn, and it beeps.

I am suspecting bad ground.

The shop manual I have doesn’t show the ground locations 😐

Does anyone know where the wiring loom, near the radiator goes to? Straight to the relay?

If someone could post a nice diagram that would be great.

Thanks,

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**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\
**Post date:** [June 8, 2019, 10:01pm UTC](https://community.cartalk.com/t/where-is-the-ground-for-the-horn-circuit-on-a-2000-protege/141871/2 "2019-06-08T22:01:33Z")

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Have you checked the 15 amp fuse in #13 under the hood?

 ![Capture](https://global.discourse-cdn.com/cartalk/original/3X/f/6/f6ce73962c4b156a799d1cbdb5c0e27b33107aa8.jpeg)

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [June 8, 2019, 11:13pm UTC](https://community.cartalk.com/t/where-is-the-ground-for-the-horn-circuit-on-a-2000-protege/141871/3 "2019-06-08T23:13:07Z")

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The wiring diagram only shows one wire to the horn, the power wire. The horn is grounded by the mounting bolt.

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**Author:** ![mazda\_protege](https://avatars.discourse-cdn.com/v4/letter/m/dc4da7/32.png) [@mazda\_protege](https://community.cartalk.com/u/mazda_protege)\
**Post date:** [June 9, 2019, 6:18am UTC](https://community.cartalk.com/t/where-is-the-ground-for-the-horn-circuit-on-a-2000-protege/141871/4 "2019-06-09T06:18:39Z")

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I managed to fix the horn, it was the connector to the horn that was damaged ( God knows how it gets damaged)

I cut off old connector, and crimped on a female connector ( not OEM standard ), but it works now.

Thanks and have a great day,  
Ryan