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Home >> Lexus >> 2004 >> GS 430 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> LEXUS Navigation System >> Circuit Inspection >> Any speaker does not work. >> Inspection Procedure

Inspection Procedure

  1. Is radio operating normally? 
    1. Yes: CD auto changer faulty. 
    2. NO: Go to Next Step 
  2. Is hiss noise produced by non-functioning speaker? 
    1. YES: Radio receiver assembly faulty. Recheck system after repair. 
    2. NO: Go to Next Step 
  3. Does continuity exist in speaker sire harness? 
    1. NO: Speaker wire harness faulty. 
    2. YES: Go to Next Step 
  4. Temporarily install another speaker. Function OK? 
    1. YES: Speaker faulty. 
    2. NO: Go to next step. 

    Radio receiver assembly faulty. Recheck system after repair. 

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