2012 FORD EXPLORER power steering

•At speeds above 20 mph (32 km/h): When the HDC button is pressed,
the HDC system will be enabled, the light on the button will be
illuminated, and FOR HILL CNTRL, 20 MPH OR LESS will be
displayed in the message center for several seconds.
•For HDC to enable, the vehicle must be in a drive gear or (R)
Reverse. If the vehicle is in P (Park) or N (Neutral) and the HDC
button is pressed, FOR HILL CNTRL, SELECT GEAR will be displayed
in the message center for several seconds.
Refer toMessage centerin theInstrument Clusterchapter for hill
descent control messages.
STEERING
Your vehicle is equipped with an electric power-assisted steering (EPAS)
system. There is no fluid reservoir to check or fill.
If your vehicle loses electrical power while you are driving (or if the
ignition is turned off), you can steer the vehicle manually, but it takes
more effort. Extreme continuous steering may increase the effort it takes
for you to steer. This occurs to prevent overheating and permanent
damage to your steering system. If this should occur, you will neither
lose the ability to steer the vehicle manually nor will it cause permanent
damage. Typical steering and driving maneuvers will allow the system to
cool and steering assist will return to normal.
The EPS system has diagnostic checks that continuously monitor the
EPS system to ensure proper operation. When a system error is
detected, the following message SERVICE POWER STEERING, SERVICE
POWER STEERING NOW or POWER STEERING ASSIST FAULT may
display in the message center. Refer to theMessage centerin the
Instrument Clusterchapter for more information.
WARNING:The EPS system has diagnostics checks that
continuously monitor the EPS system to ensure proper operation
of the electronic system. When an electronic error is detected, the
message POWER STEERING ASSIST FAULT will be displayed in the
message center. If this happens, stop the vehicle in a safe place, and
turn off the engine. After at least 10 seconds, reset the system by
restarting the engine, and watch the message center for POWER
STEERING ASSIST FAULT. If the message returns, or returns while
driving, take the vehicle to your dealer to have it checked. With the
message displayed, the steering assist is turned off, making the vehicle
harder to steer.
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WARNING:If the message SERVICE POWER STEERING is
displayed in the message center, the EPS system has detected a
problem with the system function. On the next ignition cycle, the
message SERVICE POWER STEERING NOW will be displayed and
steering assist will be removed until the steering system is serviced.
Have your vehicle taken to the nearest dealer as soon as possible.
If the steering wanders or pulls, check for:
•an improperly inflated tire.
•uneven tire wear.
•loose or worn suspension components.
•loose or worn steering components.
•improper steering alignment.
A high crown in the road or high crosswinds may also make the steering
seem to wander/pull.
PREPARING TO DRIVE
WARNING:Utility vehicles have a significantly higher rollover
rate than other types of vehicles.
WARNING:In a rollover crash, an unbelted person is
significantly more likely to die than a person wearing a seat belt.
Utility vehicles and trucks have larger tires and increased ground
clearance, giving the vehicle a higher center of gravity than a passenger
car.
WARNING:Vehicles with a higher center of gravity such as
utility vehicles and trucks handle differently than vehicles with a
lower center of gravity. Utility vehicles and trucks arenotdesigned for
cornering at speeds as high as passenger cars any more than low-slung
sports cars are designed to perform satisfactorily under off-road
conditions. Avoid sharp turns, excessive speed or abrupt maneuvers in
these vehicles. Failure to drive cautiously could result in an increased
risk of loss of vehicle control, vehicle rollover, personal injury and
death.
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Trailer tow false alerts
When towing a trailer, the sensors may detect the trailer thus causing a
false alert. It may be desirable to turn the BLISoff if the false alerts
become annoying.
Day and night brightness
The BLISand/or CTA alert will automatically dim when the headlamp
switch is in PARK, ON, or AUTO ON and night time darkness has been
detected by the sun sensor.
FOUR WHEEL DRIVE (4WD) SYSTEM (IF EQUIPPED)
WARNING:For important information regarding safe operation
of this type of vehicle, seePreparing to drive your vehiclein
this chapter.
Your vehicle is equipped with an intelligent 4WD system that
continuously monitors vehicle conditions and automatically adjusts the
power distribution between the front and rear wheels. It combines
transparent all-surface operation with highly capable four-wheel drive.
The 4WD system is always active and requires no driver input. It is
capable of handling all road conditions, including street and highway
driving as well as off-road and winter driving. The driver can optimize
the 4WD by moving the TMS switch for the correct terrain. SeeTerrain
managementlater in this chapter.
Driving off-road with truck and utility vehicles
4WD vehicles are specially equipped for driving on sand, snow, mud and
rough terrain and have operating characteristics that are somewhat
different from conventional vehicles, both on and off the road.
How your vehicle differs from other vehicles
Truck and utility vehicles can differ from some other vehicles. Your
vehicle may be higher to allow it to travel over rough terrain without
getting hung up or damaging underbody components.
The differences that make your vehicle so versatile also make it handle
differently than an ordinary passenger car.
Maintain steering wheel control at all times, especially in rough terrain.
Since sudden changes in terrain can result in abrupt steering wheel
motion, make sure you grip the steering wheel from the outside. Do not
grip the spokes.
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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; instead,
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 cannot turn and if
they are not turning, you will not be
able to steer. The front wheels have to be turning in order to steer the
vehicle.
Since your vehicle has anti-lock brakes, apply the brakes steadily. Do not
“pump” the brakes.
Driving on snow and ice
WARNING:If you are driving in slippery conditions that require
tire chains or cables, then it is critical that you drive cautiously.
Keep speeds down, allow for longer stopping distances and avoid
aggressive steering to reduce the chances of a loss of vehicle control
which can lead to serious injury or death. If the rear end of the vehicle
slides while cornering, steer in the direction of the slide until you
regain control of the vehicle.
4WD 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 a 4WD vehicle may accelerate
better than a two-wheel drive vehicle in snow and ice, it won’t stop any
faster, because as in other vehicles, braking occurs at all four wheels. Do
not become overconfident as to road conditions.
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
9 10A 4” Radio display, Power liftgate
logic, Electronic finish panel,
SYNCBase Module
10 10A Run/accessory relay (wipers, rear
washer), Rain sensor
11 10A Instrument cluster, Heads-up
display
12 15A Interior courtesy lamps (overhead
console, 2nd row, cargo), Puddle
lamps, Console bin LED,
Backlighting
13 15A Right turn lamps, Right trailer tow
(TT) turn/stop lamps
14 15A Left turn lamps, Left TT turn/stop
lamps
15 15A Reverse lamps, Stop lamps,
High-mounted stop lamp
16 10A Low beam headlamps (right)
17 10A Low beam headlamps (left)
18 10A Keypad illumination, Brake shift
interlock (BSI), Start button run
indicator, Passive anti-theft
system (PATS), Powertrain
control module (PCM) wake-up,
Rear seat power enable
19 20A Memory seat power
20 20A Locks
21 10A Intelligent access (IA), Keypad
22 20A Horn relay
23 15A Steering wheel control module,
IA, Headlamp switch
24 15A Datalink connector, Steering
wheel control module
Roadside Emergencies
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Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
76 — Not used
77 — TT park lamps relay
78 20A* Right HID headlamps
79 5A* Adaptive cruise control (ACC)
80 — Not used
81 — Not used
82 15A* Rear washer
83 — Not used
84 20A* TT park lamps
85 — Not used
86 7.5A* PCM keep-alive power, PCM relay,
Canister vent solenoid
87 5A* Run/start
88 — Run/start relay
89 5A* Front blower relay coil, Electrical
Power Assist Steering (EPAS)
module
90 10A* PCM, TCM, ECM (2.0L engine)
91 10A* ACC
92 10A* ABS module, Plant EVAC and fill
93 5A* Rear blower motor, Rear defroster,
TT battery charge relays
94 30A** Passenger compartment fuse panel
run/start
95 — Not used
96 — Not used
97 — Not used
98 — A/C clutch relay
*Mini Fuses **Cartridge Fuses
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How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature gauge will move to the red (hot)
area.
•The coolant temperature warning light
will illuminate.
•The service engine soon
indicator will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
When this occurs the vehicle will still operate. However:
•The engine power will be limited.
•The air conditioning system will be disabled.
Continued operation will increase the engine temperature and the engine
will completely shut down, causing steering and braking effort to
increase.
Once the engine temperature cools, the engine can be re-started. Take
your vehicle to an authorized dealer as soon as possible to minimize
engine damage.
When fail-safe mode is activated
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high-speed
operation and the engine will run rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage, therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
2. Arrange for the vehicle to be taken to an authorized dealer.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
WARNING:Fail-safe mode is for use during emergencies only.
Operate the vehicle in fail-safe mode only as long as necessary to
bring the vehicle to rest in a safe location and seek immediate repairs.
When in fail-safe mode, the vehicle will have limited power, will not be
able to maintain high-speed operation, and may completely shut down
without warning, potentially losing engine power, power steering assist,
and power brake assist, which may increase the possibility of a crash
resulting in serious injury.
Maintenance and Specifications
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Multi-point inspection
In order to keep your vehicle running right, it is important to have the
systems on your vehicle checked regularly. This can help identify
potential issues and prevent major problems. Ford Motor Company
recommends the following multi-point inspection be performed at every
scheduled maintenance interval to help ensure your vehicle keeps
running great.
Multi-point inspection – Recommended each visit
Accessory drive belt(s) Half-shaft dust boots (if equipped)
Battery performance Horn operation
Clutch operation (if equipped) Radiator, cooler, heater and A/C hoses
Engine air filter Suspension component for leaks or
damage
Exhaust system Steering and linkage
Exterior lamps and hazard
warning system operationTires for wear and proper pressure,
including spare
Fluid levels*; fill if necessary Windshield for cracks, chips or pits
For oil and fluid leaks Washer spray and wiper operation
*Brake, coolant recovery reservoir, manual and automatic transmission
(with an underhood dipstick), power steering (if equipped) and
window washer
Be sure to ask your dealership service advisor or technician about the
multi-point vehicle inspection. It’s a comprehensive way to perform a
thorough inspection of your vehicle. It’s your checklist that gives you
immediate feedback on the overall condition of your vehicle. You’ll know
what’s been checked, what’s okay, as well as those things that may
require future or immediate attention. The multi-point vehicle inspection
is one more way to keep your vehicle running great!
Scheduled Maintenance
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