DTC B00A0:28 [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)]

System malfunction location	• Occupant classification sensor calibration setting invalid
Detection condition	Warning • Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only the detection conditions may cause injury due to an operating error, or damage the system. When performing an inspection, always follow the inspection procedure. • Calibration set value not within valid range.
Fail-safe	Not applicable
Possible cause	• Occupant classification sensor deformed or malfunction • Object placed on front passenger-side seat during calibration of occupant classification sensor • Improperly installed front passenger-side seat part at time of calibration • Deformed floor where attached to front passenger-side seat • Front seat warmer is dry malfunction • Seat cushion is damp • Occupant classification sensor malfunction • SAS control module malfunction • Power seat malfunction
System wiring diagram	Not applicable

System malfunction location

• Occupant classification sensor calibration setting invalid

Detection condition

Warning

• Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only the detection conditions may cause injury due to an operating error, or damage the system. When performing an inspection, always follow the inspection procedure.

• Calibration set value not within valid range.

Fail-safe

Not applicable

Possible cause

• Occupant classification sensor deformed or malfunction

• Object placed on front passenger-side seat during calibration of occupant classification sensor

• Improperly installed front passenger-side seat part at time of calibration

• Deformed floor where attached to front passenger-side seat

• Front seat warmer is dry malfunction

• Seat cushion is damp

• Occupant classification sensor malfunction

• SAS control module malfunction

• Power seat malfunction

System wiring diagram

Not applicable

Step	Inspection	Action
1	PERFORM SAS CONTROL MODULE CONFIGURATION (AS-BUILT DATA USE) • Perform the SAS control module configuration using the M-MDS. (See SAS CONTROL MODULE CONFIGURATION (USING AS-BUILT DATA) [TWO-STEP DEPLOYMENT CONTROL SYSTEM].) • Clear the DTC for the SAS control module using the M-MDS. (See CLEARING DTC [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)].) • Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)].) • Is the same Pending DTC present?	Yes	Go to the next step.
No	DTC troubleshooting completed.
2	INSPECT SEAT CUSHION • Inspect the seat cushion. • Is the seat cushion damp?	Yes	Dry the seat cushion. Perform the DTC inspection again. If the same DTC is displayed, go to the next step.
No	Go to the next step.
3	INSPECT FRONT SEAT WARMER • Inspect the front seat warmer. (See FRONT SEAT WARMER CONTROL UNIT INSPECTION.) • Is the front seat warmer normal?	Yes	Go to the next step.
No	Replace the front seat warmer. • After replacement, perform occupant classification sensor calibration and reperform the DTC inspection. If the DTC is displayed, go the next step. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
4	INSPECT POWER SEAT • Inspect the power seat. (See POWER SEAT SWITCH INSPECTION.) (See LIFT MOTOR INSPECTION.) (See SLIDE MOTOR INSPECTION.) (See RECLINER MOTOR INSPECTION.) • Is the power seat normal?	Yes	Go to the next step.
No	Replace the malfunctioning parts. • After replacement of seat cushion trim, perform occupant classification sensor calibration and reperform the DTC inspection. If the DTC is displayed, go the next step. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
5	INSPECT PASSENGER-SIDE FRONT SEAT • Switch the ignition off. • Disconnect the negative battery terminal and wait for 1 min or more. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Remove the passenger-side seat and visually inspect for the following: ― Seat under-bracket deformation ― Seat frame deformation ― Foreign objects stuck in seat • Are any of the parts deformed or are any foreign objects stuck in the seat?	Yes	Replace the front seat warmer. (See FRONT SEAT REMOVAL/INSTALLATION.) • After replacement, perform occupant classification sensor calibration and reperform the DTC inspection. If the DTC is displayed, go the next step. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
No	Go to the next step.
6	INSPECT FLOOR • Visually inspect the installation parts of the front passenger-side seat for the following: ― Abnormal floor deformation ― Installation hole of front passenger-side seat is improperly positioned • Is the floor normal?	Yes	Go to the next step.
No	Repair floor deformation. • After repair, perform occupant classification sensor calibration and reperform the DTC inspection. If the DTC is displayed even though the floor has been repaired, go the next step. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
7	INSPECT OCCUPANT CLASSIFICATION SENSOR • Replace the occupant classification sensor. • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.) • Switch the ignition ON (engine off or on). • After replacement, perform occupant classification sensor calibration. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].) • Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)]) • Is the same Pending DTC present?	Yes	Replace the occupant classification sensor. (See FRONT SEAT REMOVAL/INSTALLATION.) • After replacement, perform occupant classification sensor calibration and reperform the DTC inspection. If the DTC is displayed even though the occupant classification sensor has been replaced, replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
No	DTC troubleshooting completed.

Step

Inspection

Action

PERFORM SAS CONTROL MODULE CONFIGURATION (AS-BUILT DATA USE)

• Perform the SAS control module configuration using the M-MDS. (See SAS CONTROL MODULE CONFIGURATION (USING AS-BUILT DATA) [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

• Clear the DTC for the SAS control module using the M-MDS. (See CLEARING DTC [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)].)

• Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)].)

• Is the same Pending DTC present?

Yes

Go to the next step.

DTC troubleshooting completed.

INSPECT SEAT CUSHION

• Inspect the seat cushion.

• Is the seat cushion damp?

Yes

Dry the seat cushion.

Perform the DTC inspection again. If the same DTC is displayed, go to the next step.

Go to the next step.

INSPECT FRONT SEAT WARMER

• Inspect the front seat warmer. (See FRONT SEAT WARMER CONTROL UNIT INSPECTION.)

• Is the front seat warmer normal?

Yes

Go to the next step.

Replace the front seat warmer.

• After replacement, perform occupant classification sensor calibration and reperform the DTC inspection. If the DTC is displayed, go the next step. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

INSPECT POWER SEAT

• Inspect the power seat.

(See POWER SEAT SWITCH INSPECTION.)

(See LIFT MOTOR INSPECTION.)

(See SLIDE MOTOR INSPECTION.)

(See RECLINER MOTOR INSPECTION.)

• Is the power seat normal?

Yes

Go to the next step.

Replace the malfunctioning parts.

• After replacement of seat cushion trim, perform occupant classification sensor calibration and reperform the DTC inspection. If the DTC is displayed, go the next step. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

INSPECT PASSENGER-SIDE FRONT SEAT

• Switch the ignition off.

• Disconnect the negative battery terminal and wait for 1 min or more. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Remove the passenger-side seat and visually inspect for the following:

― Seat under-bracket deformation

― Seat frame deformation

― Foreign objects stuck in seat

• Are any of the parts deformed or are any foreign objects stuck in the seat?

Yes

Replace the front seat warmer. (See FRONT SEAT REMOVAL/INSTALLATION.)

Go to the next step.

INSPECT FLOOR

• Visually inspect the installation parts of the front passenger-side seat for the following:

― Abnormal floor deformation

― Installation hole of front passenger-side seat is improperly positioned

• Is the floor normal?

Yes

Go to the next step.

Repair floor deformation.

• After repair, perform occupant classification sensor calibration and reperform the DTC inspection. If the DTC is displayed even though the floor has been repaired, go the next step. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

INSPECT OCCUPANT CLASSIFICATION SENSOR

• Replace the occupant classification sensor.

• Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

• Switch the ignition ON (engine off or on).

• After replacement, perform occupant classification sensor calibration. (See OCCUPANT CLASSIFICATION SENSOR CALIBRATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

• Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)])

• Is the same Pending DTC present?

Yes

Replace the occupant classification sensor. (See FRONT SEAT REMOVAL/INSTALLATION.)

• After replacement, perform occupant classification sensor calibration and reperform the DTC inspection. If the DTC is displayed even though the occupant classification sensor has been replaced, replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)

DTC troubleshooting completed.