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Home >> Toyota >> 2004 >> Tundra Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 484 (Navigation System - Diagnostics) >> Navigation System >> Circuit Inspection >> Route cannot be calculated >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check map disc. 

    CHECK: 

    Check that the map disc is not deformed or cracked.

    OK: 

    No deformations or cracks appear on the map disc. 

    Fig 1: Checking Map Disc
    G02644227Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG : Replace map disc. 
    2. OK : Go to next Step. 
  2. Set destination. 

    CHECK: 

    Set another destination and check if the system can calculate the route correctly.

    OK: 

    Route can be correctly calculated. 

    1. OK : Normal operation. 
    2. NG : Proceed to next circuit inspection shown in  PROBLEM SYMPTOMS TABLE   .