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Check For Intermittent Problems [12/2023 - ]

WARNING: This page is about a different car, the 2024 Toyota Mirai. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read out and saved, the operation history information could be lost.
  • The function "Read operation history" uses the current system time setting inside the GTS and the time counter inside the controlling ECU to calculate the timings shown in the operation history. For this reason, before reading out the operation history, first make sure that the GTS system clock is accurately set to the current time.
  • The time counter in the control ECU may deviate by up to +/- 10% due to the characteristics of the time counter.
  • The time counter in the control ECU is reset approximately 34 days before the "Current" value due to the characteristics of the time counter. Therefore, the time information stored before the 34th day may not be accurately displayed.
  1. Operation History 

    HINT: 

    Operation history: The main body ECU (multiplex network body ECU) records the power window control system operation history, which can be read out using the GTS.

    1. Enter the following menus: Body Electrical / Main Body / Utility / Operation History.

      Body Electrical > Main Body > Utility 

      Tester Display
      Operation History
    2. Following the instructions on the screen, save the operation history.
      POWER WINDOW

      Operation History List
      Window Close by Door Key Operation
      Window Close by Wireless Operation
      Window Close by Accessory Operation
      Window Close by IG OFF Linked Function
      Window Close by Wiper Linked Function
      Window Open by Door Key Operation
      Window Open by Wireless Operation
      Window Open by Accessory Operation

      HINT: 

      Some items are not displayed depending on the vehicle.

  2. Symptom Simulation 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2020 - ]