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Home >> Toyota >> 2015 >> Corolla S, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Dynamic Radar Cruise Control System - Diagnostics - Introduction (Model Code: ZRE172)) >> Dynamic Radar Cruise Control System >> Fail-Safe Chart [08/2016 - ] >> Fail-Safe Chart [08/2016 - ]
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Fail-Safe Chart [08/2016 - ]

WARNING: This page is about a different car, the 2019 Toyota Corolla, 2018 Toyota Corolla, and 2017 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. Automatic Cancel Control 

    HINT: 

    If any of the following auto cancel conditions are detected while the dynamic radar cruise control system is controlling vehicle speed, the system clears the stored vehicle speed and cancels control of vehicle speed by the dynamic radar cruise control system.

    CONSTANT SPEED CONTROL MODE:

    Auto Cancel Condition Warning Fail-safe Deactivation Condition
    Multi-information Display Master Warning Light Warning Buzzer
    Open or short in stop light switch circuit Cruise Control Malfunction Visit Your Dealer Illuminates Sounds Dynamic radar cruise control system is turned off and back on again using the cruise control main switch (ON/OFF button).
    • Problem with stop light switch input circuit
    • Problem with cruise control main switch cancel circuit
    • Malfunction in the vehicle stability control system
    • Communication stop between skid control ECU (brake actuator assembly) and ECM
    Cruise Control Malfunction Visit Your Dealer Illuminates Sounds Ignition switch is turned off and back to ON again.
    If the following condition occurs, the ECM cancels control of vehicle speed by the dynamic radar cruise control system (stored vehicle speed is maintained):
    • Vehicle speed is less than approximately 40 km/h (25 mph) while driving with the dynamic radar cruise control system controlling vehicle speed
    - Does not illuminate - Cruise control main switch is pushed to +RES
    Malfunction in SFI system - Does not illuminate - Dynamic radar cruise control system is turned off and back on again using the cruise control main switch (ON/OFF button).
    Vehicle speed is less than stored vehicle speed by approximately 16 km/h (10 mph) or more - Does not illuminate - Cruise control main switch is pushed to -SET
    • Vehicle stability control system operates while driving with dynamic radar cruise control system controlling vehicle speed
    • TRC system operates for a certain period of time while driving with dynamic radar cruise control system controlling vehicle speed.
    • TRC is turned off
    • VSC is turned off
    • Drive start control is performed
    - Does not illuminate - Cruise control main switch is pushed to +RES
    VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE:

    Auto Cancel Condition Warning Fail-safe Deactivation Condition
    Multi-information Display Master Warning Light Warning Buzzer
    Open or short in stop light switch circuit Cruise Control Malfunction Visit Your Dealer Illuminates Sounds Dynamic radar cruise control system is turned off and back on again using the cruise control main switch (ON/OFF button).
    Malfunction in SFI system - Does not illuminate - Dynamic radar cruise control system is turned off and back on again using the cruise control main switch (ON/OFF button).
    If either of the following conditions occurs, the ECM cancels control of vehicle speed by the dynamic radar cruise control system (stored vehicle speed is maintained):
    • Vehicle speed is less than approximately 40 km/h (25 mph) while driving with the dynamic radar cruise control system controlling vehicle speed
    - Does not illuminate Sounds Cruise control main switch is pushed to +RES
    • Malfunction in the millimeter wave radar sensor assembly
    • Beam axis of millimeter wave radar sensor assembly misaligned
    • Problem with stop light switch input circuit
    • Problem with cruise control main switch cancel circuit
    Cruise Control Malfunction Visit Your Dealer Illuminates Sounds Ignition switch is turned off and back to ON again.
    If the following condition occurs, the ECM cancels control of vehicle speed by the dynamic radar cruise control system (stored vehicle speed is maintained):
    • Millimeter wave radar sensor assembly becomes dirty
    Radar Cruise Control Unavailable Clean Sensor Illuminates Sounds The condition returns to normal (the resume function can be operated after fail-safe is deactivated).
    If any of the conditions listed below occurs, the ECM cancels control of vehicle speed by the dynamic radar cruise control system (stored vehicle speed is maintained):
    • Millimeter wave radar sensor assembly sensitivity reduced because of bad weather such as rain, fog, snow, or sandstorm
    • Brake control by the dynamic radar cruise control system is temporarily unavailable
    • The beam axis of the millimeter wave radar sensor assembly is being aligned
    • The forward recognition camera is temporarily unavailable
    • A system check is being performed after the engine has started
    Radar Cruise Control Unavailable Illuminates Sounds The conditions return to normal (the resume function can be operated after fail-safe is deactivated).
    • Vehicle stability control system operates while driving with cruise control system controlling vehicle speed
    • TRC system operates for a certain period of time while driving with cruise control system controlling vehicle speed.
    • TRC is turned off
    • VSC is turned off
    • Drive start control is performed
    - Does not illuminate - Cruise control main switch is pushed to +RES