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Problem Symptoms Table

WINDOW DEFOGGER SYSTEM - PROBLEM SYMPTOMS TABLE

Symptom Suspected Area See
Rear window defogger does not operate (Indicator lamp on) 1. DEF fuse (Instrument panel J/B)  
2. GAUGE 2 fuse (Instrument panel J/B)  
3. DEF relay (Instrument panel J/B) INSPECTION 
4. Rear window defogger wire -
5. Wire harness -
6. Body ECU (2AZ-FE) -
7. Body ECU (1MZ-FE) -
Rear window defogger does not operate (Indicator lamp off) 1. HTR fuse (Instrument panel J/B)  
2. Defogger switch (Heater control housing) TERMINALS OF ECU
3. Wire harness -
4. Heater control base TERMINALS OF ECU