2002 Mercury Mountaineer ABS

Check gage (if equipped)
Illuminates when the engine coolant
temperature is high, the engine oil
pressure is low or the fuel gauge is
at or near empty. Refer toEngine
coolant temperature gauge, Engine oil pressure gaugeorFuel gauge
in this chapter for more information.
Oil pressure/Engine coolant
Illuminates when the engine coolant
temperature is above the normal
range or the engine oil pressure is
outside normal range. Check the
engine oil and coolant level refer to
Adding engine oilandAdding coolantin theMaintenance and care
chapter.
Anti-lock brake system (ABS)
To confirm the anti-lock brake
system (ABS) warning light is
functional it will momentarily
illuminate when the ignition is
turned to the ON position
(alternatively for some vehicles when the ignition is moved from the ON
position to the START position, the light will momentarily illuminate just
prior to reaching the START position). If the light remains on, continues
to flash or fails to illuminate, have the ABS serviced immediately. If the
ABS light remains on, it means the anti-lock brake system has
malfunctioned and is disabled, however, the normal brake system will
still function unless the brake warning light also remains illuminated and
parking brake is off. Refer toBrakesin theDrivingchapter for more
information.
CHECK
GAGE
ABS
Instrumentation
11

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“metal-to-metal,”“continuous grinding”or
“continuous squeal”sound is present while braking, the brake linings
may be worn-out and should be inspected by a qualified service
technician.
If you are driving down a long or steep hill, shift to a lower gear.
Do not apply your brakes continuously, as they may overheat
and become less effective.
Anti-lock brake system (ABS)
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.
Driving
174

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.
ABS warning lamp
ABS
TheABSwarning lamp in the instrument cluster momentarily illuminates
when the ignition is turned to the ON position. If the light does not
illuminate momentarily at start up, remains on or continues to flash, the
ABS needs to be serviced.
With the ABS light on, the anti-lock
brake system is disabled and normal
braking is still effective unless the
brake warning light also remains
illuminated with parking brake released. (If your brake warning lamp
illuminates, have your vehicle serviced immediately.)
Using ABS
•In an emergency or when maximum efficiency from the four-wheel
ABS is required, apply continuous force on the brake. The four wheel
ABS will be activated immediately, thus allowing you to retain full
steering control of your vehicle and, providing there is sufficient
space, will enable you to avoid obstacles and bring the vehicle to a
controlled stop.
•The anti-lock system does not reduce stopping distance. Always leave
enough room between your vehicle and the vehicle in front of you to
stop.
•We recommend that you familiarize yourself with this braking
technique. However, avoid taking any unnecessary risks.
Brake Assist (if equipped as part of the AdvanceTrac
system)
The Brake Assist system provides full braking force during panic braking
situations. It detects a rapid application of the brake pedal and
Driving
175

Drivingconditionswhichmayactivate AdvanceTracinclude:
•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
•Driving on slick surfaces
•Cornering while towing a heavily loaded trailer (refer toTrailer
Towingin this chapter)
The AdvanceTracsystem automatically turns on when the engine is
started. However, the system does not function when the vehicle is
traveling in R (Reverse) or, if equipped with four-wheel drive, in 4L (4X4
LOW). In R (Reverse) or in 4L (4X4 LOW), ABS and the traction
enhancement feature will continue to function.
The AdvanceTracbutton allows
the driver to control the availability
of the AdvanceTracsystem.
AdvanceTracsystem status is
indicated by a warning indicator
light with a“sliding car”icon in the instrument cluster that will flash
when the system is active and an indicator light in the control button
that will illuminate when the system is turned off. In vehicles with a
message center, the message“ADVANCETRAC OFF”will be displayed.
If a failure is detected in the AdvanceTracsystem, the warning
indicator light in the instrument cluster will stay on. If the warning
indicator light in the instrument cluster remains on while the engine is
running, have the system serviced immediately.
Pressing the control once will disable the AdvanceTracstability
enhancement and the engine power reduction portion of the traction
enhancement feature; the brake portion of the traction enhancement
feature will still function normally. Pressing and holding the control for
more than five seconds will disable the AdvanceTracstability
enhancementandtraction enhancement feature. If the vehicle is stuck
in snow or mud or when driving in deep sand, switching off the
AdvanceTracsystem may be beneficial so the wheels are allowed to
Driving
178

Descend a hill in the same gear you
would use to climb up the hill to
avoid excessive brake application
and brake overheating. Do not
descend in neutral, disengage
overdrive or manually shift to a
lower gear. When descending a
steep hill, avoid sudden hard
braking as you could lose control.
When you brake hard, the front
wheels can’t turn and if they aren’t
turning, you won’tbeabletosteer.
The front wheels have to be turning in order to steer the vehicle.
If your vehicle has anti-lock brakes, apply the brakes steadily. Do not
“pump”the brakes.
Driving on snow and ice
AWD vehicles have advantages over 2WD vehicles in snow and ice but
can skid like any other vehicle.
Should you start to slide while driving on snowy or icy roads, turn the
steering wheel in the direction of the slide until you regain control.
Avoid sudden applications of power and quick changes of direction on
snow and ice. Apply the accelerator slowly and steadily when starting
from a full stop.
Avoid sudden braking as well. Although an AWD vehicle may accelerate
better than a two-wheel drive vehicle in snow and ice, it won’tstopany
faster, because as in other vehicles, braking occurs at all four wheels. Do
not become overconfident as to road conditions.
Make sure you allow sufficient distance between you and other vehicles
for stopping as well as drive slower than usual and consider using one of
the lower gears. In emergency stopping situations, avoid locking of the
wheels. Use a“squeeze”technique, push on the brake pedal with a
steadily increasing force which allows the wheels to brake yet continue
to roll so that you may steer in the direction you want to travel. If you
lock the wheels, release the brake pedal and repeat the squeeze
technique. If your vehicle is equipped with a four wheel anti-lock brake
system (ABS), apply the brake steadily. Do not“pump”the brakes. Refer
to theBrakessection of this chapter for additional information on the
operation of the anti-lock brake system.
Never drive with chains on the front tires of AWD vehicles without also
putting them on the rear tires. This could cause the rear to slide and
swing around during braking.
Driving
191

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
11—Not used (spare)
12 5A Foglamp switch, 4x4 module
13 5A Overdrive cancel switch, Flex fuel sender
14 5A PATS module
15 5A Rear wiper module, Cluster, TPMS
16 5A Power mirror, Manual climate control,
TPMS
17 15A Delayed acc. coil, Battery saver, Interior
lamps (front and rear), Glove
compartment lamp
18 10A Left horn
19 10A RCM, PAD indicator
20 5A PATS, Driver seat switch, Memory switch,
Driver seat module, BSM, Sunload sensor
21 5A Instrument cluster, Compass, Flasher coil
22 10A ABS, IVD Controller
23 15A Brake pedal position switch, Driver brake
applied relay, Redundant cruise deactivate
switch
24 15A Cigar lighter, OBD II
25 5A Mode-Temperature actuator for auxiliary
climate control, Trailer tow battery charge
coil
26 7.5A Park aid, Brake shift interlock, Approach
lamp relay coil, IVD switch
27 7.5A Electrochromatic mirror, Digital
transmission range sensor - backup lamps
28 5A Radio (Start)/DVD (Start)
29 10A Digital transmission range sensor, PWR
feed to fuse #28 (Start feed)
30 5A Daytime Running Lamps (DRL), Remote
solenoid, DEATC climate controller
Roadside emergencies
209

The high-current fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box Description
1 60A** PJB
2 30A** BSM
3 20A** GCC pusher fan (export only)
4 30A** Rear defrost
5 40A** Anti-lock Brake System (ABS) pump
6 60A** Delayed accessory circuit breaker
7 20A** Power point #2
8—Not used
9 20A** Power point #1
10 30A** ABS module (valves)
11 40A** PTEC
12 50A** Ignition relay/Starter relay
13 40A** Trailer tow battery, Trailer tow turn signals
14 10A* Daytime Running Lamps (DRL)
(Canada)/Foglamps (export only)
15 15A* Memory (KAPWR)
16 15A* Headlamp switch
17 20A* 4x4 (v-batt 2)
18 20A* 4x4 (v-batt 1)
Roadside emergencies
212

•Avoid inhaling fuel vapors. Inhaling too much fuel vapor of any kind
can lead to eye and respiratory tract irritation. In severe cases,
excessive or prolonged breathing of fuel vapor can cause serious
illness and permanent injury.
•Avoid getting fuel liquid in your eyes. If fuel is splashed in the eyes,
remove contact lenses (if worn), flush with water for 15 minutes and
seek medical attention. Failure to seek proper medical attention could
lead to permanent injury.
•Fuels can also be harmful if absorbed through the skin. If fuel is
splashed on the skin and/or clothing, promptly remove contaminated
clothing and wash skin thoroughly with soap and water. Repeated or
prolonged skin contact with fuel liquid or vapor causes skin irritation.
•Be particularly careful if you are taking“Antabuse”or other forms of
disulfiram for the treatment of alcoholism. Breathing gasoline and/or
ethanol vapors, or skin contact could cause an adverse reaction. In
sensitive individuals, serious personal injury or sickness may result. If
fuel is splashed on the skin, promptly wash skin thoroughly with soap
and water. Consult a physician immediately if you experience an
adverse reaction.
•FFV fuel tanks may contain zero to 85 percent ethanol. Any fuel
blends containing gasoline and ethanol should be treated the same as
“Fuel Ethanol”. To identify if your vehicle is an FFV, check your VIN
or the label on the inside of your fuel filler door. When checking the
VIN look for the engine type identifier (8th character). If your vehicle
is an FFV, then the character will be labeled as a“K.”
Pure ethanol is the alcohol which is the intoxicating agent in liquor, beer
and wine. It is distilled from the fermentation of plants such as field corn
and sugar cane. When ethanol is used in the making of motor fuels, a
small amount of a bad tasting chemical is added to discourage beverage
use. The resulting fuel is called E
d100 meaning 100% pure ethanol
diluted by 2% to 5% gasoline as the“denaturant.”
Fuel ethanol (summer blend
d) is then made by adding 15% more
unleaded gasoline. The resulting fuel also has a higher octane rating than
unleaded regular gasoline and other properties which allow engine
designs with greater efficiency and power.
Winter blends may contain up to 30% (E70)unleaded gasoline (25% plus
the denaturant) to enhance cold engine starts. Severely cold weather
may require additional measures for reliable starting. Refer toCold
Weather Startingin theDrivingchapter.
Ethanol is more chemically active than gasoline. It corrodes some metals
and causes some plastic and rubber components to swell, break down or
Maintenance and care
258