Car Alarms: alarm choas, gmc sierra, passlock ii

Question
when unlocking the doors from inside the alarm goes crazy how can i disarm the alarm. i have no alarm clicker its broke. 2000 gmc sierra

Answer
Obvious answer is to get the new "clicker".

There are actually 3 possible alarms in your vehicle.

One is the PASSLOCK II fuel injection immobilizer.
Second is the keyless entry horn honking,
headlight flashing alarm, and the last is
the posibility there is a siren, and that means an
after market alarm with it's own controls.

All could be working just fine, but
no way to control it.

Hard to say from here, but all relate to replacing
the transmitter.

That's my advice.

ALARMTEK