Menu +
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

SAS CONTROL MODULE [TWO-STEP DEPLOYMENT CONTROL SYSTEM – US/CANADA SPEC.]

SAS CONTROL MODULE [TWO-STEP DEPLOYMENT CONTROL SYSTEM – US/CANADA SPEC.]

SM2334170

id0810b4500200



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
Roll rate sensor
• Vehicle roll 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)
• Telematics communication unit
Secondary collision reduction signal
(See SECONDARY COLLISION REDUCTION.)
(See POWER DOOR AND FUEL-FILLER LID LOCK SYSTEM [(US)].)
(See TELEMATICS COMMUNICATION UNIT [(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))].)


Driver’s seat position detection function

• The SAS control module detects the slide position (most forward position or position other than most forward position) of the driver’s seat based on the signal from the seat position sensor. For details on the driver’s seat position detection function, refer to the [SEAT TRACK POSITION SENSOR]. (See SEAT TRACK POSITION SENSOR [TWO-STEP DEPLOYMENT CONTROL SYSTEM – US/CANADA SPEC.].)



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
― Roll rate sensor
am3zzn00007522



Operation

• For the SAS control module operation, refer to the [AIR BAG SYSTEM [(TWO-STEP DEPLOYMENT CONTROL SYSTEM – US/CANADA SPEC.)]]. (See AIR BAG SYSTEM [TWO-STEP DEPLOYMENT CONTROL SYSTEM – US/CANADA SPEC.].)