Questions & Answers

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

0 votes
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 1 week ago in Toyota by KenC (130 points)

1 Answer

0 votes
Yes connect the horn output wire to the horn wire in the vehicle
answered 1 week ago by Mike M (6,340 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...

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

...