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HOMESERVICE MANUALSMAZDA2010CX-9 SPORT, 3.7 V, AWDREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLDYNAMIC STABILITY CONTROL SYSTEM/ROLL STABILITY CONTROL SYSTEMDSC/RSC SYSTEM INSPECTIONDSC CONTROL INSPECTION
2010 Mazda CX-9 Sport, 3.7 V, AWD

DSC Control Inspection

2010 Mazda CX-9 Sport, 3.7 V, AWDSECTION DSC Control Inspection
  1. Perform "Preparation".
  2. Connect the M-MDS to the DLC-2.
  3. Set up an active command mode inspection according to the combination of commands below.
    CAUTION:
    • To protect the DSC/RSC 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 Location
      G04969748Courtesy of MAZDA MOTORS CORP.
    WHEELS INSPECTION CHART

    Command name Inspected wheels
    Understeer control inhibited Oversteer control inhibited
    LF RF LR RR
    V_TRC_L ON OFF ON
    V_TRC_R OFF ON OFF
    V_STB_L OFF
    V_STB_R
    V_LF_INL OFF OFF OFF ON
    V_LF_OTL OFF
    V_LR_INL ON
    V_LR_OTL OFF
    V_RF_INL ON
    V_RF_OTL OFF
    V_RR_INL ON
    V_RR_OTL 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/RSC HU/CM operation click sound is heard.
    • Performing the inspection above determines the following:
      • The DSC/RSC HU/CM brake lines are normal.
      • The DSC/RSC HU/CM hydraulic system is not significantly abnormal (including DSC/RSC HU/CM).
      • The DSC/RSC HU/CM internal electrical parts (solenoid, motor and other parts) are normal.
      • The DSC/RSC unit and DSC/RSC 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/RSC HU/CM input system wiring harnesses and parts
      • Extremely small leaks in the DSC/RSC HU/CM internal hydraulic system
RENDER: 1.0x

NO RELATED

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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.