service reset Mercury Mountaineer 1998 Owner's Manuals

WARNING LIGHTS AND CHIMES
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.
C
012345
6
RPMx1000
ABS!BRAKE
CHECK
ENGINE
FUEL
RESET
EFH
H
H
PRN D 2 1THEFT
SPEED
CONT
4WD
HIGH
4WD
LOW
O/D
OFFL
L
10MPH 205060
70
304080
90
km/h
0 0 0
10 100
1
20
1
0 0 0 0 0 0406080100
120
140
160
180
20
DOOR
AJAR
CHECK
GAGE
CHECK
ENGINE
Instrumentation
6

have your vehicle serviced at the
first available opportunity.
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.
Fuel reset
Illuminates when the ignition key
is turned to the ON position and
the fuel pump shut-off switch has
been triggered. For more
information, refer toFuel pump
shut-off switchin theRoadside
emergencieschapter.
Air bag readiness
Momentarily illuminates when the
ignition is turned ON. If the light
fails to illuminate, continues to
flash or remains on, have the
system serviced immediately.
Safety belt
Momentarily illuminates when the
ignition is turned ON to remind
you to fasten your safety belts. For
more information, refer to the
Seating and safety restraints
chapter.
FUEL
RESET
Instrumentation
8

not pass the I/M test with the
ªcheck engine/service engine soonº
light on.
If the vehicle's powertrain system
or its battery has just been
serviced, the OBD-II system is
reset to a ªnot ready for I/M testº
condition. To ready the OBD-II
system for I/M testing, a minimum
of 30 minutes of city and highway
driving is necessary as described
below:
²First, at least 10 minutes of
driving on an expressway or
highway.
²Next, at least 20 minutes driving
in stop and go, city type traffic
with at least four idle periods.
Allow the vehicle to sit for at least
eight hours without starting the
engine. Then, start the engine and
complete the above driving cycle.
The engine must warm up to its
normal operating temperature.
Once started, do not turn off the
engine until the above driving
cycle is complete.
EXTERIOR BULBS
Replacing exterior bulbs
Check the operation of the
following lamps frequently:
²headlamps
²foglamps
²high-mount brakelamp
²brakelamps
²turn signals
Maintenance and care
190