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Home >> Cadillac >> 1999 >> Escalade V8-5.7L VIN R >> Repair and Diagnosis >> Steering and Suspension >> Steering >> Steering Column >> Description and Operation >> EVO/PASSLOCK Module
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EVO/PASSLOCK Module

The EVO/PASSLOCK module contains the theft deterrent system logic. The EVO/PASSLOCK module reads the PASSLOCK data from the PASSLOCK sensor. If the PASSLOCK data is correct, the EVO/PASSLOCK module will pass theft. The EVO/PASSLOCK module will then transmit the code password to the VCM/PCM. During the tamper mode the vehicle may start. The vehicle will quickly stall. If the EVO/PASSLOCK module receives the wrong PASSLOCK 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 EVO/PASSLOCK module when the ignition is in the ON position, the EVO/PASSLOCK module will send a fuel enable signal to the VCM/PCM. The VCM/PCM will not disable the fuel due to any EVO/PASSLOCK module message for the remainder of the ignition cycle.
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