Diagnosis System

CHECK DIAGNOSIS
1. Turn the ignition switch ON.
2. Operate the driver side switch of the master switch.
3. Check the blinking pattern of the AUTO light as shown in the illustration.
  
  Fig 1: Identifying Driver Side Master Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: Identifying Blinking Pattern Of AUTO Light
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. If pattern (A) is displayed, reset power window regulator motor.
  2. If pattern (B) or (C) displayed, check the wire harness.
  3. If the normal pattern is displayed, replace the multiplex network master switch.