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Home >> Lexus >> 2018 >> LC 500 >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Navigation System - Diagnostic Codes (Coupe) (2 Of 2) & Symptom Tests (1 Of 2) >> Navigation System >> DTC B15FE: XM Tuner Antenna Disconnected; DTC B15FF: XM Tuner Antenna Short [03/2017 - 05/2023] >> Procedure

DTC B15FE: XM Tuner Antenna Disconnected; DTC B15FF: XM Tuner Antenna Short [03/2017 - 05/2023]: Procedure

  1. CHECK CONNECTION OF ANTENNA CABLE 
    1. Check if the satellite radio antenna assembly cable is securely connected to the radio receiver assembly.

      OK

      Satellite radio antenna assembly cable is securely connected.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    SECURELY CONNECT SATELLITE RADIO ANTENNA CABLE 

    Result: 

    OK 

    See step  2

  2. CHECK DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 06/2019] , or refer to DTC CHECK / CLEAR [06/2019 - 04/2020] , or refer to DTC CHECK / CLEAR [04/2020 - 10/2022] , or refer to DTC CHECK / CLEAR [10/2022 - 05/2023]

      Body Electrical > Navigation System > Clear DTCs 

    2. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [03/2017 - 06/2019] , or refer to DTC CHECK / CLEAR [06/2019 - 04/2020] , or refer to DTC CHECK / CLEAR [04/2020 - 10/2022] , or refer to DTC CHECK / CLEAR [10/2022 - 05/2023]

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 04/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2020 - 05/2023] 

    Result: 

    NG 

    See step  3

  3. CHECK ANTENNA CORD SUB-ASSEMBLY 
    1. Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.
      GTY799681Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to No. 2 Antenna Cord Sub-assembly)
      *b Front view of wire harness connector
      (to Radio Receiver Assembly)
    2. Disconnect the antenna connector from the radio receiver assembly.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      B-2 - C-1 (SXM) Always Below 1 Ω
      B-2a - C-1a Always Below 1 Ω
      B-2 or C-1 (SXM) - Body ground Always 10 kΩ or higher
      B-2a or C-1a - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE ANTENNA CORD SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2019]  , or refer to  REMOVAL [06/2019 - 05/2023] 

    Result: 

    OK 

    See step  4

  4. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY 
    1. Disconnect the antenna connector from the wire harness.
      GTY790891Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Wire Harness)
      *b Front view of wire harness connector
      (to Antenna Cord Sub-assembly)
    2. Disconnect the antenna connector from the antenna cord sub-assembly.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      X116-1 (SDARS) - B-2 Always Below 1 Ω
      X116-1a - B-2a Always Below 1 Ω
      X116-1 (SDARS) or B-2 - Body ground Always 10 kΩ or higher
      X116-1a or B-2a - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2019]  , or refer to  REMOVAL [06/2019 - 05/2023] 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (NO. 2 ANTENNA CORD SUB-ASSEMBLY - NO. 6 ANTENNA CORD SUB-ASSEMBLY) 
    1. Disconnect the X116 No. 2 antenna cord sub-assembly connector.
    2. Disconnect the X117 No. 6 antenna cord sub-assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      X116-1 (SDARS) - X117-1 (SDARS) Always Below 1 Ω
      X116-1a - X117-1a Always Below 1 Ω
      X116-1 (SDARS) or X117-1 (SDARS) - Body ground Always 10 kΩ or higher
      X116-1a or X117-1a - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  6

  6. CHECK NO. 6 ANTENNA CORD SUB-ASSEMBLY 
    1. Disconnect the antenna connector from the satellite radio antenna assembly.
      GTY810789Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Satellite Radio Antenna Assembly)
      *b Front view of wire harness connector
      (to Wire Harness)
    2. Disconnect the antenna connector from the wire harness.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      A-1 - X117-1 (SDARS) Always Below 1 Ω
      A-1a - X117-1a Always Below 1 Ω
      A-1 or X117-1 (SDARS) - Body ground Always 10 kΩ or higher
      A-1a or X117-1a - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE NO. 6 ANTENNA CORD SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - ] 

    Result: 

    OK 

    See step  7

  7. CHECK SATELLITE RADIO ANTENNA ASSEMBLY 
    1. Replace the satellite radio antenna assembly with a new or known good one.

      Refer to REMOVAL [03/2017 - ]

    2. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 06/2019] , or refer to DTC CHECK / CLEAR [06/2019 - 04/2020] , or refer to DTC CHECK / CLEAR [04/2020 - 10/2022] , or refer to DTC CHECK / CLEAR [10/2022 - 05/2023]

      Body Electrical > Navigation System > Clear DTCs 

    3. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [03/2017 - 06/2019] , or refer to DTC CHECK / CLEAR [06/2019 - 04/2020] , or refer to DTC CHECK / CLEAR [04/2020 - 10/2022] , or refer to DTC CHECK / CLEAR [10/2022 - 05/2023]

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (SATELLITE RADIO ANTENNA ASSEMBLY IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [03/2017 - 05/2023]