FAQ Library

PASSlock relearn procedure

PASSlock is designed to prevent vehicle theft by disabling the fuel injectors unless the lock cylinder is engaged by the correct mechanical key. The theft deterrent system uses four components for theft prevention:

- the lock cylinder
- the ignition switch
- the instrument cluster (IPC, 96-99 models) or body control module (BCM, 00-05 models)
- the powertrain control module (PCM)

If one or more of these components are replaced, then the PASSlock system must be reprogrammed. The procedure is different between 96-99 and 00-05 J-cars.


Fuel Password Learn Procedure

In order for a theft detterrent vehicle to run, a password is communicated between the Intrustment Panel Cluster (IPC) and the PCM. If a PCM is replaced, the new PCM needs to learn the correct password of the vehicle. When the new PCM is installed, the EEPROM calibration is flashed into the new PCM and the vehicle will learn the new password upon initial ignition ON. If the IPC/BCM is replaced, the PCM needs to learn the new password from the IPC/BCM. The password learn procedure is as follows:

96-99 J-car

1. Attempt to start the vehicle, then leave the ignition ON. The THEFT SYSTEM light telltale will flash for 10 minutes.

2. When the THEFT SYSTEM telltale stops flashing, start the vehicle. Once the vehicle is running, the password is learned.

00-05 J-car

1. Turn ON the igniton, with the engine OFF.

2. Attempt to start the engine, then release the key to ON (vehicle will not start).

3. Observe the SECURITY telltale, it will be flashing. After approximately 10 minutes the telltale will turn OFF.

4. Turn OFF the ignition, and wait 5 seconds.

5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes. The vehicle is now ready to relearn the PASSlock Sensor Data Code and/or passwords, on the next ignition switch transition from OFF to CRANK.

IMPORTANT: The vehicle learns the PASSlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You MUST turn the ignition OFF before attempting to start the vehicle.

6. Start the engine. The vehicle has now learned the PASSlock Sensor Data Code and/or password.

7. With a scan tool, clear any DTCs if needed. History DTCs will clear themselves after 100 ignition cycles.

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Created:	09-24-2005
Modified:	09-24-2005
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