Passlock™ System
WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
The Passlock™ System is provided in order to prevent vehicle theft if the ignition lock cylinder is forced to rotate or the ignition switch is operated while separated from the ignition lock cylinder case. If starting is attempted without authorization from the Passlock™ System, the powertrain control module (PCM) will disable the fuel injectors causing the engine to stall immediately after starting.
The components of the Passlock™ System are as follows:
- The ignition lock cylinder and key
- The ignition lock cylinder case, including the Passlock™ Sensor
- The ignition switch
- The body control module (BCM)
- The security indicator on the instrument cluster
- The powertrain control module (PCM)