Toyota Yaris: Dynamic Radar Cruise Control System / Diagnosis System

Toyota Yaris XP210 (2020-2023) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Diagnosis System



(a) The diagnosis function turns off the cruise control indicator and displays a warning message when a malfunction is detected. When a malfunction is detected in the dynamic radar cruise control system, DTCs are stored in the ECM or millimeter wave radar sensor assembly.


Cruise Control Indicator

(Constant Speed Control Mode)


Cruise Control Indicator

(Vehicle-to-vehicle Distance Control Mode)


As data stored in the ECU will be cleared, do not remove any fuses or disconnect the cable from the negative (-) auxiliary battery terminal before the inspection is complete.


When the system returns to normal, the warning message "Cruise Control Malfunction Visit Your Dealer" displayed on the multi-information display will be cleared.

    Terminals Of Ecu

    TERMINALS OF ECU CHECK ECM HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals are also indicated...

    Dtc Check / Clear

    DTC CHECK / CLEAR CHECK DTC (a) Check for DTCs (Test Failed / Pending / Confirmed). Powertrain > Radar Cruise1 > Trouble Codes Powertrain > Radar Cruise2 > Trouble Codes Radar Cruise1: Stored in the ECM Radar Cruise2: Stored in millimeter wave radar sensor assembly GTS Display Description Test Failed Represent malfunctions that were detected during the current trip...

    Other information:

    Toyota Yaris XP210 (2020-2023) Reapir and Service Manual: Diagnostic Trouble Code Chart


    Toyota Yaris XP210 (2020-2023) Owner's Manual: Liftgate/Trunk Lid

    WARNING Never allow a person to ride in the luggage compartment/trunk Allowing a person to ride in the luggage compartment/trunk is dangerous. The person in the luggage compartment/trunk could be seriously injured or killed during sudden braking or a collision...


    Turning the Engine Off

    Stop the vehicle completely. Manual transaxle: Shift into neutral and set the parking brake.

    Automatic transaxle: Shift the selector lever to the P position and set the parking brake.

    Press the push button start to turn off the engine. The ignition position is off.

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