Tech Tips (Comfort Module (J393) or BCM (J519) Replacement):
This document informs if a comfort or body control module is replaced during normal diagnosis, make sure the factory mode has been switched OFF. This can be accomplished by selecting guided function of either the J393 or J519 or control module OBD of J393 or J519 then selecting adaptation channel 99.
Failure to deactivate factory mode will create a concern where the door locks will not lock and/or unlock with the switch and/or the remotes.
