What causes the automatic doorlock to sound like a 3 round burst of a M-16 rifle on 2008 Chrysler Town & Country

The power lock on the front passenger door engages 3 times when it is told to lock by the remote, door lock button and when reaching 15 mph and it does not always lock. you have to hit it twice sometimes. i guess it is getting a lock-unlock-lock or an unlock-lock-unlock signal??anyone have any ideas?

Asked by for the 2008 Chrysler Town & Country
2 answers
scan codes for bcm module and see if there are any codes
Switch or actustor.