Air Bag Diagnosis Sensor Unit Functions

Air bag diagnosis sensor unit has the following functions.

• Detects a collision and supplies the energy for deploying air bag and seat belt pre-tensioner.
• Detects and records electrical malfunction in air bag system and seat belt pre-tensioner system, and blinking air bag warning lamp.
• Detects and records the deployment of air bag and seat belt pre-tensioner, and turns ON air bag warning lamp.
• Indicates malfunctioning portion via the number of blinks from the air bag warning lamp in the diagnosis mode.
• Indicates the malfunction record via CONSULT.
• Suppresses the deployment of passenger air bag when passenger seat is empty or occupied by child or child-seat.
• When passenger seat is occupied by child or child seat, turns ON passenger air bag OFF indicator.
• When judges that passenger seat is occupied by a adult or a child and passenger seat belt is not fasten, turns ON seat belt warning lamp. Further information for the seat belt warning system, refer to "PRE-CRASH SEAT BELT SYSTEM: SYSTEM DESCRIPTION ".