Toyota Yaris: Front Radar Sensor System / Problem Symptoms Table

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Front Radar Sensor System / Problem Symptoms Table



  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Front Radar Sensor System


Suspected Area


"Pre-Collision System Radar Sensor Blocked Unavailable Clean Radar Sensor" is displayed

Vehicle Control History


    UTILITY Front Beam Axis Adjustment HINT: Front Beam Axis Adjustment is used to calibrate the beam axis of millimeter wave radar sensor assembly. (a) Perform Front Beam Axis Adjustment according to the display on the GTS...

    Terminals Of Ecu

    TERMINALS OF ECU NOTICE: Turning the ignition switch to ON with connectors disconnected may cause DTCs to be stored. Make sure to clear the DTCs after inspection has been performed...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Turbocharger Oil Leak and White Smoke

    DESCRIPTION Type of Oil Leak Outline Major Trouble Area Internal oil leak (white smoke) Oil leak from the bearing housing into the compressor housing (intake side) or turbine housing (exhaust side) through the seal ring. Internal oil leaks cannot be seen from outside the turbocharger...

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Power Steering Torque Sensor "B" Supply Voltage Circuit Voltage Above Threshold (C151B17)

    DESCRIPTION The power steering ECU assembly supplies a voltage of 5 V to the torque sensor (electric power steering column sub-assembly) and monitors the voltage value of the Hall IC inside the torque sensor (electric power steering column sub-assembly) which changes in response to changes in the magnetic flux density (steering torque) detected by the Hall IC, and calculates the assist torque...


    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.

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