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Brake Control Power Supply: Removal: Removal

NOTE:

While the battery is connected, even if the engine switch is off, the brake control system activates when the brake pedal is depressed or the door courtesy switch turns on. Therefore during servicing of the brake system components, do not operate the brake pedal and open/close the doors while the battery is connected.

  1. REMOVE COWL TOP VENTILATOR LOUVER RH  . Refer to REMOVAL - Step 1
  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    WARNING:

    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

    NOTE:
    • w/ Navigation System (for HDD):

      After the engine switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the engine switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) battery terminal.

      Waiting Time before Disconnecting Cable from Negative (-) Battery Terminal

      Condition Waiting Time
      Vehicle enrolled in safety connect system 6 minutes
      Vehicle not enrolled in safety connect system 1 minute
    • When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION .
  3. REMOVE REAR FLOOR FINISH PLATE  . Refer to REMOVAL - Step 12
  4. REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY  . Refer to REMOVAL - Step 3
  5. REMOVE DECK TRIM SIDE BOARD LH  . Refer to REMOVAL - Step 7
  6. REMOVE LUGGAGE COMPARTMENT TRIM COVER ASSEMBLY LH  . Refer to REMOVAL - Step 13
  7. REMOVE BRAKE CONTROL POWER SUPPLY COVER 
    NOTE:

    Do not remove the cover if planning to reuse the brake control power supply.

    1. Remove the cover if planning to replace the brake control power supply.
      Fig 1: Identifying Brake Control Power Supply Cover
      GTY260555Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE BRAKE CONTROL POWER SUPPLY ASSEMBLY 
    WARNING:

    Immediately after removing the brake control power supply from the vehicle, there may be an electrical charge left in the internal capacitor. If planning to inspect the inside of the brake control power supply, leave it as is for more than 24 hours (to discharge it) after removing it from the vehicle. Then perform the inspection.

    1. Remove the 3 nuts and brake control power supply.
      Fig 2: Identifying Brake Control Power Supply Nuts And Connector
      GTY260008Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the connector.
  9. REMOVE NO. 1 BRAKE CONTROL POWER SUPPLY BRACKET 
    1. Remove the 4 bolts and 2 brackets.
      Fig 3: Identifying No. 1 Brake Control Power Supply Bracket And Bolts
      GTY257930Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002