2003 SUBARU LEGACY check engine light

3-16while driving with this condition, but you should have your vehicle checked at a SUBARU dealer as soon as possible. NOTE
If the warning light behavior is as shown below, the VDC system may be considered normal.
The warning light comes on right after the engine is started but
goes out immediately, remaining off. The warning light remains on after the engine has been started,
but it goes out when the vehicle speed reaches 8 mph about (12km/h). The warning light comes on during driving, but it goes out im-
mediately and remains off. Brake system warning light
WARNING
Driving with the brake system warning light on is dangerous.
This indicates your brake system may not be working properly. If the light remains on, have the brakes inspected by a SUBARU
dealer immediately. If at all in doubt about whether the brakes are operating prop-
erly, do not drive the vehicle. Have your vehicle towed to the
nearest SUBARU dealer for repair.
This light has the following two functions: Parking brake warning
The light comes on with the parking brake applied while the ignition switch is in the “ON” position. It goes out when the parking brake is
fully released. Brake fluid level warning
This light comes on when the brake fluid level has dropped to near the “MIN” level of the brake fluid reservoir with the ignition switch in
the “ON” position and with the parking brake fully released.
If the brake system warning light should come on while driving (with
the parking brake fully released and with the ignition switch posi- (U.S.)
(Canada)

3-18the ignition switch has been turned to the
“ON” position.
VDC (Vehicle Dynamics Control) OFF indicator light (if equipped)
This indicator light comes on when the ignition switch is turned ON
and goes out about 6 seconds after the engine has started. It comes on when the VDC system is deactivated (by operating “VDC
OFF” switch or in the standby state).
NOTE The light may stay on for a while after the engine has been
started, especially in cold weather. This does not indicate the exis- tence of a problem. The light should go out as soon as the enginehas warmed up. The “VDC OFF ” indicator light comes on when the engine has de-
veloped a problem and the CHECK ENGINE warning light is on.
The VDC system is probably faulty under any of the following conditions. Have your vehicle checked at a SUBARU dealer as soon as possible. The VDC OFF indicator light does not come on when the ignition
switch is turned to the “ON” position.
The light does not go out even after several minutes have passed (the
engine has warmed up) after the engine has been started. Security system status indicator light (if equipped)
This light is found at the bottom center of the combination meter panel. On vehicles equipped with a security system, it blinks to show the driver
the operational status of the security system. For detailed information, re-fer to the “Security system ” in Chapter 2.
Shift position indicator (for AT vehicles)
This indicator shows the position of the shift lever.
If the transmission has a Sport Shift mode, the position of the shift lever is
shown by another indicator during Sport Shift mode operation. For de-
tails, refer to Chapter 7, “Automatic transmission ”.

4
Climate control4-15
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n
OUT.TEMP switch
To check the outside air temperature, push the “OUT.TEMP” switch.
The outside air temperature will be displayed for five seconds, and
then the display automatically changes back to the inside air temper-
ature.
The display changes over from the inside air temperature to the out-
side air temperature as its normal indication if you keep the switch
pressed for more than 2 seconds. NOTE The outside air temperature display shows the outside air tem-
perature in a range from –22F to 131 F ( –30 C to 55 C).
You can check the outside air temperature even when the Au-
tomatic Climate Control is off. (The ignition switch should be in the “ON” position.)
In the following cases, the display can indicate a higher tem-
perature than the actual outside air temperature: – In direct sunlight
– When the vehicle is parked for a long period of time with the
engine kept running.– During stop and go driving
n
— Defroster switch
To defrost or dehumidify the windshield and side window, push the
defroster switch “
”. When the “” switch is pushed, re-
gardless whether the air conditioner is operating or not, outside air is
drawn into the passenger compartment, the air conditioner compres-
sor turns on, air flow is directed towards the windshield and side win-dows, and the indicator light “
” on the control panel comes on.
Even with the defroster switch pushed, you can turn the air condition-
er ON/OFF and select interior air recirculation or outside air introduc-
tion as desired.
After eliminating the fogging from the windshield, set the air condition-er back in the AUTO mode by pushing the “AUTO” switch or turn off
by pushing the “OFF” switch or “
” switch.

7
Starting and operating7-7
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If the fuel filler cap is not tightened until it clicks or if the tether
is caught under the cap, the CHECK ENGINE warning light may come on. Refer to the “Warning and indicator lights ” section lo-
cated in chapter 3.
State emission testing (U.S. only)
WARNING
Testing of an All-Wheel Drive vehicle must NEVER be performed
on a single two-wheel dynamometer. Attempting to do so willresult in uncontrolled vehicle movement and may cause an acci-
dent or injuries to persons nearby.
CAUTION
Resultant vehicle damage due to improper testing is not covered
under the SUBARU Limited Warranty and is the responsibility ofthe state inspection program or its contractors or licensees.
At state inspection time, remember to tell your inspection or service
station in advance not to place your Subaru AWD vehicle on a two-
wheel dynamometer. Otherwise, serious transmission damage willresult.
Some states have started using dynamometers in their state inspection
programs in order to meet their obligation under federal law to implement
stricter vehicle emission standards to reduce air pollution from cars. A
dynamometer is a treadmill or roller-like testing device that allows your
car’ s wheels to turn while the car remains in one place. Depending on
the severity of a state ’s air pollution problems, the states must adopt
either a “basic” or “enhanced” vehicle emission inspection test. Nor-
mally, a portion of the basic emission test consists of an emission
inspector inserting an analyzer probe into the exhaust pipe of an idling
vehicle for a short period of time. States with more severe air pollution
problems are required to adopt an enhanced vehicle emission test. This
test simulates actual driving conditions on a dynamometer and permits

7-8
more accurate measurement of tailpipe emitted pollution than the basic emission test.
The U.S. Environmental Protection Agency (EPA) and states using two-
wheel dynamometers in their emission testing programs haveEXEMPTED
Subaru AWD vehicles from the portion of the testing pro-
gram that involves a two-wheel dynamometer.
There are some states that use four-wheel dynamometers in their testing
programs. When properly used, that equipment will not damage an AWD Subaru vehicle.
Under no circumstances should the rear wheels be jacked off the
ground, nor should the driveshaft be disconnected for state emission testing.
The EPA has issued regulations for inspecting the On-Board Diagnostic
(OBD) system as part of the state emissions inspection. The OBD sys-
tem is designed to detect engine and transmission problems that mightcause vehicle emissions to exceed allowable limits. These inspectionsapply to all 1996 model year and newer passenger cars and light trucks.
Several states plus the District of Columbia have opted to start the OBD
system inspection prior to the required EPA regulation effective date of
January 1, 2002. Other states will add OBD system inspection in 2002. The inspection of the OBD system consists of a visual operational
check of the “CHECK ENGINE ” warning light/malfunction indicator lamp
(MIL) and an examination of the OBD system with an electronic scan tool while the engine is running. A vehicle passes
the OBD system inspection if proper the “CHECK
ENGINE ” warning light/MIL illumination is observed, there is no stored
diagnostic trouble codes, and the OBD system readiness monitors are complete. A vehicle fails
the OBD inspection if the “CHECK ENGINE ” warning
light/MIL is not properly operating or there is one or more diagnostic
trouble codes stored in vehicle ’s computer with the “CHECK ENGINE ”
warning light/MIL illuminated. A state emission inspection may reject (not pass or fail) a vehicle if
the number of OBD system readiness monitors “Not Ready ” is greater

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Starting and operating7-9
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than three. Under this condition, the vehicle operator should be
instructed to drive his/her vehicle for a few days to set the monitors and
return for an emission re-inspection.
Owners of rejected or failing vehicles should contact their Subaru
Dealer for service.
Preparing to drive
You should perform the following checks and adjustments every day be-
fore you start driving.
1. Check that all windows, mirrors, and lights are clean and unob- structed.
2. Check the appearance and condition of the tires. Also check tires for
proper inflation.
3. Look under the vehicle for any sign of leaks.
4. Check that the hood, trunk and rear gate are fully closed.
5. Check the adjustment of the seat.
6. Check the adjustment of the inside and outside mirrors.
7. Fasten your seatbelt. Check that your passengers have fastened theirseatbelts.
8. Check the operation of the warning and indicator lights when the igni-
tion switch is turned to the “ON” position.
9. Check the gauges, indicator and warning lights after starting the en-gine. NOTE Engine oil, engine coolant, brake fluid, washer fluid and other fluid
levels should be checked daily, weekly or at fuel stops.

7-10Starting the engine
CAUTION
Do not operate the starter motor continuously for more than ten
seconds. If the engine fails to start after operating the starter forfive to ten seconds, wait for ten seconds or more before tryingagain.
Starting the engine for a manual transmission 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 engine. 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
light” 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 ac-
celerator 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 engine warms up.
Starting the engine for an automatic transmission ve- hicle
CAUTION
If you restart the engine while the vehicle is moving, shift the se- lector lever into the “N” position. Do not attempt to place the se-
lector lever of a moving vehicle into the “P” position.

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Starting and operating7-11
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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” posi-
tion). 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 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 turnthe ignition switch to the “START” position again while depressing the ac-
celerator pedal half way down.
6. Confirm that all warning and indicator lights have gone out after the
engine has started. The fuel injection 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 weather below –4F
(–20 C)
If the engine is difficult to start using the normal method (without de-
pressing 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 (excessive fuel in the en-gine).
In case of a flooded engine, turn the starter motor for five seconds with
the accelerator pedal fully depressed. Repeat this two or three times until
the engine starts. Release the ignition switch and accelerator pedal as
soon as the engine starts.