1999 FORD EXPEDITION suspension

Four wheel drive low (if equipped)
This light momentarily illuminates
when the ignition is turned to ON.
Illuminates when four-wheel drive
low is engaged. If the light continues
to flash have the system serviced.
Four wheel drive indicator (if equipped)
This light momentarily illuminates
when the ignition is turned to ON.
Illuminates when 4x4 range is
engaged.
Check air suspension
Illuminates momentarily when the
ignition is turned to the ON position
and the engine is OFF. The light
also illuminates when the air
suspension system requires
servicing.
For information on the air suspension system, refer to theDriving
chapter.
Low washer fluid
Illuminates when the ignition is
turned to ON and when the
windshield washer fluid is low.
Door ajar
Illuminates when the ignition is in
the ON or START position and any
door is open.
LOW
RANGE
4x4
CK
SUSP
DOOR
AJAR
Instrumentation
10

Speed sensitive steering
The steering in your vehicle is speed sensitive. At high speeds, steering
assist will decrease to improve steering feel. At lower speeds,
maneuverability will be increased.
If the amount of effort required to steer your vehicle changes at a
constant vehicle speed, have the power steering system checked by your
dealer or a qualified service technician.
AIR SUSPENSION SYSTEM (IF EQUIPPED)
The air suspension system is designed to improve ride, handling and
general vehicle performance for static, on and off-road driving conditions.
²The load leveling feature of the air suspension automatically keeps the
vehicle at a constant level if a load is added or removed from the
vehicle.
²The height adjustment feature automatically controls the vehicle
height over a range of approximately 5 cm (2 inches) based on vehicle
speed, ignition position and selection of two or four-wheel drive
modes.
²The air suspension automatically puts the vehicle at its lowest height
when ignition if OFF to provide easy entry and exit. When ever a door
is opened (including the liftgate) the system memorizes and maintains
the height of the vehicle until all doors are closed or until vehicle
exceeds 16km/h (10mph).
²The air suspension system raises the vehicle to its normal ride
position when the ignition is turned on, all doors are closed and the
transmission is shifted into gear.
²In 4WD Low the air suspension system will not move to it's lowest
height. In 4WD Low, the air suspension system raises the vehicle
above the normal ride height at speeds below 40 km/h (25 mph) to
improve ground clearance. In 4WD Low, do not exceed 56 km/h
(35 mph).
²When the vehicle is in motion, the air suspension system will adjust
the vehicle's height according to ground clearance and speed to
maximize ride comfort.
²It is normal to occasionally hear a buzz or clicking from the vehicle's
air suspension system when the ignition is turned off. The system
stays energized for 40 minutes after the ignition is turned off to
compensate for any load changes made after the vehicle is parked.
Driving
109

The air suspension shut-off switch is
located behind an access panel
underneath the passenger side
instrument panel.
On vehicles equipped with
Air Suspension, turn OFF
the Air Suspension switch prior to
jacking, hoisting or towing your
vehicle.
Normal vehicle operation does not
require any action by the driver.
Check air suspension light
The warning and indicator light CK SUSP illuminates when the air
suspension switch is turned off or an air suspension system fault has
been detected.
If the light is displayed while driving and the air suspension system
switch is not turned off, safely pull off the road at your earliest
convenience. Turn the ignition switch from 4 (On) to 3 (Off) and 4 (On)
again. If the warning light reappears, turn the air suspension switch off
and have the vehicle serviced by a dealer or qualified service technician.
If the vehicle is loaded beyond the recommended maximum payload, the
CK SUSP light may illuminate. To correct this condition, remove or
redistribute the payload according to the recommended requirements
and follow the procedure outlined above.
TRACTION-LOK 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
Traction-Lok axle functions like a standard rear axle.
Extended use of other than the manufacturer's specified size tires on a
Traction-Lok rear axle could result in a permanent reduction in
effectiveness. This loss of effectiveness does not affect normal driving
and should not be noticeable to the driver.
AIR SUSPENSION
SWITCH
INTERRUPTEUR DE
LA SUSPENSION
PNEUMATIQUE
OFF
Driving
110

TRAILER TOWING
Trailer towing with your vehicle may
require the use of a trailer tow
option package.
Trailer towing puts additional loads
on your vehicle's engine,
transmission, axle, brakes, tires, and
suspension. For your safety and to
maximize vehicle performance, be
sure to use the proper equipment
while towing.
Follow these guidelines to ensure safe towing procedure:
²Stay within your vehicle's load limits. If exceeded, cargo should be
removed from the trailer and/or the vehicle until all weights are within
specified limits.
²Thoroughly prepare your vehicle for towing. Refer toPreparing to
towin this chapter.
²Use extra caution when driving while trailer towing. Refer toDriving
while you towin this chapter.
²Service your vehicle more frequently if you tow a trailer. Refer to the
severe duty schedule in the ªService Guideº.
²Do not tow a trailer until your vehicle has been driven at least 800 km
(500 miles).
²Refer to the instructions included with towing accessories for the
proper installation and adjustment specifications.
If your vehicle is equipped with the optional heavy duty trailer tow
wiring, it is pre-wired for trailer towing. An electrical connector is
provided under the instrument panel for installing a customer-supplied
electric brake controller. Another electrical connector is provided at the
hitch. This connector provides power to the trailer for taillamps, stop
and turn lamps, back up lamps, battery charge, electric brakes (when a
customer provided controller is installed) and ground. The kit included
with your vehicle provides you with adaptors to attach the brake
controller and convert the hitch connector for Class I trailer usage.
Driving
122

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.
If your vehicle is not equipped with the factory heavy duty trailer tow
option, auxiliary coolers are recommended for the automatic
transmission system if you are planning on:
²traveling farther than 80 km (50 miles)
²towing in hilly terrain
²towing frequently
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% 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. Turn the air suspension (if equipped) control to OFF.
3. Measure the height of a reference point on the front and rear bumpers
at the center of the vehicle.
4. Attach the trailer to the vehicle and adjust the hitch equalizers so that
the front bumper height is within 0±13 mm (0.5 in) of the reference
point. After proper adjustment, the rear bumper should be no higher
than in Step 3.
5. Turn the air suspension (if equipped) control to ON.
Adjusting an equalizing hitch so the rear bumper of the vehicle
is lower or higher than it was unloaded will defeat the function
of the load equalizing hitch and may cause unpredictable handling.
Driving
124

The fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingDescription
1 25A Audio
2 5A Overhead Trip Computer, Electronic
Automatic Temperature Control (EATC),
Powertrain Control Module (PCM), Cluster
3 20A Cigar Lighter, OBD-II Scan Tool Connector
4 15A Autolamp Module, Remote Entry Module,
Mirrors, Air Suspension Switch
5 15A AC Clutch Relay, Speed Control Module,
Reverse Lamp, EVO Module, Climate Mode
Switch (Front Blower Relay), Daytime
Running Lamp Relay
6 5A Cluster, Overhead Trip Computer, Compass,
Brake Shift Interlock Solenoid, Air
Suspension Module, GEM Module, EVO
Steering Sensor
FUSE1 12 22
21323
617 27
718 28
819 29
930
20
31 21 11 10
RELAY
5 RELAY
4 RELAY
3 RELAY
2 RELAY
1
31424
41525
51626
Roadside emergencies
131

Fuse/Relay
LocationFuse Amp
RatingDescription
7 5A Aux A/C Blower Relay, Console Blower
8 5A Radio, Remote Entry Module, GEM Module
9 Ð Not Used
10 Ð Not Used
11 30A Front Washer Pump Relay, Wiper Run/Park
Relay, Wiper Hi/LO Relay, Windshield Wiper
Motor, Rear Washer Pump Relay
12 Ð Not Used
13 20A Stop Lamp Switch (Lamps), Turn/Hazard
Flasher, Speed Control Module
14 15A Rear Wipers, Running Board Lamps,
Battery Saver Relay, Interior Lamp Relay,
Accessory Delay Relay (Power Windows)
15 5A Stop Lamp Switch, (Speed Control, Brake
Shift Interlock, ABS, PCM Module Inputs),
GEM Module
16 20A Headlamps (Hi Beams), Cluster (Hi Beam
Indicator)
17 10A Heated Mirrors, Heated Grid Switch
Indicator
18 5A Instrument Illumination (Dimmer Switch
Power)
19 Ð Not Used
20 5A Audio, Four Wheel Air Suspension (4WAS)
Module, GEM Module
21 15A Starter Relay, Fuse 20
22 10A Air Bag Module
23 10A Aux A/C, Heated Seats, Trailer Tow Battery
Charge, Turn/Hazard Flasher, Console
Blower Door Actuator
24 10A Climate Mode Switch (Blower Relay),
EATC (via fuse 7), EATC Blower Relay
25 5A 4 Wheel Anti-Lock Brake System (4WABS)
Module
Roadside emergencies
132

Fuse/Relay
LocationFuse Amp
RatingDescription
12 10A* Rear Wipers
13 Ð Not Used
14 Ð Not Used
15 10A* Running Board Lamps
16 Ð Not Used
17 Ð Not Used
18 15A* Powertrain Control Module, Fuel Injectors,
Fuel Pump, Mass Air Flow Sensor
19 10A* Trailer Tow Stop and Right Turn Lamp
20 10A* Trailer Tow Stop and Left Turn Lamp
21 Ð Not Used
22 Ð Not Used
23 15A* Powertrain Control Module, HEGO Sensors,
Canister Vent
24 15A* Powertrain C ontrol Module, Automatic
Transmission, CMS Sensor
101 30A** Trailer Tow Battery Charge
102 50A** Four Wheel Antilock Brake Module
103 50A** Junction Block Battery Feed
104 30A** 4x4 Shift Motor & Clutch
105 40A** Climate Control Front Blower
106 Ð Not Used
107 Ð Not Used
108 30A** Trailer Tow Electric Brake
109 50A** Air Suspension Compressor
110 30A** Moonroof, Flip Windows and Heated Seats
111 50A** Ignition Switch Battery Feed (Start Circuit)
112 30A** Drivers Power Seat, Adjustable Pedals
113 50A** Ignition Switch Battery Feed (Run and
Accessory Circuits)
114 30A** Climate Control Auxiliary Blower
115 Ð Not Used
Roadside emergencies
135