SC430 - 2nd Gen (2001-2010)

Horn Relay??

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Old 10-16-18, 06:40 AM
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iolmaster
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Default Horn Relay??

I am having an intermittent problem with the horn. Sometimes it works, sometimes it doesn't. It is not dependent on the steering wheel position so I doubt it has anything to do with the spiral cable. (still possible) It is obviously not the fuse so my question is, do we have a horn relay and if so where is it? I have searched both on this form and the internet in general and can't find anything specific. Any help is always appreciated.
Old 10-16-18, 06:52 AM
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GmanSC
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Ít can only be one thìng: *the switch, IMO.
Old 10-16-18, 07:05 AM
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iolmaster
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Originally Posted by GmanSC
Ít can only be one thìng: *the switch, IMO.
I just did some additional checking.* It is wheel position dependent.* When the wheel is straight the horn will not work.* Turned to the left it works.* So, my guess is the relay is not the issue.* It appears it is in the steering column.
Old 10-16-18, 07:40 AM
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GmanSC
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Originally Posted by iolmaster
I just did some additional checking.* It is wheel position dependent.* When the wheel is straight the horn will not work.* Turned to the left it works.* So, my guess is the relay is not the issue.* It appears it is in the steering column.
In that case, it’s a spiral cable or it connection to the switch most likely the latter.

Last edited by GmanSC; 10-16-18 at 07:47 AM.
Old 10-16-18, 09:33 AM
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DshngDaryl
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Originally Posted by iolmaster
It is wheel position dependent.* When the wheel is straight the horn will not work.* Turned to the left it works.*
I think this is an indication of a Spiral Cable issue.

What year is your car? There are two (maybe even three) spiral cables for the SC, getting the right year is important. Believe it or not, a non oem clockspring cable for the latter years can be had for like $20

Last edited by DshngDaryl; 10-16-18 at 09:37 AM.
Old 10-16-18, 09:38 AM
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iolmaster
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Originally Posted by DshngDaryl
I think this is an indication of a Spiral Cable issue.

What year is your car? There are two spiral cables for the SC, getting the right year is important. Believe it or not, a non oem clockspring cable for the latter years can be had for like $20
Yeah, I think it is the spiral cable also. The mode buttons stop working at the same time the horn stops. so, I am 99% sure it is the cable. The volume up and down still work. I have a 2006 and the OEM number is
84306-51030. I can get one of those for about $180. I did see some on eBay for about $40. Wasn't sure how reliable they would be.
Old 10-16-18, 09:57 AM
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editordz
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I had the exact same problem. Had the spiral cable replaced last week, now I can let the world know of my disdain for other drivers again
Old 10-16-18, 01:15 PM
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DshngDaryl
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Originally Posted by iolmaster
I did see some on eBay for about $40. Wasn't sure how reliable they would be.
Yeah, I had that same quandary too. Didn't really want to pay $375 for one from the dealer, but I also didn't want the airbag (that would most likely save my life) to be dependent on a clockspring made in China.

I ended up with a used OEM one.



Old 10-19-18, 12:54 PM
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JohnnyCake
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Originally Posted by iolmaster
Yeah, I think it is the spiral cable also. The mode buttons stop working at the same time the horn stops. so, I am 99% sure it is the cable. The volume up and down still work. I have a 2006 and the OEM number is 84306-51030. I can get one of those for about $180. I did see some on eBay for about $40. Wasn't sure how reliable they would be.
I have had three spiral cables in 150,000 miles on my 2006.
Old 10-23-18, 11:03 AM
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GmanSC
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I've owned more than 10 automobiles so far, not single one has horn problem. I thought this problem never occurred.
Boy, I'm so wrong.
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