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H3 Horn Chirp at lock not working

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Old Apr 3, 2021 | 05:14 PM
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Originally Posted by Nonibot
LMAO yeah, the black wire is still attached to the OE harness and the green wire is out and rewired and runs to both horns. There is some taping on the black one too, not sure what's really happening there.
I'm not electrically inclined. AT ALL. 😂
Definitely "butchered", seen it many times over the years, causing other issues. I always charge time involved to diagnose, tapped wires cost the customer more $$$. Find the oe green & black, connect to a horn and test.
 
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Old Apr 3, 2021 | 05:19 PM
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Old Apr 3, 2021 | 05:23 PM
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Originally Posted by hummerz
Definitely "butchered", seen it many times over the years, causing other issues. I always charge time involved to diagnose, tapped wires cost the customer more $$$. Find the oe green & black, connect to a horn and test.
True. Guess I'll just live with it at this point, seems like way too much work. Works in every situation but just not the chirp like WHY ugh
 
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Old Apr 3, 2021 | 05:25 PM
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Hook a multi-meter up to the horn wires, press your RKE and see if you get a reading. It will be a short, quick jolt so keep an eye on the meter. At least that should let you know if you're getting current when you arm/disarm.
 
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Old Apr 3, 2021 | 05:46 PM
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Originally Posted by Nonibot
True. Guess I'll just live with it at this point, seems like way too much work. Works in every situation but just not the chirp like WHY ugh
Hell no, you don't give up on a HUMMER! Get to the solution, you are almost there!
 
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Old Apr 3, 2021 | 08:50 PM
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Quick question. My horn says 12V, 5A and 490Hz. Is there a way to know what ya'lls horn runs at? Coz maybe the Amp draw is too much for a 'chirp' signal as mentioned above?
 
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Old Apr 4, 2021 | 02:48 PM
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Post a picture of your rpo codes sticker.
 
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Old Apr 13, 2021 | 03:14 PM
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Originally Posted by hummerz
Post a picture of your rpo codes sticker.
hey bruv, sorry I've been away for work. Where is the RPO codes sticker located?
 
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Old Apr 13, 2021 | 04:33 PM
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glovebox door outside/right of the compartment.




 
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Old May 18, 2021 | 11:12 AM
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Originally Posted by hummerz
glovebox door outside/right of the compartment.


Hi! Sorry I've been away due to personal reasons and being away for work.
i also waited to get the lock actuators fixed, which I did now but still no beep.
attaching the RPO sticker picture, hope you can guide me.
 
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