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DTC B1547-11: GNSS Antenna Circuit Short to Ground; DTC B1547-13: GNSS Antenna Circuit Open [10/2022 - 11/2024]: Procedure

  1. INSPECT NAVIGATION ANTENNA ASSEMBLY 

    Refer to INSPECTION [12/2019 - 11/2024]

    Result

    Proceed to
    OK
    NG

    Result: 

    NG 

    REPLACE NAVIGATION ANTENNA ASSEMBLY 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    OK 

    See step  2

  2. INSPECT NO. 2 ANTENNA CORD SUB-ASSEMBLY 
    1. Disconnect the navigation antenna assembly connector.
      GTY1067172Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of No. 2 antenna cord sub-assembly connector
      (to Navigation Antenna Assembly)
    2. Disconnect the radio and display receiver assembly connector.
      GTY1070254Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of No. 2 antenna cord sub-assembly connector
      (to Radio and Display Receiver assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      D-3 - A-1 Always Below 1 Ω
      D-3a - A-1a Always Below 1 Ω
      D-3a or A-1a - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY 

    Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - 11/2024]