Subaru IMPREZA 2002 Owner's Manual page 253

Starting and operating
CAUTION
If the warning light behaves as follows, the
ABS system may not be working properly.
When the warning light is on, the ABS func-
tion shuts down; however, the conventional
brake system continues to operate normally.
D The warning light does not come on when
the ignition switch is turned to the " ON" posi-
tion.
D The warning light comes on when the igni-
tion switch is turned to the " ON" position, but
it does not go out even when the vehicle
speed exceeds approximately 8 mph (12
km/h).
D The warning light comes on during driving.
If these occur, have the ABS system repaired
at the first available opportunity by your
SUBARU dealer.
NOTE
If the warning light behavior is as described
below, the ABS system may be considered nor-
mal.
D The warning light comes on right after the
engine is started but goes out immediately,
remaining off.
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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 km/h).
D The warning light comes on during driving, but
it goes out immediately and remains off.