I am trying to find a replacement door handle or troubleshooting guide for the switch on the drivers door. The passive entry and locking works on the passenger door handle but not the drivers door. This is why I am thinking it is something with the switch on the drivers door. Every door handle I've found doesn't have that button in it. Any help on troubleshooting or replacement part numbers would appreciated.

The troubleshooting guides I've found have all been centered on the system not working at all.