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DSC HU/Cm Removal/Installation: Notes

CAUTION:
  • When replacing the DSC HU/CM, the configuration procedure must be done before removing the DSC HU/CM. If the configuration is not completed before removing the DSC HU/CM, DSC will not work properly after installation of the DSC HU/CM.
  • 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.
  1. Remove the following parts:
    1. Windshield wiper arm and blade (See WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION .)
    2. Cowl grille (See COWL GRILLE REMOVAL/INSTALLATION .)
    3. Windshield wiper motor (See WINDSHIELD WIPER MOTOR REMOVAL/INSTALLATION .)
    4. Cowl panel (See COWL PANEL REMOVAL/INSTALLATION .)
  2. Disconnect the brake pipes (master cylinder side). (See MASTER CYLINDER REMOVAL/INSTALLATION .)
  3. For the vehicles with MZI 3.7 V6, perform the following steps.
    1. Remove the power steering reserve tank component. (See POWER STEERING OIL PUMP REMOVAL/INSTALLATION [MZI 3.7 V6] .)
    2. Disconnect the OCV connector. (See OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZI 3.7 V6] .)
    3. Disconnect the ignition coil connector. (See IGNITION COIL REMOVAL/INSTALLATION [MZI 3.7 V6] .)
    4. Disconnect the HO2S (RH) connector. (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [MZI 3.7 V6] .)
    5. Disconnect the pressure switch connector. (See POWER STEERING OIL PUMP REMOVAL/INSTALLATION [MZI 3.7 V6] .)
    6. Disconnect the wiring harness from the wiring harness bracket as shown in the illustration.
    7. Set the wiring harness out of the way.
  4. Remove in the order indicated in the table.
  5. Install in the reverse order of removal.
  6. Add brake fluid, bleed the brakes, and inspect for leakage after the installation has been completed. (See BRAKE FLUID AIR BLEEDING .)
  7. Configure the DSC HU/CM (only when replacing it). (See DSC CONFIGURATION .)
  8. Clear the DTCs from the memory. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .)
Fig 1: Wiring Harness And Wiring Harness Bracket
G07621170Courtesy of MAZDA MOTORS CORP.
Fig 2: DSC HU/CM, Connector, Brake Pipe, Nut And Bolts With Torque Specification
G07621171Courtesy of MAZDA MOTORS CORP.
PARTS DESCRIPTION CHART

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 Bolt
6 DSC HU/CM
(See DSC HU/CM REMOVAL NOTE .)
(See DSC HU/CM INSTALLATION NOTE .)
7 Bolt
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