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Home >> Lexus >> 2021 >> LS 500 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System - Circuit Tests (6 Of 9) >> Can Communication System >> Open in One Side of Bus 3 Branch Line [10/2020 - 10/2022] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

NOTE:
  • Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2020 - 10/2023]

  • After performing repairs, perform the DTC check procedure and confirm that the DTCs are not output again.

    DTC check procedure: Turn the engine switch on (IG) and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.

  • After the repair, perform the CAN bus check and check that all the ECUs and sensors connected to the CAN communication system are displayed as normal.

    Refer to DIAGNOSIS SYSTEM [10/2020 - 10/2022]

  • Some parts must be initialized and set when replacing or removing and installing parts.

    Refer to WORK PROCEDURE [10/2020 - 11/2021] , or refer to WORK PROCEDURE [11/2021 - 10/2022]

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