sensor LINCOLN MKZ 2007 User Guide

How does the side air curtain system work?
The design and development of the
side air curtain 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 (including side air
curtain systems).
The side air curtain system consists
of the following:
•An inflatable nylon curtain with a
gas generator concealed behind
the headliner and above the
doors.
•The headliner will flex to open
above the side doors to allow air curtain deployment.
•The same warning light, electronic control and diagnostic unit as used
for the front airbags.
•Two crash sensors located under the outboard side of the front seats,
attached near the floor.
•Two crash sensors located at the base of the “C” pillars above the
wheel house.
Side air curtains and side airbags, in combination with safety belts, can
help reduce the risk of severe injuries in the event of a significant side
impact collision.
The side air curtains are mounted to the sheet metal above the first and
second row seats. In certain lateral collisions, the air curtain and
seat-mounted side airbag on the side affected by the collision will be
inflated, except that the passenger sensing system will deactivate the
passenger seat-mounted side airbag if it detects an empty unbuckled
passenger seat. The air curtain was designed to inflate between the side
window area and occupant to further enhance the head protection
provided to occupants in side impact collisions. The seat-mounted side
airbag was designed to inflate between the door panel and occupant to
further enhance the protection provided occupants in side impact
collisions.
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The side air curtain system SRS is designed to activate when the vehicle
sustains lateral deceleration sufficient to cause the sensors to close an
electrical circuit that initiates air curtain and seat-mounted side airbag
inflation.
The fact that the side air curtain and seat-mounted side airbag did not
inflate in a collision does not mean that something is wrong with the
system. Rather, it means the forces were not of the type sufficient to
cause activation. The side air curtain system is designed to inflate in side
impact collisions, not roll-over, rear impact, frontal or near-frontal
collisions, unless the collision causes sufficient lateral deceleration.
Several air bag system components get hot after inflation. Do not
touch them after inflation.
If the side air curtain has
deployed,the air curtain
will not function again. The
side air curtain system
(including the A, B and C
pillar trim and headliner) must
be inspected and serviced by
an authorized dealer.If the air
curtain is not replaced, the
unrepaired area will increase the
risk of injury in a collision.
Determining if the system is operational
The SRS uses a readiness light in the instrument cluster or a tone to
indicate the condition of the system. Refer to theAirbag readiness
section in theInstrument clusterchapter. Routine maintenance of the
airbag is not required.
Any difficulty with the system is indicated by one or more of the
following:
•The readiness light (same light as used for front airbag system) will
either flash or stay lit.
•The readiness light will not illuminate immediately after ignition is
turned to the RUN position.
•A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and light are repaired.
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L
Lamps
autolamp system .......................36
bulb replacement
specifications chart ..................41
daytime running light ...............37
fog lamps ...................................37
headlamps .................................36
headlamps, flash to pass ..........38
instrument panel, dimming .....38
interior lamps ...........................40
replacing bulbs .........................42
Lane change indicator
(see Turn signal) ........................40
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........174
Load limits .................................163
Locks
autolock .....................................80
childproof ..................................84
doors ..........................................79
Lubricant specifications ...........253
Lug nuts ....................................201
Lumbar support, seats .............103
M
Message center ...........................68
english/metric button ...............73
system check button ................72
warning messages .....................73
Mirrors .........................................57
automatic dimming
rearview mirror .........................57
heated ........................................58
programmable memory ............88
side view mirrors (power) .......57
Moon roof ..............................62, 87Motorcraft parts ........220, 237, 252
N
Navigation system .......................28
O
Octane rating ............................241
Oil (see Engine oil) ..................226
P
Parking brake ............................175
Parts (see Motorcraft parts) ....252
Passenger Occupant
Classification Sensor .................108
Power distribution box
(see Fuses) ...............................192
Power door locks ........................79
Power mirrors .............................57
Power point .................................54
Power steering ..................176–177
fluid, checking and adding ....248
fluid, refill capacity ................253
fluid, specifications .................253
Power Windows ...........................55
Power windows
opening using remote entry
system .......................................87
R
Radio ............................................16
Relays ........................................190
Remote entry system ...........86–87
illuminated entry ................90–91
locking/unlocking doors ...........87
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opening the trunk .....................88
opening the windows ...............87
panic alarm ...............................88
replacement/additional
transmitters ...............................90
replacing the batteries .............89
Roadside assistance ..................187
S
Safety Belt Maintenance ..........115
Safety belts (see Safety
restraints) ..........107, 110, 112–115
Safety Canopy ...........................130
Safety defects, reporting ..........214
Safety
restraints ...........107, 110, 112–115
BeltMinder
............................116
extension assembly ................115
for adults .........................112–114
for children .............................136
Occupant Classification
Sensor ......................................108
safety belt maintenance .........115
warning light and chime ........116
Safety seats for children ..........140
Safety Compliance
Certification Label ....................257
Satellite Radio Information ........24
Seat belts
(see Safety restraints) .............107
Seats ..........................................100
child safety seats ....................140
climate control ........................104
front seats ...............................100
heated ........................................29
memory seat .............................88SecuriLock passive anti-theft
system ..........................................94
Servicing your vehicle ..............222
Side air curtain .........................133
Spark plugs,
specifications .....................252, 256
Specification chart,
lubricants ...................................253
Speed control ..............................58
Starting your vehicle ........170–172
jump starting ..........................202
Steering
speed sensitive .......................177
Steering wheel
controls ......................................61
tilting .........................................52
T
Tilt steering wheel ......................52
Tires ...........................148–149, 195
alignment ................................156
care ..........................................152
changing ..........................195, 198
checking the pressure ............152
inflating ...................................150
label .........................................162
replacing ..................................154
rotating ....................................156
safety practices .......................155
sidewall information ...............157
snow tires and chains ............163
spare tire .................................196
terminology .............................149
tire grades ...............................149
treadwear ........................148, 153
Towing .......................................168
recreational towing .................168
trailer towing ..........................168
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