sensor DODGE CARAVAN 2005 4.G Owners Manual

WARNING!
During power operation, personal injury or cargo
damage may occur. Ensure the liftgate travel path is
clear. Make sure the liftgate is closed and latched
before driving away.
NOTE:
•If anything obstructs the power liftgate while it is
closing or opening, the liftgate will automatically
reverse to the closed or open position, provided it
meets sufficient resistance.
•There are also pinch sensors attached to the side of the
liftgate opening. Light pressure anywhere along these
strips will cause the liftgate to return to the open
position.
•The power liftgate must be in the full open or close
positions for any of the buttons to operate. If the
liftgate is not in the full open or close positions it must
be opened or closed manually.
•If the liftgate release button is activated while the
power liftgate is closing, the liftgate will reverse to the
full open position.
•The power liftgate buttons will not operate if the
vehicle is in gear or the vehicle speed is above 0 mph
(0 km/h).
•The power liftgate will not operate in temperatures
below
12°F(
24°C) or temperatures above 143°F
(62°C). Be sure to remove any build-up of snow or ice
from the liftgate before pressing any of the power
liftgate buttons.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 37
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WARNING!
•Relying 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.
•Being too close to the steering wheel or instru-
ment 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.
•If the vehicle has window bags, they also need
room to inflate. Do not lean against the door or
window. Sit upright in the center of the seat.
The Airbag System consists of the following:
•Occupant Restraint Controller (ORC)
•AIRBAG Readiness Light
•Driver Airbag
•Front Passenger Airbag
•Window Bags above Side Windows (If Equipped)
•Front Impact Sensors
•Side Impact Sensors (If Equipped)
•Steering Wheel and Column
•Instrument Panel
•Seat Belt Readiness Light
•Front Seat Belt Pretensioners
•Interconnecting Wiring
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 57
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•Knee Impact Bolster
•Driver Inflatable Knee Blocker
•Front Passenger Seat Occupant Classification System
(OCS)—If Equipped
Occupant Classification Module
Passenger Airbag Disabled (PAD) Indicator Light
Interconnecting Wiring
Bladder Assembly
Belt Tension Sensor
How The Airbag System Works
•
TheOccupant 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 theproper rate of inflation. The front airbag inflators are
designed to provide different rates of airbag inflation.
•The ORC may modify the rate of inflation based on the
occupant size provided by the Occupant Classification
Module.
•The ORC will not detect side, roll over, or rear impacts.
•The ORC 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, instrument panel and passenger knee bol-
sters. 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 warn-
ing light and PAD indicator light in the
center of the instrument panel for 6 to 8
seconds for a self-check when the ignition is
58 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

first turned on. After the self-check, the AIRBAG
warning light will turn off. The PAD indicator light
will function normally (Refer to“Passenger Airbag
Disable (PAD) Indicator Light”in this section). If the
ORC detects a malfunction in any part of the system, it
turns on the AIRBAG warning light either momen-
tarily or continuously. A single chime will sound if the
light comes on again after initial start up.
WARNING!
Ignoring the AIRBAG warning light in your instru-
ment panel could mean you won’t have the airbags
to protect you in a collision. If the light does not
come on, stays on after you start the vehicle, or if it
comes on as you drive, have the airbag system
checked right away.
•TheDriver and Passenger Airbag/Inflator Unitsare
located in the center of the steering wheel and the right
side of the instrument panel. When the ORC and
impact sensors detects a collision requiring the air-
bags, it signals the inflator units. A large quantity of
nontoxic gas is generated to inflate the front airbags.
Different airbag inflation rates may be possible based
on collision severity and occupant 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 airbags inflate to their full size. The airbags fully
inflate in about 50–70 milliseconds. This is about half
of the time it takes to blink your eyes. The airbags then
quickly deflate while helping to restrain the driver and
front passenger.
The driver’s and passenger’s front airbag gas is vented
through the airbag material towards the instrument
panel. In this way the airbags do not interfere with
your control of the vehicle.
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•TheSide Impact SRS Window Bagsare designed to
activate only in certain side collisions. When the ORC
and the side impact sensors (with side impact option)
detects a collision requiring the window bags to
inflate, it signals the inflators on the crash side of the
vehicle. A quantity of nontoxic gas is generated to
inflate the window bag. The inflating window bag
pushes the outside edge of the headliner out of the
way and covers the window. The airbag inflates in
about 30 milliseconds (about one quarter of the time it
takes to blink your eyes) with enough force to injure
you if you are not belted and seated properly, or if
items are positioned in the area where the window bag
inflates. This especially applies to children. The win-
dow bag is only about 3
12inches (9 cm) thick when it
is inflated.
•When the ORC and the side impact sensors (with side
impact option) detects a collision requiring theDriver
Inflatable Knee Blocker, it signals the inflator unit. A
quantity of nontoxic gas is generated to inflate the
Driver Inflatable Knee Blocker. The Driver Inflatable
Knee Blocker 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
Inflatable Knee Blocker 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.
•TheKnee Impact Bolstershelp protect the knees, and
position everyone for the best interaction with the
front airbag.
60 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

•If your vehicle contains a Passenger Airbag Disable
indicator light, it will be equipped with theOccupant
Classification System (OCS).The OCS system will
classify an occupant into a size category based on
sensor readings from within the seat cushion. Occu-
pants 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 dash-
board), the OCS may not be able to properly approxi-
mate occupant size. Furthermore, the occupant size
may appear to increase or decrease due to objects
hanging on the seat, other passengers pushing on the
seat, or objects lodged underneath the seat. Ensure
that the front passenger seat back does not touch
anything placed on the back seat because this can also
affect occupant classification. Also, if you fold down
the rear seat, check to be sure it doesn’t touch the front
passenger 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 including your trim cover
and cushion needs to be serviced in any way (includ-
ing removal or loosening/tightening of seat attach-
ment bolts), 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 illuminate 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
indicator light and AIRBAG warning light 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 categories. The PAD indicator light
will illuminate indicating that the Passenger Airbag is
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•TheOccupant Classification Module (OCM)—If
Equippedis located beneath the front passenger seat.
The OCM classifies the occupant into one of three size
categories based on the input from the Bladder Assem-
bly and Belt Tension Sensor. The size categories in-
clude empty, child, and adult. The OCM sends the
Occupant Classification to the ORC to identify if a
front passenger airbag is allowed. If a fault is present,
the AIRBAG warning light is illuminated.
•ThePassenger Airbag Disabled (PAD) Indicator
Light—If Equippedindicates to the driver and
passenger when the airbag is turned OFF in the
presence of a properly seated occupant. When the PAD
indicator light is illuminated, the airbag is OFF. Also,
when the Occupant Classification System detects ei-
ther an empty seat or a weight less than the predeter-
mined occupant threshold, the ORC will not illumi-
nate the PAD indicator light even though the airbag isturned OFF. When the ocs system detects an adult the
PAD indicator light will be off, and the airbag will be
enabled.
•TheBelt Tension Sensor (BTS)—If Equippedis
located at the outboard passenger lap belt anchor. The
BTS generates a signal based on outboard lap belt
tension. This signal is sent to the OCM to ensure that
the resultant bladder pressure increase due to applied
lap belt tension does not cause a small occupant to be
classified as a larger occupant.
•TheBladder Assembly—If Equippedis located
beneath the seat cushion foam. The pressure sensor
sends a signal to the OCM.
The front passenger seat assembly contains critical com-
ponents that affect the front passenger airbag deploy-
ment. Correctly functioning front passenger seat compo-
nents are critical for the Occupant Classification System
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 63
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•At no time should any supplemental restraint system
(SRS) component or SRS related component or fas-
tener be modified or replaced with any part except
those which are approved by DaimlerChrysler/
Mopar.
If A Deployment Occurs
The airbag system is designed to deploy the airbags
when the ORC and impact sensors detect a moderate-to-
severe collision, to help restrain the vehicle passengers,
and then immediately deflate.
NOTE:A 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.
If you do have a collision which deploys the airbags, any
or all of the following may occur:
•The nylon airbag material may sometimes cause abra-
sions and/or skin reddening to the driver and frontpassenger 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.
•As the airbags deflate you may see some smoke-like
particles. The particles are a normal by-product of the
process that generates the nontoxic gas used for airbag
inflation. These airborne particles may irritate the skin,
eyes, nose, or throat. If you have skin or eye irritation,
rinse the area with cool water. For nose or 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 instruc-
tions for cleaning.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 65
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REAR PARK ASSIST SYSTEM—IF EQUIPPED
This system is used to help drivers determine if an
obstacle is in the way of the vehicle while it is backing up
in addition to the use of inside rearview and outside
mirrors.
When the driver selects Reverse the system scans for
objects behind the vehicle using four sensors located in
the rear bumper. Objects can be detected from up to 71
inches (180 cm). A warning display above the rear
window provides both visible and audible warnings
indicating the range of the object.
Rear Park Assist Indicator
144 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Customer Programmable Features—If Equipped
Press the“MENU”button until one of the display choices
following appears:
Language
When in this display you may select one of five lan-
guages for all display nomenclature, including the trip
computer functions. Press the“STEP”button while in
this display selects English, Francaise, Deutsch, Italiano,
or Espanol. As you continue the displayed information
will be shown in the selected language.
Rear Park Assist—If Equipped
When this feature is selected the system scans for objects
behind the vehicle using four sensors located in the rear
bumper. Objects can be detected from up to 71 inches
(180 cm). Pressing the“STEP”button while in this
display will disable/enable the Rear Park Assist System.
US or Metric
Pressing the“STEP”button when in this display selects
US or Metric. The overhead console and climate control
displays will be in the selected units.
Service Interval
When this feature is selected a service interval between
2,000 miles (3 200 km) and 6,000 miles (9 600 km) in 500
mile (800 km) increments may be selected. Pressing the
“STEP”button when in this display will select distances
between 2,000 miles (3 200 km) and 6,000 miles (9 600
km) in 500 mile (800 km) increments.
Reset Service Distance (Displays Only if Service
Interval was Changed)
When this feature is selected the current accumulated
service distance can be reset to the newly selected service
interval. Pressing the“STEP”button when in this display
will select“Ye s”or“No.”
156 UNDERSTANDING THE FEATURES OF YOUR VEHICLE