FORD EXPEDITION 1999 1.G Service Manual

Turning the EATC on
Press AUTOMATIC, any of the
override controls or the fan speed
control. The EATC will only operate
when the ignition is in the ON
position.
Turning the EATC off
Press OFF. The Outside
Temperature function will continue
to operate until the ignition is
turned off.
Automatic operation
Press AUTOMATIC and select the desired temperature. The selected
temperature and the word AUTO will appear in the display window. The
EATC system will either heat or cool to achieve the selected
temperature. The system will automatically determine fan speed, airflow
location and if fresh outside air or recirculated air is required. Fan speed
remains automatic unless the fan speed thumbwheel is turned or the
steering wheel fan speed control is pressed (if equipped).
When in AUTOMATIC and weather conditions require heat, air will be
sent to the floor. However, if the engine is not warm enough to provide
heat, the fan will be at a low speed and the air will be directed to the
windshield. In 3
1¤2minutes or less, the fan speed will start to increase
and the airflow location will change to the floor area.
If unusual conditions exist (i.e.-window fogging, etc.), the manual
override controls allow you to select airflow locations and the fan control
allows you to adjust fan speed as necessary.
VENT PNL • FLR FLOOR FLR • DEF DEF
HI
LO
MAX A/C
OUTSIDE TEMP AUTOMATICOFFFAUTO
FLR • DEFDEF
HI
LO
AUTOMATICOFF
Controls and features
41

Temperature selection
The display window indicates the
selected temperature, function
(AUTO or one of the override
controls) and manual control of fan
speed (
) if automatic fan speed is not desired.
To control the temperature, select
any temperature between 18ÉC
(65ÉF) and 29ÉC (85ÉF) by pressing
the blue (cooler) or red (warmer)
buttons.
For continuous maximum cooling, push the blue button until 16ÉC
(60ÉF) is shown in the display window. The EATC will continue
maximum cooling (disregarding the displayed temperature) until a
warmer temperature is selected by pressing the red button.
For continuous maximum heating, push the red button until 32ÉC (90ÉF)
is shown in the display window. The EATC will continue maximum
heating (disregarding the displayed temperature) until a cooler
temperature is selected by pressing the blue button.
Temperature conversion
Press MAX A/C and DEFat the
same time (for one second) to
switch between Fahrenheit and
Celsius.
The English/Metric (E/M) control on
the trip computer and message center (if equipped) will not change
temperature display.
˚F
AUTO
VENTPNL • FLRMAX A/C
OUTSIDE TEMP
VENT PNL • FLR FLOOR FLR • DEF DEF
HI
LO
MAX A/C
OUTSIDE TEMP AUTOMATICOFFAUTO
Controls and features
42

Fan speed ()
When AUTOMATIC is pressed, fan
speed is adjusted automatically for
existing conditions. You can override
fan speed at any time. To control
fan speed manually, use the
thumbwheel or steering wheel
control to cancel automatic fan
speed operation. Rotate the
thumbwheel up for higher fan speed
or down for lower fan speed. Press
the steering wheel control (if
equipped) up for higher fan speed or down for lower fan speed.
The display will show
to indicate
manual fan operation.
To return to automatic fan operation, press AUTOMATIC.
Manual override controls
The override controls are located at
the bottom of the EATC and allow
you to determine where airflow is
directed. To return to full automatic
control, press AUTOMATIC.
The air conditioning compressor will operate in all modes except FLOOR
and VENT. It will also operate only when required when AUTOMATIC
has been selected. However, the air conditioning will only function if the
outside temperature is about 10ÉC (50ÉF) or above.
Since the air conditioner removes considerable moisture from the air
during operation, it is normal if clear water drips on the ground under
the air conditioner drain while the system is working and even after you
have stopped the vehicle.
Under normal conditions, your vehicle's climate control system should be
left in any position other than MAX A/C or OFF when the vehicle is
parked. This allows the vehicle to ªbreatheº through the outside air inlet
duct.
FLR • DEFDEF
HI
LO
AUTOMATICOFF
˚F
AUTO
VENT PNL • FLR FLOOR FLR • DEF DEF
HI
LO
MAX A/C
OUTSIDE TEMP AUTOMATICOFFFAUTO
Controls and features
43

²MAX A/C-Uses recirculated air to cool the vehicle. The temperature
will display 16ÉC (60ÉF). To exit, press AUTOMATIC or any other
override controls. MAX A/C is noisier than normal A/C but more
economical and will cool the inside of the vehicle faster. Airflow is
from the instrument panel registers. This mode can also be used to
prevent undesirable odors from entering the vehicle.
²VENT-Distributes outside air through the instrument panel registers.
However, the air cannot be cooled below the outside temperature
because the air conditioning does not operate in this mode.
²PNL²FLR-Distributes outside air through the instrument panel
registers and the floor ducts. Heating and air conditioning capabilities
are provided in this mode. The air will be heated or cooled based on
the temperature selection. For added customer comfort, the air
distributed through the floor ducts will be slightly warmer than the air
sent to the instrument panel registers.
²FLOOR-Allows for maximum heating by distributing outside air
through the floor ducts. However, the air cannot be cooled below the
outside temperature because the air conditioning does not operate this
mode.
²FLR²DEF-Distributes outside air through the windshield defroster
ducts and the floor ducts. Heating and air conditioning capabilities are
provided in this mode. The air will be heated or cooled based on the
temperature selection. For added customer comfort, the air
distributed through the floor ducts will be slightly warmer than the air
sent to the windshield defroster ducts. If the temperature is about
10ÉC (50ÉF) or higher, the air conditioner will automatically
dehumidify the air to prevent fogging.
²DEF
-Distributes outside air through the windshield defroster
ducts. It can be used to clear ice or fog from the windshield. If the
outside air temperature is about 10ÉC (50ÉF) or higher, the air
conditioner will automatically dehumidify the air to prevent fogging.
²OFF-Outside air is shut out and the fan will not operate. For short
periods of time only, use this mode to prevent undesirable odors from
entering the vehicle.
Controls and features
44

Displaying outside temperature
Press OUTSIDE TEMP to display
the outside air temperature. It will
be displayed until OUTSIDE TEMP
is pressed again.
If the selected temperature is changed while the outside temperature is
displayed, the new temperature will be displayed for four seconds after it
is changed, then the outside temperature will return to the window.
If a manual override function is selected while the outside temperature is
displayed, the new function will be displayed for four seconds after it is
changed, then the outside temperature will return to the window along
with the override selection.
The outside temperature reading is most accurate when the vehicle is
moving. Higher readings may be obtained when the vehicle is not
moving. The readings that you get may not agree with temperatures
given on the radio due to differences in vehicle and station locations.
Operating tips
²In humid weather, select DEFbefore driving. This will prevent
your windshield from fogging. After a few minutes, select any desired
position.
²To prevent humidity buildup inside the vehicle, don't drive with the
climate control system in the OFF position.
²Don't put objects under the front seat that will interfere with the
airflow to the back seats.
VENTPNL • FLRMAX A/C
OUTSIDE TEMP
Controls and features
45

²Remove any snow, ice or leaves
from the air intake area (at the
bottom of the windshield).
²If your vehicle has been parked with the windows closed during hot
weather, the air conditioner will do a much faster job of cooling if you
drive for two or three minutes with the windows open. This will force
most of the hot, stale air out of the vehicle. Then operate the air
conditioner as you would normally.
²When placing objects on top of your instrument panel, be careful to
not place them over the defroster outlets. These objects can block
airflow and reduce your ability to see through your windshield. Also,
avoid placing small objects on top of your instrument panel. These
objects can fall down into the defroster outlets and block airflow and
possibly damage your climate control system.
Auxiliary A/C-heater controls (if equipped)
The auxiliary A/C-heater feature
provides increased capacity to
quickly heat or cool the vehicle.
Besides the driver's overhead
control panel for the front seat
occupants, the second row auxiliary
A/C-heater controls allow the rear
passengers to control the
temperature in the rear of the
vehicle through a second control
panel above the second row.
Controls and features
46

In order for the auxiliary A/C-heater
controls to function, the driver's
auxiliary A/C-heater control must be
set to REAR.
The instrument panel climate
controls must be on in order for the
auxiliary A/C-heater to operate.
When the auxiliary A/C-heater control is set to FLOOR, airflow only
occurs from the third row seat floor vent located in the driver's side rear
quarter trim panel.
When the auxiliary A/C-heater control is set to PANEL, airflow occurs
from the overhead 2nd and 3rd row vents.
Turn the fan speed control knob to
the desired speed.
Turn the temperature control to the
desired temperature.
You can get warm or cool air
through either the overhead
registers or floor vent by turning the
auxiliary mode selector:
²Far left for airflow to the
overhead registers.
²Far right for airflow to the rear
floor vent.
WARM PANEL FLOOR COOL
REAR OFF
HI
HI
COOL WARM
OFFPANELFLOOR
DEFFLR
& DEF A/C
MAX
A/CPANEL &
FLOOR
LO
LO OFF
HI
WARM COOL
Controls and features
47

²Anywhere between PANEL and
FLOOR to vary airflow between
the outlets.
POSITIONS OF THE IGNITION
1. ACCESSORY, allows the electrical
accessories such as the radio to
operate while the engine is not
running.
2. LOCK, locks the steering wheel,
automatic transmission gearshift
lever and allows key removal.
3. OFF, shuts off the engine and all
accessories without locking the
steering wheel.
4. ON, all electrical circuits operational. Warning lights illuminated. Key
position when driving.
5. START, cranks the engine. Release the key as soon as the engine
starts.
TURN SIGNAL CONTROL
²Push down to activate the left
turn signal.
²Push up to activate the right turn
signal.
PANEL FLOOR
3
1
2
5
4
Controls and features
48

SPEED CONTROL
To turn speed control on
²Press ON.
Vehicle speed cannot be controlled
until the vehicle is traveling at or
above 48 km/h (30 mph).
Do not use the speed control in heavy traffic or on roads that
are winding, slippery, or unpaved.
Do not shift the gearshift lever into N (Neutral) with the speed
control on.
To turn speed control off
²Press OFF or
²Turn off the vehicle ignition.
Once speed control is switched off, the previously programmed set speed
will be erased.
ON
OFF
ON
OFF
Controls and features
49

To set a speed
²Press SET/SET ACC/SET ACCEL.
For speed control to operate, the
speed control must be ON and
the vehicle speed must be greater
than 48 km/h (30 mph).
If you drive up or down a steep hill, your vehicle speed may vary
momentarily slower or faster than the set speed. This is normal.
Speed control cannot reduce the vehicle speed if it increases above the
set speed on a downhill. If your vehicle speed is faster than the set
speed while driving on a downhill, you may want to shift to the next
lower gear or apply the brakes to reduce your vehicle speed.
If your vehicle slows down more than 16 km/h (10 mph) below your set
speed on an uphill, your speed control will disengage. This is normal.
Pressing RES/RSM/RESUME will re-engage it.
Do not use the speed control in heavy traffic or on roads that
are winding, slippery, or unpaved.
To set a higher set speed
²Press and hold SET/SET ACC/
SET ACCEL. Release the control
when the desired vehicle speed is
reached or
²Press and release SET/SET ACC/
SET ACCEL. Each press will
increase the set speed by
1.6 km/h (1 mph) or
²Accelerate with your accelerator
pedal. When the desired vehicle
speed is reached, press and release SET/SET ACC/SET ACCEL.
RES
SET
ACCEL
COAST
RES
SET
ACCEL
COAST
Controls and features
50