Toyota Yaris: SRS Air Bags / Constant Monitoring

Toyota Yaris XP210 (2020-2025) Owner's Manual / Essential Safety Equipment / SRS Air Bags / Constant Monitoring

The following components of the air bag systems are monitored by a diagnostic system:

Crash sensors, and diagnostic module (SAS unit)
Front air bag sensors
Air bag modules
Side crash sensors
Air bag/Front seat belt pretensioner system warning light
Front seat belt pretensioners
Related wiring
Front passenger air bag deactivation indicator light
Front passenger occupant classification sensor
Front passenger occupant classification 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.

Front Passenger Occupant Classification Sensor

Your vehicle is equipped with a front passenger occupant classification sensor as a part of the supplemental restraint system. This sensor is equipped in the front passenger’s seat cushion...

Before Driving

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Components

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Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Central Gateway ECU System Internal Failure (B102004)

DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from B102004 Central Gateway ECU System Internal Failure A malfunction in the non-volatile storage of the central gateway ECU (network gateway ECU) is detected...

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Front Seat Belt Pretensioners

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.