Horn activated randomly

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Gmac11283
Posts: 2
Joined: Mon Mar 01, 2021 9:46 am

Horn activated randomly

Post by Gmac11283 » Mon Mar 01, 2021 9:52 am

Just bought the wife a 21 Q2 35TFSI - yesterday as she was driving the horn activated itself for around 15 seconds - anyone else had this issue - I cannot see a reason it would happen - I have fitted an aftermarket dash cam and used and unused fuse location in the glove box but can’t see this contributing to the horn issue as I used a piggy back fuse. I have located the horn fuse in the engine fuse box in case it happens again

Mark7551
Posts: 16
Joined: Wed Oct 11, 2017 6:14 pm

Re: Horn activated randomly

Post by Mark7551 » Mon Mar 01, 2021 2:20 pm

If you were driving a new 21 reg car yesterday you were doing it illegally as it is today that 21’s are released.

Gmac11283
Posts: 2
Joined: Mon Mar 01, 2021 9:46 am

Re: Horn activated randomly

Post by Gmac11283 » Mon Mar 01, 2021 9:30 pm

Live in Northern Ireland so when we say 21 plate we mean the year- car bought 14.1.21

Geh2020
Posts: 96
Joined: Mon Feb 10, 2020 12:38 pm

Re: Horn activated randomly

Post by Geh2020 » Tue Mar 02, 2021 9:25 am

Hi,

Welcome to the forum.

It could be linked, so I would disconnect the dash cam for a day or so to see if the horns sounds off again. If is doesn’t sound the horn, then reconnect the dash cam and see what happens. If it sounds off again then you can be reasonably sure the dash cam is causing the issue. Maybe a call to the supplier of the dash cam to see if they have had any customers reporting this issue.

Enjoy the car.
2020 Q2 35 tfsi Black Edition s-tronic, Mythos Black and climate control.

Mods so far using Carista, needle sweep on startup.

HiTec
Posts: 20
Joined: Mon Dec 30, 2019 10:46 pm

Re: Horn activated randomly

Post by HiTec » Tue Mar 23, 2021 9:29 am

Hi,

Control Circuit for Signal Horn
- Open or Short to Ground

03266 - Control Circuit for Signal Horn
006 - Short to Plus

Two codes and no sound at all from the horn. I bet wires are broken. Any idea where horn is located inside bumber?
Finland
Q2 2.0 TDiq

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