LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2006 >> GX 470 >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Navigation) >> Navigation System >> Route cannot be Calculated
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Route cannot be Calculated

WARNING: This page is about a different car, the 2006 Lexus GS 430 and 2006 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MAP DISC 
    1. Check that the map disc is not deformed or cracked.

      OK : No deformations or cracks on map disc. 

    NG : REPLACE MAP DISC 

    Fig 1: Ensure Map Disc Is Not Cracked Or Deformed
    G04115819Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  2. SET DESTINATION 
    1. Set another destination and check if the system can calculate the route correctly.

      OK : Route can be correctly calculated. 

    NG : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

    OK : NORMAL OPERATION