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Precaution [07/2020 - ]

  1. PRECAUTIONS FOR INSPECTING PLUG-IN CHARGE CONTROL SYSTEM 
    1. Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip from HV battery.
      Fig 1: Wear Insulated Gloves
      GTY588386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Inspecting the high-voltage system
      • Disconnecting the low voltage connector of the inverter with converter assembly
      • Disconnecting the low voltage connector of the HV battery
      • Disconnecting the low voltage connector of the electric vehicle charger assembly
      GTY730777Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

        Refer to PRECAUTION [05/2019 - ]

      • After removing the service plug grip, turning the power switch on (READY) may cause a malfunction. Do not turn the power switch on (READY) unless instructed by the repair information.
    2. To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.
      Fig 2: Do Not Service The Vehicle Before Cutting Of The High-Voltage Circuit
      GTY687067Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
      Fig 3: Do Not Leave Service Plug Grip Accessible To Other Technicians
      GTY703958Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals.

      HINT: 

      Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

      Fig 4: Do Not Service Vehicle Before Waiting At Least 10 Minutes After Discharging High Voltage Capacitor
      GTY698431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Without waiting for 10 minutes
    5. Check the voltage at the terminals in the inspection point in the inverter with converter assembly.
      WARNING:

      Be sure to wear insulated gloves.

      1. Remove the connector cover assembly from the inverter with converter assembly.

        Refer to REMOVAL [07/2020 - ]

        GTY729487Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE:
        • Do not touch the connector cover assembly waterproof seal.
        • Do not allow any foreign matter or water to enter the inverter with converter assembly.
      2. Measure the voltage according to the value(s) in the table below.
        Fig 5: Measuring Voltage Between Terminals Of Phase Connectors
        GTY541774Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Voltage

        Tester Connection Condition Specified Condition
        Inspection point At least 10 minutes after removing the service plug grip 0 V

        HINT: 

        Set the tester to DC750 V or more to measure the voltage.

      3. Reinstall the connector cover assembly.
    6. When turning the power switch on (IG) during an inspection, do not press the power switch with the brake pedal depressed.
      WARNING:

      Pressing the power switch with the brake pedal depressed causes the system to enter the READY-on state. This is very dangerous because high voltage may be applied to the inspection area.

      Fig 6: Do Not Service The Vehicle Before Disconnecting The Negative Battery Terminal
      GTY734749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Turn the power switch off, wear insulated gloves, and disconnect the cable from the negative (-) terminal of the auxiliary battery before touching any of the orange-colored wires of the high-voltage system.
      NOTE:

      After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

      Refer to PRECAUTION [05/2019 - ]

    8. Turn the power switch off before performing any resistance checks.
    9. Turn the power switch off before disconnecting or reconnecting any connectors.
    10. When performing work involving high-voltage wires, use either a tool wrapped with vinyl insulation tape or an insulated tool.
    11. When high-voltage connectors are removed, wrap the connectors with vinyl insulating tape to prevent foreign matter or water from entering them.
  2. PRECAUTIONS FOR DISCONNECTING AMD TERMINAL 

    HINT: 

    The AMD terminal is connected to the positive (+) terminal of the auxiliary battery. To prevent damage when disconnecting the AMD terminal, perform the following procedures.

    1. Be sure to disconnect the cable from the negative (-) auxiliary battery terminal before disconnecting the AMD terminal from the fusible link assembly.
      NOTE:

      After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

      Refer to PRECAUTION [05/2019 - ]

      Fig 7: AMD Terminals
      GTY565918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 AMD Terminal (Inverter with Converter Assembly Side)
      *2 AMD Terminal (Fusible Link Assembly Side)
    2. After disconnecting the AMD terminal, wrap it with vinyl insulating tape.
    3. Be sure to reconnect the AMD terminal to the fusible link assembly before reconnecting the cable to the negative (-) terminal of the auxiliary battery.
      NOTE:

      A short to ground may occur if the AMD terminal is disconnected before the cable is disconnected from the negative (-) auxiliary battery terminal. If a short to ground occurs, a fusible link or fuse may break.

  3. DISPOSING OF HV BATTERY AND HV SUPPLY STACK SUB-ASSEMBLY 
    1. When disposing of HV batteries and HV supply stack sub-assemblies, make sure to return them through an authorized collection agent who is capable of handling them safely. If they are returned via the manufacturer specified route, they will be returned properly and in a safe manner by an authorized collection agent.
      WARNING:
      • Before returning the HV battery, make sure to perform a recovery inspection.

        Refer to RECOVERY INSPECTION [09/2016 - ]

      • Before returning the HV supply stack sub-assembly, make sure to perform a recovery inspection.

        Refer to RECOVERY INSPECTION [09/2016 - ]

      • After removing the HV battery or the HV supply stack sub-assembly, keep it away from water. Exposure to water may cause the HV battery or the HV supply stack sub-assembly to produce heat, resulting in a fire.
        Fig 8: Do Not Expose HV Battery To Moisture
        GTY734750Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Accidents such as electric shock may result if the HV battery or the HV supply stack sub-assembly is disposed of improperly or abandoned.

        Therefore, make sure to return HV battery and all HV supply stack sub-assemblies through an authorized collection agent.

        Fig 9: HV Supply Stack Improper Disposal Warning
        GTY724561Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Dealer
        *b Battery Collection Agent
      • To reduce the risk of fire, HV battery or HV supply stack sub-assemblies must not be stored in an area where they will be exposed to fire or high temperatures.
      • If the temperature of the HV battery and HV supply stack sub-assembly is high, leave the vehicle until the temperature drops.
      • Make sure to insulate the high-voltage connectors and terminals of the HV battery or HV supply stack sub-assemblies with insulating tape after removing them.

        If the HV battery stored without insulating the connectors and terminals, electric shock or fire may result.

  4. PRECAUTIONS WHEN REPLACING HYBRID VEHICLE CONTROL ECU 
    NOTE:

    Before replacing the hybrid vehicle control ECU, refer to Registration.

    Refer to REGISTRATION [05/2019 - ]

  5. PRECAUTIONS FOR DISCONNECTING AND RECONNECTING CABLE TO NEGATIVE (-) AUXILIARY BATTERY TERMINAL 
    Fig 10: Disconnecting Cable From Negative (-) Battery Terminal
    GTY371121Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Cable
    *2 Negative (-) Battery Terminal
    1. Before performing work on electronic components, disconnect the cable from the negative (-) auxiliary battery terminal to prevent damage to the electrical system or electrical components.
    2. Before disconnecting and reconnecting the auxiliary battery cable, turn the power switch off and the headlight switch off. Then loosen the terminal nut completely. Do not damage the cable or terminal.
    3. When the auxiliary battery cable is disconnected, the clock and radio settings and stored DTCs are cleared. Therefore, before disconnecting the auxiliary battery cable, make a note of them.
      NOTE:
      • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

        Refer to PRECAUTION [05/2019 - ]

      • When the cable is disconnected from the negative (-) auxiliary battery terminal, initialize the following systems after the cable is reconnected.
      System Name See Procedure
      Lane Tracing Assist System Refer to INITIALIZATION [07/2020 - ]
      Pre-collision System
      Intelligent Clearance Sonar System
      Simple Advanced Parking Guidance System
      Power Door Lock Control System
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