Anti-Theft System: Operation

When mechanical key turns the PASSLock(R) lock cylinder, PASSLock(R) data is created by a rotating magnet turning past a stationary hall effect sensor. Data is sent to Body Control Module (BCM). The BCM determines the validity of the data within a preset time window, then sends a coded password to the Power Control Module (PCM), which then allows fuel injectors to operate normally.

If data is not recognized, engine is prevented from starting by disabling fuel injectors and not energizing starter relay. If data is wrong, BCM will shut down for 3 minutes, DTC will set, SECURITY indicator will illuminate and ignition switch input is ignored.