2017 FORD EXPEDITION wiring

Restraint Safety System
The restraint safety system provides an
improved overall level of frontal crash
protection to front seat occupants and is
designed to help further reduce the risk of
airbag-related injuries. The system is able
to analyze different occupant conditions
and crash severity before activating the
appropriate safety devices to help better
protect a range of occupants in a variety
of frontal crash situations.
Your vehicle restraint safety system
consists of:
•
Driver and passenger dual-stage airbag
supplemental restraints.
• Front outboard safety belts with
pretensioners, energy management
retractors (first row only), and safety
belt usage sensors.
• Driver seat position sensor.
• Front crash severity sensors.
• Restraints control module with impact
and safing sensors.
• Restraint system warning light and
backup tone.
• The electrical wiring for the airbags,
crash sensor(s), safety belt
pretensioners, front safety belt usage
sensors, driver seat position sensor, and
indicator lights.
How does the restraint safety system
work?
The restraint safety system can adapt the
deployment strategy of your vehicle ’s
safety devices according to crash severity
and occupant conditions. A collection of
crash and occupant sensors provides
information to the restraints control module. During a crash, the restraints
control module may activate the safety
belt pretensioners and/or either one or
both stages of the dual-stage airbag
supplemental restraints based on crash
severity and occupant conditions.
DRIVER AND PASSENGER
AIRBAGS
WARNINGS
Never place your arm or any objects
over an airbag module. Placing your
arm over a deploying airbag can
result in serious arm fractures or other
injuries. Objects placed 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. Airbags can kill or injure a child in a
child seat. Never place a rear-facing
child seat in front of an active airbag.
If you must use a forward-facing child seat
in the front seat, move the seat upon which
the child seat is installed all the way back. The driver and passenger front airbags will
deploy during significant frontal and near
frontal crashes.
The driver and passenger front airbag
system consists of:
•
Driver and passenger airbag modules.
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Towing
List of named trailers — Hold
OK to Delete
Delete Trailer
Naming Editor
Add Trailer
Ball Coupler Connected and Locked?
Connection Checklist
Electrical Wiring Connect?
Lights Function Correctly?
Safety Chains Connected?
Tongue Jack Raised?
Mirrors Adjusted?
TBC gain setting adjusted?
Trailer Disconnected?
Go to start of Add Trailer Process
Trailer Setup
Off Road
In this mode, you can view different off
road information. Off Road
Pitch, Steering Angle and Roll
Power Distribution Gauge – Displays the power distribution to the front and rear axles.
The display varies based on 4x4 configuration and driving conditions.
Settings
In this mode, you can configure different
driver setting choices. Note:
Some items are optional and may
not appear.
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Towing
Press OK to change the
selected trailer
Rename Trailer
Change Trailer Settings
Reset Trailer Mileage
Delete Trailer
Naming Editor
Add Trailer
Trailer Setup
Ball Coupler Connected and Locked?
Connection Checklist
Electrical Wiring Connect?
Lights Function Correctly?
Safety Chains Connected?
Tongue Jack Raised?
Mirrors Adjusted?
TBC gain setting adjusted?
Trailer disconnected?
Off Road
In this mode, you can view different off
road information. Off Road
Off Road Status (Pitch, Roll, Wheel Angle)
Power Distribution Gauge – Displays the power distribution to the front and rear axles.
The display varies based on 4x4 configuration and driving conditions.
Settings
In this mode, you can configure different
driver setting choices. Note:
Some items are optional and may
not appear.
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Action
Message
Displays when a trailer connection becomes discon-
nected, either intentionally or unintentionally, and the
system senses it during a given ignition cycle. Disregard
this status if your vehicle is not equipped with a factory installed trailer brake controller. This message may
appear when an aftermarket TBC is used even when the trailer is connected.
Trailer Disconnected
Displays when the trailer sway control detects trailersway.
Trailer Sway Reduce Speed
Displays if there are certain faults in your vehicle wiringand the trailer wiring or brake system.
Wiring Fault On Trailer
Displays the current gain setting from the trailer brake.
Trailer Brake Gain XX.X
There is a fault with your vehicle trailer lighting module.See Towing a Trailer (page 203).
Trailer Lighting Module Fault
See Manual
There is a fault with your trailer stop lamp. Check your lamp.
Trailer Stop Lamps Fault Check
Lamps
There is a fault with your trailer turn lamp. Check your lamp.
Trailer Left Turn Lamps Fault
Check Lamps
There is a fault with your trailer turn lamp. Check yourlamp.
Trailer Right Turn Lamps Fault
Check Lamps
There is a fault with your trailer park lamp. Check yourlamp.
Trailer Park Lamps Fault Check
Lamps
There is a fault with your trailer battery. See
Towing
a Trailer (page 203).
Trailer Battery Not Charging See
Manual
Transmission Messages Action
Message
Displays as a reminder to shift into park (P).
Transmission not in Park
Displays when the transfer case is NOT in the neutral position.The message indicates that your vehicle is NOT safe to tow with all four wheels on the ground.
Neutral Tow Disabled
Displays when the transfer case is in the neutral position. Themessage indicates that your vehicle is safe to tow with all four wheels on the ground.
Neutral Tow Enabled
Leave Transmission In Neutral
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Note:
Certain states require
electric trailer brakes for trailers
over a specified weight. Be sure to
check state regulations for this
specified weight. The maximum
trailer weights listed may be limited
to this specified weight, as the
vehicle ’s electrical system may not
include the wiring connector
needed to activate electric trailer
brakes.
Your vehicle may tow a trailer
provided the maximum trailer
weight is less than or equal to the
maximum trailer weight listed for
your vehicle configuration on the
following chart. To calculate the maximum loaded
trailer weight for your vehicle:
1. Start with the gross combined
weight rating for your vehicle
model and axle ratio. See the
following chart.
2. Subtract all of the following
that apply to your vehicle:
•Vehicle curb weight
• Hitch hardware weight, such
as a draw bar, ball, locks or
weight distributing
• Driver weight
• Passenger(s) weight
• Payload, cargo and luggage
weight
• Aftermarket equipment
weight.
3. This equals the maximum
loaded trailer weight for this
combination.
Note: The trailer tongue load
figures into the payload for your
vehicle. Reduce the total payload
by the final trailer tongue weight.
Consult an authorized dealer to
determine the maximum trailer
weight allowed for your vehicle if
you are not sure. Maximum GCWR
Towing Package
Vehicle Type
12300 lb (5579 kg)
Standard
Two-wheel drive
(except EL)
12500 lb (5669 kg)
Two-wheel drive EL
12500 lb (5669 kg)
Four-wheel drive
(except EL)
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ESSENTIAL TOWING CHECKS
Follow these guidelines for safe towing:
•
Do not tow a trailer until you drive your
vehicle at least 1000 miles (1600
kilometers).
• Consult your local motor vehicle laws
for towing a trailer.
• See the instructions included with
towing accessories for the proper
installation and adjustment
specifications.
• Service your vehicle more frequently if
you tow a trailer. See your scheduled
maintenance information.
• If you use a rental trailer, follow the
instructions the rental agency gives
you.
See Load limits in the Load Carrying
chapter for load specification terms found
on the tire label and Safety Compliance
label and instructions on calculating your
vehicle's load.
Remember to account for the trailer
tongue weight as part of your vehicle load
when calculating the total vehicle weight.
Trailer Towing Connector
(Vehicles with a Trailer Towing
Package and 7 –Pin Connector) When attaching the trailer wiring connector
to your vehicle, only use a proper fitting
connector that works with the vehicle and
trailer functions. Some seven-position
connectors may have the SAE J2863 logo,
which confirms that it is the proper wiring
connector and works correctly with your
vehicle.
Function
Color
Left turn signal and stop lamp
Yellow
Ground (-)
White
Electric brakes
Blue
Right turn signal and stop
lamp
Green
Battery (+)
Orange
Running lights
Brown
Reverse lights
Grey
Hitches WARNING
The trailer hitch on this vehicle is part
of the vehicle rear crash safety
structure. Do not remove the trailer
hitch. Failure to follow this warning could
compromise vehicle crash structure and
increase the risk of injury in a rear end
crash. Do not use a hitch that either clamps onto
the bumper or attaches to the axle.
Distribute the trailer load so 10-15% of the
total trailer weight is on the tongue.
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The controller shows gain setting, output
bar graph, and trailer connectivity status
in the information display. They appear in
the information display as follows:
•
Trailer Brake Controller Gain (without
trailer connected): Shows the current
gain setting during a given ignition cycle
and when adjusting the gain. This also
displays if you use the manual control
lever or make gain adjustments with
no trailer connected.
• Trailer Brake Controller Gain Output:
Displays when you push your vehicle's
brake pedal, or upon use of the manual
control. Bar indicators illuminate in the
information display to indicate the
amount of power going to the trailer
brakes relative to the brake pedal or
manual control input. One bar indicates
the least amount of output; six bars
indicate maximum output.
• Trailer Connected: Displays when the
system senses a correct trailer wiring
connection (a trailer with electric trailer
brakes) during a given ignition cycle.
• Trailer Disconnected: Displays,
accompanied by a single audible time,
when the system senses a trailer
connection and then a disconnection,
either intentional or unintentional,
during a given ignition cycle. It also
displays if a truck or trailer-wiring fault
occurs causing the trailer to appear
disconnected. This message can also
display if you use the manual control
lever without a trailer connected. After
disconnecting the trailer connector,
press the brake pedal for
approximately five seconds to allow
the system to detect and update the
trailer status. B: Manual control lever: Slide the control
lever to the left to turn on the trailer's
electric brakes independent of the tow
vehicle's. See the following Procedure for
adjusting gain section for instructions on
proper use of this feature. If you use the
manual control while the brake is also
applied, the greater of the two inputs
determines the power sent to the trailer
brakes.
• Stop lamps: Using the manual control
lever illuminates both the trailer brake
lamps and your vehicle brake lamps
except the center high-mount stop
lamp, if you make the proper electrical
connection to the trailer. Pressing your
vehicle brake pedal also illuminates
both trailer and vehicle brake lamps.
Procedure for Adjusting Gain
Note: Only perform this procedure in a
traffic-free environment at speeds of
approximately 20-25 mph (30-40 km/h).
The gain setting sets the trailer brake
controller for the specific towing condition.
You should change the setting as towing
conditions change. Changes to towing
conditions include trailer load, vehicle load,
road conditions and weather.
The gain should be set to provide the
maximum trailer braking assistance while
making sure the trailer wheels do not lock
when using the brakes. Locked trailer
wheels may lead to trailer instability.
1. Make sure the trailer brakes are in good
working condition, functioning normally
and properly adjusted. See your trailer
dealer if necessary.
2. Hook up the trailer and make the electrical connections according to the
trailer manufacturer's instructions.
3. When you plug in a trailer with electric or electric-over-hydraulic brakes, a
message confirming connection
appears in the information display.
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4. Use the gain adjustment (+ and -)
buttons to increase or decrease the
gain setting to the desired starting
point. A gain setting of 6.0 is a good
starting point for heavier loads.
5. In a traffic-free environment, tow the trailer on a dry, level surface at a speed
of 20-25 mph (30-40 km/h) and
squeeze the manual control lever
completely.
6. If the trailer wheels lock up, indicated by squealing tires, reduce the gain
setting. If the trailer wheels turn freely,
increase the gain setting. Repeat Steps
5 and 6 until the gain setting is at a
point just below trailer wheel lock-up.
If towing a heavier trailer, trailer wheel
lock-up may not be attainable even
with the maximum gain setting of 10.
Explanation of Information Display
Warning Messages
Note: An authorized dealer can diagnose
the trailer brake controller to determine
exactly which trailer fault has occurred.
However, your Ford warranty does not cover
this diagnosis if the fault is with the trailer.
A message indicating a trailer brake
module fault may display in response to
faults sensed by the trailer brake controller,
accompanied by a single tone. If this
message appears, contact an authorized
dealer as soon as possible for diagnosis
and repair. The controller may still
function, but performance may be
degraded.
A message indicating a trailer wiring fault
may display when there is a short circuit
on the electric brake output wire. If this
message displays, accompanied by a
single tone, with no trailer connected, the
problem is with your vehicle wiring
between the trailer brake controller and
the 7-pin connector at the bumper. If the
message only displays with a trailer
connected, the problem is with the trailer wiring. Consult your trailer dealer for
assistance. This can be a short to ground
(such as a chaffed wire), short to voltage
(such as a pulled pin on trailer emergency
breakaway battery) or the trailer brakes
may be drawing too much current.
Points to Remember
Note:
Do not attempt removal of the trailer
brake controller without consulting the
Workshop Manual. Damage to the unit may
result.
• Adjust gain setting before using the
trailer brake controller for the first time.
• Adjust gain setting, using the procedure
above, whenever road, weather and
trailer or vehicle loading conditions
change from when the gain was initially
set.
• Only use the manual control lever for
proper adjustment of the gain during
trailer setup. Misuse, such as
application during trailer sway, could
cause instability of trailer or tow
vehicle.
• Avoid towing in adverse weather
conditions. The trailer brake controller
does not provide anti-lock control of
the trailer wheels. Trailer wheels can
lock up on slippery surfaces, resulting
in reduced stability of trailer and tow
vehicle.
• The trailer brake controller is equipped
with a feature that reduces output at
vehicle speeds below 11 mph (18 km/h)
so trailer and vehicle braking is not jerky
or harsh. This feature is only available
when applying the brakes using your
vehicle's brake pedal, not the
controller.
• The controller interacts with the brake
control system and powertrain control
system of your vehicle to provide the
best performance on different road
conditions.
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