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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 638 (DYNAMIC STABILITY CONTROL SYSTEM)DSC SYSTEM INSPECTIONDSC CONTROL INSPECTION
2008 Mazda 6 s Sport, 4D Hatchback, Standard

DSC Control Inspection

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION DSC Control Inspection
WARNING: This page is about a different car, the 2008 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform "Preparation".
  2. Connect the M-MDS or equivalent to the DLC-2.
  3. Set up an active command mode inspection according to the combination of commands below.
    CAUTION:
    • To protect the DSC HU/CM, the solenoid valve and the pump motor used during active command mode stay on for only 10 s or less each time they are switched on. 
      Fig 1: Identifying DLC-2 Connector
      G04563321Courtesy of MAZDA MOTORS CORP.
    DSC CONTROL INSPECTION REFERENCE

    Command name Inspected wheels
    Understeer control inhibited Oversteer control inhibited
    LF RF LR RR
    LF_TC_VLV ON OFF ON
    RF_TC_VLV OFF ON OFF
    LF_DSC_V OFF
    RF_DSC_V
    LF_INLET OFF OFF OFF ON
    LF_OUTLET OFF
    LR_INLET ON
    LR_OUTLET OFF
    RF_INLET ON
    RF_OUTLET OFF
    RR_INLET ON
    RR_OUTLET OFF
    PMP_MOTOR ON
  4. Send the command while rotating the wheel being inspected by hand in a forward direction.
  5. Confirm that the wheel does not rotate easily while a DSC HU/CM operation click sound is heard.
    • Performing the inspection above determines the following:
      • The DSC HU/CM brake lines are normal.
      • The DSC HU/CM hydraulic system is not significantly abnormal (including DSC HU/CM).
      • The DSC HU/CM internal electrical parts (solenoid, motor and other parts) are normal.
      • The DSC unit and DSC HU/CM output system wiring harnesses (solenoid valve, relay system) are normal.
    • However, the following items cannot be verified.
      • Malfunction with intermittent occurrence of the above items
      • Malfunction of DSC HU/CM input system wiring harnesses and parts
      • Extremely small leaks in the DSC HU/CM internal hydraulic system
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.