Dynamic Stability Control (Dsc) Structural View; Dynamic Stability Control (Dsc) Construction - Mazda RX-8 2004 Service Highlights

DYNAMIC STABILITY CONTROL (DSC) STRUCTURAL VIEW

BRAKE SYSTEM
WARNING LIGHT
ABS WARNING
LIGHT
PCM
DSC HU/CM
BRAKE FLUID
PRESSURE SENSOR
FRONT ABS WHEEL-SPEED SENSOR/
ABS SENSOR ROTOR
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DYNAMIC STABILITY CONTROL (DSC) CONSTRUCTION

• The DSC system consists of the following parts. While each part has a regular function in other systems, only
the function during DSC control is listed.
Part name
DSC HU/CM
PCM
TCM (AT)
DSC indicator light
DSC OFF switch
DSC OFF light
Wheel speed sensor
Combined sensor
Brake fluid pressure sensor
Steering angle sensor
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DYNAMIC STABILITY CONTROL
DSC INDICATOR LIGHT
STEERING ANGLE
SENSOR
DSC OFF LIGHT
• Makes calculations using input signals from each sensor, controls brake fluid pressure
to each wheel, and actuates each function (ABS, EBD, TCS and DSC) of the DSC
system.
• Outputs the vehicle speed signal to the car-navigation unit.
• Outputs the torque reduction request signal, vehicle speed signal and DSC system
warning control data via CAN lines.
• Controls the on-board diagnostic system and fail-safe function when there is a
malfunction in the DSC system.
• Controls engine output based on signals from the DSC HU/CM.
• Transmits engine speed, tire and shift position data via CAN communication to the
DSC HU/CM.
• Transmits gear/selector lever target position data via CAN communication to the DSC
HU/CM.
• Informs the driver that the DSC is operating (vehicle sideslip occurring).
• Informs the driver that the TCS is operating (drive wheel is spinning).
• Transmits driver intention to release DSC control to the DSC HU/CM.
• Informs driver that DSC control has been released due to DSC OFF switch operation.
• Detects the rotation condition of each wheel and transmits it to the DSC HU/CM.
• Detects the lateral-G (vehicle speed increase) and the yaw rate (vehicle turning angle)
of the vehicle and transmits them to the DSC HU/CM.
• Detects the fluid pressure from the master cylinder and transmits it to the DSC HU/CM.
• Transmits the steering angle and steering angle sensor condition via CAN lines to the
DSC HU/CM.
COMBINED
SENSOR
REAR ABS SENSOR ROTOR
DSC OFF SWITCH
TCM
Function
CHU041543000S02
REAR ABS
WHEEL-SPEED SENSOR
CHU0415S002
CHU041543000S03
04–15–3
04–15