Serena Siren Communication Fault

Greetings! I had a similar issue with my Serena not too long ago. That error, 'siren communication fault,' essentially means the car's computer isn't talking to the siren properly, resulting in the alarm system not working. Was the error a permanent one, or could you clear it, and it came back later?

Thanks for the quick response! I was able to clear the error initially, but it reappeared after a short drive. Any ideas on where to begin checking the wiring or connections? Is the siren itself easy to access?

Right, that sounds very familiar. In my case, the fault persisted even after clearing the code, which pointed to a hardware issue. The siren location can vary, but it's often behind the wheel arch liner or near the main ECU. However, and I cannot stress this enough, dealing with alarm systems and wiring can be tricky if you aren't completely sure. Considering the diagnostic points to a defective cable or plug, and that the alarm system is affected, I'd strongly suggest taking it to a workshop. The repair cost should hopefully be around 95€ to fix the faulty connector.

Thanks for the advice! It sounds like this is a bit beyond my current skill level. I'll take it to a workshop to get the cable or plug connection checked. The estimated repair cost sounds reasonable. I appreciate the help!