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/InstallationBrake Fluid Air Bleeding
CAUTION:
Brake fluid will damage painted surfaces. Be careful not to spill any on
painted surfaces. If it is spilled, wipe it off immediately.
NOTE:
Keep the fluid level in the brake fluid reserve tank at 3/4 full or more
during the air bleeding.
Begin air bleedin ...
Center Accessory Socket Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the upper console..
3. Insert a tape-wrapped flathead screwdriver into the gap between the cap tab
and socket.
4. Move the flathead screwdriver in the direction of the arrow (1) shown in the
figure, press the center accessory socket ...
Air Intake Actuator Inspection [Manual Air Conditioner]
1. Connect battery positive voltage to air intake actuator terminal B (or C),
connect terminal C (or B) to ground, and then verify that the air intake actuator
operates as shown in the table.
If the operation condition is not normal, replace the air intake actuator.
...