2004 SUBARU LEGACY check engine

7-10
Starting and operating
Starting the engine
Do not operate the starter motor continuously
for more than ten seconds. If the engine fails to
start after operating the starter for five to ten
seconds, wait for ten seconds or more before
trying again.
„ Starting the engine for a manual trans-
mission vehicle
1. Apply the parking brake.
2. Turn off unnecessary lights and accessories.
3. Press the clutch pedal to the floor and shift the shift
lever into neutral.
Hold the clutch pedal to the floor while starting the en-
gine. The starter motor will only operate when the
clutch pedal is pressed fully to the floor.
4. Turn the ignition switch to the “ON” position and
check the operation of the warning and indicator lights.
Refer to the “Warning and indicator lights” section
(chapter 3).
5. Turn the ignition switch to the “START” position
without depressing the accelerator pedal. Release the key immediately after the engine has started.
If the engine does not start within ten seconds, wait a
while and then turn the ignition switch to the “START”
position again while depressing the accelerator pedal
half way down.
6. Confirm that all warning and indicator lights have
gone off after the engine has started. The fuel injection
system automatically lowers the idle speed as the en-
gine warms up.
„ Starting the engine for an automatic
transmission vehicle
If you restart the engine while the vehicle is
moving, shift the selector lever into the “N” po-
sition. Do not attempt to place the selector lever
of a moving vehicle into the “P” position.
1. Apply the parking brake.
2. Turn off unnecessary lights and accessories.
3. Shift the selector lever to the “P” or “N” position
(preferably “P” position). The starter will only operate
when the select lever is at the “P” or “N” position.
4. Turn the ignition switch to the “ON” position and

7-11
Starting and operating
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check the operation of the warning and indicator lights.
Refer to the “Warning and indicator lights” section
(chapter 3).
5. Turn the ignition switch to the “START” position
without depressing the accelerator pedal. Release
the key immediately after the engine has started.
If the engine does not start within ten seconds, wait a
while and then turn the ignition switch to the “START”
position again while depressing the accelerator pedal
half way down.
6. Confirm that all warning and indicator lights have
gone out after the engine has started. The fuel injec-
tion system automatically lowers the idle speed as the
engine warms up.
While the engine is warming up, make sure that the
selector lever is at the “P” or “N” position and that the
parking brake is applied. „ Starting the engine during cold weath- er below –4 °F (–20 °C)
If the engine is difficult to start using the normal meth-
od (without depressing the accelerator pedal), turn the
ignition switch to the “START” position while slightly
depressing the accelerator pedal. „
Starting a flooded engine
If the engine does not start, it may be flooded (exces-
sive fuel in the engine).
In case of a flooded engine, turn the starter motor for
five seconds with the accelerator pedal fully de-
pressed. Repeat this two or three times until the en-
gine starts. Release the ignition switch and accelera-
tor pedal as soon as the engine starts.

7-31
Starting and operating
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TBraking when a tire is punctured
Do not depress the brake pedal suddenly when a tire
is punctured. This could cause a loss of control of the
vehicle. Keep driving straight ahead while gradually
reducing speed. Then slowly pull off the road to a safe
place. „ Brake system
T Two separate circuits
Your vehicle has two separate circuit brake systems.
Each circuit works diagonally across the vehicle. If one
circuit of the brake system should fail, the other half of
the system still works. If one circuit fails, the brake
pedal will go down much closer to the floor than usual
and you will need to press it down much harder. And a
much longer distance will be needed to stop the vehi- cle. T Brake booster
The brake booster uses engine manifold vacuum to
assist braking force. Do not turn off the engine while
driving because that will turn off the brake booster, re-
sulting in poor braking power.
The brakes will continue to work even when the brake
booster completely stops functioning. If this happens,
however, you will have to push the pedal much harder than normal and the braking distance will increase. „
Disc brake pad wear warning indica- tors
The disc brake pad wear warning indicators on the
disc brakes give a warning noise when the brake pads
are worn.
If a squeaking or scraping noise is heard from the disc
brakes while braking, immediately have your vehicle
checked by your SUBARU dealer.
HS7012BA

7-32
Starting and operating
ABS (Anti-lock Brake System)
Always use the utmost care in driving – over-
confidence because you are driving with an
ABS equipped vehicle could easily lead to a se-
rious accident.
y
The ABS system does not always decrease
stopping distance. You should always maintain
a safe following distance from other vehicles. y When driving on badly surfaced roads, gravel
roads, icy road, or over deep newly fallen snow,
stopping distances may be longer for a vehicle
with the ABS system than one without. When
driving under these conditions, therefore, re-
duce your speed and leave ample distance from
other vehicles. y When you feel the ABS system operating,
you should maintain constant brake pedal pres-
sure. Do not pump the brake pedal since doing
so may defeat the operation of the ABS system. The ABS system prevents the lock-up of wheels which
may occur during sudden braking or braking on slip-
pery road surfaces. This helps prevent the loss of
steering control and directional stability caused by
wheel lock-up.
When the ABS system is operating, you may hear a
chattering noise or feel a slight vibration in the brake
pedal. This is normal when the ABS operates.
The ABS system will not operate when the vehicle
speed is below approximately 6 mph (10 km/h). „
ABS system self-check
You may feel a slight shock in the brake pedal and hear the operating sound of ABS from the engine com-
partment just after the vehicle is started. This is
caused by an automatic functional test of the ABS sys-
tem being carried out and does not indicate any abnor-
mal condition.

7-35
Starting and operating
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yWhenever suspension components, steering
components, or an axle are removed from a ve-
hicle equipped with VDC, have an authorized
SUBARU dealer perform an inspection of that
system.y The following precautions should be ob-
served in order to ensure that the VDC system
is operating properly:
– All four wheels should be fitted with tires of
the same size, type, and brand. Furthermore,
the amount of wear should be the same for allfour tires.
– Keep the tire pressure at the proper level as
shown on the placard attached to the vehi-
cle’s door pillar.
– Use only the special temporary spare tire to
replace a flat tire. With a temporary spare tire,
the effectiveness of the VDC system is re-
duced and this should be taken into account
when driving with vehicle.
In the event of wheelspin and/or skidding on a slippery
road surface and/or during cornering and/or an eva-
sive maneuver, the VDC system adjusts the engine’s
output and the wheels’ respective braking forces to
help maintain traction and directional control. y
Traction Control Function
The traction control function is designed to prevent
spinning of the driving wheels on slippery road surfac-
es, thereby helping to maintain traction and directional
control. Activation of this function is shown by steady
illumination of the VDC operation indicator light. y Skid Suppression Function
The skid suppression function is designed to help
maintain directional stability by suppressing the
wheels’ tendency to slide sideways during steering op-
erations. Activation of this function is shown by flash-
ing of the VDC operation indicator light.
NOTE y Slight twitching of the brake pedal may be felt
when the VDC-system operates; a small degree of
vehicle or steering wheel shaking may also be no-
ticed in this situation. These are normal character-
istics of VDC operation and are no cause for
alarm. y When driving off immediately after starting the
engine, a short-lived operation noise may be no-
ticed coming from the engine compartment. This
noise is generated as a result of a check being per-
formed on the VDC system and is normal.y Depending on the timing of activation of the
brakes, certain situations may occur just after

7-36
Starting and operating
driving off where the brake pedal seems to exhibit
a jolting motion. This too is a consequence of the
VDC operational check and is normal. y
In the circumstances listed below, the vehicle
may be more unstable than it feels to the driver.
The Vehicle Dynamics Control System may there-
fore operate. Such operation does not indicate a
system fault.
yon gravel-covered or rutted roads
y on unfinished roads
y when the vehicle is towing a trailer
y when the vehicle is fitted with snow tires or
winter tires
y Activation of the VDC system will cause opera-
tion of the steering wheel to feel slightly different
compared to that for normal conditions. y Even if the vehicle is equipped with a VDC sys-
tem, it is important that winter tires be used when
driving on snow-covered or icy roads. (All four
wheels should be fitted with tires of the same size
and brand). y It is always important to reduce speed when ap-
proaching a corner, even if the vehicle is equipped with VDC. y All four wheels should be fitted with tires of the
same size, type, and brand; furthermore, the
amount of wear should be the same for all four tires. If these precautions are not observed and
non-matching tires are used, it is quite possible
that the VDC system will be unable to operate cor-
rectly as intended. y
Always turn off the engine before replacing a
tire as failure to do so may render the VDC system
unable to operate correctly. „ VDC system monitor
T V D C O F F i n d i c a t o r l i g h t
y The VDC OFF indicator light turns on initially when
the ignition key is turned to the ON position; it subse-
quently turns off 6 seconds after the engine is started.
UB4010FA

7-37
Starting and operating
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yThis light turns on to indicate that the VDC system
is in non-operation mode. This does not constitute fail- ure of the VDC system.
NOTE y The VDC OFF indicator light may stay on for a
while after the engine has been started, especially
in cold weather. This occurs because the engine
has not yet warmed up and is completely normal.
The light will turn off when the engine has reached
a suitable operating temperature. y When an engine problem occurs and the CHECK
ENGINE warning light turns on, the VDC OFF indi-
cator light will also turn on.
The following two situations could indicate malfunction
of the VDC system; if either should occur, have an au-
thorized SUBARU dealer carry out an inspection of
that system at the first available opportunity. y The VDC OFF indicator light does not turn on when
the ignition key is turned to the ON position. y The VDC OFF indicator light fails to turn off after the
engine is started, even when several minutes have
passed to allow the engine to heat up sufficiently. T VDC operation indicator light
The VDC operation indicator light turns on when the
ignition key is turned to the ON position; it turns off ap- proximately two seconds later. This indicator light
flashes during activation of the skid suppression func-
tion and is illuminated steadily during activation of the
traction control function.
The following two situations could indicate a malfunc-
tion of the VDC system; if either should occur, have an
authorized SUBARU dealer carry out an inspection of
that system at the first available opportunity.y
The VDC operation indicator light does not turn on
when the ignition key is turned to the ON position.y The VDC operation indicator light does not turn off
approximately two seconds after the ignition key has
been turned to the ON position. T V D C w a r n i n g l i g h t
The VDC warning light turns on when the ignition key
is turned to the ON position and off when the engine is
started. This lighting pattern indicates that the VDC
system is operating normally.
The following situations could indicate a malfunction of
the VDC system; if any should occur, have an autho-
rized SUBARU dealer carry out an inspection of the
system at the first available opportunity. y The VDC warning light does not turn on when the ig-
nition key is turned to the ON position. y The VDC warning light does not turn off either when
the engine is started or when the vehicle reaches a

8-3
Driving tips
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Engine exhaust gas (Carbon monox-
ide)
yNever inhale engine exhaust gas. Engine ex-
haust gas contains carbon monoxide, a color-
less and odorless gas which is dangerous, or
even lethal, if inhaled.y Always properly maintain the engine exhaust
system to prevent engine exhaust gas from en-
tering the vehicle.y Never run the engine in a closed space, such
as a garage, except for the brief time needed to
drive the vehicle in or out of it.y Avoid remaining in a parked vehicle for a
lengthy time while the engine is running. If that
is unavoidable, then use the ventilation fan to
force fresh air into the vehicle. y Always keep the front ventilator inlet grille
free from snow, leaves or other obstructions to
ensure that the ventilation system always
works properly. y If at any time you suspect that exhaust fumes
are entering the vehicle, have the problem
checked and corrected as soon as possible. If
you must drive under these conditions, drive only with all windows fully open.y
Keep the trunk lid or rear gate closed while
driving to prevent exhaust gas from entering
the vehicle.
NOTE
Due to the expansion and contraction of the met-
als used in the manufacture of the exhaust sys-
tem, you may hear a crackling sound coming from
the exhaust system for a short time after the en-
gine has been shut off. This sound is normal.