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SAS CONTROL MODULE [STANDARD DEPLOYMENT CONTROL SYSTEM – MEXICO SPEC.]

SAS CONTROL MODULE [STANDARD DEPLOYMENT CONTROL SYSTEM – MEXICO SPEC.]

SM2334159

id0810b3500200



Purpose

• The SAS control module controls the air bag system.



Function


Air bag system initialization diagnostics function

• When the ignition is switched ON, the SAS control module turns on the air bag/seat belt pre-tensioner system warning light in the instrument cluster for approx. 6 s to indicate that the air bag system is performing initialization diagnostics.
• If there is no malfunction with the air bag system, the air bag/seat belt pre-tensioner system warning light turns off.


Backup power supply function

• The condenser in the SAS control module discharges even if the power supply to the SAS control module has been cut off due to a collision, and the backup power supply function operates the air bag system for a specified period of time.


Vehicle travel conditions detection function

• The SAS control module detects the signals from the following integrated sensors.
• The SAS control module outputs the detection signals from the following sensors and outputs them to the DSC HU/CM via a CAN signal.

Sensor

Signal
Low-G sensor
• Vehicle longitudinal acceleration speed signal
• Vehicle lateral acceleration speed signal
Yaw rate sensor
• Vehicle steering angle speed signal


Collision detection signal output function

• The SAS control module sends the following signal to the following units when it determines that it is necessary for the air bag system to operate (deploy).
• When the signal is received, the each unit performs controls to mediate secondary injuries caused by the vehicle collision.

Related unit

Signal

Reference
• DSC HU/CM
• Body control module (BCM)
Secondary collision reduction signal
(See SECONDARY COLLISION REDUCTION.)
(See POWER DOOR AND FUEL-FILLER LID LOCK SYSTEM [(US)].)
• PCM
• Instrument cluster
• Center display
Fuel-cut request signal
(See FUEL INJECTION CONTROL SYSTEM [SKYACTIV-G (WITHOUT CYLINDER DEACTIVATION (US))].)
(See FUEL INJECTION CONTROL SYSTEM [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))].)



Structure/Construction

• The SAS control module is located underneath the rear console.
• The following circuits are integrated with the SAS control module.
― Determination and safing circuit
― Output control circuit
• The following sensors are integrated with SAS control module.
― Crash sensor
― Yaw rate sensor
― Low-G sensor
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Operation

• For the SAS control module operation, refer to the [AIR BAG SYSTEM [STANDARD DEPLOYMENT CONTROL SYSTEM – MEXICO SPEC.]]. (See AIR BAG SYSTEM [STANDARD DEPLOYMENT CONTROL SYSTEM – MEXICO SPEC.].)