Driver's Side

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 table.

Fig 1: Door Lock Switch Continuity Reference Chart (Driver's Side)
Courtesy of MAZDA MOTORS CORP.
- If the continuity is not as indicated in the table, replace the door lock switch.
  
  Fig 2: Identifying Door Lock Switch Connectors (Driver's Side)
  Courtesy of MAZDA MOTORS CORP.