Driver's Side

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

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

Fig 1: Door Lock Switch Terminal Continuity And Resistance Chart - Driver'S Side
Courtesy of MAZDA MOTORS CORP.

Fig 2: Inspecting Door Lock Switch - Driver'S Side
Courtesy of MAZDA MOTORS CORP.
- If the continuity is not as indicated in the table, replace the door lock switch.