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post #1 of 18 (permalink) Old Jun 23rd, 19, 08:14 AM Thread Starter
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Horn relay

My horn relay no long sounds when my car door open.
How can I restore the relay. It is original so I don't want to replace it. Can they be rebuilt.

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post #2 of 18 (permalink) Old Jun 23rd, 19, 08:23 AM
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Re: Horn relay

Why do you think it's the relay and not the key buzzer in the column?
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post #3 of 18 (permalink) Old Jun 23rd, 19, 12:07 PM
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Re: Horn relay

Ages ago my fatherís car stopped doing the warning buzzer thing, turned out the key had worn down just enough that it no longer triggered it. Different key worked fine...

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post #4 of 18 (permalink) Old Jun 23rd, 19, 01:22 PM
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Exclamation Re: Horn relay

If you are getting signal on the key minder wire at the relay but no buzz, gently tap the unit with a rubber mallet. It just may be gunked up. Other wise you have to take the top off and rebuilt it, may need some adjustment to buzz. Does the horn still sound?


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Last edited by 69-Pace; Jun 24th, 19 at 02:18 PM. Reason: typo
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post #5 of 18 (permalink) Old Jun 23rd, 19, 02:08 PM
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Re: Horn relay

Easy enough to check. Just probe the pink/black wire at the horn relay. With key in door closed it should be 12V with door open it should go to ground.
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post #6 of 18 (permalink) Old Jun 24th, 19, 01:47 PM Thread Starter
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Re: Horn relay

Quote:
Originally Posted by Vega$69 View Post
Why do you think it's the relay and not the key buzzer in the column?
Did not think of that

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post #7 of 18 (permalink) Old Jun 24th, 19, 01:48 PM Thread Starter
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Re: Horn relay

Quote:
Originally Posted by 69-Pace View Post
If you are getting signal on the key minder wire at the relay nut no buzz, gently tap the unit with a rubber mallet. It just may be gunked up. Other wise you have to take the top off and rebuilt it, may need some adjustment to buzz. Does the horn still sound?
Yes the horns work

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post #8 of 18 (permalink) Old Jun 24th, 19, 02:19 PM
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Re: Horn relay

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Originally Posted by R/T View Post
Yes the horns work
Yeah, then its more than likely the key minder switch as others have stated. Once you test the lead you will know where the issue is.


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post #9 of 18 (permalink) Old Jun 29th, 19, 06:05 AM Thread Starter
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Re: Horn relay

Quote:
Originally Posted by 69-Pace View Post
Yeah, then its more than likely the key minder switch as others have stated. Once you test the lead you will know where the issue is.
Where is the key minder switch ??

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post #10 of 18 (permalink) Old Jun 29th, 19, 09:10 AM
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Re: Horn relay

It's in the steering column, refer to this thread.


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post #11 of 18 (permalink) Old Jul 11th, 19, 05:27 PM Thread Starter
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Re: Horn relay

I tested the horn replay buzzer by touching the two contact pads on the back of the turn signal switch. The buzzer worked. I pulled out the key buzzer switch to test it. It was fine. I reinstall the buzzer switch. Put the key and get nothing(ohm test). Any help on what to check next...

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post #12 of 18 (permalink) Old Jul 11th, 19, 07:50 PM
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Re: Horn relay

Quote:
Originally Posted by R/T View Post
I tested the horn replay buzzer by touching the two contact pads on the back of the turn signal switch. The buzzer worked. I pulled out the key buzzer switch to test it. It was fine. I reinstall the buzzer switch. Put the key and get nothing(ohm test). Any help on what to check next...

How worn out is the key? The keys on my car were pretty worn, and my Z had the same issue when I first bought it. I had all my locks rebuilt with new keys and didn't do anything else, and all was working. I'm not so sure here, but I'm guessing the front tip gets shaved smooth after going thru the in and out motions (LOL) all these years, and just doesn't PUSH the buzzer switch contacts together.


Hey, did that sound a little suggestive and dirty? I'm still chuckling after rereading that. LOL


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post #13 of 18 (permalink) Old Jul 12th, 19, 04:14 PM
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Re: Horn relay

Pull the lock cylinder out of the column. reassemble the ts switch to the column and use a small pick or srewdriver push up on the Key minder switch thru the opening where the lock used to be. If it buzzes look at the cylinder with key in and out to be sure the button is working to press the switch. IF it doesn't buzz the problem is the key switch contacts are not hitting the back of the T/S switch
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post #14 of 18 (permalink) Old Jul 12th, 19, 06:58 PM Thread Starter
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Re: Horn relay

[quote=69Z28;1783151027]How worn out is the key? The keys on my car were pretty worn, and my Z had the same issue when I first bought it. I had all my locks rebuilt with new keys and didn't do anything else, and all was working. I'm not so sure here, but I'm guessing the front tip gets shaved smooth after going thru the in and out motions (LOL) all these years, and just doesn't PUSH the buzzer switch contacts together.

Hey, did that sound a little suggestive and dirty? I'm still chuckling after rereading that. LOL



I tried a new set of keys. No change

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post #15 of 18 (permalink) Old Jul 12th, 19, 07:00 PM Thread Starter
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Re: Horn relay

Quote:
Originally Posted by yellow69RS View Post
Pull the lock cylinder out of the column. reassemble the ts switch to the column and use a small pick or srewdriver push up on the Key minder switch thru the opening where the lock used to be. If it buzzes look at the cylinder with key in and out to be sure the button is working to press the switch. IF it doesn't buzz the problem is the key switch contacts are not hitting the back of the T/S switch
I'll try this tomorrow
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