05-498010-01
Pin No.Message
Operating condition
Domestic Export
Winter mode
(SVC class)
Tire alignment
(applies to
vehicle with
EPS)
CAN scan(This message goes off when all the CAN signal inputs
are normal)
The message "SET WINTER MODE" is displayed
on the LCD display when the winter mode is
activated. The message "RELEASE WINTER
MODE" is displayed when it is deactivated.
The message "WINTER MODE" is displayed when
the vehicle starts off with the winter mode set. -
-
This message helps the driver to predict the driving
direction since the tire alignment is displayed on the
instrument cluster.
The images on the left show that the tires are
aligned to the left. When the tires are aligned to the
right, the image is symmetrical vertically.
Tire alignment is displayed between level 0 and
level 5 depending on the alignment degree when
the ignition switch is turned to "ON" position from
"OFF" position with the shift lever in "P" or "N"
position. While the images up to level 2 comes on
for 5 seconds, the images from level 3 stay on.
These messages are not displayed when the EPS
check message is displayed. -
-
-
-
Pin No. Message Operating condition
10-134890-00
2) Basic Theory of ABS Function
To give you a better understanding of the tasks and functions of ABS, we will first look at the physics
principles.
(1) Stopping distance
The stopping distance depends on the vehicle weight and initial speed when braking starts. This also
applies for vehicle with ABS, where ABS always tries to set an optimum brake force on each wheel. As
great forces are exerted between the tires and the carriageway when braking, even with ABS the wheels
may scream and rubber is left on the road. With an ABS skid mark one may be able to clearly recognize
the tire profile. The skid mark of an ABS vehicle does not however leave any hint of the speed of the
vehicle in the case of an accident, as it can only be clearly drawn at the start of braking.
(2) Brake force on a wheel
The maximum possible brake force on a wheel depends on the wheel load and the adhesion coefficient
between tire and carriageway. With a low adhesion coefficient the brake force, which can be obtained is
very low. You are bound to know the result already from driving on winter roads. With a high adhesion
coefficient on a dry road, the brake force, which can be obtained, is considerably higher. The brake
force, which can be obtained, can be calculated from below formula:
Maximum brake force ▶
FBmax = wheel load FR x coefficient of frictionMh
The braking process cannot be described sufficiently
accurately with the brake forces calculated. The
values calculated only apply if the wheel is not locked.
In the case of a locking wheel, the static friction turns
into lower sliding friction, with the result that the
stopping distance is increased. This loss of friction is
termed "slip" in specialist literature.
