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PostPosted: Tue Oct 09, 2018 2:08 pm 
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Joined: Mon Oct 08, 2018 6:44 pm
Posts: 5
Hey guys, new owner here.

I've checked out smwalker's post about reconnecting the horn and a few other posts about the horn. I can't seem to find anybody else with a similar issue.

When I reconnected the horn, it worked fine...for a bit. Now it only beeps 1-3 times before doing nothing. I'll leave the car, come back 20-30 minutes and same thing.

The horn is the only thing I failed on VA's Safety Inspection.

Any suggestions would be greatly appreciated, thank y'all so much.


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PostPosted: Tue Oct 09, 2018 10:07 pm 
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Joined: Mon Jul 29, 2013 6:44 am
Posts: 1363
Location: Azusa,CA
Easiest diagnosis would be to get down to the horn and probe into the positive wire. THen honk and read the voltage. Once the horn stops does the voltage drop as well? If no then the horn is the problem. If Yes then you got a wiring or even BCM issue.

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Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White


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PostPosted: Tue Oct 09, 2018 10:28 pm 
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Joined: Mon Oct 08, 2018 6:44 pm
Posts: 5
Yeah its reading 12V until you push the Horn and then it goes all over the place, even down to 700mV.

No good...


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PostPosted: Wed Oct 10, 2018 2:59 am 
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Joined: Tue Jun 13, 2017 4:35 am
Posts: 201
Location: Ottawa, ON Canada
What about the relay? Try swapping it with another one?

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2011 Caprice PPV, 1 of possibly 4 in Canada!
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PostPosted: Wed Oct 10, 2018 3:19 am 
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Joined: Mon Jul 29, 2013 6:44 am
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Location: Azusa,CA
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Steve Walker
Azusa, CA
'11 PPV 9C3 Huron White


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