DSC/RSC OUTLINE

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• The dynamic stability control (DSC)/roll stability control (RSC) HU/CM, integrating both the hydraulic unit (HU) and control module (CM), has been adopted, resulting in a size and weight reduction.
• An enhanced malfunction diagnosis system, used with the Mazda Modular Diagnostic System (M-MDS), has been adopted, improving serviceability.
• A sophisticated air bag sensor (SAS) control module, integrating both the yaw rate sensor, roll rate sensor and low-G (XY) sensor, has been adopted, improving reliability.
• The specialized controller area network (CAN) system has been adopted for use between the SAS control module and DSC/RSC HU/CM, improving reliability.

RSC Operation Outline

• The dynamic stability control (DSC)/roll stability control (RSC) system monitors the signal from the roll rate sensor and each sensor, and calculates if the vehicle may be approaching a situation where rollover is probable. When this occurs, the DSC/RSC system applies preemptive action.

DSC Operation Outline

• The antilock brake system (ABS) prevents wheel lock-up during braking. The traction control system (TCS) detects drive wheel spin due to the accelerator pedal being pressed too hard or similar causes and controls engine speed to suppress wheel spin. With these systems, safety is assured when driving or stopping.
• Additionally, sudden changes in vehicle attitude, due to evasive steering or road conditions, are controlled by the DSC. The DSC suppresses vehicle sideslip when driving due to vehicle spin (oversteer) or drift-out (understeer) by controlling braking and engine speed. At this time, the DSC indicator light illuminates to alert the driver that the DSC is operating due to a dangerous situation. As a result, the driver can calmly react and is provided leeway for the next maneuver, resulting in safe driving conditions.
• In this way the combination of DSC + ABS + TCS ensures driving, stopping and turning safety in all aspects.

Results Of DSC Operation

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  Caution
  • While the DSC is a steering safety system, it does not improve normal steering function. Therefore, always drive carefully, even if the vehicle has DSC, and do not overestimate the DSC capability.
  • The DSC and ABS will not operate normally under the following conditions:
    ― With tires that are not of the specified size, manufacturer or tread pattern, or not inflated according to specification
    ― With tires that have significant comparative wear variation
    ― With tire chains