Diagnosis System

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DIAGNOSIS
1. Turn the ignition switch ON.
2. Operate the driver side switch of the master switch.
  
  Fig 1: Identifying Driver Side Switch Of Master Switch
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the blinking pattern of the AUTO light as shown in the illustration.
  
  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.