S60 Siren Communication Fault

Whoa, that sounds familiar! I've got an S60 myself and had some alarm weirdness a while back. Was your battery recently dead, or did you mess with any of the wiring under the dash?

Nah, battery's good and I haven't touched any wires. The error code specifically mentions the siren. Is that where you were having trouble too?

Yep, siren issues ring a bell! Turned out to be some kind of short. Honestly, with alarms and airbags and all the sensitive stuff, I just took mine to a workshop, they sorted it real quick!

Okay, good to know. I was hoping to avoid the workshop, but it sounds like that's the way to go. Thanks for confirming I'm not totally crazy!