Car Alarms: truck alarm, alarmtek, chevy silverado

Question
my truck wont start the security light is on the starter is working tried unlocking the doors threw the outside but nothing checked the fuse box and it good it is  a 99 chevy silverado 4 wheeldrive thank you

Answer
PASSLOCK 2 issue. Somehow it was either
breached, or is worn out and needs to be bypassed.

Have a look at www.GMPASSLOCK.com and see the PLJX
bypass kit with 2 relays. I think you will likely
need it.

Common issue, but fixable.
:>)

ALARMTEK