2002 Mercury Grand Marquis sensor

The air bags inflate and deflate
rapidly upon activation. After air bag
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
air bag. 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 air bag may also cause abrasions, swelling or temporary
hearing loss. Because air bags 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 air bag deployment. Thus, it is extremely important that occupants be
properly restrained as far away from the air bag module as possible while
maintaining vehicle control.
The SRS consists of:
²driver and passenger air bag modules (which include the inflators and
air bags)
²one or more impact and safing sensors
²a readiness light and tone
²a diagnostic module
²and the electrical wiring which connects the components
The diagnostic module monitors its own internal circuits and the
supplemental air bag electrical system warning (including the impact
sensors), the system wiring, the air bag system readiness light, the air
bag back up power and the air bag ignitors.
Several air bag system components get hot after inflation. Do not
touch them after inflation.
Seating and Safety Restraints
128

rear brakes, the vehicle's stopping distance will increase greatly and the
handling of your vehicle will be adversely affected.
Your vehicle has an automatic parking brake release (except for
police/fleet vehicles which have the manual release). To release the
parking brake:
1. Turn the ignition to the ON position.
2. Press the brake pedal.
3. Move the gearshift from the P (Park) position to one of the forward
gears (the parking brake will not release automatically when you shift
into reverse). The brake pedal must remain pressed while the gearshift is
moved.
If the parking brake fails to release
after completing this procedure, use
the manual parking brake release
lever.
Pull the lever to manually release
the parking brake.
TRACTION CONTROLY(IF EQUIPPED)
Your vehicle may be equipped with the optional Traction Controly
system. This system helps you maintain the stability and steerability of
your vehicle. It is especially useful on slippery and/or hilly road surfaces.
The system operates by detecting and controlling wheel spin. The system
borrows many of the electronic and mechanical elements already present
in the anti-lock braking system (ABS).
Wheel-speed sensors allow excess rear wheel spin to be detected by the
Traction Controlyportion of the ABS computer. Any excessive wheel
spin is controlled by automatically applying and releasing the rear brakes
in conjunction with engine torque reductions. Engine torque reduction is
realized via the fully electronic spark and fuel injection systems. This
process is very sensitive to driving conditions and very fast acting. The
rear wheels ªsearchº for optimum traction several times a second and
adjustments are made accordingly.
HOOD
Driving
145

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
23 15A Power Windows/Door Locks,
PATS, Exterior Rear View Mirrors,
EATC Module, Instrument Cluster,
Clock, Lighting Control Module
(LCM), Interior Lamps
24 10A Left Hand Low Beam
25 20A Power Point, Cigar Lighter
26 10A Right Hand Low Beam
27 25A Lighting Control Module (LCM),
Main Light Switch, Cornering
Lamps, Fuel Tank Pressure
Sensor
28 20A* Power Windows
29 Ð Not Used
30 Ð Not Used
31 Ð Not Used
32 20A ABS Values
* Maxi fuse
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.
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.
Roadside Emergencies
164

Lubricant specifications ...232±233
Lumbar support, seats .............108
M
Message center ...........................84
reset button ..............................84
select button .............................85
Mirrors
automatic dimming rearview
mirror ........................................72
heated ........................................72
side view mirrors (power) .......72
Motorcraft parts ................214, 230
O
Octane rating ............................213
Odometer .....................................21
Oil (see Engine oil) ..................197
Overdrive .............................89, 150
P
Panic alarm feature, remote
entry system ................................96
Parking brake ............................144
Parts (see Motorcraft parts) ....230
Passenger Occupant
Classification Sensor .................112
Pedals (see Power adjustable
foot pedals) .................................74
Power distribution box
(see Fuses) ...............................164
Power door locks ..................92, 99
Power steering ..................146±147
fluid, checking and adding ....220fluid, refill capacity ................230
fluid, specifications .........232±233
R
Rear window defroster ...............58
Relays ................................161, 166
Remote entry system ...........94, 96
illuminated entry ......................98
locking/unlocking doors .....92, 95
opening the trunk .....................96
panic alarm ...............................96
replacement/additional
transmitters ...............................98
replacing the batteries .............97
S
Safety belts (see Safety
restraints) ............16, 110, 114±118
Safety defects, reporting ..........186
Safety restraints ........110, 114±118
belt minder .............................120
cleaning the safety
belts .................................124, 192
extension assembly ................124
for adults .........................115±117
for children .............................130
lap belt ....................................118
Occupant Classification
Sensor ......................................112
warning light and
chime ...................13, 16, 119±120
Safety seats for children ..........131
Seat belts
(see Safety restraints) .............110
Seats ..........................................106
child safety seats ....................131
cleaning ...................................191
Index
244