2010 Mercury Mountaineer fuse

FUSES AND RELAYS
Fuses
If electrical components in the
vehicle are not working, a fuse may
have blown. Blown fuses are
identified by a broken wire within
the fuse. Check the appropriate
fuses before replacing any electrical
components.
Note:Always replace a fuse with one that has the specified amperage
rating. Using a fuse with a higher amperage rating can cause severe wire
damage and could start a fire.
Standard fuse amperage rating and color
COLOR
Fuse
ratingMini fusesStandard
fusesMaxi fusesCartridge
maxi fuses
2A Grey Grey — —
3A Violet Violet — —
4A Pink Pink — —
5A Tan Tan — —
7.5A Brown Brown — —
10A Red Red — —
15A Blue Blue — —
20A Yellow Yellow Yellow Blue
25A Natural Natural — —
30A Green Green Green Pink
40A — — Orange Green
50A — — Red Red
60A — — Blue Yellow
70A — — Tan —
80A — — Natural —
15
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Passenger compartment fuse panel
The fuse panel is located below the
instrument panel on the driver’s
side.
To remove a fuse use the fuse puller tool provided on the fuse panel box.
The fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
1 20A Moon roof, Adjustable pedals,
Memory seats, Lumbar motor
2 5A Microcontroller power
3 20A Radio, Navigation amplifier, GPS
module
4 10A On-board diagnostic (OBD II)
connector
C
B
1 4
3
2
18
7
6
51
2
1
1
1
0
91
6
1
5
1
4
1
32
0
1
9
1
8
1
72
4
2
3
2
2
2
12
8
2
7
2
6
2
5
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Fuse/RelayLocation Fuse Amp
Rating Protected Circuits
5 5A Moon roof, Door lock switch illumination, Auto dimming rear
view mirror
6 20A Liftglass release motor, Door unlock/lock
7 15A Trailer stop/turn
8 15A Ignition switch power, Passive anti-theft system (PATS), Cluster
9 2A 6R Transmission control module/Powertrain control
module (Ignition RUN/START),
Fuel pump relay
10 5A Front wiper RUN/ACC relay in
power distribution box (PDB)
11 5A Radio start
12 5A Rear wiper motor RUN/ACC,
Trailer battery charge relay in
PDB, Radio
13 15A Heated mirror, Manual climate
rear defrost indicator
14 20A Horn
15 10A Reverse lamps
16 10A Trailer reverse lamps
17 10A Restraints control module,
Passenger occupancy
18 10A Reverse park aid, Roll stability
control™ (RSC ) switch, RSC,
All wheel drive (AWD) module,
Heated seat switches, Auxiliary
climate control
19 — Not used
20 10A Climate control system, Brake
shift
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
21 — Not used
22 15A Brake switch, Bi-color stop lamps,
High-mount brake lamp, All turn
lamps
23 15A Interior lamps, Puddle lamps,
Battery saver, Instrument
illumination, Homelink
24 10A Cluster, Theft indicator light
25 15A Trailer tow park lamps
26 15A License plate/rear park lamp,
Front park lamps, Manual climate
27 15A Tri-color stop lamps
28 10A Climate controls
CB1 25A Windows
The following relays are located on either side of the passenger
compartment fuse panel. See your authorized dealer for service of these
relays.
Fuse/Relay Location Description
Relay 1 Delayed accessory relay
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.
WARNING:Always disconnect the battery before servicing high
current fuses.
WARNING: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.
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The high-current fuses are coded as follows:
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
1 50A** Battery feed 2 (passenger
compartment fuse panel)
2 50A** Battery feed 3 (passenger
compartment fuse panel)
3 50A** Battery feed 1 (passenger
compartment fuse panel)
4 30A** Fuel pump, Injectors
5 30A** Third row seat (left)
6 40A** Anti-lock brake system (ABS) pump
7 40A** Powertrain control module (PCM)
8 — Not used
9 — Not used
10 30A** Power seat (right)
11 30A** Starter
12 30A** Third row seat (right)
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
13 30A** Trailer tow battery charger
14 30A** Memory seats
40A** Non-memory seats
15 40A** Rear defrost, Heated mirrors
16 40A** Front blower motor
17 30A** Trailer electronic brakes
18 30A** Auxiliary blower motor
19 30A** Running boards
20 30A** Front wiper motor
21 20A* Rear power point
22 20A* Subwoofer
23 — Not used
24 10A* PCM – keep alive power, Canister
vent
25 20A* Front power point/Cigar lighter
26 20A* All wheel drive (AWD) module (4.6L
engine only)
27 20A* 6R Transmission module (4.6L
engine only)
28 20A* Heated seats
29 15A* Headlamps (right)
30 25A* Rear wiper
31 15A* Fog lamps
32 5A* Power mirrors
33 30A* ABS valve
34 15A* Headlamps (left)
35 10A* A/C clutch
36 20A* Console bin power point
37 30A* Driver window motor
38 15A* 5R Transmission (4.0L engine only)
39 15A* PCM power
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Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
40 15A* Fan clutch, Positive crackcase
ventilation (PCV) valve, A/C clutch
relay
41 15A* Satellite radio module, DVD, SYNC
42 15A* Redundant brake switch, Electronic
vapor management valve, Mass air
flow sensor, Heated exhaust gas
oxygen (HEGO) sensor, EVR,
Variable cam timing (VCT)1 (4.6L
engine only), VCT2 (4.6L engine
only), CMCV (4.6L engine only),
Catalyst monitor sensor
43 15A* Coil on plug (4.6L engine only), Coil
tower (4.0L engine only)
44 15A* Injectors
45B — Not used
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 — Not used
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
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idle speed control ...................346
lubrication specifications .......371
refill capacities ........................371
service points ..................337–338
starting after a collision .........294
Engine block heater .................265
Engine oil ..................................341
checking and adding ..............341
dipstick ....................................341
filter, specifications ........344, 370
recommendations ...................344
refill capacities ........................371
specifications ..........................371
Event data recording ....................7
Exhaust fumes ..........................264
F
Fail safe cooling ........................353
Family entertainment system ....56
Fluid capacities .........................371
Fog lamps ....................................97
Four-Wheel Drive vehicles
driving off road .......................285
preparing to drive your
vehicle .....................................275
Fuel ............................................354
calculating fuel
economy ............................21, 360
cap ...........................................356
capacity ...................................371
choosing the right fuel ...........357
comparisons with EPA fuel
economy estimates .................363
detergent in fuel .....................358
filler funnel .............................359
filling your vehicle with
fuel ...........................354, 356, 360
filter, specifications ........354, 370fuel pump shut-off switch .....294
improving fuel economy ........360
octane rating ...................358, 376
quality ......................................358
running out of fuel .........312, 359
safety information relating to
automotive fuels .....................354
Fuses ..................................295–296
G
Garage door opener ..........111, 124
Gas cap (see Fuel cap) ............356
Gas mileage (see Fuel
economy) ...................................360
Gauges .........................................17
GAWR (Gross Axle Weight
Rating)
calculating ...............................253
GVWR (Gross Vehicle Weight
Rating)
calculating ...............................253
H
Hazard flashers .........................293
Headlamps ...................................96
aiming ........................................98
bulb specifications ..................101
daytime running lights .............97
flash to pass ..............................98
high beam .................................97
turning on and off ....................96
Heating
heating and air conditioning
system .................................89, 91
Homelink wireless control
system ........................................125
Hood ..........................................336
Index
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2010 Mountaineer(mnt)
Owners Guide(own2002), 1st Printing
USA(fus)