2010 MAZDA MODEL 3 5-DOOR diagnostic

Black plate (62,1)
Supplemental Restraint System Components
Driver/Front passenger inflators and air bags
Crash sensor, and diagnostic module (SAS unit)
Front seat belt pretensioner and load limiting systems (page 2-22)
Front air bag sensor
Side crash sensorsí
Air bag/front seat belt pretensioner system warning light (page 2-51)
Side and curtain inflators and air bagsí
Front passenger air bag deactivation indicator light (page 2-56)
Front passenger seat weight sensors (page 2-56)
Front passenger seat weight sensor control module
Driver and front passenger seat belt buckle switches (page 2-60)
Driver seat slide position sensor (page 2-56)
NOTE
-are equipped only on models with the driver and front passenger occupant classification
system.
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Essential Safety Equipment
íSome models.
SRS Air Bags
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Form No.8BG3-EA-09J

Black plate (70,1)
Driver and Front Passenger Occupant Classification Systemí
First, please read“Supplemental Restraint System (SRS) Precautions ”(page 2-43)
carefully.
q Driver Seat Slide Position Sensor
Your vehicle is equipped with a driver seat slide position sensor as a part of the
supplemental restraint system. The sensor is located under the driver seat. The sensor
determines whether the driver seat is fore or aft of a reference position and sends the seat
position to the diagnostic module (SAS unit). The SAS unit is designed to control the
deployment of the driver air bag depending on how close the driver seat is to the steering
wheel.
The air bag/front seat belt pretensioner system warning light flashes if the sensor has a
possible malfunction (page 2-51).
qFront Passenger Seat Weight Sensors
Your vehicle is equipped with a front passenger seat weight sensors as a part of the
supplemental restraint system. These sensors are located under both of the front passenger
seat rails. These sensors determine the total seated weight on the front passenger seat. The
SAS unit is designed to prevent the front passenger front and side air bags and seat belt
pretensioner system from deploying if the total seated weight is less than approximately 30
kg (66 lbs).
To reduce the chance of injuries caused by deployment of the front passenger air bag, the
system deactivates the front passenger front and side air bags and also the seat belt
pretensioner system when:
lThere is no passenger in the front passenger seat. (The front passenger air bag
deactivation indicator light does not illuminate.)
lThe total seated weight on the front passenger seat is less than approximately 30 kg (66
lbs). (The front passenger air bag deactivation indicator light illuminates.)
This system shuts off the front passenger front and side air bags and seat belt pretensioner
system, so make sure the front passenger air bag deactivation indicator light illuminates
according to the following table.
The air bag/front seat belt pretensioner system warning light flashes and the front
passenger air bag deactivation indicator light illuminates if the sensors have a possible
malfunction. If this happens, the front passenger front and side air bags and seat belt
pretensioner system will not deploy.
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Essential Safety Equipment
íSome models.
SRS Air Bags
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Form No.8BG3-EA-09J

Black plate (75,1)
Monitoring and Maintenance
qConstant Monitoring
The following components of the air bag systems are monitored by a diagnostic system:
lCrash sensors, and diagnostic module (SAS unit)lFront air bag sensorlAir bag moduleslSide crash sensorsí
lAir bag/Front seat belt pretensioner system warning lightlFront seat belt pretensionerslRelated wiring
(With Driver and Front Passenger Occupant Classification System)
lFront passenger air bag deactivation indicator lightlDriver seat slide position sensorlFront passenger seat weight sensorslFront passenger seat weight sensor control module
The diagnostic module continuously monitors the system's readiness. This begins when the
ignition is switched ON and continues while the vehicle is being driven.
q Maintenance
The air bag systems do not require regular maintenance. But if any of the following occurs,
take your vehicle to an Authorized Mazda Dealer as soon as possible:
lThe air bag system warning light flashes.lThe air bag system warning light remains illuminated.lThe air bag system warning light does not illuminate when the ignition is switched ON.lThe air bag system warning beep sound is heard.lThe air bags have deployed.l(With Driver and Front Passenger Occupant Classification System)
Front passenger air bag deactivation indicator light does not illuminate when the ignition
is switched ON or does not illuminate as indicated in the chart. For more details about
this indicator light and this chart, refer to “Front passenger seat weight sensors ”(page
2-56).
Essential Safety Equipment
SRS Air Bags
2-61íSome models.
Mazda3_8BG3-EA-09J_Edition2 Page75
Tuesday, December 8 2009 1:28 PM
Form No.8BG3-EA-09J