FixVault

Wiper System:

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
WIPER SYSTEM

Symptom Suspect Area See Section
Wiper system does not operate.
  1. Wiper and washer switch circuit
  2. Wiper switch (HI) circuit
  3. Wiper motor circuit
  4. Combination switch
  5. Passenger side J/B control ECU
  1. WIPER AND WASHER SWITCH CIRCUIT 
  2. WIPER SWITCH (HI SPEED) CIRCUIT
  3. WIPER MOTOR CIRCUIT
  4. WIPER MOTOR CIRCUIT
  5. HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE