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Home >> Toyota >> 2020 >> RAV4 XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 95 (Grille Shutter System (HV) - Diagnostics - Introduction) >> GRILLE SHUTTER SYSTEM (for HV Model) >> System Description [12/2021 - ] >> System Description [12/2021 - ]

System Description [12/2021 - ]

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  1. GRILLE SHUTTER SYSTEM 
    1. General description

      The actuator receives signals from the ECM, hybrid vehicle control ECU assembly via LIN communication. Based on these signals, the actuator operates the radiator shutter assembly.

      If a malfunction occurs in the grille shutter system, a warning will be displayed on the multi-information display and grille shutter system operation will be disabled.

    2. Control List
      Control Description
      Closing Operation Control The grille shutter closes when certain conditions related to the vehicle speed, engine coolant temperature, inverter coolant temperature, ambient temperature and refrigerant pressure are met.
      Opening Operation Control The grille shutter opens when certain conditions related to the vehicle speed, engine coolant temperature, inverter coolant temperature, ambient temperature and refrigerant pressure are met.
      Power Switch Off-linked Opening Operation Control Opens the grille shutter when the power switch is turned off in order to prevent the grille shutter from becoming stuck closed while the vehicle is stopped.
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