Alfa Gtv Alarm problem - Not arming
I disconnected the receiver under the internal lights to replace the roof material.
However when I re-connected everything, the alarm doesn't arm and no flashes of blinkers or internal alarm light. The central locking works fine with the key remote. So I'm assuming that the key is still synced with receiver.
I checked all fuses under the steering and they seem all fine
Is it possible that the receiver and alarm lost the sync? And if yes how do I reset?
I turned the alarm switch on and off with the black key and it bleeped so I'm also assuming that the alarm unit under bonnet is not defective.
I have an Alfa alarm fitted with the black button on the red key.