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 the test plan through GFF or through Vehicle Self Diagnosis in 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.
