Ok this is what i found,plus you will need a volt/ohm meter to do these checks.All of these checks can be done where the door lock assembly is at except for the motor control board.I will look to see if i have the ohm resistance numbers also for you.
Faulty door lock selenoid
loose wire connections on the door assembly
faulty door lock switch
faulty door lock sense switch
check for bad motor control board (LCD only)..
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