LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 230 (Safety Connect System (Except Hybrid) - Diagnostic Codes & Symptom Tests) >> SAFETY CONNECT SYSTEM (for Gasoline Model) >> DTC B15C1-11: GNSS Antenna Circuit Short to Ground; DTC B15C1-13: GNSS Antenna Circuit Open [10/2019 - ] >> Procedure

DTC B15C1-11: GNSS Antenna Circuit Short to Ground; DTC B15C1-13: GNSS Antenna Circuit Open [10/2019 - ]: Procedure

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 250, 2023 Lexus ES 350, 2023 Lexus ES 250, and 2022 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC 
    1. Turn the engine switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG) and wait for 10 seconds or more.
    4. Turn the Techstream on.
    5. Clear the DTCs.

      Body Electrical > Telematics > Clear DTCs 

    6. Check for DTCs and check that no DTCs are output.

      Body Electrical > Telematics > 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 [06/2018 - ] 

    Result: 

    NG 

    See step  2

  2. INSPECT TELEPHONE AND GPS ANTENNA CORD (ANTENNA CORD SUB-ASSEMBLY) 
    1. Disconnect the J*1 or E*2 telephone and GPS antenna cord (antenna cord sub-assembly) connector.

      w/ SXM Function 

      GTY791318Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected (Telephone and GPS Antenna Cord (Antenna Cord Sub-assembly))

      w/o SXM Function 

      GTY781517Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected (Telephone and GPS Antenna Cord (Antenna Cord Sub-assembly))
      1. *1: w/ SXM Function
      2. *2: w/o SXM Function
    2. Disconnect the B telephone and GPS antenna cord (antenna cord sub-assembly) connector.
      GTY905107Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected (Telephone and GPS Antenna Cord (Antenna Cord Sub-assembly))
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      W/ SXM FUNCTION

      Tester Connection Condition Specified Condition
      J-4 - B-1 Always Below 1 Ω
      J-4 or B-1 - Body ground Always 10 kΩ or higher
      J-4a - B-1a Always Below 1 Ω
      J-4a or B-1a - Body ground Always 10 kΩ or higher
      W/O SXM FUNCTION

      Tester Connection Condition Specified Condition
      E-1 - B-1 Always Below 1 Ω
      E-1 or B-1 - Body ground Always 10 kΩ or higher
      E-1a - B-1a Always Below 1 Ω
      E-1a or B-1a - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE TELEPHONE AND GPS ANTENNA CORD (ANTENNA CORD SUB-ASSEMBLY). Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    OK 

    See step  3

  3. INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 2 ANTENNA CORD SUB-ASSEMBLY) 
    1. Disconnect the K*1 or F*2 telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) connector.

      w/ SXM Function 

      GTY796161Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected (Telephone and GPS Antenna Cord (No. 2 Antenna Cord Sub-assembly))

      w/o SXM Function 

      GTY825824Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected (Telephone and GPS Antenna Cord (No. 2 Antenna Cord Sub-assembly))
      1. *1: w/ SXM Function
      2. *2: w/o SXM Function
    2. Disconnect the G telephone and GPS antenna cord (No. 2 antenna cord sub-assembly) connector.
      GTY781518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected (Telephone and GPS Antenna Cord (No. 2 Antenna Cord Sub-assembly))
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      W/ SXM FUNCTION

      Tester Connection Condition Specified Condition
      K-4 - G-5 Always Below 1 Ω
      K-4 or G-5 - Body ground Always 10 kΩ or higher
      K-4a - G-5a Always Below 1 Ω
      K-4a or G-5a - Body ground Always 10 kΩ or higher
      W/O SXM FUNCTION

      Tester Connection Condition Specified Condition
      F-1 - G-5 Always Below 1 Ω
      F-1 or G-5 - Body ground Always 10 kΩ or higher
      F-1a - G-5a Always Below 1 Ω
      F-1a or G-5a - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 2 ANTENNA CORD SUB-ASSEMBLY). Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    OK 

    See step  4

  4. INSPECT TELEPHONE AND GPS ANTENNA CORD (NO. 3 ANTENNA CORD SUB-ASSEMBLY) 
    1. Disconnect the I telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) connector.
      GTY782298Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected (Telephone and GPS Antenna Cord (No. 3 Antenna Cord Sub-assembly))
    2. Disconnect the H telephone and GPS antenna cord (No. 3 antenna cord sub-assembly) connector.
      GTY838406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected (Telephone and GPS Antenna Cord (No. 3 Antenna Cord Sub-assembly))
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I-2 - H-5 Always Below 1 Ω
      I-2 or H-5 - Body ground Always 10 kΩ or higher
      I-2a - H-5a Always Below 1 Ω
      I-2a or H-5a - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE TELEPHONE AND GPS ANTENNA CORD (NO. 3 ANTENNA CORD SUB-ASSEMBLY). Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    OK 

    See step  5

  5. REPLACE TELEPHONE AND GPS ANTENNA ASSEMBLY (for Roof Side) 
    1. Replace the telephone and GPS antenna assembly (for Roof Side) with a new or known good one and check if the same problem occurs again.

      Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

      OK

      The system returns to normal.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    See step  6

  6. REPLACE DCM (TELEMATICS TRANSCEIVER) 
    1. Replace the DCM (Telematics Transceiver).

      Refer to REMOVAL [10/2019 - 08/2020] , or refer to REMOVAL [08/2020 - 09/2022] , or refer to REMOVAL [09/2022 - ]

      NOTE:
      • The engine switch must be off.
      • Do not swap the DCM (Telematics Transceiver) with one from another vehicle.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    PERFORM DCM ACTIVATION. Refer to  DCM ACTIVATION [10/2019 - ] 

scientia non olet · About LEMON Manuals