Request Switch Removal/Installation[With Advanced Keyless System]: Driver-side/passenger-side

WARNING: This page is about a different car, the 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable.
Remove the front door trim. (see FRONT DOOR TRIM REMOVAL/INSTALLATION .)
Remove the front outer handle. (See FRONT OUTER HANDLE REMOVAL/INSTALLATION .)
Remove the screws A, then remove the handle seat and plate.
Remove screw B, then remove the request switch.

Fig 1: Identifying Request Switch Remove/Install Components

Courtesy of MAZDA MOTORS CORP.