Passlock TM Module

The passlock TM module contains the theft deterrent system logic. The passlock TM module reads the passlock TM data from the passlock TM sensor. If the passlock TM data is correct, the passlock TM module will pass theft. The passlock TM module will then transmit the code password to the VCM.

During the tamper mode the vehicle may start. The vehicle will quickly stall. If the passlock TM module receives the wrong passlock TM data, the VTD will immediately go into the tamper mode. The tamper mode will lock-out the vehicle fuel injectors for 10 minutes. The SECURITY indicator will flash while the VTD is in the tamper mode.

If the passlock sensor sends a correct password to the passlock module when the ignition is in the ON position, the passlock module will send a fuel enable signal to the VCM. The VCM will not disable the fuel due to any passlock module message for the remainder of the ignition cycle.