Auto Leveling Control Module Removal/Installation

CAUTION:

If the auto leveling control module is replaced with a new one, perform the configuration after replacing it.
If configuration is not performed, the system does not operate normally.

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.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Remove the following parts:
1. Passenger-side scuff plate (See SCUFF PLATE REMOVAL/INSTALLATION .)
2. Passenger-side front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
3. Passenger-side A-pillar trim (See A-PILLAR TRIM REMOVAL/INSTALLATION .)
4. Passenger-side lower panel (See PASSENGER-SIDE LOWER PANEL REMOVAL/INSTALLATION .)
Remove the duct.

Courtesy of MAZDA MOTORS CORP.
While pressing the clip tabs in the direction of arrows (1) shown in the figure, press the clip in the direction of arrow (2) to detach the clip tabs from the auto leveling control module.

Fig 1: Auto Leveling Control Module, Connector And Nut With Torque Specifications
Courtesy of MAZDA MOTORS CORP.
Remove the nut.
Disconnect the connector.
Remove the auto leveling control module.
Install in the reverse order of removal.
If the auto leveling control module is replaced, perform the following procedure.
1. Perform the auto leveling control module configuration using the M-MDS.
  1) Connect the M-MDS to the DLC-2.
  
  2) Switch the ignition ON (engine off or on).
  
  3) Perform the following procedure below using the M-MDS.
  CAUTION:
  - If the configuration fails, perform the configuration again.
  1. Press [Start] for the vehicle identification.
  2. Press the [Toolbox] tab.
  3. Press the [Work Support] icon.
  4. Press [Configuration].
  5. Press [Run] for [Configuration].
  6. Press [Other].
  4) Perform the servicing following the instructions on the screen.
  CAUTION:
  - When performing the configuration, CAN communication is cut temporarily and communication error DTCs may be detected. After performing the configuration, perform the DTC inspection and clear DTCs if any are displayed.
  5) Perform the DTC inspection. (Refer to [DTC INSPECTION ] )
  - If a DTC is displayed, clear it. (Refer to [CLEARING DTC ] )
    - If the DTC is displayed again, repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
  6) If the configuration fails, perform the configuration procedure again.
2. Using the M-MDS, verify that DTCs U2300:54, U2300:55, or U2300:56 is not displayed.
  - If DTC U2300:54, U2300:55, or U2300:56 is displayed, go to the DTC troubleshooting procedure. Refer to the troubleshooting information for the procedure for using the M-MDS. (Refer to HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION )
3. Perform the headlight auto leveling system initialization. (See HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION .)
4. Adjust the headlight aiming. (See HEADLIGHT AIMING .)