Mazda 2006 MX-5 Service Highlights page 374

Side air bag system
1. During a lateral collision to the vehicle, the crash sensors in the side air bag sensor and SAS control module
detect the collision.
2. The level of impact detected by the crash sensor in the side air bag sensor is converted to an electrical signal
and sent to the SAS control module through the signal amplification circuit.
3. Simultaneously, the SAS control module crash sensor converts the level of impact detected to an electrical
signal.
4. The SAS control module processes the calculations for the two electrical signals at the output control circuit
and compares the value to a preset value.
5. The output control circuit determines the level of impact to the vehicle by the value from the crash sensors,
completes a side air bag module ignition circuit, and sends the deployment signal to the air bag modules.
SIDE AIR BAG SENSOR
CRASH
SENSOR
SIGNAL
AMPLIFICATION
CIRCUIT
Seat Position Matching Deployment Control
• The SAS control module controls the air bag deployment operation pattern (deployment only inflator No.1 or
both inflator No.1 and No.2) according to the seat track position of the driver's seat.
• The SAS control module detects the seat track position based on the seat position signal received from the
seat track position sensor.
• When the driver's seat is in a forward position, the SAS control module deploys only inflator No.1 to lessen the
air bag module deployment force.
Seat Position
A
B
08–10–6
AIR BAG SYSTEM
SAS CONTROL MODULE
OUTPUT
CONTROL
CIRCUIT
CRASH
SENSOR
Normal control (only inflator No.1 deploys or both inflator No.1 and No.2 deploy)
Only inflator No.1 deploys
Air bag module deployment control
SEAT TRACK POSITION
SENSOR
A
B
SIDE AIR BAG
MODULE
E5U810ZS5103
REAR
FRONT
E5U810ZS5004