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Home >> Lexus >> 2007 >> RX 400h AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 115 (Navigation System - Diagnostics) >> Voice Guidance Does Not Function >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. SET VOLUME TO MAX IN MENU SCREEN 
    • OK: NORMAL (VOICE NAVIGATION IS NOT AVAILABLE. NO DESTINATION IS SET, OR THE VEHICLE IS RUNNING OFF THE ROUTE.) 
    • NG: GO TO NEXT STEP 
  2. CHECK SPEAKER CIRCUIT 
    1. See SPEAKER CIRCUIT  .
    • NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
    • OK: GO TO NEXT STEP 
  3. CHECK SOUND 
    1. Check if the radio sound can be heard from the driver side door speaker.
    • OK: REPLACE NAVIGATION ECU 
    • NG: REPLACE SPEAKER 
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