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Home >> Toyota >> 2008 >> Sequoia Platinum, 4WD >> Repair and Diagnosis >> Body & Frame >> Windows >> Window/Glass >> Window Defogger System >> System Description

System Description

  1. GENERAL 

    The defogger system's thin heater wires are attached to the rear window and defog the rear window surface quickly. The indicator light illuminates while the system is operating. The system automatically turns off after approximately 15 minutes.

  2. FUNCTION OF MAIN COMPONENT 
    FUNCTION OF MAIN COMPONENT

    Component Outline
    Defogger switch Located on integration control and panel, detects defogger switch operation and transmits signals to air conditioning amplifier through LIN communication line
    Defogger relay Receives rear window defogger activation request signals from air conditioning amplifier and supplies power to rear window defogger
    Rear window defogger Receives power from defogger relay and heats defogger wire
  3. DESCRIPTION 
    REAR WINDOW DEFOGGER DESCRIPTION CHART

    Function Outline
    Rear window defogger
    • Defogger relay receives rear window defogger activation request signals from air conditioning amplifier and defogs rear window surface
    • Receives power from defogger relay and heats defogger wire