Toyota Yaris: How the SRS Air Bags Work / Side Air Bags
The side air bags are mounted in the outboard sides of the front
seatbacks.
When the air bag crash sensors
detect a side impact of greater
than moderate force, the system inflates the side air bag
only on the side in which the
vehicle was hit. The side air
bag inflates quickly to reduce
injury to the driver or front passenger’s chest caused by
directly hitting interior parts
such as a door or window.

For more details about air bag deployment, refer to “SRS Air Bag
Deployment Criteria”.
In addition, the front passenger side air bag is designed to only
deploy when the front passenger occupant classification sensor
detects a passenger sitting on the front passenger’s seat. For
details, refer to the front passenger occupant classification system.
The front passenger air bag is mounted in the front passenger
dashboard.
The inflation mechanism for the
front passenger air bag is the
same as the driver’s air bag, as
mentioned above...
The curtain air bags are mounted in the front and rear window pillars, and
the roof edge along both sides.
When the air bag crash sensors detect a side impact of greater
than moderate force, the curtain air bag inflates quickly and helps to
reduce injury mainly to the rear outboard passenger’s head caused
by directly hitting interior parts such as a door or window...
Other information:
DIAGNOSTIC TROUBLE CODE CHART Diagnostic Trouble Code Chart DTC No. Detection Item Trouble Area Link B102004 Central Gateway ECU System Internal Failure Central gateway ECU (network gateway ECU)
U117087 Lost Communication With Brake System Control Module(ch2) Missing Message
CAN main/branch bus lines or connector
Engine stop and start ECU
Brake actuator assembly
Central gateway ECU (network gateway ECU)
No...
These lights turn on or flash to notify the user of the system operation
status or a system malfunction.
Master
Warning Light
Brake
System Warning Light
ABS
Warning Light
Charging System Warning Light
Engine
Oil Warning Light
Check
Engine Light
High
Engine Coolant Temperature Warning Light
Automatic Transaxle Warning Light
Power
Steering Malfunction Indicator Light
Air
Bag/Front Seat Belt Pretensioner System Warning Light
LED
Headlight Warning Light
Low
Fuel Warning Light
Check
Fuel Cap Warning Light
Seat
Belt Warning Light (Front seat)
Door-Ajar Warning Light
Low
Washer Fluid Level Warning Light
Tire
Pressure Monitoring System Warning Light
KEY
Warning Light
Low
Speed Pre-Collision System Warning Light
* 1: The light turns on when the ignition is switched on for
an operation check,
and turns off a few seconds later or when the engine is started...
Categories
The front seat belt pretensioners are designed to deploy in moderate or
severe frontal, near frontal collisions.
In addition, the pretensioners operate when a side collision or a rollover
accident is detected. The pretensioners operate differently
depending on what types of air bags are equipped. For more details
about the seat belt pretensioner operation, refer to the SRS Air Bag
Deployment Criteria.
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