Mazda RX-8 Manual page 1488

Warning lights that
may illuminate and/or
flash
ABS
•
warning light
BRAKE
•
system warning
light
DSC
•
indicator light
Brake
•
system warning
light
2. Precautions during servicing of DSC
The DSC is composed of electrical and mechanical parts. It is necessary to categorize malfunctions as
being either electrical or hydraulic when performing troubleshooting.
Condition under which the
light may illuminate
Under any of the following
conditions:
When the
•
front wheels are
jacked up, struck, or
placed on a chassis
roller, and only the
front wheel ABS
wheel speed sensors
are spun for 20 s or
more.
Parking brake is not fully
released while driving.
Brake drag.
Sudden
acceleration/deceleration.
Left/right or front/rear tires
are different. (Size, radius,
tire pressure, or wear is
other than that listed on tire
label.)
Battery voltage at DSC
HU/CM ignition terminal
drops below approx. 10 V.
Brake fluid amount is low.
Conditions
ABS, EBD, TCS and DSC
under which the
control
light will go out
•
•
After turning
ignition switch
off, vehicle is
driven at speed
greater than
10 km/h {6.2
mph} and
normal
operation is
confirmed.
•
•
ABS: Disables control.
Battery voltage EBD: Enables control.
rises above
TCS: Disables control.
approx. 10 V.
DSC: Disables control.
ABS: Enables control.
Brake fluid
EBD: Enables control.
level lower than
recommended
TCS: Enables control.
amount.
DSC: Enables control.
ABS: Disables
control.
EBD:
1. Disable
control, in cases
where the light
may illuminate,
only when ABS
HU/CM detects
that wheel speed
sensors determine
that two or more
wheels are
malfunctioning.
2. Enables
control, if wheel
speed sensors
determine three or
more wheels are
functioning
correctly.
TCS: Disables
control.
DSC: Disables
control.
(w) RX8 - Brakes
Page 74