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Auto Leveling Control Module Removal/Installation

NOTE:
  • The auto leveling control module stores the vehicle specification information.
  • A new auto leveling control module does not store any vehicle specification information.
  • When the ignition is switched ON after the auto leveling control module is replaced, the auto leveling control module reads the vehicle specification information sent via CAN transmission from the instrument cluster, and stores the vehicle specification information.
  • The auto leveling control module records the vehicle height while it is unoccupied.
  • Even if the battery is disconnected, the unoccupied vehicle height recorded by the auto leveling control module is not erased.
  • The new auto leveling control module does not record the vehicle height while it is unoccupied.
  • The auto leveling control module reads the vehicle height information from the auto leveling sensor and records the vehicle height while it is unoccupied when the headlight auto leveling system initial setting is performed after the auto leveling control module is replaced.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Remove the front scuff plate (LH). (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
  3. Remove the front side trim (LH). (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
  4. Disconnect the connector.
    G11435053Courtesy of MAZDA MOTORS CORP.
  5. While pressing hooks of the bracket in the direction of arrows (1) shown in the figure, pull the auto leveling control module in the direction of arrow (2) to detach hooks of the bracket from the auto leveling control module.
    G11435054Courtesy of MAZDA MOTORS CORP.
  6. Remove the auto leveling control module.
  7. Install in the reverse order of removal.
  8. Perform the auto leveling control module automatic configuration using the following procedure.
    1. Switch the ignition ON (engine off or on) and wait for 1 min or more.
    2. Switch the ignition off and wait for 3 s or more.
    3. Switch the ignition ON (engine off or on) and complete the auto leveling control module automatic configuration.
  9. Using the M-MDS, verify that DTCs U2300:54, U2300:55, or U2300:56 is not displayed.
  10. If the auto leveling control module is replaced with a new one, perform the headlight auto leveling system initialization. (with auto leveling sensor) (See HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION .)
  11. Perform the headlight auto leveling system initialization. (without auto leveling sensor) (See HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION .)
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