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DSC HU/Cm Removal/Installation: Notes

WARNING:
  • If the DSC HU/CM configuration is not completed, it could result in an unexpected accident due to the DSC being inoperative. If the DSC HU/CM is replaced, always use the automatic configuration function so that the DSC operation conditions are correct.
  • If the DSC related parts sensor initialization procedure is not completed, the DSC will not operate properly and it might cause an unexpected accident. Therefore, after replacing the DSC HU/CM, always perform the DSC related parts sensor initialization procedure to insure proper DSC operation.
CAUTION:
  • The internal parts of the DSC HU/CM could be damaged if dropped. Be careful not to drop the DSC HU/CM. Replace the DSC HU/CM if it is subjected to an impact.
NOTE:
  • When the ignition is switched to ON or the engine is started after the DSC HU/CM has been replaced, the DSC CM reads data from the instrument cluster via CAN communication to perform automatic configuration.
  • The DSC HU/CM prior to replacement stores the vehicle specification information.
  • A new DSC HU/CM does not store any vehicle specification information.
  1. Remove the plug hole plate. (Refer to PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
  2. Remove the bracket.
    Fig 1: Identifying Bracket And DSC HU/CM Bolt With Torque Specification
    G10960801Courtesy of MAZDA MOTORS CORP.
  3. Remove in the order indicated in the table.
  4. Install in the reverse order of removal.
  5. After installation, add brake fluid, bleed the air, and inspect for fluid leakage. (Refer to BRAKE FLUID AIR BLEEDING .)
  6. Perform the following procedure to implement the DSC HU/CM automatic configuration.
    1. Switch the ignition ON (engine off) and wait for 10 s or more  .
    2. Switch the ignition off and wait for 3 s or more  .
    3. Switch the ignition ON (engine off) and wait for 3 s or more  .
    4. The automatic configuration procedure is completed.
  7. Perform the DSC related parts sensor initialization procedure (only when replacing it with a new one). (Refer to DSC RELATED PARTS SENSOR INITIALIZATION PROCEDURE .)
  8. Perform the TPMS initialization procedure. (Vehicles with TPMS) (Refer to TIRE PRESSURE MONITORING SYSTEM INITIALIZATION PROCEDURE .)
  9. Perform the Mazda Radar Cruise Control (MRCC) initialization setting. (Vehicles with Mazda Radar Cruise Control (MRCC)) (Refer to MRCC INITIALIZATION SETTING [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM] .)
  10. Clear the DTCs from the memory. (Refer to ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .)
    Fig 2: DSC HU/CM Related Components With Torque Specifications (1 Of 2)
    G10960802Courtesy of MAZDA MOTORS CORP.
    COMPONENT DESCRIPTION

    1 Connector
    (See Connector Removal Note .)
    (See Connector Installation Note .)
    2 Brake pipe
    (See Brake Pipe Removal Note .)
    (See Brake Pipe Installation Note .)
    3 Bolt
    4 Nut
    5 DSC HU/CM component
    Fig 3: DSC HU/CM Related Components With Torque Specifications (2 Of 2)
    G10960803Courtesy of MAZDA MOTORS CORP.
    COMPONENT DESCRIPTION

    1 Bolt
    2 DSC HU/CM
    3 Mount bolt
    4 Mount rubber
    5 Bracket
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