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Problem Symptoms Table

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. COMMUNICATION STOP MODE TABLE 
    1. Check that there is no open circuit in the CAN main bus line, short between the lines, or short to +B in "CHECK CAN BUS LINE". Select "CAN Bus Check" on Techstream.
    2. Check that the communication stop mode of the ECUs or sensors is not displayed among the following: "Engine", "ECT", "ABS/VSC/TRAC", "Yaw Rate / Deceleration Sensor", "Steering Angle Sensor", and "CAN Gateway".
      NOTE:
      • Systems using the CAN communication system differ according to optional settings. Check which ECUs or sensors are installed on the vehicle.
      • Non-installed ECUs or sensors will not be displayed. Do not mistake them for being in communication stop mode.
      • If 2 or more ECUs or sensors are not displayed on the Techstream, perform troubleshooting for communication stop mode for each non displayed ECU or sensor. (Either side of the CAN bus lines may be open.)
    CAN COMMUNICATION SYSTEM

    Symptom Suspected Area See
    "Engine" and "ECT" are not displayed on the Techstream. ECM Communication Stop Mode Refer to ECM Communication Stop Mode 
    "ABS/VSC/TRAC" is not displayed on the Techstream. Skid Control ECU Communication Stop Mode Refer to Skid Control ECU Communication Stop Mode 
    "Steering Angle Sensor" is not displayed on the Techstream. Steering Angle Sensor Communication Stop Mode Refer to Steering Angle Sensor Communication Stop Mode 
    "Yaw Rate / Deceleration Sensor " is not displayed on the Techstream. Yaw Rate Sensor Communication Stop Mode Refer to Yaw Rate Sensor Communication Stop Mode 
    "CAN Gateway" is not displayed on the Techstream. Gateway ECU Communication Stop Mode Refer to Gateway ECU Communication Stop Mode 
    "AVN1" is not displayed on the Techstream. Navigation ECU Communication Stop Mode Refer to Navigation ECU Communication Stop Mode 
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