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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 113 (Audio / Video System (For 8 Inch Display) - Diagnostic Codes (2 Of 2) & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (for 8 Inch Display) >> Wi-Fi Connection History [09/2022 - ] >> Procedure

Wi-Fi Connection History [09/2022 - ]: Procedure

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  1. CHECK "Wi-Fi" SETTINGS 
    1. Check that the following Wi-Fi connection settings are set as follows:

      "Wi-Fi" is set to on.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    PERFORM WI-FI SETTING AGAIN 

    Result: 

    OK 

    See step  2

  2. CHECK CONDITIONS AND PROCEDURE 
    1. Check the conditions and procedure for establishing a "Wi-Fi" connection, and perform the "Wi-Fi" connection procedure again.

      HINT: 

      • As there may be wave interference, disconnect other "Wi-Fi" compatible devices or "Bluetooth" compatible devices before establishing a "Wi-Fi" connection.
      • A "Wi-Fi" connection can be established manually or automatically.
      • There are 2 ways to establish a manual "Wi-Fi" connection. Connecting by searching for a "Wi-Fi" access point, and connecting by entering an SSID and password.
      • Even though an automatic connection is enabled, a connection can be established only when a "Wi-Fi" access point with the same SSID and password that were used for a previous connection exists.

      Result

      Result Proceed to
      "Wi-Fi" connection can be established. A
      "Wi-Fi" connection cannot be established. B

    Result: 

    END 

    Result: 

    See step  3

  3. CHECK DEVICE TO BE CONNECTED VIA "Wi-Fi" 
    1. Check the device to be connected via "Wi-Fi".

      HINT: 

      Considering the radio wave environment around the vehicle, move the vehicle and establish a "Wi-Fi" connection.

      Result

      Result Proceed to
      The in-vehicle device is trying to connect to the "Wi-Fi" access point of a portable device such as a mobile "Wi-Fi" router, tethering device, etc. A
      The in-vehicle device is trying to connect to a "Wi-Fi" access point other than a portable device. B

    Result: 

    See step  5

    Result: 

    See step  4

  4. CHECK PORTABLE DEVICE 
    1. Bring a portable device to be used to establish a "Wi-Fi" connection near the in-vehicle device, and perform "Wi-Fi" connection again.

      HINT: 

      • Considering the radio wave environment around the vehicle, move the vehicle and establish a "Wi-Fi" connection.
      • Depending on the type of the portable device, customer operation such as internet sharing, tethering settings, etc., may be required whenever establishing a "Wi-Fi" connection.

      Result

      Result Proceed to
      "Wi-Fi" connection can be established. A
      "Wi-Fi" connection cannot be established. B

    Result: 

    END 

    Result: 

    See step  6

  5. MOVE VEHICLE 
    1. Move the vehicle to an access point where "Wi-Fi" connection can be established normally with other vehicles, and perform the "Wi-Fi" connection procedure again.

      HINT: 

      • When the in-vehicle device is connected to an outside "Wi-Fi" access point, the "Wi-Fi" connection will be disconnected if leaving the radio wave service area.
      • This function is not designed to be used while driving. Use this function only when the vehicle is stopped.

      Result

      Result Proceed to
      "Wi-Fi" connection can be established. A
      "Wi-Fi" connection cannot be established. B

    Result: 

    END (ACCESS POINT WAS ABNORMAL) 

    Result: 

    See step  7

  6. CHECK RESULT OF "Wi-Fi Connection History" 
    1. Check the wave interference while a "Wi-Fi" connection is established.

      HINT: 

      • Check the "W-Fi Connection History" around the time that the malfunction occurred.
      • Using the GTS, proceed to the appropriate link in accordance with the result of "Wi-Fi Connection History".

        Refer to UTILITY [09/2022 - ]

      Result

      Result Proceed to
      "Received Signal Strength" is -71 dBm or less A
      "Data Rate" is "Slow Speed"
      "Packet Error Rate" is 5% or more
      "Result" is "Connection Failure (Authentication Failure)" B
      "Result" is "Connection Failure (Time Out)" C
      None of the above D

    Result: 

    ESTABLISH "WI-FI" CONNECTION IN AREA WITH LITTLE WAVE INTERFERENCE 

    Result: 

    EXPLAIN TO CUSTOMER THAT THERE WAS POSSIBILITY THAT USED PASSWORD WAS NOT CORRECT 

    Result: 

    CHECK POWER AND CHARGING STATE OF CONNECTED EXTERNAL DEVICE, AND RESTART IT AND PERFORM "WI-FI" CONNECTION PROCEDURE AGAIN 

    Result: 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [09/2022 - ] 

  7. CHECK "Wi-Fi" ACCESS POINT 
    1. Bring a well-known portable device such as a mobile "Wi-Fi" router, tethering device, etc., near the in-vehicle device, and perform the "Wi-Fi" connection procedure again.

      HINT: 

      • Considering the radio wave environment around the vehicle, move the vehicle and establish a "Wi-Fi" connection.
      • Depending on the type of the portable device, customer operation such as internet sharing, tethering settings, etc., may be required whenever establishing a "Wi-Fi" connection.

      Result

      Result Proceed to
      "Wi-Fi" connection can be established. A
      "Wi-Fi" connection cannot be established. B

    Result: 

    END (ACCESS POINT WAS TEMPORARY ABNORMAL) 

    Result: 

    See step  6