System Diagram
System Description
When ABS actuator and electric unit (control unit) detects a spin at drive wheels, it compares wheel speed signals from all 4 wheels. At this time, LH and RH front brake fluid pressure are controlled, while fuel being cut to engine and throttle valve being closed to reduce engine torque by the control unit. Further more, throttle position is continuously controlled to ensure the optimum engine torque at all times.
Component Parts Location
Component Description
ABS branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the ABS actuator and
electric unit (control unit) for damage, bend
and loose connection (unit side and connector side).
...
Telescopic switch
Description
ADP steering switch (telescopic switch) is equipped to the steering column.
The operation signal is input to the automatic drive positioner control unit
when the telescopic switch is operated.
Component Function Check
1. CHECK FUNCTION
Select "TELESCO SW-FR", "TELESCO SW-RR" i ...
The braking distance is long
Diagnosis Procedure
CAUTION:
The stopping distance on slippery road surfaces might be longer with the ABS
operating than when
the ABS is not operating.
1.CHECK FUNCTION
Turn ignition switch OFF and disconnect ABS actuator and electric unit
(control unit) connector to deactivate
ABS. In ...