Hydraulic Control Assembly - Antilock Brakes: Service and Repair

DSC HU/CM REMOVAL/INSTALLATION

CAUTION:
- Always use the adapter that comes with a new DSC HU or DSC CM when separating the DSC HU or DSC CM. Otherwise, the pump motor may come off the DSC HU and be damaged. Therefore, do not separate the DSC HU and DSC CM unless replacing them. When replacing them with new ones, always perform procedures according to the instructions included with the new parts.
- 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.
- 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 or DSC CM is replaced, always use the automatic configuration function so that the DSC operation conditions are correct.
- If the DSC sensor initialization procedure is not completed, the DSC will not operate properly and it might cause an unexpected accident. Therefore, after replacing or removing the DSC HU/CM, make sure to perform the DSC sensor initialization procedure to insure proper DSC operation.

NOTE:
- When the ignition is switched to ON or the engine is started after the DSC HU/CM or DSC CM has been replaced, the DSC CM reads data from the instrument cluster via CAN communication to perform automatic configuration.

1. Remove the installation nut for the cooler hose (LO) bracket and set the cooler hose (LO) aside. Service and Repair






2. Remove in the order indicated in the table.

3. Install in the reverse order of removal.

4. Add brake fluid, bleed the brakes, and inspect for leakage after the installation has been completed. Service and Repair

5. Switch the ignition to ON or start the engine, and maintain this condition for approx. 30 s to allow the DSC HU/CM automatic configuration to be performed.

6. Perform the DSC sensor initialization procedures. Programming and Relearning

7. Perform the DTC inspection using the M-MDS. On-Board Diagnosis

















Connector Removal Note

1. Pull the connector cover up in the direction of the arrow while pressing the connector cover tab.






2. Pull the connector toward the vehicle left ward and remove it.

CAUTION:
- If sand or other particles get into the connector cover, it may be difficult to remove. In order not to damage the connector, be careful not to use excessive force removing the cover.

Brake Pipe Removal Note

1. Place an alignment mark on the brake pipe and DSC HU/CM.






2. Affix protective tape to the connector to prevent brake fluid from entering.

3. Remove the brake pipe.

4. Adhere protective tape to the installation area of the DSC HU/CM brake pipe to prevent foreign material penetration.

Brake Pipe Installation Note

1. Align the marks made before removal and install the brake pipe into the DSC HU/CM referring to the figure.






Connector Installation Note

1. After connecting the connector, verify that the connector cover is completely pushed in.