That sounds like a broken power feed or ground wire to the door. Easy way to test. Take a common test light or even a headlight bulb with wires attached. Pull the connector off the switch and find pin 12 Tan wire. With the test light grounded you should have power there with the key on. If not, that wire is broken. If yes, disconnect the ground side of the test light and connect it to pin 4 Black wire. Key on light should light. If not but it lit earlier that ground is bad. The common failure point is in the flex harness that runs between the A-pillar and the door. The constant use of the door flexes the wires, and they fail internally.
The door lock switch simply sends a signal to the remote lock module using a different resistance to ground for lock or unlock. As both your locks and windows are not working I suspect the ground is the issue as they share that, but testing from the window switch should tell you.
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Sunday, May 19th, 2024 AT 8:21 AM