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Home >> Toyota >> 2022 >> Corolla XLE >> Repair and Diagnosis >> External Pages >> Different car >> Section 444 (Can Communication System (Except HEV) (Early 2023, Except TMC) - Circuit Tests (1 Of 2) & Diagnostic Codes) >> CAN COMMUNICATION SYSTEM (for Gasoline Model except TMC Made) >> Open in One Side of Bus 1 Branch Line [09/2022 - 11/2022] >> Procedure

Open in One Side of Bus 1 Branch Line [09/2022 - 11/2022]: Procedure

WARNING: This page is about a different car, the 2023 Toyota GR Corolla and 2023 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR OPEN IN ONE SIDE OF CAN BRANCH LINE 
    1. Based on the vehicle equipment and specifications, confirm the systems that use CAN communication.

      Refer to DIAGNOSIS SYSTEM [09/2022 - 11/2022]

    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Using the Techstream, perform "CAN Bus Check".

      CAN Bus Check 

    6. Observe the screen for approximately 2 minutes to check for ECUs and sensors that are displayed as not communicating.
    7. Perform the inspection as specified in the Problem Symptoms Table for the ECUs or sensors that are not communicating.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    GO TO CORRESPONDING COMMUNICATION STOP MODE. Refer to  PROBLEM SYMPTOMS TABLE [09/2022 - 11/2022] 

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