The Body Control Module is the brain of the system and when it notices the driver door is not cloed, it would ignore the locking function when ignition switch is turned on. You either need to remove the key or close the door to reactivate this function and this seems to be the symptoms as described.
Since the door ajar warning indicator is not working, it could be the BCM or ground connections that is causing the problem.
Check the ground connections at left kick panel.
Monday, September 24th, 2012 AT 5:41 AM