ignition FORD F250 2004 Service Manual

will illuminate when the system is turned off. If the indicator light
illuminates when the RSS is not turned off, it may indicate a failure in
the RSS. The RSS will remain off until either the RSS control is pushed
again or the ignition switch is recycled.
Keep the RSS sensors (located on the rear bumper/fascia) free
from snow, ice and large accumulations of dirt (do not clean the
sensors with sharp objects). If the sensors are covered, it will
affect the accuracy of the RSS.
If your vehicle sustains damage to the rear bumper/fascia, leaving
it misaligned or bent, the sensing zone may be altered causing
inaccurate measurement of obstacles or false alarms.
FOUR-WHEEL DRIVE (4WD) OPERATION (IF EQUIPPED)
For important information regarding safe operation of this type
of vehicle, seePreparing to drive your vehiclein this chapter.
When four–wheel drive (4WD) is engaged, power is supplied to all four
wheels through a transfer case. 4WD can be selected when additional
driving power is desired.
4WD operation is not recommended on dry pavement. Doing so could
result in difficult disengagement of the transfer case, increased tire wear
and decreased fuel economy.
Manual 4x4 system (if equipped)
The 4WD system is engaged or
disengaged by rotating the control
for both front wheel hub locks from
the FREE or LOCK position, then
manually engaging or disengaging
the transfer case with the
floor-mounted shifter. For increased
fuel economy in 2WD, rotate both
hub locks to the FREE position.
•For proper operation, make
sure that the arrow and the
indicator dot on the hub are
aligned, and that both hub
locks are set to the same
position (both set to LOCK or both set to FREE).
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4WD system indicator lights
The 4WD system indicator lights illuminate only under the following
conditions. If these lights illuminate when driving in 2WD, contact your
Ford dealer as soon as possible.
•4x4- momentarily illuminates
after the engine is started.
Illuminates when 4H (4x4 High)
or 4L (4x4 Low) is engaged.
•LOW RANGE–momentarily
illuminates when the ignition is
turned to the ON position.
Illuminates when 4L (4x4 Low) is
engaged.
Using a manual 4WD system (if equipped)
Note:Some noise may be heard as the 4WD system shifts or engages.
This is normal.
2H (2WD High)–For general on-road driving. Sends power to the rear
wheels only.
4H (4WD High)–For winter and off-road conditions. Sends power to
front and rear wheels.
N (Neutral)–Only used when towing the vehicle.
4L (4WD Low)–For low-speed off-road applications that require extra
power such as steep grades, deep sand or pulling a boat out of the water.
Sends power to front and rear wheels.
4x4
LOW
RANGE
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Using the N (Neutral) position
The transfer case neutral position overrides the transmission and
puts the vehicle in neutral regardless of transmission gearshift
lever position. The vehicle can move forward or backwards.
This position should only be used
when towing the vehicle.
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.
Using the electronic shift 4WD system (if equipped)
Positions of the electronic shift system
The electronic shift 4WD system is designed to allow up to 45
seconds before a shift command is performed. In the event that
conflicting shift commands are selected, allow up to 45 seconds
for the shift command to be performed prior to reporting any
shift concerns to your dealer.
Note:Some noise may be heard as the 4WD system shifts or engages.
This is normal.
2H (2WD High)–For general on-road driving. Sends power to the rear
wheels only.
4H (4WD High)–For winter and off-road conditions. Sends power to
front and rear wheels.
4L (4WD Low)–For low-speed off-road applications that require extra
power such as steep grades, deep sand or pulling a boat out of the water.
Sends power to front and rear wheels.
2H
4H
4LN
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Vehicles with a higher center of gravity such as utility and
four-wheel drive vehicles handle differently than vehicles with a
lower center of gravity. Utility and four-wheel drive vehicles arenot
designed 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 and 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.
•If the vehicle goes from one type of surface to another (i.e., from
concrete to gravel) there will be a change in the way the vehicle
responds to a maneuver (steering, acceleration or braking). Again,
avoid these abrupt inputs.
Parking
On some 4WD vehicles, when the transfer case is in the N (Neutral)
position, 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.
Always set the parking brake fully and make sure the gearshift is
latched in P (Park). Turn the ignition to the LOCK position and
remove the key whenever you leave your vehicle.
If the parking brake is fully released, but the brake warning lamp
remains illuminated, the brakes may not be working properly.
See your dealer or a qualified service technician.
4WD Systems
4WD (when you select a 4WD mode), uses all four wheels to power the
vehicle. This increases traction, enabling you to drive over terrain and
road conditions that a conventional two-wheel drive vehicle cannot.
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Power is supplied to all four wheels
through a transfer case. On 4WD
vehicles, the transfer case allows
you to select 4WD when necessary.
Information on transfer case
operation and shifting procedures
can be found in theDriving
chapter. Information on transfer
case maintenance can be found in theMaintenance and Specifications
chapter. You should become thoroughly familiar with this information
before you operate your vehicle.
Normal characteristics
On some 4WD models, the initial shift from two-wheel drive to 4x4 while
the vehicle is moving can cause some momentary clunk and ratcheting
sounds. This is the front drivetrain coming up to speed and the
automatic locking hubs engaging and is not cause for concern.
Sand
When driving over sand, try to keep all four wheels on the most solid
area of the trail. Avoid reducing the tire pressures but shift to a lower
gear and drive steadily through the terrain. Apply the accelerator slowly
and avoid spinning the wheels.
If you must reduce the tire pressure for whatever reason in sand, make
sure you re-inflate the tires as soon as possible.
Avoid excessive speed because vehicle momentum can work against you
and cause the vehicle to become stuck to the point that assistance may
be required from another vehicle. Remember, you may be able to back
out the way you came if you proceed with caution.
Mud and water
If you must drive through high
water, drive slowly. Traction or
brake capability may be limited.
When driving through water,
determine the depth; avoid water
higher than the bottom of the hubs
(if possible) and proceed slowly. If
the ignition system gets wet, the
vehicle may stall.
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Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. See your dealer or a reliable trailer
dealer if you require assistance.
Hitches
Do not use hitches that clamp onto the vehicle’s bumper or attach to the
axle. You must distribute the load in your trailer so that 10%–15% of the
total weight of the trailer is on the tongue.
Load equalizing hitch
When hooking up a trailer using a load equalizing hitch, always use the
following procedure:
1. Park the unloaded vehicle on a level surface. With the ignition on and
all doors closed, allow the vehicle to stand for several minutes so that it
can level.
2. Measure the height of a reference point on the front and rear bumpers
at the center of the vehicle.
3. Attach the trailer to the vehicle and adjust the hitch equalizers so that
the front bumper height is within
1⁄2” (13 mm) of the reference point.
After proper adjustment, the rear bumper should be no higher than in
Step 2.
Note:Adjusting an equalizing hitch so the rear bumper of the vehicle is
higher than it was unloaded will defeat the function of the load
equalizing hitch and may cause unpredictable handling.
Safety chains
Always connect the trailer’s safety chains to the frame or hook retainers
of the vehicle hitch. To connect the trailer’s safety chains, cross the
chains under the trailer tongue and allow slack for turning corners.
If you use a rental trailer, follow the instructions that the rental agency
gives to you.
Do not attach safety chains to the bumper.
Trailer brakes
Electric brakes and manual, automatic or surge-type trailer brakes are
safe if installed properly and adjusted to the manufacturer’s
specifications. The trailer brakes must meet local and Federal
regulations.
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Canadian customers who require roadside assistance, call
1–800–665–2006.
If you need to arrange roadside assistance for yourself, Ford Motor
Company will reimburse a reasonable amount. To obtain reimbursement
information, U.S. Ford or Mercury vehicles customers call
1-800-241-3673; Lincoln vehicle customers call 1–800–521–4140.
Canadian customers who need to obtain reimbursement information, call
1–800–665–2006.
ROADSIDE COVERAGE BEYOND BASIC WARRANTY
In the United States, you may purchase additional roadside assistance
coverage beyond this period through the Ford Auto Club by contacting
your Ford or Lincoln Mercury dealer.
Similarly in Canada, for uninterrupted Roadside Assistance coverage, you
may purchase extended coverage prior to your Basic Warranty’s Roadside
Assistance expiring. For more information and enrollment, contact
1–877–294–2582 or visit our website at www.ford.ca.
HAZARD FLASHER
The hazard flasher is located on the
steering column, just behind the
steering wheel. The hazard flashers
will operate when the ignition is in
any position or if the key is not in
the ignition.
Push in the flasher control and all
front and rear direction signals will
flash. Press the flasher control again
to turn them off. Use it when your
vehicle is disabled and is creating a
safety hazard for other motorists.
Note:With extended use, the flasher may run down your battery.
FUEL PUMP SHUT-OFF SWITCH
This device stops the electric fuel pump from sending fuel to the engine
when your vehicle has had a substantial jolt.
After an accident, if the engine cranks but does not start, this switch
may have been activated.
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This switch is located in the front
passenger’s footwell, behind the kick
panel access cover.
To reset the switch:
1. Turn the ignition OFF.
2. Check the fuel system for leaks.
3. If no leaks are apparent, reset the
switch by pushing in on the reset
button.
4. Turn the ignition ON.
5. Wait a few seconds and return
the key to OFF.
6. Make another check for leaks.
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.
15
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
10 10A* A/C clutch
11 20A* Radio (main)
12 20A* Cigar lighter / OBD II
13 5A* Power mirrors/switches
14 15A* Daytime running lamps (DRL)
15—Not used
16—Not used
17 15A* Exterior lamps
18 20A* Turn lamps/Brake on-off switch
(high)
19 10A* Body security module/4x4 module
20 10A* Fuel Injection Control Module
(FICM) relay (Diesel engine only)
21—Not used
22 20A* Engine control
23 20A* Engine control (gasoline engine
only), Climate control (Diesel
engine only)
24 2A* Brake pressure switch/Speed
control
25 10A* 4-Wheel Anti-lock Brake System
(4WABS) module, Variable Fan
Control (VFC) (Diesel engine
only)
26 10A* Air bags
27 15A* Ignition switch Run feed
28 10A* EATC module/Front blower relay
coil
29 10A* Customer access
30 15A* Highbeam headlamps
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
31 15A* Clutch interlock switch (manual
transmissions only), Transmission
range sensor (automatic
transmissions only) then to
starter relay coil (all
transmissions), 4x4
32 5A* Radio (start)
33 15A* Front wiper
34 10A* Brake on-off switch
35 10A* Instrument cluster
36 10A* PCM Memory
37 15A* Horn
38 20A* Trailer tow park lamps
39 15A* Trailer tow back-up lamps
40 20A* Fuel pump
41 10A* Instrument cluster
42 15A* Delayed accessory
43 10A* Fog lamps
44—Not used
45 10A* Ignition switch Run/Start feed
46 10A* Left-hand lowbeam
47 10A* Right-hand lowbeam
48—Not used
101 30A** Trailer tow electric brake
102 30A** Door locks/Body security module
103 50A** Ignition switch (gasoline engine
only), FICM power (Diesel engine
only)
104 40A** Heated backlight
105 30A** Fuel heater (Diesel engine only)
106 30A** Front wiper main
107 40A** Front blower motor
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