Buckle Switch Inspection

Remove the battery cover.
Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] .)
Disconnect the buckle switch connector.
Inspect for continuity between the buckle switch terminals using a tester.
- If not as indicated in Fig 1, replace the buckle.
Fig 1: Buckle Switch Terminal Continuity Table
Courtesy of MAZDA MOTORS CORP.

Fig 2: Checking Continuity Between Buckle Switch Terminals
Courtesy of MAZDA MOTORS CORP.