2008 Mercury Mountaineer Fuses

Power distribution box
The power distribution box is
located in the engine compartment.
The power distribution box contains
high-current fuses that protect your
vehicle’s main electrical systems
from overloads.
Always disconnect the battery before servicing high current
fuses.
To reduce risk of electrical shock, always replace the cover to
the Power Distribution Box before reconnecting the battery or
refilling fluid reservoirs.
If the battery has been disconnected and reconnected, refer to the
Batterysection of theMaintenance and Specificationschapter.
2008 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
286

The high-current fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 50A** BATT 2 (SJB)
2 50A** BATT 3 (SJB)
3 50A** BATT 1 (SJB)
4 30A** Fuel pump, Injectors
5 30A** Third row seat (left)
6 40A** ABS pump
7 40A** Powertrain Control Module
(PCM)
8 40A** Heated windshield (left)
9 40A** Heated windshield (right)
10 30A** Power seat (right)
11 30A** Starter
12 30A** Third row seat (right)
13 30A** Trailer tow battery charger
2008 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
287

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
40 15A* Fan clutch, PCV valve (4.0L
engine only), AC clutch relay,
GCC fan
41 15A* SDARS, DVD, SYNC
42 15A* Redundant brake switch, EVMV,
MAFS, HEGO, EVR, VCT1 (4.6L
engine only), VCT2 (4.6L engine
only), CMCV (4.6L engine only),
CMS
43 15A* Coil on plug (4.6L engine only),
Coil tower (4.0L engine only)
44 15A* Injectors
45B — GCC fan relay
45A — Not used
46B — Not used
46A — Not used
49 — Fuel pump relay
50B — A/C clutch relay
50A — Fog lamps relay
51 — Not used
52 — A/C clutch (diode)
53 — One Touch Integrated Start
(OTIS) (diode)
54 — Trailer battery charger relay
55B — Front wiper relay
55A — PCM relay
56B — Starter relay
56A — Blower relay
* Mini Fuses ** Cartridge Fuses
2008 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
289

refill capacities ........................359
service points ..................325–326
starting after a collision .........280
Engine block heater .................251
Engine oil ..................................329
checking and adding ..............329
dipstick ....................................329
filter, specifications ........332, 358
recommendations ...................332
refill capacities ........................359
specifications ..........................359
Event data recording ....................7
Exhaust fumes ..........................250
F
Fail safe cooling ........................341
Family entertainment system ....49
Floor mats .................................131
Fluid capacities .........................359
Foglamps .....................................85
Four-Wheel Drive vehicles
driving off road .......................271
preparing to drive your
vehicle .....................................259
Fuel ............................................343
calculating fuel
economy ..........................117, 348
cap ...........................................345
capacity ...................................359
choosing the right fuel ...........346
comparisons with EPA fuel
economy estimates .................351
detergent in fuel .....................347
filling your vehicle
with fuel ..................343, 345, 348
filter, specifications ........342, 358
fuel pump shut-off switch .....280
improving fuel economy ........348octane rating ...................346, 363
quality ......................................346
running out of fuel .................347
safety information relating to
automotive fuels .....................343
Fuses ..................................282–283
G
Garage door opener ....................99
Gas cap (see Fuel cap) ............345
Gas mileage
(see Fuel economy) .................348
Gauges .........................................17
GAWR (Gross Axle Weight
Rating)
calculating ...............................239
GVWR (Gross Vehicle Weight
Rating)
calculating ...............................239
H
Hazard flashers .........................280
Head restraints .........................152
Headlamps ...................................85
aiming ........................................87
bulb specifications ....................90
daytime running lights .............86
flash to pass ..............................86
high beam .................................86
turning on and off ....................85
Heating
heating and air conditioning
system .................................77, 79
Homelink wireless control
system ........................................111
Hood ..........................................324
2008 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Index
370

P
Parking brake ............................254
Parts (see Motorcraft parts) ....358
Passenger Occupant
Classification Sensor .................167
Pedals (see Power adjustable
foot pedals) ...............................104
Power adjustable foot pedals ...104
Power deployable running
boards ........................................130
Power distribution box
(see Fuses) ...............................286
Power door locks ......................135
Power mirrors ...........................103
Power point ...............................100
Power steering ..........................259
fluid, checking and adding ....354
fluid, refill capacity ................359
fluid, specifications .................359
Power Windows .........................101
Preparing to drive your
vehicle ........................................259
R
Radio ................................20, 24, 32
Rear seat entertainment
system ..........................................49
Rear window defroster ...............83
Relays ........................................282
Remote entry system .......140–141
illuminated entry ....................146
locking/unlocking doors..141–142
panic alarm .............................142
replacing the batteries ...........144
Reverse sensing system ...........268Roadside assistance ..................278
Roof rack ...................................134
S
Safety Belt Maintenance ..........181
Safety belts
(see Safety restraints) ............166,
169–174
Safety Canopy ...........190, 192–193
Safety defects, reporting ..313–314
Safety restraints ........166, 169–174
Belt-Minder
...........................176
extension assembly ................175
for adults .........................170–173
for children .............................196
Occupant Classification
Sensor ......................................167
safety belt maintenance .........181
warning light and chime ........176
Safety seats for children ..........201
Safety Compliance
Certification Label ....................364
Satellite Radio Information ........45
Seats ..........................................152
child safety seats ....................201
front seats ...............................153
heated ......................................157
memory seat ...................143, 156
SecuriLock passive anti-theft
system ........................................148
Setting the clock
AM/FM single CD .....................26
AM/FM/In-dash 6 CD ................34
Snowplowing .................................8
Spark plugs, specifications ......358,
363
2008 Mountaineer(mnt)
Owners Guide (post-2002-fmt)
USA(fus)
Index
372