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Home >> Lexus >> 2004 >> LX 470 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> LEXUS Navigation System - Diagnosis >> Circuit Inspection >> Navigation screen is not stabilized (Synchronous error). >> Inspection Procedure
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Inspection Procedure

  1. Check the navigation ECU power source circuit (see  POWER SOURCE CIRCUIT (NAVIGATION ECU)  ). 
    1. NG: Replace or repair wire harness or connector. 
    2. OK: Go to next step 
  2. Check the display signal circuit (see  DISPLAY SIGNAL CIRCUIT  ). 
    1. NG: Replace or repair wire harness or connector. 
    2. OK: Replace the multi-display. 
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