2004 Mercury Monterey check engine light

WARNING LIGHTS AND CHIMES
Warning lights and gauges can alert you to a vehicle condition that may
become serious enough to cause extensive repairs. A warning light may
illuminate when a problem exists with one of your vehicle’s functions.
Many lights will illuminate when you start your vehicle to make sure the
bulb works. If any light remains on after starting the vehicle, have the
respective system inspected immediately.
Check engine:TheCheck Engine
indicator light illuminates when the
ignition is first turned to the ON
position to check the bulb. Solid
illumination after the engine is started indicates the On Board
Diagnostics System (OBD-II) has detected a malfunction. Refer toOn
board diagnostics (OBD-II)in theMaintenance and Specifications
chapter. If the light is blinking, engine misfire is occurring which could
damage your catalytic converter. Drive in a moderate fashion (avoid
heavy acceleration and deceleration) and have your vehicle serviced
immediately.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
2004 Monterey(mty)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
Instrument Cluster
10

Check fuel cap:Illuminates when
the fuel cap may not be properly
installed. Continued driving with
this light on may cause the Check
engine warning light to come on,
refer toFuel filler capin the
Maintenance and Specificationchapter.
Brake system warning light:To
confirm the brake system warning
light is functional, it will
momentarily illuminate when the
ignition is turned to the ON position when the engine is not running, or
in a position between ON and START, or by applying the parking brake
when the ignition is turned to the ON position. If the brake system
warning light does not illuminate at this time, seek service immediately
from your dealership. Illumination after releasing the parking brake
indicates low brake fluid level and the brake system should be inspected
immediately by your servicing dealership.
Driving a vehicle with the brake system warning light on is
dangerous. A significant decrease in braking performance may
occur. It will take you longer to stop the vehicle. Have the vehicle
checked by your dealer immediately.
Anti-lock brake system:If the
ABS light stays illuminated or
continues to flash, a malfunction has
been detected, have the system
serviced immediately. Normal
braking is still functional unless the brake warning light also is
illuminated.
Air bag readiness:If this light fails
to illuminate when ignition is turned
to ON, continues to flash or remains
on, have the system serviced
immediately. A chime will also sound when a malfunction in the
supplemental restraint system has been detected.
ABS
2004 Monterey(mty)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
11

Safety belt:Reminds you to fasten
your safety belt. A chime will also
sound to remind you to fasten your
safety belt.
Check transaxle:Illuminates when
a transaxle problem has been
detected and shifting may be
restricted. If the light remains on,
have the system serviced
immediately.
Charging system:Illuminates when
the battery is not charging properly.
Engine oil pressure:Illuminates
when the oil pressure falls below the
normal range, refer toEngine oilin
theMaintenance and
specificationschapter.
Engine coolant temperature:
Displays when the engine coolant
temperature is high. Stop the
vehicle as soon as possible, switch
off the engine and let cool. Refer to
Engine coolantin the
Maintenance and specifications
chapter.
Never remove the coolant recovery cap while the engine is
running or hot.
2004 Monterey(mty)
Owners Guide (post-2002-fmt)
USA English(fus)
Instrument Cluster
12

REDUCED ENGINE POWER.Displayed when the engine temperature
exceeds safe driving operating range and the vehicle limits engine power
to prevent engine damage.
STOP ENGINE SAFELY.Displayed when the engine temperature
exceeds safe driving operating range and the engine must be shut down
to prevent damage. Stop the vehicle as soon as possible and turn off the
engine. If this warning stays on, contact your dealer as soon as possible.
CHECK BRAKE LAMPS.Displayed when the brake lamps are
activated and at least one is burned out. Check the lamps as soon as
possible and have the burned out lamp replaced. The center high-mount
brakelamp is not monitored.
CHECK LEFT OR RIGHT HEADLAMPS.Displayed when the
headlamps are activated and at least one is burned out. Check the lamps
as soon as possible and have the burned out lamp replaced. Refer to
Replacing headlamp bulbsin theLightschapter.
CHECK LEFT OR RIGHT PARK LAMPS.Displayed when the park
lamps are activated and at least one is burned out. Check the lamps as
soon as possible and have the burned out lamp replaced.
CHECK LEFT OR RIGHT TURN LAMPS.Displayed when the turn
signals are activated and at least one is burned out. Check the lamps as
soon as safely possible and have the burned out lamp replaced.
CHECK TRACTION CONTROL (if equipped).Displayed when the
Traction Control
system is not operating properly. If this warning stays
on, contact your dealer for service as soon as possible. For further
information, refer toTraction control
in theDrivingchapter.
CHECK FUEL CAP.Displayed when the fuel filler cap is not properly
installed. Check the fuel filler cap for proper installation. Refer toFuel
filler capin theMaintenance and specificationschapter.
CHECK TIRES.Displayed when low tire pressure is detected in one or
more tires. Refer toChecking the tire pressurein theMaintenance
and specificationschapter.
TURN SIGNAL ON REMINDER.Displayed when the turn signal is
activated and the vehicle is driven more that 0.8 km (1/2 mile).
WASHER FLUID LOW.Indicates the washer fluid reservoir is less than
one quarter full. Check the washer fluid level. Refer toWindshield
washer fluidin theMaintenance and specificationschapter.
2004 Monterey(mty)
Owners Guide (post-2002-fmt)
USA English(fus)
Driver Controls
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Driving conditions which may activate AdvanceTrac
include:
•Accelerating on a slippery surface
•Taking a turn too fast
•Maneuvering quickly to avoid an accident, pedestrian or obstacle
•Hitting a patch of ice
•Changing lanes on a snow-rutted road
•Entering a snow-free road from a snow-covered side street, or vice
versa
•Entering a paved road from a gravel road, or vice versa
•Hitting a curb while turning
•Cornering at excessive speeds while towing a heavily loaded trailer
(refer toTrailer Towingin this chapter)
The AdvanceTrac
system automatically turns on when the engine is
started. However, the system does not function when the vehicle is
traveling in R (Reverse).
If you are operating the speed control system and road conditions
change causing the AdvanceTrac
to activate, the AdvanceTrac
will
disengage the speed control. When driving conditions permit, you can
return to speed control by pressing RESUME. Refer toSpeed controlin
theDriver controlschapter.
The AdvanceTrac
button allows
the driver to control the availability
of the AdvanceTrac
system.
AdvanceTrac
system status is
indicated by the TRAC OFF
indicator light in the instrument
cluster when the system is
deactivated.
If a failure is detected in the AdvanceTrac
system, the TRAC OFF
indicator light in the instrument cluster will stay on. CHECK
ADVANCETRAC will show in the message center display. Have the
vehicle system serviced immediately.
If the vehicle is stuck in snow or mud or when driving in deep sand,
switching off the AdvanceTrac
system may be beneficial so the wheels
are allowed to spin. If your vehicle seems to lose engine power while
driving in deep sand or very deep snow, switching off the AdvanceTrac

stability enhancement feature will restore full engine power and will
enhance momentum through the obstacle.
2004 Monterey(mty)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
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Some drivers may notice a slight movement of the brake pedal when the
AdvanceTrac
performs a system self-check. During AdvanceTrac

operation you may experience the following:
•A rumble or grinding noise
•A slight deceleration of the vehicle
•The TRAC ACTIVE indicator light will illuminate
•If your foot is on the brake pedal, you will feel a vibration in the
pedal.
•If the driving condition is severe and your foot is not on the brake, the
brake pedal will move to apply higher brake forces. You may also hear
a whoosh of air from under the instrument panel during this severe
condition.
All these conditions are normal during AdvanceTrac
operation.
If the AdvaceTrac system is activated for an extended period of time, the
brake portion of the system will shut down to allow the brakes to cool
down. A limited AdvanceTrac
function using only engine power
reduction will still help control the wheels from over-spinning. When the
brakes have cooled down, the system will again function normally.
Anti-lock braking is not affected by this condition and will function
normally during the cool-down period.
Do not alter or modify your vehicle’s suspension or steering; the
resulting changes to the vehicle’s handling can adversely affect
the AdvanceTrac
system. Also, do not install a stereo
loudspeaker near the front center console or under either front
seat. The speaker vibrations can adversely affect the
AdvanceTrac
sensors located in this area.
Aggressive driving in any road conditions can cause you to lose
control of your vehicle increasing the risk of severe personal
injury or property damage. The occurrence of an AdvanceTrac
event
is an indication that at least some of the tires have exceeded their
ability to grip the road; this may lead to an increased risk of loss of
vehicle control, vehicle rollover, personal injury and death. If you
experience a severe road event, SLOW DOWN.
2004 Monterey(mty)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
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Preparing your vehicle
When the battery is disconnected or a new battery is installed, the
transmission must relearn its shift strategy. As a result, the transmission
may have firm and/or soft shifts. This operation is considered normal and
will not affect function or durability of the transmission. Over time, the
adaptive learning process will fully update transmission operation.
1.Use only a 12–volt supply to start your vehicle.
2. Do not disconnect the battery of the disabled vehicle as this could
damage the vehicle’s electrical system.
3. Park the booster vehicle close to the hood of the disabled vehicle
making sure the two vehiclesdo nottouch. Set the parking brake on
both vehicles and stay clear of the engine cooling fan and other moving
parts.
4. Check all battery terminals and remove any excessive corrosion before
you attach the battery cables. Ensure that vent caps are tight and level.
5. Turn the heater fan on in both vehicles to protect any electrical
surges. Turn all other accessories off.
Connecting the jumper cables
1. Connect the positive (+) jumper cable to the positive (+) terminal of
the discharged battery.
Note:In the illustrations,lightning boltsare used to designate the
assisting (boosting) battery.
+–+–
2004 Monterey(mty)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
195

SERVICE RECOMMENDATIONS
To help you service your vehicle:
•We highlight do-it-yourself items in the engine compartment for easy
location.
•We provide a scheduled maintenance guide which makes tracking
routine service easy.
If your vehicle requires professional service, your dealership can provide
the necessary parts and service. Check yourWarranty Guide/Owner
Information Guideto find out which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Motorcraft parts are designed and built to
provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
•Do not work on a hot engine.
•Make sure that nothing gets caught in moving parts.
•Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
•Keep all open flames and other lit material away from the battery and
all fuel related parts.
Working with the engine off
1. Set the parking brake and shift to P (Park).
2. Turn off the engine and remove the key.
3. Block the wheels.
Working with the engine on
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
Note:Do not start your engine with the air cleaner removed and do not
remove it while the engine is running.
2004 Monterey(mty)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
Maintenance and Specifications
216