1997 FORD EXPEDITION bulb

Low washer fluid
Illuminates briefly when the
ignition is turned to On. Also
illuminates when the windshield
washer fluid is low.
Oil pressure
Illuminates briefly when the
ignition key is turned to On.
Illuminates when the oil pressure
is low. Stop the engine and check
the engine oil level as soon as
possible. Refer toChecking and
adding engine oilin the
Maintenance and caresection.
The oil pressure and engine
coolant warning lights share the
same lightbulb Ð if one of the
warning lights illuminates, they
both do.
Door ajar
Illuminates when the ignition
switch is in the ON or START
position and any door is open.
Charging system
Briefly illuminates when the
ignition is turned on and the
engine is off. The light also
illuminates when the battery is not
charging properly, requiring
electrical system service.
LOW
WASH
DOOR
AJAR
exd_oil_pressure_light
exd_door_ajar_light
exd_charging_system
com_brake_system.01
Instrumentation
9

specifies that additional city and
highway driving is necessary to
complete the check of the OBD II
system.
The driving modes required to
reach the ready condition consist
of a minimum of 30 minutes of city
and highway driving:
²At least 20 minutes driving in
stop and go city-type traffic with
at least four idle periods.
²At least ten minutes of driving
on an expressway or highway.
Before completing the above
driving modes, the engine must be
warmed up and at operating
temperature. Once started, the
vehicle must not be turned off
during these modes.
exd_bulbs
Maintenance and care
197

REPLACING THE EXTERIOR
BULBS
Check the operation of the
following exterior lamps
frequently:
²headlamps
²foglamps
²high-mount brakelamp
²license plate lamp
²tail lamps
²back-up lamps
Do not remove lamp bulbs unless
they may be replaced immediately
with new ones. If a bulb is removed
for an extended period of time,
contaminants may enter the lamp
housings and affect lamp
performance.
Maintenance and care
198

Handle a halogen
headlamp bulb carefully
and keep out of children's reach.
Grasp the bulb only by its plastic
base and do not touch the glass.
The oil from your hand could
cause the bulb to break the next
time the headlamps are
operated.
Replacement bulbs
For specifications for exterior and
interior replacement bulbs for your
vehicle, refer toBulb
specificationsin this chapter.
Replacing headlamp bulbs
Handle a halogen
headlamp bulb carefully
and keep out of children's reach.
Grasp the bulb only by its plastic
base and do not touch the glass.
The oil from your hand could
cause the bulb to break the next
time the headlamps are
operated.
1. Make sure that the headlamp
control is in the OFF position.
2. Open the hood.
exd_ext_replacement_bulbs
exd_headlamps_turnsignals
Maintenance and care
199

3. At the back of the headlamp,
pull clips rearward and up (about
ôº) to release the headlamp
assembly.
4. Slide headlamp assembly
forward and off of guide ribs to
expose the back of the bulb and
wiring connector.
5. Remove the electrical connector
from the bulb by grasping the wire
and pulling it rearward.
6. Remove bulb retainer ring by
turning it counterclockwise about
1¤4turn, then slide the ring off the
plastic base.
7. Without turning, carefully pull
bulb assembly out of headlamp
assembly.
8. Insert the glass end of the new
bulb into the headlamp assembly
socket. When the grooves in the
plastic base are aligned, push the
bulb into the socket until the
plastic base contacts the rear of
the socket.
9. Slip bulb retaining ring over the
plastic base and lock the ring into
the socket by turning it clockwise
until you feel a ªstop.º
10. Push the electrical connector
into the rear of the plastic base
until it ªsnaps.º
Maintenance and care
200

11. Straighten alignment pins,
making them parallel with the
outer edges of the attachment
standoff.
12. Carefully insert the headlamp
assembly into the vehicle making
sure the alignment pins are
inserted into the proper holes and
into the guide ribs.
13. Hold the headlamp assembly
snugly against the vehicle and
push down on the clips to lock the
lamp into position.
Replacing parking lamp/turn
signal bulbs
1. Remove screw from the top of
lamp assembly.
2. Disengage lamp assembly (it has
a snap fit).
Maintenance and care
201

3. Remove the electrical connector
from the bulb by grasping the wire
and pulling it rearward.
4. Remove bulb retainer ring by
turning it counterclockwise about
1/4 turn, then slide the ring off the
plastic base.
5. Without turning, carefully pull
bulb assembly out of parking lamp
assembly.
6. Insert the glass end of the new
bulb into the parking lamp
assembly socket. When the grooves
in the plastic base are aligned,
push the bulb into the socket until
the plastic base contacts the rear
of the socket.
7. Slip bulb retaining ring over the
plastic base and lock the ring into
the socket by turning it clockwise
until you feel a ªstop.º
8. Push the electrical connector
into the rear of the plastic base
until it ªsnaps.º
9. Align top and bottom ribs of
parking lamp assembly with
corresponding slots on front of
vehicle.
10. Push gently until parking lamp
assembly seats (you will hear a snap).
11. Replace screw removed in step 1.
exd_foglamps
Maintenance and care
202

Replacing foglamp bulbs
1. Disconnect the electrical
connector from the back of the
foglamp assembly.
2. Twist, then pull the bulb from
the foglamp assembly.
3. Install the new bulb.
4. Connect the electrical connector
to the back of the foglamp
assembly.
High-mount brakelamp
To change the high-mount
brakelamp bulbs:
1. Remove the four screws
that secure the high-mount
brakelamp lens.
2. Carefully remove the lens.
3. Each of the three bulbs may be
removed with a1¤4turn
counterclockwise and a careful pull.
4. Replace the bulbs as needed
and replace the high-mount
brakelamp lens.
exd_highmount_brake
exd_tail_lamps
Maintenance and care
203