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Home >> Toyota >> 2019 >> Sienna SE, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System - Diagnostic Codes (2 Of 2) & Circuit Tests (1 Of 3) >> Can Communication System >> Circuit Tests >> Radio Receiver Assembly Communication Stop Mode [11/2017 - ] >> 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 [11/2017 - ]

  • Before measuring the resistance of the CAN bus, turn the engine switch off and leave the vehicle for 1 minute or more without operating the key or any switches, or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Refer to PRECAUTION [08/2016 - ]

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

    Refer to INITIALIZATION [11/2017 - ]

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

    DTC check procedure: Turn the ignition switch to ON 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 DTC COMBINATION TABLE [11/2017 - 08/2018] , or refer to DTC COMBINATION TABLE [08/2018 - ]

  • The following may occur if a radio and display receiver assembly from another vehicle is installed to this vehicle. Therefore, when replacing the radio and display receiver assembly, be sure to replace it with a new one.
    • A communication malfunction DTC is stored.
    • The radio and display receiver assembly does not operate normally.
  • Inspect the fuses for circuits related to this system before performing the following procedure.

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