ABS MOTOR RELAY CONTROL
When a drive signal is output from the ABS-ECU
to any of the solenoid valves, the motor relay is
ABS VALVE RELAY CONTROL
If the system is found O.K. after an initial check,
the ABS valve relay is placed in the "ON" state
START
Ignition ON
switch
ACC,
LOCK
ABS Warning Light Control
Approx. 1
second
In the following cases the ABS warning light lights up.
If lights up when trouble in the system is recognized.
l
It illuminates in the pattern shown in the figure on the
l
left when the ignition switch is turned ON, to check the
ABS warning light circuit.
placed in the ON state to operate the pump motor.
to supply power to the solenoid valves of the HU
to prepare for operation of ABS.