Personal Automotive Security (Pass-Key(R)) System

The PASS-Key(R) system is a subsystem function of the BCM, which operates using an ignition key with one of 15 resistor pellets embedded in the key. The BCM samples the resistor pellet when the ignition is turned to the ON position. The BCM compares the resistor value in the key to a resistive window to which the PASS-Key(R) system has been programmed; refer to PASS Key Programming. If the resistance of the key does not fit into the programmed window resistance, the BCM will not activate the vehicle theft deterrent relay, the steering column will remain LOCKED, and the PCM will disable fuel by disabling the fuel injectors. The PASS-Key(R) system operates independently of the UTD system; it provides protection even if the UTD system is not armed. However, when UTD is armed and enters alarm mode, the BCM disables cranking and PCM disable fuel delivery. The PASS-Key(R) system also will disarm the UTD system from its armed or alarm modes if the ignition key with the proper resistor pellet is inserted into the ignition lock cylinder and the ignition is turned ON.