2005 Mercury Grand Marquis Module

The airbags inflate and deflate
rapidly upon activation. After airbag
deployment, it is normal to notice a
smoke-like, powdery residue or
smell the burnt propellant. This may
consist of cornstarch, talcum
powder (to lubricate the bag) or
sodium compounds (e.g., baking
soda) that result from the
combustion process that inflates the
airbag. Small amounts of sodium
hydroxide may be present which
may irritate the skin and eyes, but
none of the residue is toxic.
While the system is designed to help
reduce serious injuries, contact with
a deploying airbag may also cause abrasions, swelling or temporary
hearing loss. Because airbags must inflate rapidly and with considerable
force, there is the risk of death or serious injuries such as fractures,
facial and eye injuries or internal injuries, particularly to occupants who
are not properly restrained or are otherwise out of position at the time
of airbag deployment. Thus, it is extremely important that occupants be
properly restrained as far away from the airbag module as possible while
maintaining vehicle control.
The SRS consists of the following items:
•Driver and passenger airbag modules (which include the inflators and
airbags)
•Front passenger sensing system
•Driver and passenger side airbags (if equipped)
•One or more impact and safing sensors
•A readiness light and tone
•A diagnostic module
•The electrical wiring which connects the components
The diagnostic module monitors its own internal circuits as well as the
supplemental airbag electrical system wiring (including the impact
sensors), the system wiring, the airbag system readiness light, the airbag
back up power and the airbag ignitors.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Seating and Safety Restraints
114

During Traction Control
operation you may hear an electric motor type
of sound coming from the engine compartment and the engine will not
“rev-up” when you push further on the accelerator. This is normal
system behavior.
If you should become stuck in snow
or ice or on a very slippery road
surface, try switching the Traction
Control
system off. This may allow
excess wheel spin to “dig” the
vehicle out and enable a successful
“rocking” maneuver.
The traction control indicator
flashes during a Traction Control

system event.
If the traction control indicator
comes on and stays lit, either:
•the Traction Control
system
requires service, or
•the customer has disabled the system using the traction control switch
located on the left side of the instrument panel.
The Traction Control
system will be on every time you turn the ignition
key from OFF to ON until you deactivate the system using the traction
control switch on the instrument panel left of the steering column.
STEERING
Ford Motor Company recommends that a certified technician
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.
Do not attempt to service, repair, or modify the steering column,
its adaptive module, or its fuses. See your Ford or Lincoln
Mercury dealer.
To prevent damage to the power steering system, never hold the steering
wheel at its furthest turning points (until it stops) for more than a few
seconds when the engine is running.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
171

The fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
1 15A Cluster, Lighting Control Module
(Interior Lighting)
2 10A Ignition (ON) - Electronic
Automatic Temperature Control
(EATC) module, A/C mode switch
(vehicles equipped with EATC)
3 10A EATC module
4 10A Ignition (ON) - Anti-lock Brake
System (ABS) module, Positive
Crankcase Ventilation (PCV)
5 10A Speed control deactivation switch,
Stop signal, Brake-Transmission
Shift Interlock (BTSI)
(column-shift transmission)
6 10A Ignition (ON) - Cluster
7 10A LCM (Park lamps, Switch
illumination)
27 25
26 2423 21
2219
20
18 16
17 1514 12
1310
33
31
2932
30
28 11
97
8653
41
2Relay
1
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
184

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
8 10A Ignition (ON) - Rear Air
Suspension Module (RASM),
Variable Assist Power Steering
(VAPS)
9 20A LCM (Headlamps, Cornering
lamps)
10 5A Ignition (ON/START) - Driver’s
Door Module (DDM)
11 10A Ignition (START) - ON/ACC relay
coil
12 10A Ignition (ON/START) - Starter
relay coil
13 10A Ignition (START) - Wiper module
14 10A Ignition (ON) - BTSI (Floor-shift
transmission)
15 7.5A Ignition (START) - LCM, Door
lock switch illumination, Heated
seat switch illumination,
Moonroof, Overhead console,
Electrochromatic mirror
16 15A Ignition (ON) - Turn signals
17 10A Ignition (START) - Audio
18 10A Ignition (ON) - A/C mode switch
(vehicles equipped with manual
A/C), Blend door, DDM, Heated
seat modules, Daytime Running
Lamps (DRL) module
19 10A Left-hand low beam, DRL
20 10A Ignition (ON/ACC) - Back-up
lamps
21 10A Right-hand low beam, DRL
22 10A Ignition (ON/ACC) - Restraint
Control Module (RCM), Occupant
Classification Sensor (OCS),
Passenger Air bag Deactivation
Indicator (PADI)
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
185

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
23 15A Multi-function switch
(Flash-to-pass)
24 10A Ignition (ON/ACC) - Passive
Anti-Theft System (PATS)
module, Powertrain Control
Module (PCM) relay coil, Fuel
relay coil, Ignition coil relay coil
25 10A Autolamp/Sunload sensor, Power
mirrors, Door lock switches
(DDM), Adjustable pedal switch
26 10A Ignition (ON/ACC) - Analog
cluster, Warning lamp module,
LCM, Overdrive cancel switch,
Rear defroster relay coil
27 20A Cigar lighter, OBD II, Power point
28 10A Center High-Mounted Stop Lamp
(CHMSL)
29 15A Audio
30 15A Stop lamps, MFS
31 15A Hazards
32 10A Mirror heaters, Rear defroster
switch indicator
33 — Not used
Relay 1 Full ISO relay Rear defroster
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.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
186

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
RatingPower Distribution Box
Description
1 20A* Ignition switch (Key in, RUN 1,
RUN 2)
2 25A* Ignition switch (RUN/START,
RUN/ACC, START)
3 10A* Powertrain Control Module (PCM)
keep alive power
4 20A* Fuel relay feed
5 10A* Rear Air Suspension Module
(RASM), VASM
6 15A* Alternator regulator
7 30A* PCM relay feed
8 20A* Driver’s Door Module (DDM),
Door locks
9 15A* Ignition coil relay feed
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
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
187

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
10 20A* Horn relay feed
11 15A* A/C clutch relay feed
12 25A* Audio
13 20A* Instrument panel power point
14 20A* Stop lamp switch
15 20A* Heated seats
16 20A* Daytime Running Lamps (DRL)
module
17 — Not used
18 — Not used
19 15A* Injectors
20 15A* PCM, Mass Air Flow (MAF)
sensor
21 15A* Powertrain loads and sensors
22 — Not used
23 — Not used
24 5A* Radio mute
101 40A** Blower relay feed
102 50A** Cooling fan
103 50A** Instrument panel (I/P) fuse box
feed #1 (I/P fuses 23, 25, 27 and
31)
104 40A** Instrument panel (I/P) fuse box
feed #2 (I/P fuses 1, 3, 5, 7 and 9)
105 30A** Starter relay feed
106 40A** Anti-lock Brake System (ABS)
module (Pump)
107 40A** Rear defroster relay feed
108 20A** Moonroof
109 20A** ABS module (Valves)
110 30A** Wiper module
111 — Not used
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
188