Trunk Lid Latch Switch Inspection

Disconnect the negative battery cable.
Remove the trunk lid trim. (See TRUNK LID TRIM REMOVAL/INSTALLATION .)
Remove the trunk lid latch and lock actuator. (See TRUNK LID LATCH AND RELEASE ACTUATOR REMOVAL/INSTALLATION .)
Press the latch in using a flathead screwdriver to inspect the latch lever condition.

Fig 1: Inspecting Latch Lever Condition
Courtesy of MAZDA MOTORS CORP.
Verify that the continuity is as indicated in the table.
- If not as indicated in the table, replace the trunk lid latch and release actuator
  
  Fig 2: Continuity Chart
  Courtesy of MAZDA MOTORS CORP.
  
  Fig 3: Trunk Lid Latch Switch - Circuit Diagram
  Courtesy of MAZDA MOTORS CORP.