Subaru 1998 Legacy Owner's Manual page 249

B ABS warning light
HB0273
The ABS warning light comes on when the ignition switch is turned to
the "ON" position and goes out after about two seconds.
This is an indication that the ABS system is working properly.
If the warning light behaves as follows, ABS system may not work
properly.
D The warning light does not come on when the ignition switch is
turned to the "ON" position.
D The warning light comes on when the ignition switch is turned to
the "ON" position, but it does not go out even when the vehicle speed
exceeds approximately 8mph (12km/h).
D The warning light comes on during driving.
When the warning light is on, the ABS function shuts down; however,
the conventional brake system continues to operate normally. If this
occurs, have the ABS system repaired at the first available opportuni-
ty by your SUBARU dealer.
NOTE
If the warning light behavior is as shown below, the ABS system may
be considered normal.
D The warning light comes on when the ignition switch is turned to
the "ON" position but goes out immediately, remaining off.
D The warning light remains on after the engine has been started,
but it goes out when the vehicle speed reaches about 8 mph (12
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