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Home >> Toyota >> 2020 >> 86 Base, Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Heated Glass/Defoggers >> Window Defogger System - Diagnostics & Symptom Tests >> Window Defogger System >> System Description [06/2016 - 03/2017] >> System Description [06/2016 - 03/2017]
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System Description [06/2016 - 03/2017]

  1. GENERAL 
    1. 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.
  2. FUNCTION OF MAIN COMPONENTS 
    Component Outline
    RR DEF relay Receives rear window defogger activation request signals from main body ECU (network gateway ECU) and supplies power to rear window defogger
    Rear window defogger Receives power from RR DEF relay and heats defogger wire
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