Subaru 2004 Impreza - Manual (Page 160)

3-23
Instruments and controls
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tires are not all the same size and brand, the rear
differential will be heavily loaded when the vehicle
is driven, resulting in an abnormally high oil tem-
perature.
"
The rear differential oil will deteriorate if its tem-
perature increases enough for the rear differential
oil temperature warning light to come on. It is ad-
visable to have the rear differential oil replaced as
soon as possible.
! ABS warning light
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, the ABS
system may not work properly.
When the warning light is on, the ABS function
shuts down; however, the conventional brake
system continues to operate normally.
"
The warning light does not come on when the
ignition switch is turned to the “ON” position.
"
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 8 mph (12 km/h).
"
The warning light comes on during driving.
If these occur, have the ABS system repaired at
the first available opportunity by your SUBARU
dealer.
With a vehicle equipped with an EBD system, the ABS
warning light comes on together with the brake system
warning light if the EBD system becomes faulty. For
further details of the EBD system fault warning, refer
to “Brake system warning light”.
NOTE
If the warning light behavior is as described be-
low, the ABS system may be considered normal.
"
The warning light comes on right after the en-
gine is started but goes out immediately, remain-
ing off.
"
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).
"
The warning light comes on during driving, but
it goes out immediately and remains off.
When driving with an insufficient battery voltage such
(U.S.)
(Canada)