01134 - Alarm Horn (H12) 004 - No Signal/Communication

Just ran a vagcom scan on the wifes 55 plate Golf plus and found a couple of codes.

first is the drivers wing mirror indicator bulb has gone.. looks like a new light unit to fix it..

The second is this:

I've tested the horn... yep it works... so why am I getting this fault? - I cleared it, then it came back on next scan?!?!?

 

Alarm horn will be the fault, if its still working then you can just leave it for now.

 

you may also get a false alarm once in while , guaranteed at 4 am!