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

HINT: 

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

WINDOW DEFOGGER SYSTEM

Symptom Suspected Area See
Rear window defogger system does not operate Refer to troubleshooting Refer to Rear Window Defogger System does not Operate [06/2016 - 03/2017] 
Rear window defogger does not operate (indicator ON) RR DEF relay -
RR DEF fuse -
Back door glass (defogger wire) -
Harness or connector -
Rear window defogger does not operate (indicator OFF) HEATER fuse -
Heater control sub-assembly (defogger switch) Refer to REMOVAL [06/2016 - 03/2017]
Harness or connector -