2006 FORD F250 SUPER DUTY wiring

Replacing cargo lamp and high-mount brakelamp bulbs
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the two screws and lamp
assembly from vehicle as wiring
permits.
3. Remove the bulb socket by
rotating counterclockwise.
4. Pull the bulb straight out of the
socket.
Front clearance and identification lamp bulbs
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the screw and lens from
the lamp assembly.
3. Pull the bulb straight out of the
socket.
Install the bulb(s) in reverse order.
Replacing foglamp bulbs (if equipped)
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the bulb socket from the
foglamp by turning
counterclockwise.
3. Disconnect the electrical connector from the foglamp bulb.
Install the new bulb(s) in reverse order.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)Lights
52

The relays and fuse in the glove box are coded as shown in the
accompanying illustration.
There will also be one power lead
for each switch found as a blunt-cut
and sealed wire located behind the
passenger compartment fuse panel.
They are coded as follows:
Switch Circuit number Wire color Fuse
AUX 1 1936 Orange with
Light Green
Trace 30A
AUX 2 1933 Orange 30A
AUX 3 1934 Orange with
Yellow Trace 10A
AUX 4 1935 Orange with
Light Blue Trace 10A
More detailed information about the Upfitter switches can be found in
the Electrical Wiring section of the Ford Truck Body Builders Layout
Book , found at www.fleet.ford.com/truckbbas.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus) Driver Controls
65

If the air bag has deployed, the air bag will not function
again and must be replaced immediately. If the air bag is not
replaced, the unrepaired area will increase the risk of injury in a
collision.
The SRS consists of:
• driver and passenger airbag modules (which include the inflators and
airbags),
• one or more impact and safing sensors,
• a readiness light and tone
• and the electrical wiring which connects the components.
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.
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 to Airbag readiness section
in the Instrument Cluster chapter. Routine maintenance of the airbag is
not required.
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, have the SRS serviced
at your authorized dealer immediately. Unless serviced, the system may
not function properly in the event of a collision.
Disposal of airbags and airbag equipped vehicles
See your local authorized dealer. Airbags MUST BE disposed of by
qualified personnel.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)Seating and Safety Restraints
112

SNOW TIRES AND CHAINS
Snow tires must be the same size and grade as the tires you
currently have on your vehicle.
Note: If your vehicle is equipped with 20” tires, do not use snow chains
on the front tires.
The tires on your vehicle have all weather treads to provide traction in
rain and snow. However, in some climates, you may need to use snow
tires and chains. If you need to use chains, it is recommended that steel
wheels (of the same size and specifications) be used, as chains may chip
aluminum wheels.
Follow these guidelines when using snow tires and chains:
• Use only SAE Class S chains.
• Install chains securely, verifying that the chains do not touch any
wiring, brake lines or fuel lines.
• Drive cautiously. If you hear the chains rub or bang against your
vehicle, stop and re-tighten the chains. If this does not work, remove
the chains to prevent damage to your vehicle.
• If possible, avoid fully loading your vehicle.
• Remove the tire chains when they are no longer needed. Do not use
tire chains on dry roads.
• The suspension insulation and bumpers will help prevent vehicle
damage. Do not remove these components from your vehicle when
using snow tires and chains.
VEHICLE LOADING – WITH AND WITHOUT A TRAILER
This section will guide you in the proper loading of your vehicle and/or
trailer, to keep your loaded vehicle weight within its design rating
capability, with or without a trailer. Properly loading your vehicle will
provide maximum return of vehicle design performance. Before loading
your vehicle, familiarize yourself with the following terms for determining
your vehicle’s weight ratings, with or without a trailer, from the vehicle’s
Tire Label or Safety Compliance Certification Label:
Base Curb Weight – is the weight of the vehicle including a full tank of
fuel and all standard equipment. It does not include passengers, cargo, or
optional equipment.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)Tires, Wheels and Loading
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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 lockup may
not be attainable even with the maximum GAIN setting of 10.
Explanation of instrument cluster messages:
The TBC interacts with the instrument cluster message center. These
messages, accompanied by a single chime, will be displayed when the
TBC determines a malfunction in the trailer connection, TBC system, or
in the trailer. These messages are listed below:
TRAILER DISCONNECTED (if equipped with message center) or
CHECK TRAILER (if equipped with mini message center): This
message is displayed when a trailer connection was determined and then
a disconnection, either intentionally or unintentionally, has been sensed
during a given ignition cycle. It is also displayed if a trailer fault occurs
causing the trailer to appear disconnected. This message is also
displayed during manual activation without a trailer connected.
TBC FAULT: This message is displayed in response to faults sensed by
the TBC. In the event this message is seen, please take your vehicle to
an authorized dealer for diagnosis and repair. The TBC may still function,
but performance may be degraded.
TRAILER FAULT: The TBC is capable of determining certain faults in
the vehicle wiring and trailer wiring/brake system. These faults do not
mean there is anything wrong with the TBC. This message is displayed
when one of the following faults has occurred:
• Short circuit on the electric brake output wire: If the TRAILER
FAULT message is displayed with no trailer connected, the problem is
with the vehicle wiring from the TBC to the 7–pin connector in the
bumper. If the message is only displayed with a trailer connected, the
problem is related to the trailer wiring; consult your trailer dealer for
assistance. This can be a short to ground (i.e., chaffed wire) or a short
to voltage (i.e., pulled pin on trailer emergency break-away battery).
• Trailer brake overload: The trailer brakes are drawing too much
current; consult your trailer dealer for assistance.
Note: Your TBC can be diagnosed by your authorized dealer to
determine exactly which trailer fault has occurred; however, if the fault
is with the trailer this diagnosis is not covered under your Ford
warranty.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus) Tires, Wheels and Loading
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Backing up
• Practice backing up, particularly if you are a novice. Turn the steering
wheel to the right to move the trailer’s rear end to the right.
• Sharp steering movements may cause the trailer to jackknife or go out
of control.
Tires
• All trailer tires should be of the same size, and construction.
• Select tires that meet the trailer loading requirements.
• Always check tow vehicle and trailer tire pressure before towing.
Launching or retrieving a boat
When backing down a ramp during boat launching or retrieval,
• Do not allow the static water level to rise above the bottom edge of
the rear bumper.
• Do not allow waves to break higher than 6 inches (15 cm) above the
bottom edge of the rear bumper.
• Disconnect the trailer tow electrical connector to prevent blown fuses
caused by water entering into your trailer’s electrical wiring.
Exceeding these limits may allow water to enter critical vehicle
components, adversely affecting driveability, emissions and reliability.
Replace front and rear axle lubricants any time the axles have been
submerged in water. Axle lubricant quantities are not to be checked
unless a leak is suspected.
RECREATIONAL TOWING
This applies to all 4x2 trucks with rear wheel drive capability.
An example of recreational towing is towing your vehicle behind a
motorhome. The following recreational towing guidelines are designed to
ensure that your transmission is not damaged.
• Place the transmission in N (Neutral).
• Maximum speed is 35 mph (56 km/h).
• Maximum distance is 50 miles (80 km).
If a distance of 50 miles (80 km) or a speed of 35 mph (56 km/h) must
be exceeded, you must disconnect the driveshaft. Ford recommends the
driveshaft be removed/installed only by a qualified technician. See your
local authorized dealer for driveshaft removal/installation.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus) Tires, Wheels and Loading
165

Tonneau covers
Wheels
Interior style
Electrochromatic compass/temperature interior mirrors
Floor mats
Speed control
Lifestyle
Bedliners and bedmats
Bed tents
Bike racks
Sport Liner 
Toolboxes
Towing mirrors
Trailer hitches, wiring harnesses and accessories
Peace of mind
First aid and highway safety kits
Full vehicle covers
Keyless entry
Locking gas cap
Mobile-Ease  hand-free communication system
Remote start
Vehicle security systems
For maximum vehicle performance, keep the following information in
mind when adding accessories or equipment to your vehicle:
• When adding accessories, equipment, passengers and luggage to your
vehicle, do not exceed the total weight capacity of the vehicle or of
the front or rear axle (GVWR or GAWR as indicated on the Safety
Compliance Certification Label). Consult your authorized dealer for
specific weight information.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus) Accessories
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