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Opel Captiva 2014: Malfunction of the alarm system and communication problems with the siren

Hello everyone, My 2014 Opel Captiva with just under 200,000 km on the clock and a petrol engine is giving me a bit of a headache. I've recently been having trouble with the alarm system - it no longer works properly. I suspect that the problem is somehow related to a "communication siren alarm system fault", but I'm not sure. Unfortunately, I didn't have a good experience at the last workshop visit and would therefore like to know in advance whether any of you have ever had a similar problem and how it was solved? Thanks in advance for your help!

(Translated from German)

4 comment(s)

Hi, I had a similar problem with my 2013 Opel Insignia. The symptoms were not exactly the same for me, but it was also related to the alarm system. In my case, the control unit was actually defective. It represents the "brain" of the vehicle and if it is not working properly, there can definitely be problems, including with the alarm system. In my garage experience, it turned out that the control unit was no longer sending correct signals to the alarm system, which led to the irregular functions I observed in my car. The control unit had to be replaced. It's quite serious damage because the control unit is essential for the car to function. I hope that my experience will help you a little and that you can solve your problem soon. Good luck with that! Best regards

(Translated from German)

Hey, thanks for the input, it's very helpful to hear that someone has had a similar experience before! I've actually never had any problems with the control unit before. Do you remember how much it cost you to fix it? And have you had any other problems since then, or is everything back to normal after the repair? Thank you and best regards!

(Translated from German)

Moin, I remember the control unit in my Opel cost me just under €1000.0 to fix. It wasn't exactly cheap, but since it was fixed, my car has worked like a dream. The thing is, it's a pretty complex machine and, if it goes haywire, it could affect pretty much every system in the car. To answer your second question, after the ECU was fixed, the "communication siren alarm system faulty" problem also disappeared. So, in my case, everything is really back to normal since the repair. I hope it goes just as well for you. All the best and keep us up to date! Best regards!

(Translated from German)

Hi again, That's a lot of money, but it's good to hear that you haven't had any further problems. I will definitely consider this option and raise the matter with my garage. I'm still a bit worried because my last visit there wasn't the very best, but hopefully things will go better this time. I'll keep you posted and get back to you with any news! Many thanks and best regards!

(Translated from German)

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