Driver's Side

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
Remove the door lock switch. (See POWER WINDOW MAIN SWITCH REMOVAL/INSTALLATION .)
Verify that the continuity is as indicated in the chart.

Fig 1: Door Lock Switch Terminal Continuity Chart (Driver Side)

Courtesy of MAZDA MOTORS CORP.

If the continuity is not as indicated in the chart, replace the door lock switch.