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Home >> Lexus >> 2005 >> ES 330 >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Navigation System - Diagnosis) >> Touch Switch Does Not Function (Navigation Screen Only) >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. DISPLAY CHECK MODE (TOUCH SWITCH CHECK) 
    1. Perform display touch switch check of display check mode.
      1. Start up the diagnosis system and perform display touch switch check of display check mode.

        Standard: Touch switch is normal 

    1. NG: REPLACE RADIO RECEIVER ASSY (See  REPLACEMENT  ) 
    2. OK: Go to next step. 
  2. CHECK SWITCH (BEEP SOUND) 
    1. Check the switch (Beep sound).
      1. Press each touch switch on the navigation screen to check that the beep sounds are produced.

        Standard: Beep sound is normal 

    1. NG: REPLACE NAVIGATION ECU ASSY (See  REPLACEMENT  ) 
    2. OK: SYSTEM OK 
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