No. 2 Air Bag System Warning Light Illuminates Constantly: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

2	Air bag system warning light illuminates constantly
DETECTION CONDITION	Air bag system warning light is illuminated constantly and remains illuminated after 6 s have elapsed.
POSSIBLE CAUSE	Weak battery SAS control module malfunction SAS control module connectors are poorly connected Instrument cluster malfunction Instrument cluster connector is poorly connected Open or short to power supply circuit in wiring harness between instrument cluster and SAS control module