LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2006 >> SC 430 >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> LEXUS Navigation System - Diagnostics >> Touch Panel Switch Does Not Function >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. CHECK TOUCH PANEL 
    1. Check for foreign matter on the display.

      OK: The display is clean. 

    1. NG: CLEAN THE DISPLAY AND RECHECK TOUCH PANEL 
    2. OK: Go to next step. 
  2. CHECK TOUCH SWITCH (DISPLAY CHECK MODE) 
    1. Enter the DISPLAY CHECK MODE (TOUCH SWITCH CHECK)  .
    2. Touch the display in the area where the abnormal switch occurs.

      OK: A "+" mark appears at the touched position. 

      Fig 1: Checking Touch Switch (Display Check Mode)
      G02956498Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 
    2. OK: REPLACE MULTI-DISPLAY (See  MULTI-DISPLAY (CENTER DISPLAY)  )