1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Inspect for resistance and continuity between the seat warmer switch terminals using a tester.

If not as specified, replace the seat warmer switch.
Seat Track Position Sensor Removal/Installation [Two Step Deployment Control
System]
Seat Warmer Switch Removal/InstallationInput/Turbine Speed Sensor Inspection [FS5 A EL]
CAUTION:
Water or foreign objects entering the connector can cause a poor connection
or corrosion. Be sure not to drop water or foreign objects on the connector
when disconnecting it.
On-Vehicle Inspection
1. Perform the following procedures.
a. Remove the battery cover..
b. ...
Side Wall Removal/Installation
1. Pull out the side wall in the direction shown in the direction of the arrow
shown in the figure, then remove the clips.
2. Remove the side wall in the direction of the arrow shown in the figure.
CAUTION:
When remove the side wall, be careful not to damage the guide.
3 ...
Front Seat Belt Removal/Installation [Standard Deployment Control System]
WARNING:
Handling the front seat belt (pre-tensioner seat belt) improperly can accidentally
deploy the pre-tensioner seat belt, which may seriously injure you. Read the
air bag system service warnings and cautions before handling the front seat
belt..
WARNING:
Th ...