light FORD EXPLORER SPORT TRAC 2009 Service Manual

Front safety belt usage sensors
The front safety belt usage sensors detect whether or not the driver and
front outboard passenger safety belts are fastened. This information
allows your Personal Safety Systemto tailor the airbag deployment and
safety belt pretensioner activation depending upon safety belt usage.
Front safety belt pretensioners
The safety belt pretensioners at the front outboard seating positions are
designed to tighten the safety belts firmly against the occupant’s body
during frontal collisions, and in side collisions and rollovers. This helps
increase the effectiveness of the safety belts. In frontal collisions, the
safety belt pretensioners can be activated alone or, if the collision is of
sufficient severity, together with the front airbags.
Front safety belt energy management retractors
The front outboard safety belt energy management retractors allow
webbing to be pulled out of the retractor in a gradual and controlled
manner in response to the occupant’s forward momentum. This helps
reduce the risk of force-related injuries to the occupant’s chest by
limiting the load on the occupant. Refer toEnergy management feature
section in this chapter.
Determining if the Personal Safety Systemis operational
The Personal Safety Systemuses a warning light in the instrument
cluster or a back-up tone to indicate the condition of the system. Refer
to theWarning lights and chimessection in theInstrument Cluster
chapter. Routine maintenance of the Personal Safety Systemis not
required.
The Restraints Control Module (RCM) monitors its own internal circuits
and the circuits for the airbag supplemental restraints, crash sensor(s),
safety belt pretensioners, front safety belt buckle sensors, front
passenger sensing system, and the driver seat position sensor. In
addition, the RCM also monitors the restraints warning light in the
instrument cluster. A difficulty with the system is indicated by one or
more of the following:
•The warning light will either flash or stay lit.
•The warning light will not illuminate immediately after the ignition is
turned on.
•A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and warning light are repaired.
If any of these things happen, even intermittently, contact your
authorized dealer as soon as possible. Unless serviced, the system may
not function properly in the event of a collision.
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Safety belt warning light and indicator chime
The safety belt warning light illuminates in the instrument cluster and a
chime sounds to remind the occupants to fasten their safety belts.
Conditions of operation
If... Then...
The driver’s safety belt is not
buckled before the ignition
switch is turned to the on
position...The safety belt warning light
illuminates 1-2 minutes and the
warning chime sounds 4-8 seconds.
The driver’s safety belt is
buckled while the indicator
light is illuminated and the
warning chime is sounding...The safety belt warning light and
warning chime turn off.
The driver’s safety belt is
buckled before the ignition
switch is turned to the on
position...The safety belt warning light and
indicator chime remain off.
Belt-Minder
The Belt-Minderfeature is a supplemental warning to the safety belt
warning function. This feature provides additional reminders by
intermittently sounding a chime and illuminating the safety belt warning
light in the instrument cluster when the driver’s and front passenger’s
safety belt is unbuckled.
The Belt-Minderfeature uses information from the front passenger
sensing system to determine if a front seat passenger is present and
therefore potentially in need of a warning. To avoid activating the
Belt-Minderfeature for objects placed in the front passenger seat,
warnings will only be given to large front seat occupants as determined
by the front passenger sensing system.
Both the driver’s and passenger’s safety belt usages are monitored and
either may activate the Belt-Minderfeature. The warnings are the same
for the driver and the front passenger. If the Belt-Minderwarnings have
expired (warnings for approximately five minutes) for one occupant
(driver or front passenger), the other occupant can still activate the
Belt-Minderfeature.
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When the Belt-Minderfeature is activated, the safety belt warning light
illuminates and the warning chime sounds for six seconds every
30 seconds, repeating for approximately five minutes or until the safety
belts are buckled.
The Belt-Minderfeature uses two different warning chimes. During the
first minute of activation, the warning chime will sound once every
second. The remaining warning chimes will sound twice every second
while the system is activated.
If... Then...
The driver’s and front
passenger’s safety belts are
buckled before the ignition
switch is turned to the on
position or less than
1-2 minutes have elapsed since
the ignition switch has been
turned on...The Belt-Minderfeature will not
activate.
The driver’s or front
passenger’s safety belt is not
buckled when the vehicle has
reached at least 3 mph
(5 km/h) and 1-2 minutes have
elapsed since the ignition
switch has been turned to on...The Belt-Minderfeature is activated
- the safety belt warning light
illuminates and the warning chime
sounds for six seconds every
30 seconds, repeating for
approximately five minutes or until
the safety belts are buckled.
The driver’s or front
passenger’s safety belt becomes
unbuckled for approximately
1 minute while the vehicle is
traveling at least 3 mph
(5 km/h) and more than
1-2 minutes have elapsed since
the ignition switch has been
turned to on...The Belt-Minderfeature is activated
- the safety belt warning light
illuminates and the warning chime
sounds for six seconds every
30 seconds, repeating for
approximately five minutes or until
the safety belts are buckled.
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The following are reasons most often given for not wearing safety belts
(All statistics based on U.S. data):
Reasons given... Consider...
“Crashes are rare events”36700 crashes occur every day.The more we
drive, the more we are exposed to “rare”
events, even for good drivers.1in4ofuswill
be seriously injured in a crash during our
lifetime.
“I’m not going far”3of4fatal crashes occur within25miles
(40 km) of home.
“Belts are uncomfortable” We design our safety belts to enhance comfort.
If you are uncomfortable - try different
positions for the safety belt upper anchorage
and seatback which should be as upright as
possible; this can improve comfort.
“I was in a hurry”Prime time for an accident.Belt-Minder
reminds us to take a few seconds to buckle up.
“Safety belts don’t work”Safety belts,when used properly,reduce risk
of deathto front seat occupants by45% in
cars,and by60% in light trucks.
“Traffic is light”Nearly 1 of 2 deaths occur in single-vehicle
crashes,many when no other vehicles are
around.
“Belts wrinkle my
clothes”Possibly, but a serious crash can do much more
than wrinkle your clothes, particularly if you are
unbelted.
“The people I’m with
don’t wear belts”Set the example, teen deaths occur 4 times
more often in vehicles with TWO or MORE
people. Children and younger brothers/sisters
imitate behavior they see.
“I have an airbag” Airbags offer greater protection when used with
safety belts. Frontal airbags are not designed to
inflate in rear and side crashes or rollovers.
“I’d rather be thrown
clear”Not a good idea.Peoplewho areejected are
40 times more likely to DIE.Safety belts
help prevent ejection, WE CAN’T “PICK OUR
CRASH”.
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WARNING:While the design allows you to deactivate your
Belt-Minder, this system is designed to improve your chances of
being safely belted and surviving an accident. We recommend you
leave the Belt-Mindersystem activated for yourself and others who
may use the vehicle. To reduce the risk of injury, do not
deactivate/activate the Belt-Minderfeature while driving the vehicle.
1. Turn the ignition switch to the on position. DO NOT START THE
ENGINE.
2. Wait until the safety belt warning light turns off (Approximately one
minute).
•Step 3 must be completed within 50 seconds after the safety belt
warning light turns off.
3. For the seating position being disabled, at a moderate speed, buckle
then unbuckle the safety belt nine times, ending in the unbuckled state.
Step 3 must be completed within 50 seconds after the safety belt
warning light turns off.
•After Step 3, the safety belt warning light will be turned on for three
seconds.
4. Within approximately seven seconds of the light turning off, buckle
then unbuckle the safety belt.
•This will disable the Belt-Minderfeature for that seating position if it
is currently enabled. As confirmation, the safety belt warning light will
flash four times per second for three seconds.
•This will enable the Belt-Minderfeature for that seating position if it
is currently disabled. As confirmation, the safety belt warning light will
flash four times per second for three seconds, followed by three
seconds with the light off, then followed by the safety belt warning
light flashing four times per second for three seconds again.
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WARNING:Never place your arm over the airbag module as a
deploying airbag can result in serious arm fractures or other
injuries.
To properly position yourself away from the airbag:
•Move your seat to the rear as far as you can while still reaching the
pedals comfortably.
•Recline the seat slightly one or two degrees from the upright position.
WARNING:Do not put anything on or over the airbag module.
Placing objects on or over the airbag inflation area may cause
those objects to be propelled by the airbag into your face and torso
causing serious injury.
WARNING:Do not attempt to service, repair, or modify the
airbag supplemental restraint systems or its fuses. Contact your
authorized dealer as soon as possible.
WARNING:Modifications to the front end of the vehicle,
including frame, bumper, front end body structure and non-Ford
tow hooks may effect the performance of the airbag sensors increasing
the risk of injury. Do not modify the front end of the vehicle with
anything other than authorized Ford accessories for your vehicle.
WARNING:Additional equipment may affect the performance of
the airbag sensors increasing the risk of injury.
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•one or more impact and safing sensors.
•a readiness light and tone.
•diagnostic module.
•and the electrical wiring which connects the components.
•Front passenger sensing system. Refer toFront passenger sensing
systemlater in this chapter.
•“Passenger airbag off” or “pass airbag off” indicator lamp. Refer to
Front passenger sensing systemlater in this chapter.
The diagnostic module monitors its own internal circuits and the
supplemental airbag electrical system wiring (including the impact
sensors), the system wiring, the airbag system readiness light, the airbag
back up power and the airbag ignitors.
Front passenger sensing system
The front passenger sensing system is designed to meet the regulatory
requirements of Federal Motor Vehicle Safety Standard (FMVSS) 208
and is designed to disable (will not inflate) the front passenger’s frontal
airbag under certain conditions.
The front passenger sensing system works with sensors that are part of
the front passenger’s seat and safety belt. The sensors are designed to
detect the presence of a properly seated occupant and determine if the
front passenger’s frontal airbag should be enabled (may inflate) or
disabled (will not inflate).
The front passenger sensing system will disable (will not inflate) the
front passenger’s frontal airbag if:
•the front passenger seat is unoccupied, or has small/medium objects in
the front seat.
•the system determines that an infant is present in a rear-facing infant
seat that is installed according to the manufacturer’s instructions.
•the system determines that a small child is present in a forward-facing
child restraint that is installed according to the manufacturer’s
instructions.
•the system determines that a small child is present in a booster seat.
•a front passenger takes his/her weight off of the seat for a period of
time.
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ObjectsPass Airbag Off
Indicator LampPassenger Airbag
Small (i.e. three-ring binder,
small purse, bottled water)Unlit Disabled
Medium (i.e. heavy briefcase,
fully packed luggage)Lit Disabled
Empty seat, or small to
medium object with safety
belt buckledLit Disabled
If you think that the status of the passenger airbag off indicator lamp is
incorrect, check for the following:
•Objects lodged underneath the seat
•
Objects between the seat cushion and the center console (if equipped)
•Objects hanging off the seat back
•Objects stowed in the seatback map pocket (if equipped)
•Objects placed on the occupant’s lap
•Cargo interference with the seat
•Other passengers pushing or pulling on the seat
•Rear passenger feet and knees resting or pushing on the seat
•Check to see if the clear objects by pass seat warning is displaying in
the message center. Refer toMessage centerin theDriver controls
chapter.
The conditions listed above may cause the weight of a properly seated
occupant to be incorrectly interpreted by the front passenger sensing
system. The person in the front passenger seat may appear heavier or
lighter due to the conditions described in the list above.
WARNING:To reduce the risk of possible serious injury:
Do not stow objects in seat back map pocket (if equipped) or
hang objects off seat back if a child is in the front passenger seat.
Do not place objects underneath the front passenger seat or between
the seat and the center console (if equipped).
Check the “passenger airbag off” or “pass airbag off” indicator lamp for
proper airbag Status.
Failure to follow these instructions may interfere with the front
passenger seat sensing system.
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In case there is a problem with the
front passenger sensing system, the
airbag readiness lamp in the
instrument cluster will stay lit.
If the airbag readiness lamp is lit, do the following:
The driver and/or adult passengers should check for any objects that
may be lodged underneath the front passenger seat or cargo interfering
with the seat.
If objects are lodged and/or cargo is interfering with the seat; please take
the following steps to remove the obstruction:
•Pull the vehicle over.
•Turn the vehicle off.
•Driver and/or adult passengers should check for any objects lodged
underneath the front passenger seat or cargo interfering with the seat.
•Remove the obstruction(s) (if found).
•Restart the vehicle.
•Wait at least two minutes and verify that the airbag readiness lamp is
no longer illuminated
•If the airbag readiness lamp remains illuminated, this may or may/not
be a problem due to the front passenger sensing system.
DO NOT attempt to repair or service the system; contact your authorized
dealer as soon as possible.
If it is necessary to modify an advanced front airbag system to
accommodate a person with disabilities, contact the Ford Customer
Relationship Center at the phone number shown in theCustomer
Assistancechapter of thisOwner’s Guide.
WARNING:Any alteration/modification to the front passenger
seat may affect the performance of the front passenger sensing
system.
Determining if the system is operational
The SRS uses a readiness light in the instrument cluster or a tone to
indicate the condition of the system. Refer toAirbag readinesssection
in theInstrument Clusterchapter. Routine maintenance of the airbag is
not required.
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A difficulty with the system is indicated by one or more of the following:
•The readiness light will either
flash or stay lit.
•The readiness light will not
illuminate immediately after
ignition is turned on.
•A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and/or light are repaired.
If any of these things happen, even intermittently, contact your
authorized dealer as soon as possible. Unless serviced, the system may
not function properly in the event of a collision.
Seat-mounted side airbag system
WARNING:Do not place objects or mount equipment on or
near the airbag cover on the side of the seatbacks of the front
seats or in front seat areas that may come into contact with a
deploying airbag. Failure to follow these instructions may increase the
risk of personal injury in the event of a collision.
WARNING:Do not use accessory seat covers. The use of
accessory seat covers may prevent the deployment of the side
airbags and increase the risk of injury in an accident.
WARNING:Do not lean your head on the door. The side airbag
could injure you as it deploys from the side of the seatback.
WARNING:Do not attempt to service, repair, or modify the
airbag SRS, its fuses or the seat cover on a seat containing an
airbag. Contact your authorized dealer as soon as possible.
WARNING:All occupants of the vehicle should always wear
their safety belts even when an airbag SRS is provided.
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