1.CHECK SEAT BELT BUCKLE SWITCH When checking “BUCKLE SW” in DATA MONITOR in METER/M&A, check that ON/OFF display changes synchronized with the insertion operation to the seat belt buckle.

Monitor item | Condition
BUCKLE SW | When driver side seat belt is not fastened: ON
When driver side seat belt is fastened: OFF

Is the inspection result normal?
YES>>Seat belt buckle switch (driver side) circuit is normal.
NO>>Refer to Diagnosis Procedure.