Suzuki 2009 AN400, Supplementary Service Manual

Page: 45 / 143

ABS: 4E-3
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
inmotion)
Wheel speed sensor signal
enters
ABS control processing
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)
I718H1450009-03