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Re: 2001 Sierra 2500 HD NO HORN
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Originally Posted by bdavis
Here is the deal....i have no horn when I apply it at the steering wheel but when i chirp the alarm key it will cirp slightly. I have checked all the fuses and relays and all seem fine. Any ideas?
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Since the horn will activate with the key fob (try the panic button, does the horn beep on and off) this is a good indication that the fuse, relay, BCM and wiring between them is good.
I would look at the horn pad and its wiring as being the fault.
Remove the relay and use a test light between the circuits on the coil side at the fuse box and depress the horn pad..if the light doesn't work, that will confirm my idea.
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