fuses Mercury Grand Marquis 2009 Owner's Manuals

Seating and Safety Restraints 87
Seating 87
Safety restraints 93
Airbags 108
Child restraints 120
Tires, Wheels and Loading 138
Tire information 138
Tire inflation 140
Tire Pressure Monitoring System (TPMS) 153
Vehicle loading 158
Trailer towing 164
Recreational towing 167
Driving 168
Starting 168
Brakes 173
Traction Control™ 177
Air suspension 178
Transmission operation 179
Roadside Emergencies 184
Getting roadside assistance 184
Hazard flasher switch 185
Fuel pump shut-off switch 186
Fuses and relays 187
Changing tires 194
Wheel lug nut torque 201
Jump starting 202
Wrecker towing 207
Customer Assistance 209
Reporting safety defects (U.S. only) 215
Reporting safety defects (Canada only) 215
Cleaning 216
Table of Contents
2
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)

•Power point (inside storage bin)
•Cupholders
•Air vents to the rear seating positions (heat only)
WARNING:Use only soft cups in the cupholder. Hard objects
can injure you in a collision.
AUXILIARY POWER POINT (12VDC)
Power outlets are designed for accessory plugs only. Do not insert
any other object in the power outlet as this will damage the
outlet and blow the fuse. Do not hang any type of accessory or
accessory bracket from the plug. Improper use of the power
outlet can cause damage not covered by your warranty.
The auxiliary power point is located under the cup holder and ashtray
drawer in the center stack. The auxiliary power point for five passenger
vehicles is located in the floor console storage bin.
Do not use the power point for operating the cigarette lighter element (if
equipped).
To prevent the fuse from being blown, do not use the power point(s)
over the vehicle capacity of 12 VDC/180W. If the power point or cigar
lighter socket is not working, a fuse may have blown. Refer toFuses and
relaysin theRoadside Emergencieschapter for information on
checking and replacing fuses.
To have full capacity usage of your power point, the engine is required to
be running to avoid unintentional discharge of the battery. To prevent
the battery from being discharged:
•do not use the power point longer than necessary when the engine is
not running,
•do not leave battery chargers, video game adapters, computers and
other devices plugged in overnight or when the vehicle is parked for
extended periods.
Always keep the power point caps closed when not being used.
Cigar/Cigarette lighter (if equipped)
Do not plug optional electrical accessories into the cigarette lighter
socket.
Do not hold the lighter in with your hand while it is heating, this will
damage the lighter element and socket. The lighter will be released from
its heating position when it is ready to be used.
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Driver Controls
54

WARNING:Never place your arm over the air bag module as a
deploying air bag can result in serious arm fractures or other
injuries.
WARNING:Ford Motor Company recommends that an
authorized dealer inspect all steering column assemblies in use
in vehicles involved in a collision. Failure to inspect and if necessary
replace the steering column assembly could result in severe injury or
death in the event of a collision.
WARNING:Do not attempt to service, repair, or modify the
steering column, its adaptive module, or its fuses. See your
authorized dealer.
To properly position yourself away from the airbag:
•Move your seat to the rear as far as you can while still reaching the
pedals comfortably.
•Recline the seat slightly one or two degrees from the upright position.
WARNING:Do not put anything on or over the air bag module.
Placing objects on or over the air bag inflation area may cause
those objects to be propelled by the air bag into your face and torso
causing serious injury.
WARNING:Do not attempt to service, repair, or modify the
airbag supplemental restraint systems or its fuses. See your
authorized dealer.
WARNING:The front passenger airbag is not designed to offer
protection to an occupant in the center front seating position.
WARNING:Modifying or adding equipment to the front end of
the vehicle (including frame, bumper, front end body structure
and tow hooks) may affect the performance of the airbag system,
increasing the risk of injury. Do not modify the front end of the
vehicle.
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Seating and Safety Restraints
109

WARNING:Do not use accessory seat covers. The use of
accessory seat covers may prevent the deployment of the side
airbags and increase the risk of injury in an accident.
WARNING:Do not lean your head on the door. The side airbag
could injure you as it deploys from the side of the seatback.
WARNING:Do not attempt to service, repair, or modify the
airbag SRS, its fuses or the seat cover on a seat containing an
airbag. Contact your authorized dealer as soon as possible.
WARNING:All occupants of the vehicle should always wear
their safety belts even when an airbag SRS is provided.
How does the side airbag system work?
The design and development of the
side airbag system included
recommended testing procedures
that were developed by a group of
automotive safety experts known as
the Side Airbag Technical Working
Group. These recommended testing
procedures help reduce the risk of
injuries related to the deployment of
side airbags.
The side airbag system consists of
the following:
•An inflatable nylon bag (airbag)
with a gas generator concealed
behind the outboard bolster of
the driver and front passenger
seatbacks.
•A special seat cover designed to allow airbag deployment.
•The same warning light, electronic control and diagnostic unit as used
for the front airbags.
•Two crash sensors located near the side of the vehicle.
Side airbags, in combination with safety belts, can help reduce the risk of
severe injuries in the event of a significant side impact collision.
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Seating and Safety Restraints
118

If you exceed the load limit, the rear air suspension may not operate.
The air suspension shut-off switch is
located on the left side of the trunk.
If this switch is in the off position,
the rear air suspension will not
operate.
WARNING:On vehicles
equipped with air
suspension, turn off the air
suspension switch prior to jacking,
hoisting or towing your vehicle.
Normal vehicle operation does not
require any action by the driver.
TRACTION-LOK™ AXLE (IF EQUIPPED)
This axle provides added traction on slippery surfaces, particularly when
one wheel is on a poor traction surface. Under normal conditions, the
Traction-Lok™ axle functions like a standard rear axle.
Extended use of other than the manufacturer’s specified size tires on a
Traction-Lok™ rear axle could result in a permanent reduction in
effectiveness. This loss of effectiveness does not affect normal driving
and should not be noticeable to the driver.
AUTOMATIC TRANSMISSION OPERATION
Brake-shift interlock
This vehicle is equipped with a brake-shift interlock feature that prevents
the gearshift lever from being moved from P (Park) when the ignition is
in the on position unless brake pedal is pressed.
If you cannot move the gearshift lever out of P (Park) with ignition in
the on position and the brake pedal pressed, it is possible that a fuse has
blown or the vehicle’s brakelamps are not operating properly. Refer to
Fuses and relaysin theRoadside Emergencieschapter.
If the fuse is not blown, perform the following procedure:
1. Apply the parking brake, turn the ignition to 2 (Accessory).
AIR SUSPENSION
SWITCH
INTERRUPTEUR DE
LA SUSPENSION
PNEUMATIQUE
WARNING
AVERTISSEMENTOFF-ARRET
To prevent sudden
vehicle movement,
turn off air suspen-
sion switch prior to
jacking, hoisting or
towing vehicle.
Pour prévenir tout mouvement soudain du véhi-
cule, placer à l'arrêt l'interrupteur de la suspension
pneumatique avant de lever le véhicule (cric ou
pont élévateur) ou de le remorquer.
OFF
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Driving
179

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
fusesFuse link
cartridge
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 Blue
25A Natural Natural — — —
30A Green Green Green Pink Pink
40A — — Orange Green Green
50A — — Red Red Red
60A — — Blue Yellow Yellow
70A — — Tan — Brown
80A — — Natural Black Black
15
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Roadside Emergencies
187

Passenger compartment fuse panel
The fuse panel is located below and to the left of the steering wheel by
the brake pedal. Remove the panel cover to access the fuses.
To remove a fuse use the fuse puller tool provided on the fuse panel cover.
The fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
1 10A Ignition (START) - Starter relay
coil, DTRS
2 7.5A Power mirrors, Mirror switch,
Keypad switch, Decklid switch,
Adjustable pedal switch, DDM,
Cluster
3 5A Ignition (START) - Audio mute
4 10A LCM (switch illumination),
Autolamp sensor
5 7.5A Ignition (ON/ACC) - LCM
6 7.5A LCM
27 25
26 2423 21
2219
20
18 16
17 1514 12
1310
33
31
2932
30
28 11
97
8653
41
2Relay
1
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Roadside Emergencies
188

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.
The high-current fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
1 30A* Ignition switch
2 20A* Not used (spare)
503
502
501
24
23
20
19 22
21302303304
301 207201 202203 204
209
206
208
205602118
114
110
106
102
117
113
109
105
101
116
112
108
104
115
111
107
103
18
16
14
1210
8
6
4
2
17
15
13
119
7
5
3
1 601
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Roadside Emergencies
191

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
3 10A* Powertrain Control Module (PCM)
keep alive power, Canister vent
4 20A* Fuel relay feed
5 10A* Rear Air Suspension Module
(RASM)
6 15A* Alternator regulator
7 30A* PCM relay feed
8 20A* Driver’s Door Module (DDM)
9 15A* Ignition coil relay feed
10 20A* Horn relay feed
11 15A* A/C clutch relay feed
12 20A* Audio (Subwoofer)
13 20A* Instrument panel power point
14 20A* Stop lamp switch
15 15A* Foglamps
16 20A* Heated seats
17 — Not used
18 — Not used
19 15A* Injectors
20 15A* PCM
21 15A* Powertrain loads and sensors
22 — Not used
23 — Not used
24 10A* Heated mirror, Rear defrost
indicator
101 40A** Blower relay feed
102 50A** Cooling fan
103 50A** Instrument panel (I/P) fuse box
feed #1 (I/P fuses 10, 12, 14, 16
and 18)
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Roadside Emergencies
192

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
104 50A** Instrument panel (I/P) fuse box
feed #2 (I/P fuses 2, 4, 6, 8, 19,
21, 23 and 25)
105 30A** Starter relay feed
106 40A** Anti-lock Brake System (ABS)
module (Pump)
107 40A** Rear defroster relay feed
108 20A** Cigar lighter
109 20A** ABS module (Valves)
110 30A** Wiper module
111 — Not used
112 30A** Air suspension compressor
113 — Not used
114 — Not used
115 — Not used
116 — Not used
117 — Not used
118 — Not used
201
12ISO relay A/C clutch
202 — Not used
203
12ISO relay Ignition coil
204
12ISO relay PCM
205
12ISO relay Foglamps
206
12ISO relay Fuel
207 — Not used
208 — Not used
209
12ISO relay Horn
301 Full ISO relay Starter
302 Full ISO relay Air compressor
303 Full ISO relay Blower
304 Full ISO relay Rear defrost relay
2009 Grand Marquis(grn)
Owners Guide(own2002), 2nd Printing
USA(fus)
Roadside Emergencies
193