Diagnostic Procedure

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

STEP	INSPECTION		ACTION
1	INSPECT SEAT WEIGHT SENSOR Properly install the passenger-side front seat Inspect the seat weight sensor (See SEAT WEIGHT SENSOR INSPECTION .) Is the seat weight sensor normal?	Yes	Replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION .)
1		No	Go to the next step
2	INSPECT PASSENGER-SIDE FRONT SEAT Switch the ignition to off. Disconnect the negative battery cable and wait for 1 min or more Remove the passenger-side seat and visually inspect for the following Seat under-bracket deformation Seat frame deformation Seat weight sensor deformation Foreign objects stuck in seat Are any of the parts deformed or are any foreign objects stuck in the seat?	Yes	Replace any deformed parts or remove any foreign objects. After replacement, perform seat weight sensor calibration and reperform the DTC inspection. If the DTC is displayed, go the next step (See SEAT WEIGHT SENSOR CALIBRATION .)
2		No	Go to the next step
3	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.
3		No	Repair floor deformation. After repair, perform seat weight sensor calibration and reperform the DTC inspection. If the DTC is displayed even though the floor has been repaired, go the next step. (See SEAT WEIGHT SENSOR CALIBRATION .)
4	INSPECT SEAT WEIGHT SENSOR CONTROL MODULE Replace the seat weight sensor. Connect the negative battery cable Switch the ignition to ON. After replacement, perform seat weight sensor calibration. (See SEAT WEIGHT SENSOR CALIBRATION .) Reperform the DTC inspection Is DTC B00A0:28 indicated?	Yes	Replace the seat weight sensor control module (See SEAT WEIGHT SENSOR CONTROL MODULE REMOVAL/INSTALLATION .) After replacement, perform seat weight sensor calibration and reperform the DTC inspection. If the DTC is displayed even though the seat weight sensor control module has been replaced, replace the SAS control module (See SAS CONTROL MODULE REMOVAL/INSTALLATION .)
4		No	DTC troubleshooting completed.