DRIVE-CONTROL COMPONENTS - ABS
3-53
Control with G-sensor
and a high frictional resistance road and makes
Since four wheels are connected in AWD models,
the ABS control reliable by switching the method
Lthe four wheels may decelerate almost in phase.
This tendency is especially strong on a low frictionalof calculating suspected vehicle speed.
resistance road; suspected vehicle speed does not
* When braking on a low frictional resistance road,
match actual speed, the road is judged to be a
the rate of vehicle deceleration is slow. On the’
high frictional resistance road and the ABS control
becomes unreliable. At such a time, the G-sensor other hand, when braking on a high frictional
distinguishes* between low frictional resistance road resistance road, the rate of vehicle deceleration
is fast.
ABS Warning Light Control
Warning Approx. Approx. In the following cases the ABS warning light lights up.
light 1 sec. 1 sec. l It lights up when trouble in the system is recognized.
- l It illuminates in the pattern shown in the figure on the
left when the ignition switch is turned ON, to check the
ABS warning light circuit.
14X0120