On this particular vehicle, the master switch on the driver's door really isn't the master of the power door lock system. All power lock functionality(aside from the driver's door lock) is carried out by the Passenger Door Module (PDM). The PDM is integrated with the door lock and power window switches mounted in the right front passenger door. I would start by checking Fuse 12 in the PDC under the hood. If the fuse is good, the PDM most likely has an internal failure. Unfortunately these modules where know for having issues. I've also attached the complete power door lock system wiring diagram for your reference.
Let us know how you make out!
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Monday, November 11th, 2019 AT 8:39 PM