4E-3 ABS:
ABS Control Unit Calculating Process
The ABS controls and its calculations, in addition to the self-diagnosing and the fail-safe processes, occur during the
ABS control unit calculating process. ABS control is performed in one cycle every 10/1 000 seconds. In addition, if a
malfunction is detected by the self-diagnosis function, the brake stops being controlled by the ABS and a diagnostic
trouble code is stored.
Normal calculating process
Calculating process when a malfunction occurs
Ignition switch turned to ON
ABS control unit Initialization
Self-diagnosis (while riding)
Wheel speed sensor signal
enters
ABS control calculation
Hydraulic unit control signal
output
1 cycle
10/1 000 seconds
ABS indicator light
lights up
Is ABS under control ?
Diagnostic trouble code
memorized
Malfunction
indicated
Malfunction
indicated
No malfunction
Correct
Interim ABS control
YES
NO
Prohibition of ABS control
Self-diagnosis
(during start up)
I718H1450009-02
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