Ah, I see. There is no grey area with the alarm. It's either good or dead. Thanks.If the alarm is being bypassed it is due to alarm failure. If the alarm is dead nothing will work and you must bypass it.
The immobilizer is a mode of the alarm along with the central locking. You can program the immobilizer to be off if the alarm is working and continue to use central locking and arming the alarm.
John, a quick search brought me to this discussion, which is what you were telling me recently when you were here in Ohio. As you noted on our ride to Roscoe Village, my brake lights do not work. It's a good thing you were there because I did not know that! Obviously I'm not doing my T-CLOCS inspection like I should.Yes the thing that kills the alarm is the internal (non-replaceable) battery. It either dies or shorts out causing fuse F4 to blow. Then you have to replace or bypass. That is the only known failure mode for the alarm I have seen in the last 14 years.