2012 FORD F150 check engine

When AdvanceTracwith RSCperforms a normal system self-check,
some drivers may notice a slight movement of the brake, and/or a
rumble, grunting, or grinding noise after startup and when driving off.
When an event occurs that activates AdvanceTracwith RSCyou may
experience the following:
•A slight deceleration of the vehicle
•The stability control light will flash.
•A vibration in the pedal when your foot is on the brake pedal
•If the driving condition is severe and your foot is not on the brake, the
brake pedal may move as the systems applies higher brake forces. You
may also hear a whoosh of air from under the instrument panel during
this severe condition.
•The brake pedal may feel stiffer than usual.
Traction control system (TCS)
Traction control is a driver aid feature that helps your vehicle maintain
traction of the wheels, typically when driving on slippery and/or hilly
road surfaces, by detecting and controlling wheel spin.
Excessive wheel spin is controlled in two ways, which may work
separately or in tandem: engine traction control and brake traction
control. Engine traction control works to limit drive-wheel spin by
momentarily reducing engine power. Brake traction control works to limit
single wheel spin by momentarily applying the brakes to the wheel that
is slipping. Traction control is most active at low speeds.
During either engine or brake TCS events, the stability control light in
the instrument cluster will flash.
If the TCS is activated excessively in a short period of time, the braking
portion of the system may become temporarily disabled to allow the
brakes to cool down. In this situation, TCS will use only engine power
reduction or transfer to help control the wheels from over-spinning.
When the brakes have cooled down, the system will regain all features.
Anti-lock braking, RSC, and ESC are not affected by this condition and
will continue to function during the cool-down period.
The engine traction control and brake traction control system may be
deactivated in certain situations. But single wheel spin brake traction
control is always on. See theSwitching off AdvanceTracwith RSC
section following.
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Switching off AdvanceTracwith RSC
If the vehicle is stuck in snow, mud or sand, and seems to lose engine
power, switching off certain features of the AdvanceTracwith RSC
system may be beneficial because the wheels are allowed to spin. This
will restore full engine power and will enhance momentum through the
obstacle.
To switch off certain features of the AdvanceTracwith RSCsystem,
press the stability control button. Full features of the AdvanceTracwith
RSCsystem can be restored by pressing the button again or by turning
off and restarting the engine.
If you switch off the AdvanceTracwith RSCsystem, the stability
control off light will illuminate steadily. Pressing the stability control
button again will turn off the stability control off light.
In R (Reverse), ABS and the engine traction control and brake traction
control features will continue to function; however, ESC and RSCare
disabled.
AdvanceTracwith RSCFeatures
Button
functionsStability
control OFF
lightRSCESC TCS
Default at
start-upIlluminated
during bulb
checkEnabled Enabled Enabled
Button pressed
momentarilyIlluminated
solidEnabled Enabled
1Disabled1
Button pressed
and held for
more than
5 seconds at
vehicle speed
under 35 mph
(56 km/h)Flashes then
illuminated
solid
2Disabled Disabled Disabled4
Vehicle speed
exceeds 35 mph
(56 km/h) after
button is
pressed and
held for more
than 5 secondsIlluminated
solidEnabled Enabled
1Disabled1
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AdvanceTracwith RSCFeatures
Button
functionsStability
control OFF
lightRSCESC TCS
Button pressed
again after
deactivationNot
illuminatedEnabled Enabled Enabled
Transfer case
switched to
4WD Low
Locked
3
Illuminated Disabled Disabled Disabled4
1
TCS could be enabled but with higher entry thresholds compared to full
system. ESC entry thresholds are higher compared to full system.
2Lamp light starts blinking for three seconds after entering press and
hold state.
3Control switch is not pressed. Stability control light turned on when
4WD low locked transfer case mode selected.
4Engine traction control and two-wheel spin brake traction control
functions are disabled. Single wheel spin traction control is always
enabled.
Trailer sway control
Your vehicle is equipped with trailer sway control. When properly
equipped, trailer sway control will use the vehicle’s AdvanceTracwith
RSCsystem to detect and help reduce trailer sway by applying brake
force at individual wheels and, if necessary, by reducing engine power.
WARNING:Trailer sway control does not prevent a trailer from
swaying, it mitigates the sway from increasing once it has
occurred. If you are experiencing trailer sway it is likely that the trailer
is improperly loaded for the correct tongue weight or the speed of the
vehicle and trailer is too high. Pull the vehicle-trailer over to a safe
location to check the trailer weight distribution and tongue load and
reduce speed to a safe level while towing. If trailer sway is
experienced, SLOW DOWN.Note:When trailer sway control is
activated, cruise control is disabled.
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During trailer sway control events, the stability control light in the
instrument cluster will flash momentarily. The message center will also
displayTRAILER SWAY REDUCE SPEED.In some cases when trailer
sway is detected, the vehicle speed is too high and may be above a speed
at which trailer sway will not grow continuously. This may cause the
system to activate multiple times, causing a gradual reduction in speed.
Note:The trailer sway control will only activate at speeds greater than
31 mph (50 km/h).
Disabling trailer sway control
Trailer sway control can be disabled during any key cycle. See trailer
sway control under theMessage centerin theInstrument Cluster
chapter. Note that regardless of chosen enable state, trailer sway control
will be re-enabled at each new key cycle.
WARNING:Turning off trailer sway control increases the risk of
loss of vehicle control, serious injury, or death. Ford does not
recommend disabling this feature except in situations where speed
reduction may be detrimental (e.g., hill climbing), the driver has
significant trailer towing experience, and can control trailer sway and
maintain safe operation.
STEERING
3.7L, 5.0L and 3.5L EcoBoost™ engines:
Your vehicle is equipped with an electric power steering (EPS) 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. Under extreme usage conditions, the steering effort may
increase. 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 theDriver
Controlschapter for more information.
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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.
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 key 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.
6.2L engine:Your vehicle is equipped with a hydraulic steering system.
To help prevent damage to the power steering system, never hold the
steering wheel at its furthest turning points (until it stops) for more than
a few seconds when the engine is running. If the power steering system
breaks down (or if the engine is turned off), you can steer the vehicle
manually, but it takes more effort.
•Do not operate the vehicle with a low power steering pump fluid level
(below the MIN mark on the reservoir).
•Some noise is normal during operation. If excessive, check for low
power steering pump fluid level before seeking service by your
authorized dealer.
•Heavy or uneven steering efforts may be caused by low power steering
pump fluid level. Check for low power steering pump fluid level before
seeking service by your authorized dealer.
•Do not fill the power steering pump reservoir above the MAX mark on
the reservoir, as this may result in leaks from the reservoir.
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All engines
If the steering wanders or pulls equipped with either an EPS or a
hydraulic steering system, 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.
LIMITED-SLIP AXLE (IF EQUIPPED)
This axle provides added traction on slippery surfaces, particularly when
one wheel is on a poor traction surface. Under normal conditions, the
limited-slip axle functions like a standard rear axle. The axle may exhibit
a slight noise or vibration in tight turns with low vehicle speed. This is
normal behavior and indicates the axle is working.
Electronic locking differential (ELD) (if equipped)
The electronic locking differential provides added traction on slippery
and/or off-road surfaces, particularly when one wheel is on a poor
traction surface. In normal driving conditions, the rear axle functions as
a standard axle. The ELD may be locked or unlocked by the vehicle
operator. Refer toFour-wheel drive (4WD) operationsection in this
chapter for further details on ELD function and usage. When the axle is
unlocked, it will function like a standard rear axle. When the axle is
locked, it will not allow the rear wheels to rotate at different speeds
when turning. The ELD axle is not recommended for use on good
traction surfaces such as dry pavement. Doing so may result in abnormal
driving behavior while cornering and excessive tire wear.
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.
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Activating the electronic locking differential (ELD)
The ELD can be turned on by
pulling the 4WD control knob
toward you (4x4 vehicles) or by
turning the ELD control knob from
OFF to ON (4x2 vehicles).
Once the indicator light is displayed
in the message center, both rear
wheel axle shafts will be locked
together providing added traction.
If the indicator does not come on, or the indicator turns off while
driving, one of the following has occurred:
•The vehicle speed is too high.
•The left and right rear wheel speed difference is too high during an
engagement attempt.
•The system has malfunctioned and will be accompanied by aCHECK
LOCKING DIFFERENTIALmessage in the message center.
Note:If the ELD has difficulty disengaging, release the accelerator pedal
and turn the steering wheel in the opposite direction while rolling.
Basic operating principles
Do not use 4WD on dry, hard surfaced roads. Doing so will produce
excessive noise and vibration and increase tire wear. 4WD modes are
only intended for consistently slippery or loose surfaces.
Parking
On 4WD vehicles, when the transfer case is in the N (Neutral) position
for recreational towing purposes, the engine and transmission are
disconnected from the rest of the driveline. Therefore, the vehicle is free
to roll even if the automatic transmission is in P (Park) or the manual
transmission is in gear. Do not leave the vehicle unattended with the
transfer case in the N (Neutral) position. Always set the parking brake
fully and turn off the ignition when leaving the vehicle. Refer to
Recreational towingfor more information.
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FUEL PUMP SHUT-OFF
In the event of a moderate to severe collision, this vehicle is equipped
with a fuel pump shut-off feature that stops the flow of fuel to the
engine. Not every impact will cause a shut-off.
Should your vehicle shut off after a collision due to this feature, you may
restart your vehicle by doing the following:
1. Turn the ignition switch to the off position.
2. Turn the ignition switch to the on position.
In some instances the vehicle may not restart the first time you try to
restart and may take one additional attempt.
WARNING:Failure to inspect and if necessary repair fuel leaks
after a collision may increase the risk of fire and serious injury.
Ford Motor Company recommends that the fuel system be inspected
by an authorized dealer after any collision.
FUSES AND RELAYS
Fuses
If electrical components in the
vehicle are not working, a fuse may
have blown. Blown fuses are
identified by a broken wire within
the fuse. Check the appropriate
fuses before replacing any electrical
components.
Note:Always replace a fuse with one that has the specified amperage
rating. Using a fuse with a higher amperage rating can cause severe wire
damage and could start a fire.
Standard fuse amperage rating and color
COLOR
Fuse
ratingMini
fusesStandard
fusesMaxi
fusesCartridge
maxi
fusesFuse link
cartridge
2A Grey Grey — — —
3A Violet Violet — — —
4A Pink Pink — — —
15
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