V70 Siren Communication Fault

A siren communication fault on a Volvo V70, model year 2003? Yes, it is plausible that a defective cable or plug connection is the cause. Before delving deeper, are there any other electrical issues you've noticed, or is it strictly the alarm system?

Thank you for your reply. To my knowledge, there are no other electrical anomalies present. Should I go to the workshop to get it checked out, or is it safe to assume it will only get worse?

Given the symptoms and the potential cause, a visit to a qualified workshop would be wise. A faulty alarm system can compromise vehicle security. It is reasonable to assume it would only get worse. A repair will cost around 95€.

I appreciate your professional assessment. The car is now at the workshop; the siren communication fault was indeed caused by a faulty cable. Thank you!