Vehicle Theft Security System (VTSS)

Anti-theft control system, or Vehicle Theft Security System (VTSS), monitors vehicle doors, hood, trunk key cylinder and ignition for unauthorized operation/entry. When alarm is triggered, horn will sound for up to 3 minutes and parking lights will flash for 15-18 minutes. When an unauthorized entry into vehicle occurs, VTSS module signals Powertrain Control Module (PCM) through CCD bus to disable the ignition system. PCM then "zeros out" pulse width of fuel injectors, thus preventing engine from starting (start/stall condition). The vehicle will remain disabled until VTSS is disarmed.

To verify if VTSS is operational, perform the following procedure. Open driver's door (all others closed). Remove ignition key. Lock doors with interior Power Door Lock (PDL) switch. Close driver's door. If VTSS SET light flashes, system is armed and operational. If VTSS SET light does not flash, 20 engine cranking cycles have not occurred or there is a problem with VTSS system. VTSS will not arm if doors are locked using keys or manually locked from door knob. If horn will sound 3 times when either front door is unlocked, indicating alarm was activated.