I have found this for you to read.let me how it goes. Hope this was helpful.
Door Lock Error occurs if the door cannot be unlocked. It
will try to lock it 6 times before displaying the error.
Lock Mechanism broken or removed from the Door
Door Lock/Switch Assembly
the wire harness connections to the Door Lock/Switch Assembly
and Central Control Unit (CCU)
Lock/Switch Assembly Failure
Thank you for writing to fix ya.
Best Regards Richard