Passlock Learn Procedures

WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: If any module or device listed is replaced, programming of the module must be done prior to performing the Passlock Learn procedure.

Perform the Learn Procedure if any of the following components have been replaced:

The body control module (BCM)
The ignition switch
The engine control module (ECM) (L81)
The powertrain control module (PCM) (L61)

Refer to Programming Theft Deterrent System Components in Theft Deterrent for the proper procedure.

IMPORTANT: After programming, perform the following to avoid future misdiagnosis:

Turn the ignition OFF for 10 seconds.
Connect the scan tool to the data link connector.
Turn the ignition ON with the engine OFF.
Use the scan tool in order to retrieve history DTCs from all modules.
Clear all history DTCs.