Questions & Answers

2018 Toyoya Corolla H-key. How to enable horn for alarm? Evo one

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2018 Corolla with only remote locks. No oem alarm that I can see.

Installed Evo one with t-harnesses. Enabled alarm. Remote start works. Alarm flashes lights but the horn just won’t honk. Can it use the car horn and if so, how?
asked May 12, 2019 in Toyota by KenC (130 points)

1 Answer

0 votes
Yes connect the horn output wire to the horn wire in the vehicle
answered May 12, 2019 by Mike M (9,800 points)
The output wire (orange/black) should connect to which wire under the dash? It seems it’s the one wire the instructions don’t have a picture/location for. Other than that this install has been idiot proof.

I don’t want to install a siren, but if I have to...
commented May 12, 2019 by KenC (130 points)

Detailed information with picture can be found here https://www.wirecolor.com/en/vehicles/toyota_corolla_-_h-key_(2017-2019)/

commented May 13, 2019 by Mathieu Bertrand Collin2 (62,060 points)

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