Mazda 2007 CX-9, Service Highlights

Page: 192 / 614

DYNAMIC STABILITY CONTROL/ROLL STABILITY CONTROL
04-18–4
DSC/RSC CONSTRUCTION
id041800817800
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The dynamic stability control (DSC)/roll stability control (RSC) system consists of the following parts. While
each part has a regular function in other systems, only the function during DSC/RSC control is listed.
End Of Sie
Part name Function
DSC/RSC HU/CM
•
Makes calculations using input signals from each sensor, controls brake fluid pressure
to each wheel, and actuates each function (ABS, EBD, TCS, DSC and RSC) of the
DSC/RSC system.
•
Outputs the torque reduction request signal, vehicle speed signal and DSC/RSC
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/RSC system.
PCM
•
Controls engine output based on signals from the DSC/RSC HU/CM.
•
Transmits engine speed, tire and shift position data via CAN communication to the
DSC/RSC HU/CM.
TCM
•
Transmits gear/selector lever target position data via CAN communication to the DSC/
RSC HU/CM.
DSC indicator light
•
Informs the driver that the RSC is operating.
•
Informs the driver that the DSC is operating (vehicle sideslip occurring).
•
Informs the driver that the TCS is operating (drive wheel is spinning).
TCS OFF switch
•
Transmits driver intention to release engine TCS control to the DSC/RSC HU/CM.
TCS OFF light
•
Informs driver that engine TCS control has been released due to TCS OFF switch
operation.
ABS wheel-speed sensor
•
Detects the rotation condition of each wheel and transmits it to the DSC/RSC HU/CM.
Combined sensor
•
Detects the lateral-G (vehicle speed increase), forward-G (vehicle speed increase),
yaw rate (vehicle turning angle) and roll rate (vehicle rolling angle) of the vehicle and
transmits them to the DSC/RSC HU/CM.
Brake fluid pressure sensor
(Builtinto DSC/RSC HU/CM)
•
Detects the fluid pressure from the master cylinder and transmits it to the DSC/RSC
HU/CM.
BCM
•
Transmits the steering angle and steering angle sensor condition via CAN lines to the
DSC/RSC HU/CM.
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