July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Driver Side

Switch the ignition to of.
Disconnect the negative battery cable.
Remove the front seat. (See FRONT SEAT REMOVAL/INSTALLATION .)
Remove the front buckle. (See FRONT BUCKLE REMOVAL/INSTALLATION .)
Inspect for continuity between the buckle switch terminals using a tester.

If not as indicated in the table, replace the front buckle.

Fig 1: Front Buckle Terminals Continuity Reference Chart (Driver Side)

G07626715

Courtesy of MAZDA MOTORS CORP.

Fig 2: Front Buckle Circuit (Driver Side)

G06206106

Courtesy of MAZDA MOTORS CORP.