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Discussion Starter · #1 ·
Hi guys,
Just wondering if anybody else on here has had same problem.
One night my alarm was going g off and wouldn't disarm. Took a good few attempts before it switched off.
Now my alarm doesn't sound when it goes off, just indictors blink.
I have swapped out the alarm horn and checked fuse but still no sound.
Any ideas , would appreciate any ideas
Ps. It's an Audi A5 coupe 2.0L 2015

Thank you
Ant
 

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Could it be that your model has a separate battery to power the alarm? 🤷🏻‍♂️ I have seen security boxes getting corroded due to battery leaks and the audio element is often the first to go.
 

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2015 S5 Coupe
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Did you swap it out with a known good one? I had similar issues with mine recently and a eBay replacement solved my issue. You can check the voltage across the pins on the wiring loom, so ground, 12v and around 5v for the control. If that measures correctly then it has to be the module
 
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