This TSB applies to 2011 Mazda vehicles with VINs lower than JM1 DE**** ** 120900 (produced before Dec. 01, 2010).
Some vehicle may experience the airbag system warning light illumination with DTC B00A0:81 (invalid signal to SAS control module) stored in the SAS control module. This concern will not inhibit airbag operation. The warning light will turn off when the ignition switch is in the off position. The repair involves replacing the SAS control module, available as P/N DR61057-K30A.
Verify that no DTCs are stored in the SAS control module.