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Wiper And Washer System

WARNING: This page is about a different car, the 2003 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
WIPER AND WASHER SYSTEM TROUBLE SYMPTOMS REFERENCE

Symptom Suspect Area See Section
Wiper and washers do not operate.
  1. WIPER Fuse (Instrument Panel J/B)
  2. Wiper Switch
  3. Wiper Motor
  4. Body ECU
  5. Wire Harness
  1. -
  2. TROUBLE SHOOTING
  3. TROUBLE SHOOTING
  4. HOW TO PROCEED WITH TROUBLESHOOTING
  5. -
Wipers do not operate in LO, HI or MIST.
  1. Wiper Switch
  2. Wiper Motor
  3. Wire Harness
  1. TROUBLE SHOOTING
  2. TROUBLE SHOOTING
  3. -
Wipers do not operate in INT.
  1. Wiper Switch
  2. Wiper Motor
  3. Body ECU
  4. Wire Harness
  1. TROUBLE SHOOTING
  2. TROUBLE SHOOTING
  3. HOW TO PROCEED WITH TROUBLESHOOTING
  4. -
Washer motor does not operate.
  1. Washer Switch
  2. Washer Motor
  3. Wire Harness
  1. TROUBLE SHOOTING
  2. TROUBLE SHOOTING
  3. -
Wipers do not operate when washer switch in ON.
  1. Washer Motor
  2. Body ECU
  3. Wire Harness
  1. TROUBLE SHOOTING
  2. HOW TO PROCEED WITH TROUBLESHOOTING
  3. -
Washer fluid does not operate.
  1. Washer Hose and Nozzle
  1. -
  • When wiper switch is at HI position, the wiper blade is in contact with the body.
  • When the wiper switch is OFF, the wiper blade does not retract or the retract position wrong.
  1. Wiper Motor (1)
  2. Wire harness (1)
  3. Body ECU
  1. TROUBLE SHOOTING
  2. HOW TO PROCEED WITH TROUBLESHOOTING
  3. -
(1) : Inspect wiper arm and blade set position.
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