2000 Mercury Grand Marquis check engine light

WARNING LIGHTS AND CHIMES
Standard instrument cluster
Optional instrument cluster
Low fuel (if equipped)
Illuminates as an early reminder of a
low fuel condition indicated on the
fuel gauge (refer toFuel gaugein
this chapter for more information).
When refueling, after the light
comes on, the amount of fuel that is added will be less than the
advertised capacity since there is fuel still in the tank. The ignition must
be in the ON position for this lamp to illuminate. The lamp will also
illuminate for several seconds after the ignition is turned to the ON
position regardless of the fuel level to ensure your bulb is working.
E
LOW
FUELCHECK
ENGINEAIR
SUSPOD
OFF
BRAKEAIR
BAG
TEMP OIL VOLTS FUEL
MPH km/h10 203040506070
80
90
10 0
11 0
12 020 406080100
120
140
160
180
200
H H
L C F H
L
< FUEL FILL DOOR TRAC
CNTL
0000000
0
0 0 0
+ –
F
E
/2 1
N
O
R
M
H
Ckm/h
MPH
km SCHECK
ENGINE
AIR
BAGSPEED CONTROL
P R N D 2 1
CHECK
TRUNK AJAR LTR/100 kmAIR SUSPENSION
OVERDRIVE OFFDOOR
AJAR
LOW
WASHER
FLUID
DISTANCE
TO EMPTY
TRIP
AAVG FUEL
ECONOMY
TRIP
BAVG
SPEED
km
MILES
/GAL
LOW
FUEL
Instrumentation
8

Check engine
Your vehicle is equipped with a
computer that monitors the engine's
emission control system. This
system is commonly known as the
On Board Diagnostics System (OBD
II). This OBD II system protects the environment by ensuring that your
vehicle continues to meet government emission standards. The OBD II
system also assists the service technician in properly servicing your
vehicle.
TheCheck Engineindicator light illuminates when the ignition is first
turned to the ON position to check the bulb. If it comes on after the
engine is started, one of the engine's emission control systems may be
malfunctioning. The light may illuminate without a driveability concern
being noted. The vehicle will usually be drivable and will not require
towing.
What you should do if the check engine light illuminates
Light turns on solid:
This means that the OBD II system has detected a malfunction.
Temporary malfunctions may cause yourCheck Enginelight to
illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may misfire or run
poorly.)
2. Poor fuel quality or water in the fuel.
3. The fuel cap may not have been properly installed and securely
tightened.
These temporary malfunctions can be corrected by filling the fuel tank
with high quality fuel of the recommended octane and/or properly
installing and securely tightening the gas cap. After three driving cycles
without these or any other temporary malfunctions present, theCheck
Enginelight should turn off. (A driving cycle consists of a cold engine
startup followed by mixed city/highway driving.) No additional vehicle
service is required.
If theCheck Enginelight remains on, have your vehicle serviced at the
first available opportunity.
CHECK
ENGINE
Instrumentation
9

Charging system
Illuminates when the ignition is
turned to the ON position and the
engine is off. The light also
illuminates when the battery is not
charging properly, requiring
electrical system service.
Engine oil pressure (if equipped)
Illuminates when the oil pressure
falls below the normal range. Stop
the vehicle as soon as safely
possible and switch off the engine
immediately. Check the oil level and
add oil if needed. Refer toEngine oilin theMaintenance and care
chapter.
This lamp also illuminates when the ignition is turned to ON and the
engine is off.
Air suspension (if equipped)
²Standard instrument cluster
²Optional instrument cluster
Momentarily illuminates when the
ignition is turned to the ON
position. Also illuminates when the
air suspension requires repair, the
air suspension switch is OFF or the
load limit is exceeded. For
information on the air suspension system, refer to theDrivingchapter.
AIR
SUSP
CHECK
TRUNK AJAR LTR/100 kmAIR SUSPENSION
OVERDRIVE OFFDOOR
AJAR
LOW
WASHER
FLUID
km
MILES
/GAL
Instrumentation
12

O/D off
²Standard instrument cluster
²Optional instrument cluster
Illuminates when the Transmission
Control Switch (TCS), refer to
Overdrive controlin theControls
and Featureschapter, has been
pushed turning the transmission
overdrive function OFF. When the
light is on, the transmission does not operate in the overdrive mode,
refer to theDrivingchapter for transmission function and operation.
The light may also flash steadily if a transmission malfunction is
detected. If the light does not come on when the Transmission Control
Switch is depressed or if the light flashes steadily, have your vehicle
serviced as soon as possible, damage to the transmission could occur.
Traction ControlYactive (if equipped)
Flashes when the Traction Controly
system begins applying and
releasing the brakes and adjusting
the engine characteristics to limit a
wheelspin condition. It will be lit for a minimum of four seconds or for
the duration of the Traction Controlyevent.
If the Traction Controlyindicator comes on or stays lit, either:
²the Traction Controlysystem needs service, or
²the customer has disabled the system using the traction control switch
in the glove compartment.
For more information, refer to theDrivingchapter.
Message center indicator lights (if equipped)
Speed control
This light comes on when either the
SET/ACCEL or RESUME controls
are pressed. It turns off when the
speed control OFF control is pressed, the brake is applied or the ignition
is turned to the OFF position.
O/D
OFF
CHECK
TRUNK AJAR LTR/100 kmAIR SUSPENSION
OVERDRIVE OFFDOOR
AJAR
LOW
WASHER
FLUID
km
MILES
/GAL
TRAC
CNTL
SPEED CONTROL
Instrumentation
13

Headlamps on warning chime
Sounds when the headlamps or parking lamps are on, the ignition is off
(and the key is not in the ignition) and the driver's door is opened.
GAUGES
Standard instrument cluster gauges
Optional instrument cluster gauges
Fuel gauge
Displays approximately how much fuel is in the fuel tank (when the key
is in the ON position). The fuel gauge may vary slightly when the vehicle
is in motion. The ignition should be in the OFF position while the vehicle
is being refueled. When the gauge first indicates empty, there is a small
amount of reserve fuel in the tank. When refueling the vehicle from
empty indication, the amount of fuel that can be added will be less than
the advertised capacity due to the reserve fuel.
E
LOW
FUEL TRAC
CNTLCHECK
ENGINEAIR
SUSPOD
OFF
BRAKEAIR
BAG
TEMP OIL VOLTS FUEL
MPH km/h10 203040506070
80
90
10 0
11 0
12 020 406080100
120
140
160
180
200
H H
L C F H
L
< FUEL FILL DOOR
0000000
0
0 0 0
+ –
F
E
/2 1
N
O
R
M
H
Ckm/h
MPH
km SCHECK
ENGINE
AIR
BAGSPEED CONTROL
P R N D 2 1
CHECK
TRUNK AJAR LTR/100 kmAIR SUSPENSION
OVERDRIVE OFFDOOR
AJAR
LOW
WASHER
FLUID
TRIP
ATRIP
BAVG
SPEED
km
MILES
/GAL
DISTANCE
TO EMPTYAVG FUEL
ECONOMY
Instrumentation
15

and devices cannot damage the PATS ignition key, but can cause a
momentary concern if they are too close to the key during engine start.
If a problem occurs, turn ignition OFF and restart the engine with all
other objects on the key ring held away from the ignition key. Check to
make sure the encoded ignition key is an approved Ford encoded
ignition key.
Spare coded keys can be purchased from your dealership and
programmed to your anti-theft system. Refer toProgramming spare
SecuriLockykeysfor more information.
If one or both of your coded keys are lost or stolen and you want to
ensure the lost or stolen key will not operate your vehicle, bring your
vehicle and all available coded keys to your dealership for reinitialization.
Theft indicator
The theft indicator in the instrument cluster will operate as follows:
²When the ignition is OFF, the theft indicator will flash briefly every
two seconds to indicate the anti-theft system is protecting your
vehicle.
²When the ignition is turned to ON or START, the theft indicator will
light for three seconds and then go out. If the theft indicator stays on
for an extended period of time or flashes rapidly, have the system
serviced by your dealership or a qualified technician.
Programming spare SecuriLockYkeys
Spare coded keys can be purchased from your dealership and
programmed to your anti-theft system (up to a total of eight keys). Your
dealership can program your new coded key(s) to your vehicle or you
can do it yourself using the following simple procedure. To program a
new coded key yourself, you will need two previously programmed coded
keys (keys that already operate your vehicle's engine). If two previously
programmed coded keys are not available (one or both of your original
keys were lost or stolen), you must bring your vehicle to your dealership
to have the spare coded key(s) programmed.
Procedure to program spare SecuriLockYkeys to your vehicle
New coded keys must have the correct mechanical key cut for your
vehicle.
Conventional (non-coded) keyscannotbe programmed to your vehicle.
Controls and features
81

Make sure the corresponding lights illuminate briefly. If a light fails to
illuminate, have the vehicle serviced.
²If the driver's safety belt is fastened, the
light may not illuminate.
STARTING THE ENGINE
1. Turn the key to 5 (START)
without pressing the accelerator
pedal and release as soon as the
engine starts. The key will return to
4 (ON).
2. If the temperature is above ±12ÉC
(10ÉF) and the engine does not
start within five seconds on the first
try, turn the key to OFF, wait 10
seconds and try again.
3. If the temperature is below -12É C (10É F) and the engine does not
start in 15 seconds on the first try, turn the key OFF and wait 10
seconds and try again. If the engine does not start in two attempts, Press
the accelerator pedal all the way to floor and hold. Turn the key to
START position.
4. When the engine starts, release the key, then release the accelerator
pedal gradually as the engine speeds up.
5. After idling for a few seconds, apply the brake and release the parking
brake.
+ –
F
E
/2 1
N
O
R
M
H
Ckm/h
MPH
km SCHECK
ENGINE
AIR
BAGSPEED CONTROL
P R N D 2 1
CHECK
TRUNK AJAR LTR/100 kmAIR SUSPENSION
OVERDRIVE OFFDOOR
AJAR
LOW
WASHER
FLUID
TRIP
ATRIP
BAVG
SPEED
km
MILES
/GAL
DISTANCE
TO EMPTYAVG FUEL
ECONOMY
3
2
1
5
4
Starting
115

BRAKES
Your service brakes are self-adjusting. Refer to the scheduled
maintenance guide for scheduled maintenance.
Occasional brake noise is normal and often does not indicate a
performance concern with the vehicle's brake system. In normal
operation, automotive brake systems may emit occasional or intermittent
squeal or groan noises when the brakes are applied. Such noises are
usually heard during the first few brake applications in the morning;
however, they may be heard at any time while braking and can be
aggravated by environmental conditions such as cold, heat, moisture,
road dust, salt or mud. If a ªmetal-to-metal,º ªcontinuous grindingº or
ªcontinuous squealº sound is present while braking, the brake linings
may be worn-out and should be inspected by a qualified service
technician.
Anti-lock brake system (ABS) (if equipped)
On vehicles equipped with an anti-lock braking system (ABS), a noise
from the hydraulic pump motor and pulsation in the pedal may be
observed during ABS braking events. Pedal pulsation coupled with noise
while braking under panic conditions or on loose gravel, bumps, wet or
snowy roads is normal and indicates proper functioning of the vehicle's
anti-lock brake system. The ABS performs a self-check after you start
the engine and begin to drive away. A brief mechanical noise may be
heard during this test. This is normal. If a malfunction is found, the ABS
warning light will come on. If the vehicle has continuous vibration or
shudder in the steering wheel while braking, the vehicle should be
inspected by a qualified service technician.
The ABS operates by detecting the
onset of wheel lockup during brake
applications and compensates for
this tendency. The wheels are
prevented from locking even when
the brakes are firmly applied. The
accompanying illustration depicts
the advantage of an ABS equipped
vehicle (on bottom) to a non-ABS
equipped vehicle (on top) during hard braking with loss of front braking
traction.
Driving
118