Evo-One for 2014 Toyota Tundra. Horn/Siren output not working

Question

I am trying to use the Horn/Siren output (-) on Evo-One for after market siren. It is pink/black wire accoring to the manual. I am running 79.24 and 1.15 on my Evo-One. I tried different combination of option for #12 but I am not getting any voltage detected on orange/black wire. Can you check the option on my Evo-One and let me know whether I have the options right per my service number? I would like to have a after market siren to give me a chirp when I am clicking the lock button on the remote whether I am locking the car or unlocking the car or what so ever. I set option 11.2 to cofirmation on LOCK/UNLOCK always.

Answer 1

horn output is orange/black on EVOONE, are you sure you are following the right guide ?

Comments

You are correct. I meant to say orange/black wire not pink/black per Evo-One Quick Installation Guide RF-Kit diagram. I corrected the question. Pink/black wire is used for hood switch which I installed. There is no voltage detected neither + or - on orage/black wire no matter what option I set on Evo-One on 1-click lock/unlock or 2-click lock/unlock. It is suppose to be - out 750mA.

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Can you try putting option 12 back to mode 1 (Horn only) and test again.

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It is already set to 12.1 Horn only in the option. I set option 11.2 to confirmation lock/unlock sound always. Is there any other option that I may have missed? I also set 14.2 to both Alarm and Remote Start enabled.

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The chirp is only on LOCK and not on remote start.

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Can you please check the option on my Evo-One and make sure I have all the options set properly? I say it again, there is no voltage detected on orange/black wire for 1-click LOCK, 1-click UNLOCK, 2-click LOCK, 2-click UNLOCK, and so on. Do you get this?

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I updated the orignal question to reflect that I am trying to do. I want the siren to chirp when I press LOCK. I don't detect any voltage out of orage/black wire when I press LOCK on the remote once.

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Turn off the B1 , B2, and B3 options in the bypass side options. The B2 is most likely causing your problem since it will convert all the inputs and outputs for other uses.

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Hello Robert, Thanks for your reply. I tried turning off all three options B1, B2, and B3. However, it did not work. There is no voltage detected on orange/black wire at all whether 1-click lock/unlock. I tried only turning off B2 but still no go.

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Just to make sure this is clear. The output of the EVO is negative, there will not be voltage if testing for voltage.

Connect the wire to horn directly and test that way. Close and lock the doors (leave a window open), wait a minute, then open a door without pressing unlock.

Are you using this with an RF-KIT kit or with the factory remote?

The EVO-ONE does not manage horn honking from the factory remote, only from an aftermarket remote.

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Yes, I understand that orange/black wire is - when trigged. I am testing with voltage meter to see whether it completes the circule when I have orange/black and 12v source. I also tested with relay and siren wired per Evo-All stand alone instruction as shown. Orange/black wire is connected to terminal 85 on relay. When terminal 85 is grounded, it will chirp or go off.

I am using Evo-One with factory remote only. I did not know that Evo-One stand alone will not manage horn/siren. I guess this anwers the mistery of why there is nothing detected on oranage/black wire. Thank for the information.

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Yes, exactly. The EVO-ONE will not ouput when using the factory remote to lock/unlock since most vehicles already have factory alarm honking the horn. It would cause double honks all the time. I can see this option actually being added in the future though.

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My 2014 Toyota Tundra will only beep when lock (one beep) and unlock (two beep). Beeper is located behind front bumper on the driver side. Horn is activated when factory alarm goes off or panic button is pressed. This is interesting. If I hook up the siren to beeper, it will only chirp on lock and unlock confirmation. But it will not go off when factory alarm goes off or panic button is pressed.

I would love to have horn/siren option enabled on Evo-One like Evo-All. This way it will chirp on factory remote. I don't mind both beep and siren going off at the same time.

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Well.... if you do not mind the honk. Just wire the horn to trigger everytime you press lock :D

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im having the exact same issue, 2015 tundra, everything works except for the horn output. I cannot get a horn confirmation with factory fob or with fortin rf kit. It was installed exactly as the instructions asked, I dont believe there is anything installed directly to the horn. I assumed that the evo would control those functions. I have yet to figure out a work around. One note, my alarm does go off when a door is opened and the alarm is active but it will not go off using the supplied fortin shock sensor nor will it confirm lock or unlock with 2 clicks. Wondering if adding an aftermarket siren to the evo unit would fix this issue or not, id rather have it function off of the horn though.