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security system does not chirp after horn replacement
hi,
my stock 3-terminal horn died, so i bought a new one. new horn is a regular one and has 2-terminals. i figured out which of 3 terminals in horn connector are +12, and horn control button, and wired them to the new horn. the horn sounds fine, but security system does not chirp anymore when armed. does the 3rd terminal in horn connector have anything to do with security system? i assume that the apendix attached to my old horn was a relay. do i need to take any precautions when wiring a 2-terminal horn? do i need to make use of the 3rd terminal to enable security chirp? how do i do that? thanks all. |
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#3
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it's Saturn SC-2 '99.
thank you. |
#5
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the strangest thing is that when i connect a siren from my home alarm
instead of horn, the siren works both as a horn, and as security chirp (even withought the 3rd terminal connected). however, when i replace the siren with the horn, there is no chirp. the siren has a polarity, and i thought maybe the polarity makes the difference. so i placed a diode in series with the horn - still no chirp. blah blah wrote: > In article . com>, > says... > > hi, > > my stock 3-terminal horn died, so i bought a new one. new horn is a > > regular one and has 2-terminals. i figured out which of 3 terminals in > > horn connector are +12, and horn control button, and wired them to the > > new horn. > > the horn sounds fine, but security system does not chirp anymore when > > armed. > > does the 3rd terminal in horn connector have anything to do with > > security system? > > i assume that the apendix attached to my old horn was a relay. do i > > need to take any precautions when wiring a 2-terminal horn? do i need > > to make use of the 3rd terminal to enable security chirp? how do i do > > that? > > thanks all. > > > > > In article . com>, > says... > > it's Saturn SC-2 '99. > > thank you. > > From what I've seen your theory is correct. The 3rd wire appears to be > another ground which is completed by the alarm system. Basically you > have no alarm sound now because it has no way of grounding the horn. Now > the question is can you tie the 2 ground wires together??? I am not > sure, it could cause a problem or it may work just fine. |
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