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Home >> Lexus >> 2004 >> ES 330 >> Repair and Diagnosis >> External Pages >> Different car >> Section 359 (Windshield/WINDOWGLASS/Mirror) >> Window Defogger System >> Problem Symptoms Table
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Problem Symptoms Table

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOMS TABLE - WINDOW DEFOGGER SYSTEM

Symptom Suspected Area
w/Deicer:
Front window deicer does not operate. (indicator light ON)
  1. FR DEF fuse
  2. Front window deicer relay
  3. Front window deicer wire
  4. wire harness
w/Deicer:
Front window deicer does not operate. (indicator light OFF)
  1. FR DEF fuse
  2. Front window deicer relay
  3. Front window deicer wire
  4. Hazard warning signal switch assy (Defogger switch)
  5. Wire harness
Rear window defogger does not operate (Indicator light ON)
  1. HTR fuse
  2. Rear window defogger relay
  3. Rear window defogger wire
  4. wire harness
Rear window defogger does not operate (Indicator light OFF)
  1. HTR fuse
  2. Rear window defogger relay
  3. Hazard warning signal switch assy (Defogger switch)
  4. Rear window defogger wire
  5. Wire harness
w/Mirror Heater:
Mirror heater does not operate (Indicator light ON)
  1. MIR HTR fuse
  2. Outer rear view mirror assy
  3. Wire harness
w/Mirror Heater:
Mirror heater does not operate (Indicator light OFF)
  1. MIR HTR fuse
  2. Hazard warning signal switch assy (Defogger switch)
  3. Outer rear view mirror assy
  4. Wire harness
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