Outline
Side impact bars built into the front and rear doors have been adopted.
Door modules have been adopted on the front and rear doors.
Structural view

Door Trim
Front Door Checker Removal/InstallationTorque Sensor
Purpose/ Function
The torque sensor detects the steering torque and the steering direction,
and outputs the signal to the Electric Power Steering (EPS) control module (CM).
Construction, Operation
The Hall IC-type torque sensor is installed to the top of the steering column
...
Headliner
Purpose/Function
The headliner is equipped with a shock absorbing pad for driver's head protection
during a collision.
Construction
The front and rear side of the headliner is equipped with a shock absorbing
pad with a plastic rib-pad structure.
...
Buckle Switch Inspection
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 tab ...