Subaru LEGACY 2003 Service Manual page 19

3. CONDITIONS FOR ABS SEQUENCE CONTROL
Speed of all wheels
Terminal No. 5 and No. 8
Ignition key switch
ABS warning light
Operational
guide line of
VDC warning light
sequence
VDC. OFF indicator light
control
VDC operation indicator light
Pressure sensor signal
AET
AEB
AEC
EAM
Valve relay
Secondary cut valve
Primary cut valve
Operational Secondary suction valve
pattern of
Primary suction valve
sequence
control
FL outlet valve
FL inlet valve
FR outlet valve
FR inlet valve
RR outlet valve
RR inlet valve
RL outlet valve
RL inlet valve
Pump motor
Pressure of master cylinder
Operational
Pressure of FL wheel cylinder
pressure of
Pressure of FR wheel cylinder
sequence
control
Pressure of RR wheel cylinder
Pressure of RL wheel cylinder
NOTE:
• When select monitor is used, control operation starts at point A. The patterns from IGN key ON to the point
A show that operation is started by diagnosis connector.
• HIGH means high voltage.
• LOW means low voltage.
ABS SEQUENCE CONTROL
2.75 km/h (2 MPH) or less
LOW
OFF ON
1.5s 1.5s
Point A
OFF LIGHT
Within 0.5s
OFF LIGHT
OFF
OFF
OFF
LOW HIGH
LOW HIGH
LOW HIGH
OFF ON
OFF ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
VDC-17
10 km/h (6 MPH) or less
1.4s
1s
LIGHT
ON
0.4s 1s
ON
ON
ON
ON
ON
1.0s 1.4s 0.6s
ON
ON
ON
ON
VDC00086
VDC