Dsc Hu/Cm Construction; Dsc Hu Part Function; Dsc Hu Part Construction/Operation - Mazda RX-8 2004 Service Highlights

DSC HU/CM CONSTRUCTION

• A high reliability, reduced size and weight DSC
HU/CM, integrating both the DSC HU and the
DSC CM, has been adopted.
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DSC HU PART FUNCTION

• According to DSC CM signals, the DSC HU controls (on/off) each solenoid valve and the pump motor, adjusts
fluid pressure in each caliper piston, and actuates each function (ABS, EBD (Electronic Brakeforce
Distribution), TCS and DSC) of the DSC system.
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DSC HU PART CONSTRUCTION/OPERATION

Construction
Function Of Main Component Parts
Part name
Inlet solenoid valve
Outlet solenoid valve
Stability control solenoid valve
Traction switch solenoid valve
Reserve
Pump
Pump motor
DYNAMIC STABILITY CONTROL
• Adjusts the fluid pressure in each brake system according to DSC HU/CM
signals.
• Adjusts the fluid pressure in each brake system according to DSC HU/CM
signals.
• Switches the brake hydraulic circuits during and according to normal braking,
ABS and EBD control, TCS control and DSC control.
• Switches the brake hydraulic circuits during and according to normal braking,
ABS and EBD control, TCS control and DSC control.
• Temporarily stores brake fluid from the caliper piston to ensure smooth
pressure reduction during ABS and EBD control, TCS control and DSC control.
• Returns the brake fluid stored in the reservoir to the master cylinder during ABS
and DSC control.
• Increases brake fluid pressure and sends brake fluid to each caliper piston
during TCS control and DSC control.
• Operates the pump according to DSC HU/CM signals.
Function
CHU041543750S01
BHJ0415N003
04–15
CHU041543750S02
CHU041543750S03
04–15–5