Toyota Yaris: SRS Air Bags / Constant Monitoring

Toyota Yaris XP210 (2020-2026) 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 (2020-2026) Reapir and Service Manual: Instrument Panel Illumination does not Turn On

DESCRIPTION The power distribution box assembly controls the instrument panel illuminations. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. Before replacing the main body ECU (multiplex network body ECU), refer to Registration...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Lost Communication with Alternator Missing Message (P161A87)

DESCRIPTION The ECM communicates with the generator assembly via LIN communication. If a LIN communication error is detected, the ECM stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note P161A87 Lost Communication with Alternator Missing Message Generator assembly or ECM communication stops for approximately 17 minutes or more with the ignition switch ON (1 trip detection logic) Wire harness or connector Generator assembly ECM Comes on SAE Code: P161A WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following inspection procedure...