I suspect that your left front door disarm switch is either bad or there is a problem with the wiring. Here is a wiring diagram for your antitheft system:
https://drive.google.com/file/d/1QEZ0U3oF6aRH4lJ2Jj25a-KnBuw4Db5B/view?usp=sharing
When you unlock the door with the key, that dark green/white wire should be pulled down to ground. You should have some voltage on the dk grn/wht wire and when you turn the key in the lock cylinder, that voltage should go away and you should see ground.
Try new Key FOB battery or the 2nd fob that came with car new
fobs that old have no battery good that told. ever.
the free user guide covers how to do that, located in glove box.
a low battery can cause, secure codes to open the door to be
corrupted, and thinks someone is trying to hack the car.
batteries are first. more are coin cell even sold at wal-mart no kidding.
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