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Abs HU/Cm Removal/Installation: Notes

CAUTION:
  • The internal parts of the ABS HU/CM could be damaged if dropped. Be careful not to drop the ABS HU/CM. Replace the ABS HU/CM if it is subjected to an impact.
  • Do not separate the ABS HU and ABS CM unless replacing them, otherwise the ABS HU/CM may not function properly. When replacing them with new ones, always perform procedures according to the instructions included with the new parts.
  • If the ABS HU/CM configuration is not completed, it could result in an unexpected accident due to the ABS being inoperative. If the ABS HU/CM or ABS CM is replaced, always use the automatic configuration function so that the ABS operation conditions are correct.
NOTE:
  • When the ignition is switched to ON or the engine is started after the ABS HU/CM or ABS CM has been replaced, the ABS CM reads data from the instrument cluster via CAN communication to perform automatic configuration.
  1. Remove the battery and battery tray. (See BATTERY REMOVAL/INSTALLATION [LF, L5] ).
  2. Remove in the order indicated in the table.
  3. Install in the reverse order of removal.
  4. Switch the ignition to ON or start the engine, and maintain this condition for approx. 30 s  to allow the ABS HU/CM automatic configuration to be performed.
  5. Clear the DTCs from the memory. (See ON-BOARD DIAGNOSIS [ABS] ).
    Fig 1: Exploded View Of ABS HU/CM With Torque Specifications
    G07874333Courtesy of MAZDA MOTORS CORP.