•  The air bag system has an on-board diagnostic function to facilitate the system diagnosis.

•  The on-board diagnostic function has a function for detecting malfunctions in the air bag system-related parts, a memory function for storing detected malfunctions, and a PID/data monitor function for reading out specific input/output signals.

•  Using the mazda modular diagnostic system (M-MDS), DTCs can be read out and deleted, and the PID/data monitoring function can be activated.

•  The system has a fail-safe function to prevent the accidental activation of the air bags in case of an air bag system malfunction.