sensor CHRYSLER PT CRUISER 2008 1.G Owners Manual

WARNING!
²Relying on the airbags alone could lead to more
severe injuries in a collision. The airbags work
with your seat belt to restrain you properly. In
some collisions the airbags won't deploy at all.
Always wear your seat belts even though you have
airbags.
²Being too close to the steering wheel or instrument
panel during front airbag deployment could cause
serious injury. Airbags need room to inflate. Sit
back, comfortably extending your arms to reach
the steering wheel or instrument panel.
²Seat airbags also need room to inflate. Do not lean
against the door. Sit upright in the center of the
seat.The front airbag system consists of the following:
²Occupant Restraint Controller
²Side Remote Acceleration Sensors (If equipped)
²Airbag Warning Light
²Driver and Front Passenger Airbag
²Front Seat Mounted Head/Thorax Airbags (if
equipped)
²Steering Wheel and Column
²Instrument Panel
²Driver and Front Passenger Knee Impact Blockers
²Front Acceleration Sensors
²Driver and Front Passenger Seat Belt Pretensioners
²Passenger Airbag Disable (PAD) Indicator Light
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 59
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The Head/Thorax airbag system (if equipped) consists
of the following:
²AIRBAG Readiness Light (shared with the front airbag
system)
²Front SeatÐ side mounted Head/Thorax Airbags Ð if
equipped
²Airbag Control Module (shared with the front airbag
system)
²Side impact sensors
How The Airbag System Works
²
TheOccupant Restraint Controller (ORC)determines
if a frontal collision is severe enough to require the
airbags to inflate. The front airbag inflators are de-
signed to provide different rates of airbag inflation
from direction provided by the ORC. The ORC mayalso modify the rate of inflation based on the occupant
size provided by the Occupant Classification Module.
The ORC will not detect roll over.
The ORC also monitors the readiness of the electronic
parts of the system whenever the ignition switch is in
the START or RUN positions. These include all of the
items listed above except the steering wheel and
column, and knee blocker panels. 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.
During a moderate-to-severe rear impact the ORC may
deploy the seat belt pretensioners alone.
Also, the ORC turns on the AIRBAG warning
light and PAD indicator light in the instrument
panel for six to eight 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 indicator light will function normally (Refer to
60 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Passenger Airbag Disable (PAD) System
Front Passenger Indicator Light Airbag Status
Adult OFF ON
Child ON OFF
Grocery Bags,
Heavy Briefcases
and Other Rela-
tively Light Ob-
jectsON OFF
Empty or Very
Small ObjectsOFF* OFF
* Since the system senses weight, some small objects
will turn the PAD Indicator Light on.
Drivers and adult passengers should verify that the PAD
Indicator Light is not illuminated when an adult is riding
in the front passenger seat. If an adult occupant's weight
is transferred to another part of the vehicle (like the door
or instrument panel), the weight sensors in the seat maynot properly classify the occupant. Objects lodged under
the seat or between the seat and the center console can
prevent the occupant's weight from being measured
properly and may result in the occupant being improp-
erly classified. Ensure that the front passenger seat back
does not touch anything placed on the second row of
seats because this can also affect occupant classification.
Also, if you fold down the seats in the second row check
to be sure they don't touch the front passenger seat.
If the front passenger seat is damaged in any way, it
should only be serviced by an authorized dealer. If the
seat is removed (or even if the seat attachment bolts are
loosened or tightened in any way), take the vehicle to an
authorized dealer.
If there is a fault present in the Airbag Warning Light (a
red light located in the center of the instrument cluster
directly in front of the driver) will be turned on. This
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 63
2

indicates that you should take the vehicle to an autho-
rized dealer. The Airbag Warning Light is turned on
whenever there is fault that can affect the operation of the
airbag system. If there is a fault present in the PAD
Indicator Light the Airbag Warning Light remains illu-
minated to show that the passenger airbag is turned off
until the fault is cleared. If an object is lodged under the
seat and interferes with operation of the weight sensors,
a fault will occur which turns on both the PAD Indicator
Light and the Airbag Warning Light. Once the lodged
object is removed, the fault will be automatically cleared
after a short period of time.
²TheDriver and Passenger Airbag/Inflator Unitsare
located in the center of the steering wheel and the right
side of the instrument panel. When the ORC detects a
collision requiring the airbags, it signals the inflator
units. A large quantity of nontoxic gas is generated to
inflate the front airbags. Different airbag inflation ratesmay be possible based on collision severity and occu-
pant size. The steering wheel hub trim cover and the
upper right side of the instrument panel separate and
fold out of the way as the bags inflate to their full size.
The bags fully inflate in about 50 - 70 milliseconds.
This is about half of the time it takes to blink your eyes.
The bags then quickly deflate while helping to restrain
the driver and front passenger. The driver's front
airbag gas is vented through vent holes in the sides of
the airbag. The passenger's front airbag gas is vented
through vent holes in the sides of the airbag. In this
way the airbags do not interfere with your control of
the vehicle.
²TheOccupant Classification Module (OCM)is lo-
cated beneath the front passenger seat. The OCM
classifies the occupant into categories based on the
measurements made by the seat weight sensors. The
OCM communicates with the ORC. The ORC uses the
occupant category to determine whether the front
64 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

passenger airbag should be turned off. It also deter-
mines the rate of airbag inflation during a collision.
²Your vehicle has fourWeight Sensorslocated between
the seat and the floor pan. The weight sensors measure
applied weight and transfers that information to the
OCM.
²TheHead/Thorax Side AirbagsÐIf Equipped (SRS)
are designed to activate only in certain side collisions.
The ORC module determines if a side collision is
severe enough to require the Head/Thorax airbags to
inflate. The side airbag control module will not detect
roll over, front or rear collisions.
The ORC Module monitors the readiness of the electronic
parts of the system whenever the ignition switch is in the
START or ON positions. These include all of the items
listed underªThe Head/Thorax side airbag system
consists of the followingº.In moderate to severe side collisions the inflating Head/
Thorax airbag exits through the seat seam into the space
between the occupant and the door. The Head/Thorax
airbag moves at a very high speed and with such a high
force, that it could injure you if you are not seated
properly, or if items are positioned in the area where the
airbag inflates. This especially applies to children.
The following requirements must be strictly adhered to:
²Do not modify the front passenger seat assembly or
components in any way.
²Do not modify the front seat center console or center
position seat in any way.
²Do not use prior or future model year seat covers not
designated for the specific model being repaired. Al-
ways use the correct seat cover specified for the
vehicle.
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Airbag Light
You will want to have the airbags ready to inflate for your
protection in a collision. While the airbag system is
designed to be maintenance free, if any of the following
occurs, have an authorized dealer service the system
immediately.
²The AIRBAG light does not come on during the six to
eight seconds when the ignition switch is first turned
on.
²The light remains on after the six to eight second
interval.
²The light comes on and remains on while driving.
Event Data Recorder (EDR)
In the event of an accident, your vehicle is designed to
record up to five - seconds of specific vehicle data
parameters (see list below) in an event data recorderprior to the moment of airbag deployment, or near-
deployment, and up to a quarter second of high-speed
deceleration data during and/or after airbag deployment
or near-deployment. EDR data are ONLY recorded if an
airbag deploys, or nearly deploys, and are otherwise
unavailable.
NOTE:
1. A near-deployment event occurs when the airbag
sensor detects severe vehicle deceleration usually indica-
tive of a crash, but not severe enough to warrant airbag
deployment.
2. Under certain circumstances, EDR data may not be
recorded (e.g., loss of battery power).
In conjunction with other data gathered during a com-
plete accident investigation, the electronic data may be
used by DaimlerChrysler and others to learn more about
the possible causes of crashes and associated injuries in
order to assess and improve vehicle performance. In
70 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

WARNING!
²Relying on the airbags alone could lead to more
severe injuries in a collision. The airbags work
with your seat belt to restrain you properly. In
some collisions the airbags won't deploy at all.
Always wear your seat belts even though you have
airbags.
²Being too close to the steering wheel or instrument
panel during front airbag deployment could cause
serious injury. Airbags need room to inflate. Sit
back, comfortably extending your arms to reach
the steering wheel or instrument panel.
²If the vehicle has Head/Thorax airbags, they also
need room to inflate. Do not lean against the door.
Sit upright in the center of the seat.The front airbag system consists of the following:
²Occupant Restraint Controller
²Side Remote Acceleration Sensors (If Equipped)
²Airbag Warning Light
²Driver Airbag
²Passenger Airbag
²Front Seat Mounted Head/Thorax Airbags (if
equipped)
²Steering Wheel and Column
²Instrument Panel
²Driver and Front Passenger Knee Impact Blockers
²Front Acceleration Sensors
²Driver and Front Passenger Seat Belt Pretensioners
²Passenger Airbag Disable (PAD) Indicator Light
94 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

The Head/Thorax airbag system (if equipped) consists
of the following:
²AIRBAG Readiness Light (shared with the front airbag
system)
²Front SeatÐ side mounted Head/Thorax Airbags Ð if
equipped
²Airbag Control Module (shared with the front airbag
system)
²Side impact sensors
How The Airbag System Works
²
TheOccupant Restraint Controller (ORC)determines
if a frontal collision is severe enough to require the
airbags to inflate. The front airbag inflators are de-
signed to provide different rates of airbag inflation
from direction provided by the ORC. The ORC mayalso modify the rate of inflation based on the occupant
size provided by the Occupant Classification Module.
The ORC will not detect roll over.
The ORC also monitors the readiness of the electronic
parts of the system whenever the ignition switch is in
the START or RUN positions. These include all of the
items listed above except the steering wheel and
column, and knee impact blockers. 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.
During a moderate-to-severe rear impact the ORC may
deploy the seat belt pretensioners alone.
Also, the ORC turns on the AIRBAG warning
light and PAD indicator light in the instrument
panel for six to eight 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 indicator light will function normally (Refer to
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 95
2

Passenger Airbag Disable (PAD) System
Front Passenger Indicator Light Airbag Status
Adult OFF ON
Child ON OFF
Grocery Bags,
Heavy Briefcases
and Other Rela-
tively Light Ob-
jectsON OFF
Empty or Very
Small ObjectsOFF* OFF
* Since the system senses weight, some small objects
will turn the PAD Indicator Light on.
Drivers and adult passengers should verify that the PAD
Indicator Light is not illuminated when an adult is riding
in the front passenger seat. If an adult occupant's weight
is transferred to another part of the vehicle (like the door
or instrument panel), the weight sensors in the seat maynot properly classify the occupant. Objects lodged under
the seat or between the seat and the center console can
prevent the occupant's weight from being measured
properly and may result in the occupant being improp-
erly classified. Ensure that the front passenger seat back
does not touch anything placed on the second row of
seats because this can also affect occupant classification.
Also, if you fold down the seats in the second row check
to be sure they don't touch the front passenger seat.
If the front passenger seat is damaged in any way, it
should only be serviced by an authorized dealer. If the
seat is removed (or even if the seat attachment bolts are
loosened or tightened in any way), take the vehicle to an
authorized dealer.
If there is a fault present in the Airbag Warning Light (a
red light located in the center of the instrument cluster
directly in front of the driver) will be turned on. This
98 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

indicates that you should take the vehicle to an autho-
rized dealer. The Airbag Warning Light is turned on
whenever there is fault that can affect the operation of the
airbag system. If there is a fault present in the PAD
Indicator Light the Airbag Warning Light remains illu-
minated to show that the passenger airbag is turned off
until the fault is cleared. If an object is lodged under the
seat and interferes with operation of the weight sensors,
a fault will occur which turns on both the PAD Indicator
Light and the Airbag Warning Light. Once the lodged
object is removed, the fault will be automatically cleared
after a short period of time.
²TheDriver and Passenger Airbag/Inflator Unitsare
located in the center of the steering wheel and the right
side of the instrument panel. When the ORC detects a
collision requiring the airbags, it signals the inflator
units. A large quantity of nontoxic gas is generated to
inflate the front airbags. Different airbag inflation ratesmay be possible based on collision severity and occu-
pant size. The steering wheel hub trim cover and the
upper right side of the instrument panel separate and
fold out of the way as the bags inflate to their full size.
The bags fully inflate in about 50 - 70 milliseconds.
This is about half of the time it takes to blink your eyes.
The bags then quickly deflate while helping to restrain
the driver and front passenger. The driver's and pas-
senger's front airbag gas is vented through holes in the
sides of the airbag. In this way the airbags do not
interfere with your control of the vehicle.
²TheOccupant Classification Module (OCM)is lo-
cated beneath the front passenger seat. The OCM
classifies the occupant into categories based on the
measurements made by the seat weight sensors. The
OCM communicates with the ORC. The ORC uses the
occupant category to determine whether the front
passenger airbag should be turned off. It also deter-
mines the rate of airbag inflation during a collision.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 99
2