Driver-side
1. Switch the ignition to off.
2. Disconnect the negative battery cable and wait for 1 min or more
..
3. Remove the front seat..
4. Remove the front buckle..
5. Inspect for continuity between the buckle switch terminals using a tester.

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

Passenger-side (with buckle switch)
1. Since the buckle switch cannot be inspected separately, perform air bag DTC inspection.
(See DTC B0052:09/B0052:11/B0052:14 [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
Air Bag Module And Pre Tensioner Seat Belt Disposal Procedures [Two Step Deployment
Control System]
Front Buckle Removal/InstallationAwd Warning Light
Purpose, Function
Warns the driver of a AWD system malfunction.
Construction
The AWD warning light is built into the instrument cluster.
Operation
If the self-diagnostic function stores a DTC, the warning light illuminates
to alert the driver of the malfunct ...
Active Command Modes Inspection [Blind Spot Monitoring (Bsm)]
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization
screen of the M-MDS.
a. Select “DataLogger”.
b. Select “Modules”.
c. Select “BSML” or “BSMR”.
3. Select the simulation items from the PID table.
4. ...
Air Intake Actuator [Manual Air Conditioner]
Purpose
The air intake actuator moves the air intake door in the blower unit to switch
the air intake port.
Function
The air intake actuator drives the motor based on the signal from the climate
control unit and moves the air intake door to the FRESH or REC position.
...