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Backup Power Supply Removal/Installation

  1. Operate the door lock actuator using the following procedure and deplete the energy stored in the backup power supply.
    NOTE:
    • If the energy stored in the backup power supply has already been depleted, the door lock actuator does not operate. As this does not indicate an improper procedure, continue to perform the procedure as indicated.
    1. Remove the D.LOCK 25A fuse.
    2. Close the front door (driver's side)
    3. Repeat the lock/unlock operation of the door lock switch (driver's side) until all the door lock knobs do not move.
  2. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  3. Remove the following parts:
    1. Trunk covering (See TRUNK COVERING REMOVAL/INSTALLATION .)
    2. Trunk board (See TRUNK BOARD REMOVAL/INSTALLATION .)
    3. Trunk side pocket (LH) (See TRUNK SIDE POCKET REMOVAL/INSTALLATION .)
    4. Trunk end trim (See TRUNK END TRIM REMOVAL/INSTALLATION .)
    5. Rear scuff plate (LH) (See REAR SCUFF PLATE REMOVAL/INSTALLATION .)
    6. Third-row seat cushion (See THIRD-ROW SEAT CUSHION REMOVAL/INSTALLATION .)
    7. Third-row seat back component (See THIRD-ROW SEAT BACK COMPONENT REMOVAL/INSTALLATION .)
    8. Trunk side trim (LH) (See TRUNK SIDE TRIM REMOVAL/INSTALLATION .)
  4. Disconnect the connector shown in the figure.
    G13702518Courtesy of MAZDA MOTORS CORP.
  5. Remove the nuts.
    Fig 1: Backup Power Supply Nuts With Torque Specification
    G13702519Courtesy of MAZDA MOTORS CORP.
  6. Remove the backup power supply.
  7. Install in the reverse order of removal.
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