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Replacing foglamp bulbs
1. From underneath the vehicle,
rotate the harness/bulb assembly
counterclockwise, to remove from
the fog lamp assembly.
2. Carefully disconnect the bulb
from the harness assembly via the
two snap clips.
Install the new bulb in reverse
order.
Replacing tail/stop/turn/backup lamp bulbs
The tail/stop/turn/backup lamp bulbs are located in the same portion of
the tail lamp assembly, one just below the other. Follow the same steps
to replace either bulb:
1. Make sure the headlamp switch is
in the OFF position.
2. Open the liftgate to expose the
lamp assembly screws.
3. Remove the two screws from the
lamp assembly.
4. Carefully pry the lamp assembly
away from the vehicle, by pulling
the assembly directly straight out, to
expose the bulb socket. DO NOT
TIP THE LAMP ASSEMBLY SIDEWAYS.
5. Rotate the bulb socket counterclockwise and remove from lamp
assembly.
6. Pull bulb straight out of socket and push in the new bulb.
7. Install the bulb socket into the lamp assembly and rotate clockwise.
8. Install the lamp assembly on the vehicle and secure with two screws.
Replacing supplemental tail lamp bulbs
1. Make sure the headlamp switch is in the OFF position.
2. Open the liftgate and remove interior trim panel.
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Lights
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Page 48 of 312

Replacing license plate lamp bulb
The license plate bulbs are located in the license plate housing assembly
on the liftgate. To change the license plate bulbs:
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the license lamp screw
from the assembly.
3. Pull the lamp down and twist the
bulb socket counterclockwise.
Remove the bulb socket from the
lamp.
4. Pull out the old bulb and push in
the new bulb.
5. Install the bulb socket in the lamp assembly by turning it clockwise.
6. Install the lamp assembly and secure it with the retaining screw.
Approach lamp/mirror turn signal bulb removal (if equipped)
To change the bulbs:
1. Make sure the headlamp switch is
in the OFF position and then fold
the mirror forward.
2. Press the clip and pull the turn
signal lens down to remove it from
the mirror assembly.
3. Disconnect the bulb assembly
from the lens.
4. Remove and replace the bulb.
5. Align the turn signal lens clip
with the slot in the mirror assembly and carefully press the lens in.
2007 Navigator(nav)
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Page 193 of 312
If you smell exhaust fumes inside your vehicle, have your dealer
inspect your vehicle immediately. Do not drive if you smell
exhaust fumes.
Important safety precautions
A computer system controls the engine’s idle revolutions per minute
(RPM). When the engine starts, the idle RPM runs higher than normal in
order to warm the engine. If the engine idle speed does not slow down
automatically, have the vehicle checked. Do not allow the vehicle to idle
for more than 10 minutes at the higher engine RPM.
Before starting the vehicle:
1. Make sure all vehicle occupants have buckled their safety belts. For
more information on safety belts and their proper usage, refer to the
Seating and Safety Restraintschapter.
2. Make sure the headlamps and vehicle accessories are off.
3. Make sure the gearshift is in P
(Park).
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Page 226 of 312

The fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
1 30A Smart window #1
2 15A Driver side power seat memory
3 15A FES
4 30A Smart window #2
5 10A Keypad illumination, 3rd row seat
enable, Brake Shift Interlock
(BSI), SPDJB
6 20A Turn signals
7 10A Low beam headlamps (left)
8 10A Low beam headlamps (right)
9 15A Interior lights
10 15A Switch backlighting, Cargo lamps,
Puddle lamps
11 10A 4x4
12 7.5A Power mirror switch, Driver side
power seat memory, Driver side
power fold mirror relay motor
13 7.5A Power fold mirror motor, Digital
Signal Processing (DSP)
14 10A Clock, Power liftgate module –
keep-alive power, Power running
board module – keep-alive power
15 10A Climate control
16 15A Electronic parking brake release
17 20A All lock motor feeds, Liftgate
release, Liftglass release
18 20A Not used (Spare)
19 25A Rear wiper
20 15A Adjustable pedals, Datalink
21 15A Fog lamps
22 15A Park lamps relay
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
23 15A High beam headlamps
24 20A Horn relay
25 10A Demand lamps
26 10A Instrument panel cluster
27 20A Ignition switch
28 5A Radio
29 5A Instrument panel cluster
30 5A Not used (Spare)
31 10A Compass, Automatic dimming rear
view mirror
32 10A Restraints control module
33 10A Ebrake
34 5A Not used (spare)
35 10A Rear park assist, 4x4
36 5A PATS transceiver
37 10A Climate control
38 20A
Subwoofer/Amp (Audiophile radio)
39 20A Radio
40 20A Instrument panel amp, DSP,
Radio, 4x4 module
41 15A Radio
42 10A Upfitter relay coil, Trailer tow,
Battery charge coil
43 10A Rear wiper logic
44 10A Customer access feed
45 5A Front wiper logic
46 7.5A Not used (Spare)
47 30A Circuit
BreakerPower windows, Moon roof
48 — Delayed accessory relay
Note:Relays R301–R305 are not serviceable components; see your
authorized dealer for assistance.
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Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
7 40A** Power running boards
8 40A** Heated/cooled seats
9 60A** ABS (pump)
10 20A** Rear console power point
11 30A** Auxiliary blower
12 25A* Trailer tow connector (park
lamps)
13 30A* Trailer tow connector (battery
charge)
14 — Not used
15 — Not used
16 — A/C clutch relay
17 — Driver side HID low beam
headlamp relay
18 — Fuel pump relay
19 — Back-up relay
20 — Trailer tow connector relay (left
turn signal)
21 — Trailer tow connector relay (right
turn signal)
22 — Passenger side HID low beam
headlamp relay
23 15A* Heated mirrors
24 40A** Blower motor
25 — Not used
26 — Not used
27 30A** Power liftgate
28 40A** Rear window defroster, Heated
mirror
29 30A** Passenger seat
30 10A* A/C clutch
31 15A* Brake lamps
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Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
32 20A* Fuel pump
33 20A* Back-up lamps
34 25A* Trailer tow connector (stop/turn
lamps)
35 20A* 4x4 module
36 10A* Powertrain Control Module
(PCM) – Keep alive power,
Canister vent
37 15A* Transmission B+
38 30A** Third row seats (passenger side)
39 50A** Air suspension pump
40 30A** Starter motor
41 20A** IP/Console power point
42 — Not used
43 — Not used
44 20A** Driver side HID low beam
headlamp
45 30A** Driver seat
46 40A** Run/Start bus bar
47 30A** Air suspension – solenoids
48 20A** Passenger side HID low beam
headlamp
49 30A** Front wipers/washer
50 30A** PCM – bus bar
51 20A** Cargo power point
52 20A** Cigarette lighter
53 — Air suspension relay
54 — Starter relay
55 — Trailer tow connector relay (park
lamp)
56 — Trailer tow connector relay
(battery charge)
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ENGINE
Engines are more efficient when they are clean because grease and dirt
buildup keep the engine warmer than normal. When washing:
•Take care when using a power washer to clean the engine. The
high-pressure fluid could penetrate the sealed parts and cause
damage.
•Do not spray a hot engine with cold water to avoid cracking the
engine block or other engine components.
•Spray Motorcraft Engine Shampoo and Degreaser (ZC-20) on all parts
that require cleaning and pressure rinse clean.
•Cover the highlighted areas to prevent water damage when cleaning
the engine.
•Never wash or rinse the engine while it is running; water in the
running engine may cause internal damage.
PLASTIC (NON-PAINTED) EXTERIOR PARTS
Use only approved products to clean plastic parts. These products are
available from your authorized dealer.
•For routine cleaning, use Motorcraft Detail Wash (ZC-3–A).
•If tar or grease spots are present, use Motorcraft Bug and Tar
Remover (ZC-42).
•For plastic headlamp lenses, use Motorcraft Ultra Clear Spray Glass
Cleaner (ZC-23).
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