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"No GPS signal" mark is displayed [12/2019 - 10/2022]: Procedure

  1. CHECK CABIN 
    1. Check the cabin for any objects that might interrupt radio reception and devices which use radio waves on the instrument panel. If such an object exists, remove it and check if the GPS mark reappears.

      HINT: 

      The GPS uses extremely faint radio waves originating from satellites. If the signal is interrupted by obstructions or other radio waves, the GPS may not be able to properly receive the signal.

      OK

      The GPS mark appears.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    See step  2

  2. CHECK SURROUNDINGS 
    1. Check if the vehicle is in a location where GPS signal reception is poor. If the vehicle is in such a place, relocate the vehicle and check if the GPS mark reappears.

      HINT: 

      The GPS uses 24 satellites in 6 orbits. At any point in time, 4 satellites should be able to pinpoint your vehicle. However, GPS signals may not reach the vehicle due to influence from the surroundings, vehicle direction and time. For examples, see the following illustration.

      GTY429430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Example *b In a tunnel
      *c In a building *d Under an overpass
      *e In a forest or on tree-lined path *f Between tall buildings
      *g Under a cliff or overhang - -

      OK

      The GPS mark is displayed.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (SYSTEM RETURNED TO NORMAL) 

    Result: 

    NG 

    See step  3

  3. CHECK GPS INFORMATION (OPERATION CHECK) 
    1. Enter the "System Sensors Check" screen. Refer to Check GPS & Vehicle Sensors in Operation Check.

      w/o Navigation System 

      GTY774195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      w/ Navigation System 

      GTY433789Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      w/o Navigation System: Refer to OPERATION CHECK [12/2019 - 10/2022]

      w/ Navigation System (for 8 Inch Display): Refer to OPERATION CHECK [12/2019 - 10/2022]

      w/ Navigation System (for 12.3 Inch Display): Refer to OPERATION CHECK [12/2019 - 10/2022]

    2. Check how many of the following codes appear in the "Reception number".

      HINT: 

      T or P appears.

      OK

      At least 3 codes appear.

      Result

      Result Proceed to
      OK (for 8 Inch Display) A
      OK (for 12.3 Inch Display) B
      NG C

    Result: 

    REPLACE RADIO & DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2019 - 10/2022] 

    Result: 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2019 - 10/2022] 

    Result: 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [12/2019 - 10/2022]