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DSC HU/Control Module REMOVAL/INSTALLATION [L.H.D. (E)]: Notes

Oil and Chemical Type 

Brake fluid type
Type: SAE J1703 or FMVSS116 DOT-3 or DOT-4
CAUTION:
  • When replacing the DSC HU/Control Module, perform the configuration to assure that the system operates correctly. (See CONFIGURATION .)
  • The internal parts of the DSC HU/Control Module could be damaged if dropped. Be careful not to drop the DSC HU/Control Module. Replace the DSC HU/Control Module if it is subjected to an impact.
  • Brake fluid will damage painted surfaces. Be careful not to spill any on painted surfaces. In addition, if there is any brake fluid on the wiring harness, the wire insulation may corrode causing a malfunction such as a short circuit. If brake fluid gets on a painted surface or wiring harness, wash and flush it off completely with water immediately.
NOTE:
  • After replacing the DSC HU/Control Module and performing an operation/release of the electric parking brake, the DSC HU/Control Module performs a check of the related parts, and records the operation/release condition of the electric parking brake.
  • Tighten the brake pipe flare nut using any commercially available flare nut wrench.
  1. To replace the DSC HU/Control Module, perform the following procedure.
    1. Connect the M-MDS to the DLC-2.
    2. Switch the ignition ON (engine off).
    3. Activate the M-MDS and perform the following procedure.
      1. Press [Start] to start the vehicle identification.
      2. Press the [Toolbox] tab.
      3. Press the [Work Support] icon.
      4. Press [Configuration].
      5. Press [Run] to perform the configuration.
      6. Press [DSC].
      7. When [Install the new ECU] is displayed, move to the DSC HU/Control Module replacement procedure.
  2. Disconnect the negative battery terminal.
  3. 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 and link (See WINDSHIELD WIPER MOTOR AND LINK REMOVAL/INSTALLATION .)
    4. Side cowl grille (See COWL GRILLE REMOVAL/INSTALLATION .)
    5. Cowl panel
  4. Remove the insulator.
    G13176276Courtesy of MAZDA MOTORS CORP.
  5. Remove in the order indicated in the table.
  6. Install in the reverse order of removal.
  7. After installation, add brake fluid, bleed the air, and inspect for fluid leakage.
  8. If the DSC HU/Control Module is replaced, perform the following procedure.
    1. Return to the M-MDS operation and press [Continue].
    2. When the M-MDS processing is completed, press [Next].
    3. When the M-MDS processing is completed, press [Next].
    4. Verify that the following conditions/operations are met/completed, mark the check boxes, and then press [Next].
      • Ignition is switched ON (engine off)
      • Install battery charger to vehicle
      • Battery voltage: 11. 6 V or more
      • Connect power cable to M-MDS
      • Front doors on both sides and trunk lid (4SD) or liftgate (5HB) are open
    5. Press [Finish].
    6. Switch the ignition OFF.
    7. Switch the ignition ON (engine off) to complete global central configuration (GCC) for the DSC HU/Control Module.
    8. Clear the DTC. (See CLEARING DTC .)
    9. Perform the sensor initialization for the DSC-related parts.
    10. Operate the electric parking brake switch using the following procedure to verify the operation of the electric parking brake and perform the automatic adjustment.
      1. Switch the ignition ON (engine off).
      2. Operate the electric parking brake.
        • If the electric parking brake cannot be operated, release it once and then try to re-operate it.
          • If the electric parking brake cannot be operated/released, perform a DTC inspection as a malfunction of the electric parking brake may have occurred. (See DTC INSPECTION .)
      3. Verify that the electric parking brake indicator light turns on and the brake control system warning light turns off.
        G14580947Courtesy of MAZDA MOTORS CORP.
        • If the electric parking brake indicator light does not turn on, the electric parking brake indicator light flashes, or the brake control system warning light does not turn off, perform a DTC inspection as a malfunction of the electric parking brake may have occurred. (See DTC INSPECTION .)
      4. Release the electric parking brake.
      5. Verify that the electric parking brake indicator light and the brake control system warning light turn off.
        • If the electric parking brake indicator light and the brake control system warning light do not turn off, perform a DTC inspection as a malfunction of the electric parking brake may have occurred. (See DTC INSPECTION .)
      6. Operate the electric parking brake.
    11. Clear the DTC. (See CLEARING DTC .)
    12. Verify that the following warning/indicator lights turn off.
      • Brake system warning light
      • ABS warning light
      • TCS/DSC indicator light
      • DSC OFF indicator light
      • Brake control system warning light
      G14580948Courtesy of MAZDA MOTORS CORP.
      • If the warning/indicator lights do not turn off, perform a DTC inspection. (See DTC INSPECTION .)
  1. Step 1 
    Fig 1: DSC HU/Control Module Components With Torque Specification - Step 1
    G14580949Courtesy of MAZDA MOTORS CORP.
    PART DESCRIPTION

    Component no. Refer to
    1 DSC HU/Control Module connector
    (See DSC HU/Control Module CONNECTOR REMOVAL NOTE .) (See DSC HU/Control Module Connector Installation Note .)
    2 Brake pipe
    (See Brake Pipe Removal Note  .) (See Brake Pipe Installation Note .)
    3 Nut
    (See Nuts Installation Note .)
    4 DSC HU/Control Module component
  2. Step 2 
    Fig 2: DSC HU/Control Module Components With Torque Specification - Step 2
    G14580950Courtesy of MAZDA MOTORS CORP.
    PART DESCRIPTION

    Component no. Refer to
    1 Nut
    2 Bolt
    3 DSC HU/Control Module
    4 Bracket
    5 Spacer
    6 Mount rubber
    7 Bracket
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