LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 340 (Navigation System (2019-Early 2023) - Circuit Tests (2 Of 3)) >> Navigation System >> Data Signal Circuit between Radio Receiver and Stereo Jack Adapter [09/2019 - 04/2020] >> Procedure

Data Signal Circuit between Radio Receiver and Stereo Jack Adapter [09/2019 - 04/2020]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 Toyota GR Corolla, 2023 Toyota Corolla, 2022 Toyota Corolla, 2021 Toyota Corolla, and 2020 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/o AUX Function A
      w/ AUX Function B

    Result: 

    B 

    See step  3

    Result: 

    A 

    See step  2

  2. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY) 
    1. Disconnect the x2 radio and display receiver assembly connector.
    2. Disconnect the x1 No. 1 stereo jack adapter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY857265Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
      *b Front view of wire harness connector
      (to No. 1 Stereo Jack Adapter Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      x2-2 (US1-) - x1-9 (UDO-) Always Below 1 Ω
      x2-3 (US1+) - x1-10 (UDO+) Always Below 1 Ω
      x2-5 (USG1) - x1-12 (UJSS) Always Below 1 Ω
      x2-2 (US1-) or x1-9 (UDO-) - Body ground Always 10 kΩ or higher
      x2-3 (US1+) or x1-10 (UDO+) - Body ground Always 10 kΩ or higher
      x2-5 (USG1) or x1-12 (UJSS) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2019 - 04/2020] 

    Result: 

    NG 

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY. Refer to  REMOVAL [03/2019 - 04/2020] 

  3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY) 
    1. Disconnect the I115 radio and display receiver assembly connector.
    2. Disconnect the I114 No. 1 stereo jack adapter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY926469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
      *b Front view of wire harness connector
      (to No. 1 Stereo Jack Adapter Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      I115-2 (US1-) - I114-9 (UDO-) Always Below 1 Ω
      I115-3 (US1+) - I114-10 (UDO+) Always Below 1 Ω
      I115-5 (USG1) - I114-12 (UJSS) Always Below 1 Ω
      I115-2 (US1-) or I114-9 (UDO-) - Body ground Always 10 kΩ or higher
      I115-3 (US1+) or I114-10 (UDO+) - Body ground Always 10 kΩ or higher
      I115-5 (USG1) or I114-12 (UJSS) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2019 - 04/2020] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

scientia non olet · About LEMON Manuals