2007 CHRYSLER CROSSFIRE sensor

Airbag System Components
The airbag system consists of the following:
²Occupant Restraint Controller
²Airbag Warning Light
²Driver and passenger frontal airbag/inflator units
²Driver and passenger side airbag/inflator units
²Driver and Passenger Inflatable Knee Blocker
²Driver and Front Passenger Seat Belt Pretensioners
²Side impact sensors
²Front Passenger Seat Occupant Classification System
(OCS)
How the Front Airbag System Works
²
The Occupant Restraint Controller (ORC) determines
if a frontal collision is severe enough to require the
airbags to inflate. Based on the level of collision
severity, the front control module determines the
proper rate of inflation. The front airbag inflators are
designed to provide different rates of airbag inflationfrom direction provided by the ORC. The ORC may
modify the rate of inflation based on the occupant size
provided by the Occupant Classification Module. The
ORC will not detect roll overs. The ORC monitors the
readiness of the electronic parts of the system when-
ever the ignition switch is in the START or RUN
positions. If the key is in the OFF position, in the ACC
position, or not in the ignition, the airbags are not on
and will not inflate.
Also, the ORC turns on the AIRBAG warning light
(located in the instrument cluster) and Passenger
Airbag Disable (PAD) indicator light (located in the
center console) for 4 seconds for a self-check when the
ignition is first turned on. After the self-check, the
AIRBAG warning light will turn off. The PAD indica-
tor light will function normally (Refer to ªPassenger
Airbag Disable (PAD) Indicator Lightº in this section).
If the ORC detects a malfunction in any part of the
system, it turns on the AIRBAG warning light either
momentarily or continuously.
34 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

²The Knee Blocker Airbag helps protect the knees and
working with the seatbelts, position you for the best
interaction with the airbags.If a Deployment Occurs
WARNING!
Deployed airbags can't protect you in another colli-
sion. Have the airbags replaced by an authorized
dealer as soon as possible.
The airbag system is designed to deploy when the impact
sensors detect a moderate-to-severe frontal collision, to
help restrain the driver and passenger, and then to
immediately deflate.
NOTE:A frontal collision that is not severe enough to
need airbag protection will not activate the system. This
does not mean something is wrong with the airbag
system. The system may also inflate only one airbag in a
reduced severity frontal collision if the seat belt on that
side of the vehicle is not fastened. This also does not
mean something is wrong with your airbag system.
36 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

If you do have a collision which deploys the airbags, any
or all of the following may occur:
²The nylon airbag material may sometimes cause abra-
sions and/or skin reddening to the driver and passen-
ger as the airbags deploy and unfold. The abrasions
are similar to friction rope burns or those you might
get sliding along a carpet or gymnasium floor. They
are not caused by contact with chemicals. They are not
permanent and normally heal quickly. However, if you
haven't healed significantly within a few days, or if
you have any blistering, see your doctor immediately.
²As the airbags deflate, you may see some smoke-like
particles. The particles are a normal by-product of the
process that generates the nontoxic nitrogen gas used
for airbag inflation. These airborne particles may irri-
tate the skin, eyes, nose, or throat. If you have skin or
eye irritation, rinse the area with cool water. For noseor throat irritation, move to fresh air. If the irritation
continues, see your doctor. If these particles settle on
your clothing, follow the garment manufacturer's in-
structions for cleaning.
²It is not advisable to drive your vehicle after the
airbags have been deployed. If you are involved in
another collision, the airbags will not be in place to
protect you.
How the Side Impact Airbag System Works
²
The side impact airbags are located in the doors above
the armrest.
²The ORC determines if a side impact is severe enough
to require the airbag on the side of the vehicle sub-
jected to an impact. As with the frontal system, the
sensors are connected to the diagnostic unit and the
airbag/inflator units.
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²When a side impact above a predetermined threshold
occurs, the sensors signal the inflator on the impacted
side of the vehicle. A large quantity of nontoxic
nitrogen gas is generated to inflate the airbag. The
door panel opens to allow the airbag to inflate to its
full size.WARNING!
²Do not put anything on or around the airbag
covers or attempt to manually open them. You may
damage the airbags and you could be injured
because the airbags are not there to protect you.
These protective covers are designed to open only
when the airbags are inflated.
²Do not attach cup holders or any other objects on
or around the door. The inflating side airbag could
drive the objects into occupants, causing serious
injury.
38 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

How the Occupant Classification System (OCS)
System Works
The Occupant Classification System (OCS) will classify
an occupant in the front passenger seat into a size
category based on sensor readings from within the seat
cushion. Occupants should try to remain in a normally
seated position. If the occupant's weight is transferred to
another object in the vehicle (i.e. feet on the dashboard),
the OCS may not be able to properly approximate
occupant size. Furthermore, the occupant size may ap-
pear to increase or decrease due to objects hanging on the
seat, other passengers pushing on the seat, or objects
lodged underneath the seat. If there is a rapid change in
temperature or humidity, the OCS may not be able to
properly approximate occupant size. If your seat includ-
ing your trim cover and cushion needs to be serviced in
any way, take the vehicle to your authorized dealer. Only
manufacturer approved seat accessories may be used. If
there is a fault present in the system, the AIRBAG
warning light will light indicating that you should take
the vehicle to an authorized dealer. In the presence of an
occupant in the passenger seat, if both the PAD indicatorlight (located in the center console) and AIRBAG warn-
ing light (located in the instrument cluster) are illumi-
nated the airbag will be disabled. The ORC will not allow
front airbag deployment in the event of a collision for
occupants classified into the empty or child size catego-
ries. The PAD indicator light will illuminate indicating
that the Passenger Airbag is OFF when the OCS has
determined that the occupant size category is a child.
Also, when the seat is empty or an object that weighs less
than a predetermined threshold is placed on the seat, the
light will remain OFF. (The PAD indicator light is an
amber light located in the center console.) For almost all
sizes of properly seated adults, the passenger frontal
airbag will be enabled in the event of a collision. For
small teenagers and some small adults, depending on
size, the airbag may or may not be enabled in the event
of a collision. Both drivers and passengers should always
use the PAD indicator light as an indication if the front
passenger is properly positioned or not. If the PAD
indicator light comes on when an adult is in the passen-
ger seat, have the passenger re-position themselves in the
seat until the light goes out. Remember, if the PAD
indicator light is illuminated the passenger front airbag
40 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

How the Occupant Classification Module (OCM)
Works
The Occupant Classification Module (OCM) is located
beneath the passenger seat.. The OCM classifies the
occupant into one of three size categories based on the
input from the Bladder Assembly and a Belt Tension
Sensor. The size categories include empty, child, and
adult. The OCM sends the Occupant Classification to the
ORC to determine if a front passenger airbag is allowed.
If a fault is present, the AIRBAG warning light is illumi-
nated.
How the Passenger Airbag Disabled (PAD)
Indicator Light Works
The Passenger Airbag Disabled (PAD) Indicator Light
indicates to the driver and passenger when the airbag is
turned OFF. In the presence of a properly seated occu-
pant, when the PAD indicator light is illuminated, the
airbag is OFF. Also, when the Occupant Classification
System detects either an empty seat or a weight less than
the predetermined threshold, the ORC will not illuminate
the PAD indicator light even though the airbag is turned
OFF.
How the Belt Tension Sensor (BTS) Works
The Belt Tension Sensor (BTS) is located at the outboard
passenger lap belt anchor. The BTS creates a signal based
on outboard lap belt tension. This signal is sent to the
OCM to ensure that the resultant bladder pressure in-
crease due to applied lap belt tension does not cause a
small occupant to be classified as a larger occupant
How the Bladder Mat and Pressure Sensor Works
The Bladder Mat and Pressure Sensor are located beneath
the seat cushion foam. The pressure sensor sends a signal
to the OCM. The passenger seat assembly contains criti-
cal components that affect the passenger airbag deploy-
ment. Correctly functioning passenger seat components
are critical for the Occupant Classification System (OCS)
to properly classify the passenger and calculate the
proper airbag deployment. Do not make any modifica-
tions to the passenger seat components, assembly, or to
the seat cover.
42 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

How the Driver/Passenger Inflatable Knee
Blockers Works
When the ORC and the impact sensors detect a collision
requiring the Driver/Passenger Inflatable Knee Blockers,
it signals the inflator unit. A quantity of nontoxic gas is
generated to inflate the Driver/Passenger Inflatable Knee
Blockers. The Driver/Passenger Inflatable Knee Blockers
inflates rearward towards the driver 's knees to help
protect the knees and position you for the best interaction
with the front airbag. The Driver/Passenger Inflatable
Knee Blockers fully inflates in about 50 milliseconds, this
is only about half of the time it takes you to blink your
eyes. It then quickly deflates while helping to protect the
driver 's knees.
The Knee Impact Blockers help protect the knees and
position the occupant.
Passenger Front Airbag On/Off Switch
The ON/OFF switch is located at the right end of the
instrument panel and is accessible by opening the pas-
senger door.
NOTE:When using certain types of child seats, the
passenger airbag light will remain off even though the
passenger front airbags are disabled.
It is always recommended to turn off the passenger front
air bags using the passenger front airbags on/off switch
located at the right end of the instrument panel when the
passenger is:
²an infant (less than 1 year old),
²a child, age 1 to 12,
²an adult with a medical condition which makes pas-
senger airbag inflation (deployment) a greater risk for
the passenger than the risk of hitting the dashboard
(instrument panel) or windshield in a crash.
The on/off switch is accessible by opening the passenger
door.
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TIRE PRESSURE MONITOR SYSTEM (if equipped)
Each tire should be checked monthly when cold and
inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire infla-
tion pressure label. (If your vehicle has tires of a different
size than the size indicated on the vehicle placard or tire
inflation pressure label, you should determine the proper
tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system (TPMS)
that illuminates a low tire pressure telltale when on ormore of your tires is significantly underÐinflated. Ac-
cordingly, when the low tire pressure telltale illuminates,
you should stop and check your tires as soon as possible,
and inflate them to the proper pressure, Driving on a
significantly under-inflated tire causes the tire to over-
heat and can lead to tire failure. Under-inflation also
reduced fuel efficiency and tire tread life, and may affect
the vehicle's handling and stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver's responsibility to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the TPMS
low tire pressure telltale.
The Tire Pressure Monitor (TPM) system uses wireless
technology to monitor tire pressure levels. Sensors
mounted to each wheel as part of the valve stem transmit
tire pressure readings to a receiver located inside the
vehicle.
NOTE:The TPM system can inform you about a low
tire pressure condition, but it does not replace normal tire
maintenance. The TPM system is not intended to provide
you with notification of rapid tire pressure loss.
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