FixVault

Problem Symptoms Table

Window defogger system 

PROBLEM SYMPTOMS TABLE

Symptom Suspected Area Refer to
Rear window defogger switch is turned ON but does not operate (indicator ON) 1. DEF H-fuse WINDOW DEFOGGER SYSTEM 
2. Rear window defogger wire WINDOW DEFOGGER WIRE 
3. Instrument panel junction block (Defogger relay) DEFOGGER RELAY 
4. Wire harness -
Rear window defogger switch is turned ON but does not operate (indicator OFF) 1. DEF H-fuse WINDOW DEFOGGER SYSTEM 
2. Rear window defogger wire DEFOGGER RELAY 
3. Wire harness -
4. A/C Amplifier (Automatic A/C) TERMINALS OF ECU

TERMINALS OF ECU

5. Instrument panel junction block (Defogger relay) DEFOGGER RELAY 
6. Integration Control and Panel (Manual A/C) -
Mirror heater does not operate (Indicator ON) 1. DEF H-fuse WINDOW DEFOGGER SYSTEM 
2. MIR HTR fuse WINDOW DEFOGGER SYSTEM 
3. Outer rear view mirror assembly INSPECTION
4. Wire harness -
5. Instrument panel junction block (Defogger relay) DEFOGGER RELAY 
Mirror heater does not operate (Indicator OFF) 1. DEF H-fuse WINDOW DEFOGGER SYSTEM 
2. MIR HTR fuse WINDOW DEFOGGER SYSTEM 
3. Outer rear view mirror assembly INSPECTION
4. Wire harness -
5. A/C Amplifier (Automatic A/C) TERMINALS OF ECU

TERMINALS OF ECU

6. Instrument panel junction block (Defogger relay) DEFOGGER RELAY 
7. Integration Control and Panel (Manual A/C) -