Chevrolet Captiva CN202SR, Owner'S Manual

Page: 137 / 197

Driving and operation 133
Electric Brake Force
Distribution (EBD) System
The EBD system uses the high-speed
computer to respectively induce and
calculate different ground to which
four wheels are attached, and thus
calculate different friction values at the
moment
the vehicle brakes.
Therefore, four wheels can be able to
brake in different ways and force
based on different conditions, and can
be adjusted fast during movement, so
as to ensure that the vehicle is stable
and safe.
Electronic Stability Control
(ESC) System
The ESC system is a new-type active
safety
system, representing the
further development of the functions
of anti-lock brake system (ABS) and
traction control system (TCS). In
addition, the yaw rate sensor, lateral
acceleration sensor and steering
wheel turn angle sensor are added.
The driving force and braking force of
front and rear, left and right wheels are
controlled through the ECU, which
ensures the lateral stability of the
vehicle. When the driver operates the
vehicle beyond the limit values, in case
of turning at high speed, the ESC
system automatically intervenes to
ensure that the vehicle returns to be
controllable and ensure the safety.
Indicators relevant to the ESC system
consist of ABS MIL, EBD MIL, ESC MIL
and ESC OFF indicator.
1. Indicators illuminate for self-check
when the ignition switch is
connected. The 4 indicators are
normally on for 3s, indicating that
the ESC system is conducting self-
check and indicators work normally.
The 4 indicators go out 3s later
under the normal condition. When
faults
(such as neglected
installation, loosened connector,
abnormal
CAN communication)
exist on the ESC system, only the
ESC OFF lamp will go out 3s later,
and other 3 lamps are normally on.
2. In the process of driving the vehicle,
if the ESC function is activated, the
ESC lamp will flicker, telling the
Owner that the ESC system is
working.
If the ESC system
functions abnormally but the
ABS+EBD system functions
normally, the ESC lamp is
normally on, indicating that the
ESC system gets faulted. If the
ESC system and the ABS function
abnormally and the EBD system
functions normally, the ESC lamp
and the ABS lamp are normally
on. If the ESC system, the ABS
and the EBD system function
abnormally, the ESC lamp, the
ABS lamp and the EBD lamp are
normally on.
3. The ESC OFF lamp is used to
indicate that the ESC function is
disabled (the lamp will be normally
on so long as the ESC function is
disabled; the lamp will go out if the
function is enabled). If the Owner
presses the ESC OFF switch,
some ESC functions will be
disabled, and the ESC OFF lamp
illuminates. When the switch is
pressed, the ESC system is
working, and the ESC function will
not be disabled immediately and
will be disabled after the work is
over. If the Owner presses the
ESC switch again, all functions