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. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.5].)
2. Remove the bracket.
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. (See BRAKE FLUID AIR BLEEDING.)
6. Perform the following procedure to implement the DSC HU/CM automatic configuration.a. Switch the ignition ON (engine off) and wait for 10 s or more.b. Switch the ignition off and wait for 3 s or more.c. Switch the ignition ON (engine off) and wait for 3 s or more.d. The automatic configuration procedure is completed.
7. Perform the DSC related parts sensor initialization procedure (only when replacing it with a new one). (See DSC RELATED PARTS SENSOR INITIALIZATION PROCEDURE.)
8. Perform the TPMS initialization procedure. (Vehicles with TPMS) (See TIRE PRESSURE MONITORING SYSTEM INITIALIZATION PROCEDURE.)
9. Perform the MRCC initialization setting. (See MRCC INITIALIZATION SETTING [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM].)
10. Clear the DTCs from the memory. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)
Vehicles without Mazda Radar Cruise Control (MRCC) system and Smart City Brake Support (SCBS)
| 1 | Connector (See Connector Removal Note.) (See Connector Installation Note.) |
| 2 | Brake pipe (See Brake Pipe Removal Note.) (See Brake Pipe Installation Note.) |
| 3 | Nut |
| 4 | Bolt |
| 5 | DSC HU/CM component |
| 6 | Bolt |
| 7 | DSC HU/CM |
| 8 | Bracket |
Vehicles with Mazda Radar Cruise Control (MRCC) system or Smart City Brake Support (SCBS)
| 1 | Connector (See Connector Removal Note.) (See Connector Installation Note.) |
| 2 | Brake pipe (See Brake Pipe Removal Note.) (See Brake Pipe Installation Note.) |
| 3 | Nut |
| 4 | Bolt |
| 5 | DSC HU/CM component |
| 6 | Bolt |
| 7 | DSC HU/CM |
| 8 | Bracket |
CAUTION:
If sand or other particles get into the connector, it may be difficult to remove. To prevent damaging the connector, be careful not to use excessive force when disconnecting it.
1. Disconnect the connector in the order shown in the figure.
1. Place an alignment mark on the brake pipe and DSC HU/CM.
2. Apply protective tape to the connector to prevent brake fluid from entering.
3. Disconnect the brake pipes.
1. Align the marks made before removal and install the brake pipe to the DSC HU/CM and brake pipe joint referring to the figure.Vehicles without Mazda Radar Cruise Control (MRCC) system and Smart City Brake Support (SCBS)
Vehicles with Mazda Radar Cruise Control (MRCC) system or Smart City Brake Support (SCBS)
2. Tighten the brake pipe to the specified torque using the commercially available flare nut wrench.
1. Connect the connector in the order shown in the figure.
2. After connecting the connector, verify that the connector is completely locked.