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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 77 (Motor Generator Control System (AWD) - Diagnostic Codes (5 Of 5)) >> MOTOR GENERATOR CONTROL SYSTEM (for AWD) >> DTC P322F-11: Communication Error from Airbag to Generator Circuit Short to Ground [12/2019 - 11/2023] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.
WARNING:
  • Before the following operations are conducted, take precautions to prevent electric shock by turning the ignition switch off, wearing insulated gloves, and removing the service plug grip from HV battery.
    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 voltage inverter assembly (w/ 1500W voltage inverter)
  • To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.
    GTY687067Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  • After removing the service plug grip from the HV battery, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
    GTY703958Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  • After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
    GTY733532Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Without waiting for 10 minutes

    Refer to PRECAUTION [12/2019 - 10/2022] , or refer to PRECAUTION [10/2022 - 11/2023]

    HINT: 

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

NOTE:

After turning the ignition 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 INITIALIZATION [12/2019 - 09/2020] , or refer to INITIALIZATION [09/2020 - 10/2021] , or refer to INITIALIZATION [10/2021 - 10/2022] , or refer to INITIALIZATION [10/2022 - 11/2023]