Mazda 2007 CX-9, Service Highlights

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AIR BAG SYSTEM
08-10–6
SAS CONTROL MODULE CONSTRUCTION/OPERATION
id081000101100
Front Air Bag System (Two-Step Deployment Control)
1. During a frontal or frontal offset collision, the crash sensors in the crash zone sensor and the SAS control
module detect the impact.
2. The level of impact detected by the crash sensors in the crash zone sensor is converted to an electric signal
and sent to the SAS control module.
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 an inflator No.1 or inflator No.2 ignition circuit, and sends the deployment signal to the air bag
modules.
6. The SAS control module completes an ignition circuit for the pre-tensioner seat belts that is synchronized to the
deployment of the driver and passenger-side air bag modules, and an operation (deployment) signal is sent to
the pre-tensioner seat belts.
No. Level of collision force
Air bag module
deployment force
Inflator deployment pattern
1 Large Large Inflator No.1 and inflator No.2 deploy.
2 Small Small Inflator No.1 deploys.
SAS CONTROL MODULE
CRASH ZONE SENSOR
CRASH
SENSOR
CRASH
SENSOR
OUTPUT COTROL CIRCUIT
FRONT AIR BAG MODULE
(DRIVER OR PASSENGER-
SIDE AIR BAG MODULE)
INFLATOR NO.1 INFLATOR NO.2
DRIVER OR
PASSENGER-SIDE
PRE-TENSIONER
SEAT BELT
JUDGEMENT AND
SAFING CIRCUIT
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