Mazda RX-8 2004 Service Highlights page 242

04-15 DYNAMIC STABILITY CONTROL
DYNAMIC STABILITY CONTROL (DSC)
OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 04-15-1
DSC Operation Outline . . . . . . . . . . . . 04-15-2
DYNAMIC STABILITY CONTROL (DSC)
STRUCTURAL VIEW . . . . . . . . . . . . . . 04-15-3
DYNAMIC STABILITY CONTROL (DSC)
CONSTRUCTION . . . . . . . . . . . . . . . . . 04-15-3
DYNAMIC STABILITY CONTROL (DSC)
SYSTEM WIRING DIAGRAM . . . . . . . . 04-15-4
DSC HU/CM CONSTRUCTION. . . . . . . . 04-15-5
DSC HU PART FUNCTION . . . . . . . . . . . 04-15-5
DSC HU PART CONSTRUCTION/
OPERATION . . . . . . . . . . . . . . . . . . . . . 04-15-5
Construction. . . . . . . . . . . . . . . . . . . . . 04-15-5
Operation . . . . . . . . . . . . . . . . . . . . . . . 04-15-7
DSC CM PART FUNCTION. . . . . . . . . . . 04-15-11
Function Table . . . . . . . . . . . . . . . . . . . 04-15-11
Block Diagram . . . . . . . . . . . . . . . . . . . 04-15-12
ABS CONTROL FUNCTION . . . . . . . . . . 04-15-12
EBD CONTROL FUNCTION . . . . . . . . . . 04-15-12
TCS CONTROL OUTLINE . . . . . . . . . . . 04-15-13
Features. . . . . . . . . . . . . . . . . . . . . . . . 04-15-13
Block Diagram . . . . . . . . . . . . . . . . . . . 04-15-13
TCS CONTROL OPERATION. . . . . . . . . 04-15-13
DSC CONTROL OUTLINE . . . . . . . . . . . 04-15-14
Vehicle Condition Determination . . . . . 04-15-14
Oversteer Tendency Determination . . . 04-15-14
Understeer Tendency Determination . . 04-15-14
DSC CONTROL OPERATION . . . . . . . . 04-15-15
End of Toc
DYNAMIC STABILITY CONTROL (DSC) OUTLINE
• The DSC HU/CM, integrating both the hydraulic unit (HU) and control module (CM), has been adopted,
resulting in a size and weight reduction.
• A combined sensor, integrating both the yaw rate sensor and lateral-G sensor, has been adopted, improving
serviceability.
• The controller area network (CAN) system has been adopted for the steering angle sensor, improving
serviceability and reliability.
• An enhanced malfunction diagnosis system, used with the WDS, has been adopted, improving serviceability.
DYNAMIC STABILITY CONTROL
CONTROLLER AREA NETWORK (CAN)
ABS WHEEL-SPEED SENSOR
ABS WHEEL-SPEED SENSOR
COMBINED SENSOR FUNCTION . . . . . . 04-15-17
COMBINED SENSOR CONSTRUCTION/
BRAKE FLUID PRESSURE SENSOR
BRAKE FLUID PRESSURE SENSOR
STEERING ANGLE SENSOR
STEERING ANGLE SENSOR
DSC INDICATOR LIGHT FUNCTION . . . 04-15-18
DSC INDICATOR LIGHT OPERATION . . 04-15-18
DSC OFF SWITCH, DSC OFF LIGHT
DSC OFF SWITCH, DSC OFF LIGHT
Oversteer Tendency Suppression. . . . . 04-15-15
Understeer Tendency Suppression. . . . 04-15-15
OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 04-15-16
Data sent. . . . . . . . . . . . . . . . . . . . . . . . 04-15-16
Data received . . . . . . . . . . . . . . . . . . . . 04-15-16
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 04-15-16
CONSTRUCTION/OPERATION . . . . . . . 04-15-16
OPERATION . . . . . . . . . . . . . . . . . . . . . . 04-15-17
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 04-15-17
CONSTRUCTION . . . . . . . . . . . . . . . . . . 04-15-17
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 04-15-18
CONSTRUCTION . . . . . . . . . . . . . . . . . . 04-15-18
DSC Indicator Light Operation . . . . . . . 04-15-19
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 04-15-19
OPERATION . . . . . . . . . . . . . . . . . . . . . . 04-15-19
04-15
CHU041543000S01
04-15-1