Ensure that the ignition switch remains in RUN until the indicator stops flashing.
The instrument cluster and the PCM require the full 10 minutes in order to complete the learn cycle. During the long tamper mode cycle, the THEFT indicator will flash for the full 10 minutes. If the system enters the long tamper mode, ensure that the system completes a long tamper mode cycle. If you replace any of the above components, the system will enter the long tamper mode. The Tamper mode will engage if any of the following components change: Important: Due to component variability, the vehicle theft deterrent (VTD) system must have the learn procedure performed regardless, if the vehicle starts on the first ignition cycle after a VTD repair.Īll codes in the theft deterrent module must be cleared for a relearn.Įngineers design the Passlock™ system in order to prevent theft even if the various theft deterrent parts change. PASSLOCK Changing - Components Description All codes in the theft deterrent module must be cleared for a relearn. The security indicator on the instrument clusterĭid you clear codes ?. The components of the Passlock?"¢ System are as follows:
The Passlock?"¢ controller also interfaces with the driver displays subsystem to indicate, via a Security telltale, the Passlock?"¢ subsystem's status and acute subsystem failures.
If the data is correct, indicating rotation of the lock cylinder with the proper mechanically cut key, then the Passlock?"¢ controller sends a password to the Powertrain controller over the class 2 bus to indicate that starter engagement should be allowed. The data consists of a voltage generated by a voltage divider network created between the Passlock assembly and the Passlock?"¢ controller. The Passlock controller reads the coded Passlock?"¢ data signal. The Passlock?"¢ system is provided in order to prevent vehicle theft if the ignition lock cylinder is forced to rotate. Vehicle Theft Deterrent (VTD) Description and Operation Ground is supplied through the engine block. The starter relay coil control circuit is then grounded by the ECM/PCM closing the switch in the starter relay suppling 12 volts to the S-terminal of the starter. There is a splice on this circuit in the fuse block-underhood that supplies power for the starter relay coil. The ECM/PCM receives a 12-volt signal from the park/neutral position (PNP) switch or clutch pedal start switch notifying that it is safe to start the engine.
The BCM verifies that theft is not active and sends a serial data message to the engine control module (ECM)/powertrain control module (PCM) requesting engine start. Moving the ignition switch to the START position signals the body control module (BCM) through discrete inputs from the ignition transducer that engine crank has been requested. You already spent money on a new starter needlessly. You have no clue of the complexity of this system, do yourself a favor an take it to a qualified repair shop.
IF the PCM / ECM see's voltage from the Internal mode switch in the transmission it knows it is in park or neutral an see's no problems with the anti- theft system it will energize the crank relay sending Battery voltage on the purple wire to the starter solenoid. When you turn the key to start the BCM see's this an sends a message on the serial data network to the PCM / ECM - engine computer. This is computer controlled, Ignition switch is a low voltage input to the BCM - body control module. There is no direct connection from the purple wire to the ignition switch.