wheel CHRYSLER VOYAGER 2005 Service Manual

CONDITION POSSIBLE CAUSE CORRECTION
(6) CLOCKSPRING
INOPERATIVE.(6) REPLACE CLOCKSPRING.
(7) FRONT CONTROL
MODULE INOPERATIVE.(7) REFER TO ELECTRONIC CONTROL
MODULES/FRONT CONTROL MODULE.
FUSE BLOWS WHEN HORN SOUNDS (1) SHORT CIRCUIT IN
HORN OR HORN WIRING.(1) REMOVE HORN RELAY, CHECK
FOR SHORTED HORN OR HORN
WIRING. DISCONNECT HORN WIRE
HARNESS TO ISOLATE SHORT AND
REPAIR AS NECESSARY.
(2) CLOCKSPRING
INOPERATIVE.(2) REPLACE CLOCKSPRING.
FUSE BLOWS WITHOUT BLOWING
HORN(1) SHORT CIRCUIT. (1) REMOVE RELAY, INSTALL NEW
FUSE, IF FUSE DOES NOT BLOW
REPLACE HORN RELAY. IF FUSE
BLOWS WITH RELAY REMOVED,
CHECK FOR SHORT TO GROUND
WITH OHMMETER ON CIRCUIT
BETWEEN TERMINALS 30 & 86 AND
THE FUSE TERMINAL. REPAIR AS
NECESSARY.
(2) CLOCKSPRING
INOPERATIVE.(2) REPLACE CLOCKSPRING.
HORN
DIAGNOSIS AND TESTING
HORN
HORN
(1) Disconnect wire connector at horn.
(2) Using a voltmeter, connect one lead to ground
terminal and the other lead to the positive wire ter-
minal (Fig. 1).
(3) Depress the horn switch, battery voltage
should be present.
(4) If no voltage, refer toHORNS WILL NOT
SOUND. If voltage is OK, go to step Step 5.
(5) Using ohmmeter, test ground wire for continu-
ity to ground.
(6) If no ground repair as necessary.
(7) If wires test OK and horn does not sound,
replace horn.
HORNS SOUND CONTINUOUSLY
CAUTION: Continuous sounding of horns may
cause relay to fail.
The horn switch (membrane) sometimes can be the
cause without the switch being depressed.(1) Remove the horn relay from the intelligent
power module.
(2)
Using a continuity tester, test continuity from the
X3 cavity of the horn relay to ground. Refer to the
appropriate wiring information. The wiring information
includes wiring diagrams, proper wire and connector
repair procedures, details of wire harness routing and
retention, connector pin-out information and location
views for the various wire harness connectors, splices
and grounds.
(a)If continuity is detected, proceed to step Step 3.
(b) If NO continuity, replace the horn relay.
(3) Remove the airbag trim cover from the steering
wheel and disengage horn connector.
(4) Install horn relay into Integrated Power Mod-
ule (IPM).
(a)
If horn does not sound, replace airbag trim
cover.
(b) If horn sounds, repair grounded X3 circuit
from IPM to clockspring in the steering column.
HORNS WILL NOT SOUND
Check horn fuse#8intheIPM. If fuse is blown,
check for a shorted switch in the airbag module. and
refer to FUSE BLOWN section. If fuse is OK, refer to
FUSE OK section.
FUSE BLOWN
(1) Verify condition of battery terminals and volt-
age, (Refer to 8 - ELECTRICAL/BATTERY SYSTEM
RSHORN8H-3
HORN SYSTEM (Continued)

- DIAGNOSIS AND TESTING). If battery connec-
tions and battery charge is OK proceed to Step 2.
(2) Using a voltmeter, test for battery voltage at
both sides of horn fuse 7. If voltage is OK, on both
sides of fuse, proceed to Fuse OK. If voltage is OK,
on one side of fuse, the fuse is blown, proceed to Step
3.
(3) Using a suitable ammeter in place of the fuse,
test amperage draw of the horn circuit. If amperage
draw is greater than 20 amps without the horn
switch depressed, a grounded circuit exists between
the fuse and the horn relay. Proceed to Step 4. If
amperage draw is greater than 20 amps with the
horn switch depressed, a grounded circuit exists
between the horn relay and the horn. Proceed to step
Step 5.
(4) Remove the horn relay from the IPM. If the
amperage draw drops to 0 amps, the horn switch or
circuit is shorted. If the amperage draw does not
drop to 0 amps, repair short at the IPM.
(5) Disengage a wire connector from one of the
horns. If amperage drops and the connected horn
sounds, replace the faulty horn. If amperage does not
drop with both horns disconnected and the horn
switch depressed, proceed to Step 6.
(6) Using a continuity tester, with the horns dis-
connected test continuity of the X2 cavity of the horn
relay to ground. If continuity is detected, the circuit
is grounded between the Junction Block and the
horns. Locate and repair pinched harness.
FUSE OK
(1) Remove the horn relay from the intelligent
power module.
(2) Using a continuity tester, Depress horn switch
and test continuity from the X3 cavity of the horn
relay to ground.
(a) If continuity is detected, proceed to Step 3.
(b) If NO continuity, proceed to Step 4.
(3) Using a suitable jumper wire, jump across the
fuse F62 cavity and the X2 cavity of the horn relay in
the Junction Block.
(a) If the horn sounds, replace the horn relay.
(b) If the horn does not sound, proceed to Step 4.
(4) Remove airbag trim cover from steering wheel.
Refer to ELECTRICAL, RESTRAINTS.
(5) Test continuity across horn switch connectors
with horn switch depressed.
(a) If continuity is detected, repair open circuit
between the relay and the horn switch.
(b) If NO continuity, replace airbag trim cover.
(6) Install horn relay into intelligent power mod-
ule.
(7) Disengage wire connectors from horns.(8) Using a voltmeter, with the horn switch
depressed test voltage across horn connector termi-
nals of the wire harness (Fig. 1).
(a) If voltage is detected, replace horns.
(b) If NO voltage, proceed to step Step 9.
(9) With the horn switch depressed, test for volt-
age between the X2 circuit and ground.
(a) If voltage OK, repair system ground at right
cowl area.
(b) If NO voltage, repair open X2 circuit between
the relay and the horns.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Hoist and support the front of the vehicle on
safety stands.
(3) From behind the front fascia and forward of
the left front wheel, disconnect the wire connectors
from horn.
(4) Remove the mounting bracket attaching nut
from the bottom of radiator closure panel. Do not
remove the horn from mounting bracket.
(5) Separate the horn(s) from vehicle.
INSTALLATION
(1) Install the horns to the vehicle.
(2) Install the mounting bracket fastener.
(3) Reconnect the wire connectors to the horns.
(4) Lower the vehicle.
(5) Reconnect the battery negative cable.
HORN SWITCH
DESCRIPTION
The horn switch is molded into the airbag trim
cover. The horn switch can not be serviced separately.
For service procedures (Refer to 8 - ELECTRICAL/
RESTRAINTS/AIRBAG COVER - REMOVAL).
Fig. 1 Horn Connector
8H - 4 HORNRS
HORN (Continued)

INSTALLATION - 3.3/3.8L
(1) Install coil over studs on bracket.
(2) Install 2 nuts to the ignition coil studs. Tighten
nuts and bolts.
(3) Connect the electrical connector to the ignition
coil.
(4) Install the ignition cables to the ignition coil.
(5) Reposition the Power steering reservoir. Slide
bracket over the mounting stud (Fig. 11).
(6) Install 2 bolts to the Power steering reservoir
to intake manifold.
(7) Tighten the lower nut to stud on ignition coil
bracket.
(8) Install the throttle and speed control cables to
clip.
(9) Connect the negative battery cable.
KNOCK SENSOR
DESCRIPTION
The knock sensor threads into the cylinder block.
The knock sensor is designed to detect engine vibra-
tion that is caused by detonation.
OPERATION
When the knock sensor detects a knock in one of
the cylinders, it sends an input signal to the PCM. In
response, the PCM retards ignition timing for all cyl-
inders by a scheduled amount.
Knock sensors contain a piezoelectric material
which constantly vibrates and sends an input voltage
(signal) to the PCM while the engine operates. As the
intensity of the crystal's vibration increases, the
knock sensor output voltage also increases.
The voltage signal produced by the knock sensor
increases with the amplitude of vibration. The PCM
receives as an input the knock sensor voltage signal.
If the signal rises above a predetermined level, the
PCM will store that value in memory and retard
ignition timing to reduce engine knock. If the knock
sensor voltage exceeds a preset value, the PCM
retards ignition timing for all cylinders. It is not a
selective cylinder retard.
The PCM ignores knock sensor input during engine
idle conditions. Once the engine speed exceeds a
specified value, knock retard is allowed.
Knock retard uses its own short term and long
term memory program.
Long term memory stores previous detonation
information in its battery-backed RAM. The maxi-
mum authority that long term memory has over tim-
ing retard can be calibrated.
Short term memory is allowed to retard timing up
to a preset amount under all operating conditions (as
long as rpm is above the minimum rpm) except WOT.The PCM, using short term memory, can respond
quickly to retard timing when engine knock is
detected. Short term memory is lost any time the
ignition key is turned off.
NOTE: Over or under tightening affects knock sen-
sor performance, possibly causing improper spark
control.
REMOVAL
REMOVAL - 2.4L
The knock sensor threads into the side of the cyl-
inder block in front of the starter (Fig. 12).
(1) Disconnect electrical connector from knock sen-
sor.
(2) Use a crow foot socket to remove the knock
sensors.
REMOVAL - 3.8L
The knock sensor threads into the side of the cyl-
inder block in the rear.
(1) Disconnect the negative battery cable.
(2) Raise vehicle and support.
(3) On All Wheel Drive vehicles remove the PTU
(Power Transfer Unit), refer to the Transmission sec-
tion for more information.
(4) Disconnect electrical connector from knock sen-
sor.
(5) Use a crow foot socket to remove the knock
sensor.
INSTALLATION
INSTALLATION - 2.4L
The knock sensor threads into the side of the cyl-
inder block in front of the starter (Fig. 12).
(1) Install knock sensor. Tighten knock sensor to
10 N´m (7 ft. lbs.) torque.Over or under tighten-
ing effects knock sensor performance, possibly
causing improper spark control.
(2) Attach electrical connector to knock sensor.
INSTALLATION - 3.8L
The knock sensor threads into the side of the cyl-
inder block in the rear.
(1) Install knock sensor. Tighten knock sensor to
10 N´m (7 ft. lbs.) torque.Over or under tighten-
ing effects knock sensor performance, possibly
causing improper spark control.
(2) Attach electrical connector to knock sensor.
(3) On All Wheel Drive vehicles install the PTU
(Power Transfer Unit) for the rear wheels, refer to
the Transmission section for more information.
8I - 8 IGNITION CONTROLRS
IGNITION COIL (Continued)

REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the three retaining screws.
(3) Disconnect the central wiring harness connec-
tor from the headlamp unit.
(4) Remove the headlamp unit from the vehicle by
rotating the turn signal area out and towards the
center of the vehicle.
INSTALLATION
(1) Connect the wiring harness to the headlamp
unit's central connector.
(2) Place the headlamp unit in the headlamp unit
pocket in front end first by placing the inboard side
behind the fascia. Complete the installation by rotat-
ing the turn signal area of the headlamp into place.
(3) Place headlamp unit into headlamp unit pocket
in front end.
(4) Install the three retaining screws.
(5) Connect the battery negative cable.
(6) Verify vehicle and system operation.
LICENSE LAMP
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove two screws (Fig. 18).
(3) Twist bulb socket and remove (Fig. 19).
(4) Pull bulb from socket.
INSTALLATION
(1) Push bulb into socket.
(2) Install socket into lamp.
(3) Install two screws.
(4) Reconnect the battery negative cable.
MULTI-FUNCTION SWITCH
DESCRIPTION - TURN SIGNAL SYSTEM
The turn signals are actuated with a lever on
Multi-Function Switch, located on the left side of the
steering wheel. The signals are automatically turned
off by a canceling cam (two lobes molded to the clock
spring mechanism). The cam comes in contact with
the cancel actuator on the turn signal (multi-func-
tion) switch assembly. Either cam lobe, pushing on
the cancel actuator, returns the switch to the OFF
position. The multi-function switch is a resistive
MUX switch that feeds inputs to the BCM.
OPERATION - TURN SIGNAL SYSTEM
Lane change signaling is actuated by applying par-
tial turn signal stalk movement toward the direction
desired until the indicator lamps flashes in the
instrument cluster. When the switch stalk is released
the stalk will spring back into the neutral position
turning OFF the turn signal.
With the ignition switch ON and the turn signal
switch stalk actuated left or right, current flows
through the:
²Multi-function switch
²Body Control Module
²Integrated Power Module (IPM)
²Turn indicator lamp
²Front and rear turn signal bulbs.
A chime will sound after the vehicle has traveled a
distance of approximately 1.0 mile and a speed of 15
mph, with the turn signal ON.
Fig. 18 LICENSE PLATE LAMP UNITS
1 - SCREW
2 - LICENSE PLATE LAMP
Fig. 19 LICENSE PLATE LAMP - REMOVE/INSTALL
1 - LICENSE PLATE LAMP UNIT
2 - BULB
RSLAMPS/LIGHTING - EXTERIOR8L-17
HEADLAMP UNIT - EXPORT (Continued)

function currently displayed is a function that can be
reset. The distance to service function can also be
reset using the local reset method, but it will reset
back to the Service Interval distance that is set in
the EVIC programmable features mode. (Refer to 8 -
ELECTRICAL/OVERHEAD CONSOLE/ELEC-
TRONIC VEHICLE INFO CENTER - STANDARD
PROCEDURE).
DIAGNOSIS AND TESTING
ELECTRONIC VEHICLE INFORMATION CENTER
Electronic Vehicle Information Center (EVIC) data
is obtained from the Body Control Module (BCM) on
the Programmable Communications Interface (PCI)
Data Bus circuit. The EVIC will display dashes (- -)
for any of the screens it did not receive the bus mes-
sages. The label corresponding to the missing infor-
mation will be lit. If no EVIC data is displayed,
check the PCI Data Bus circuit communications and
the BCM. If the dimming level is improper check the
PCI Data Bus circuit.
The use of a DRBIIItscan tool and the proper
diagnostic procedures information are recommended
for further testing of the EVIC module and the PCI
data bus circuit. Perform the SELF-DIAGNOSTIC
TEST before replacing the EVIC module (Refer to 8 -
ELECTRICAL/OVERHEAD CONSOLE - DIAGNO-
SIS AND TESTING).
STANDARD PROCEDURE
ELECTRONIC VEHICLE INFORMATION CENTER
PROGRAMMING
EVIC PROGRAMMING MODE
Some vehicles are equipped with a Electronic Vehi-
cle Information Center (EVIC) equipped overhead
console. The Electronic Vehicle Information Center
(EVIC) provides the vehicle operator with a user
interface, which allows the selection of several
optional customer programmable electronic features
to suit individual preferences. The EVIC must be
placed into its programming mode in order to view or
change the programmable features. To enter the
EVIC programming mode and to view or change the
selected programmable features options, proceed as
follows:
(1) Turn the ignition switch to the On position.
(2) Depress and release the Menu push button.
The first item in the programmable features menu
list will appear in the EVIC display.(3) Momentarily depress and release the Menu
push button to step through the programmable fea-
tures list. Each programmable feature and its cur-
rently selected option will appear on the EVIC
display in the sequence shown in the Programmable
Features list that follows.
(4) Momentarily depress and release the Step push
button to step through the available options for the
programmable feature being displayed.
(5) The option that last appears in the display
with a programmable feature before exiting the pro-
gramming mode, becomes the newly selected pro-
grammable feature option.
(6) The EVIC exits the programming mode and
returns to its normal operating mode when the C/T
push button is depressed or when the end of the pro-
grammable features menu list is reached, whichever
occurs first.
PROGRAMMABLE FEATURES
NOTE: Tire pressure monitoring (TPM) system infor-
mation is not covered in this section of the service
manual. Refer to the tires/wheels section of this
manual for detailed tire pressure monitoring system
information.
²LANGUAGE?- The options include English,
Francaise, Deutsch, Italiana, or Espanol. The default
is English. All EVIC display nomenclature, including
the trip computer functions, warning messages and
the programmable features appear in the selected
language.
²DISPLAY U.S. OR METRIC?- The options
include U.S. and M. The default is U.S. This feature
toggles the trip computer temperature, fuel economy
and odometer display readings between U.S. and
metric units of measure. It also changes the odome-
ter display in the instrument cluster.
²SERVICE INTV. =- The options include from
3200 to 12000 kilometers in 800 kilometer incre-
ments (2000 to 7500 miles in 500 mile increments).
The default is 12000 kilometers (7500 miles). The
selected distance becomes the interval at which the
Perform Service warning message will be displayed
by the EVIC. If a new distance is selected, a second
programmable feature appears,RESET SERVICE
DISTANCE?- The options include No and Yes. The
default is Yes. When Yes is selected, the accumulated
distance since the last previous Perform Service
warning message will be reset to zero because the
service interval has been changed. When No is
selected, the distance until the next Perform Service
warning message is reduced by the accumulated dis-
tance since the last previous message.
8M - 8 OVERHEAD CONSOLERS
ELECTRONIC VEHICLE INFO CENTER (Continued)

NOTE: If the EVIC module is being replaced, the tire
pressure monitoring system (if equipped) must be
retrained. (Refer to 22 - TIRES/WHEELS/TIRE PRES-
SURE MONITORING/SENSOR - STANDARD PROCE-
DURE)
INSTALLATION
(1) Position the Electronic Vehicle Information
Center (EVIC) module in the overhead console.
(2) Install the ten screws holding the EVIC module
in the overhead console.
(3) Install the overhead console (Refer to 8 -
ELECTRICAL/OVERHEAD CONSOLE - INSTALLA-
TION).
(4) Connect the battery negative cable.
NOTE: If the EVIC module is being replaced, the tire
pressure monitoring system (if equipped) must be
retrained. (Refer to 22 - TIRES/WHEELS/TIRE PRES-
SURE MONITORING/SENSOR - STANDARD PROCE-
DURE).
NOTE: If a new EVIC module has been installed, the
compass will have to be calibrated and the variance
set. (Refer to 8 - ELECTRICAL/OVERHEAD CON-
SOLE - STANDARD PROCEDURE - COMPASS CAL-
IBRATION).
COMPASS/MINI-TRIP
COMPUTER
DESCRIPTION
The Compass Mini-Trip Computer (CMTC) module
is located in the overhead console. The CMTC con-
sists of a electronic control module with a vacuum
fluorescent display (VFD) and function switches. The
CMTC consists of a electronic module that displays
compass, trip computer, and temperature features.
Actuating the STEP push button will cause the
CMTC to change mode of operation when the ignition
is ON. Example:
²Average miles per gallon (ECO)
²Distance to empty (DTE)
²Instant miles per gallon (ECO)
²Trip odometer (ODO)
²Elapsed time (ET)
²Blank
Actuating the C/T push button will cause the
CMTC to change to the Compass/Temperature dis-
play.
OPERATION
The Compass Mini-Trip Computer (CMTC) module
in the overhead console has buttons used to select
various functions. The CMTC selector buttons will
not operate until the ignition is in the RUN position.
When the ignition switch is first turned to the
RUN position the CMTC display;
²Blanks momentarily
²All segments of the VFD will light for one sec-
ond
²Blanks momentarily
²Returns to the last mode setting selected before
the ignition was last switched OFF.
DIAGNOSIS AND TESTING
COMPASS MINI-TRIP COMPUTER
Any diagnosis of the compass mini-trip com-
puter should begin with the use of the DRB IIIt
diagnostic tool. For information on the use of
the DRB IIIt, refer to the appropriate Diagnos-
tic Procedures information.
Compass Mini-Trip Computer (CMTC) data is
obtained from the Body Control Module (BCM) on
the Programmable Communications Interface (PCI)
Data Bus circuit. The CMTC will display dashes (- -)
for any of the screens it did not receive the bus mes-
sages. The label corresponding to the missing infor-
mation will be lit. If no CMTC data is displayed,
check the PCI Data Bus circuit communications and
the BCM. If the dimming level is improper check the
PCI Data Bus circuit.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove overhead console(Refer to 8 - ELEC-
TRICAL/OVERHEAD CONSOLE - REMOVAL).
(3) Remove the screws holding Compass Mini-Trip
Computer (CMTC) module in the overhead console.
(4) Remove CMTC module from the console assem-
bly.
INSTALLATION
(1) Position the compass mini-trip computer
(CMTC) module in the overhead console.
(2) Install the ten screws holding the CMTC mod-
ule in the overhead console.
(3) Install the overhead console (Refer to 8 -
ELECTRICAL/OVERHEAD CONSOLE - INSTALLA-
TION).
(4) Connect the battery negative cable.
8M - 10 OVERHEAD CONSOLERS
ELECTRONIC VEHICLE INFO CENTER (Continued)

SEAT BELT & RETRACTOR - SECOND ROW -
RIGHT OUTBOARD
REMOVAL.............................40
INSTALLATION.........................40
SEAT BELT & RETRACTOR - SECOND ROW -
RIGHT OUTBOARD WITH REAR HVAC - LWB
REMOVAL.............................41
INSTALLATION.........................41
SEAT BELT & RETRACTOR - SECOND ROW -
LEFT OUTBOARD
REMOVAL.............................42INSTALLATION.........................42
SEAT BELT TENSIONER
DESCRIPTION.........................43
OPERATION...........................43
SEAT WEIGHT BLADDER & PRESSURE
SENSOR
DESCRIPTION.........................43
OPERATION...........................44
RESTRAINTS
DESCRIPTION
This vehicle is equipped with a Frontal Impact Air-
bag System, which utilizes the driver/passenger air-
bags, two front impact sensors, and seat belt
tensioners located in the front seat belt buckles. This
system is designed to protect occupants in the event
of a front impact collision. These airbags are all ser-
viceable parts. The tensioners are integral to the
front seat belt buckles. If these pyrotechnics are
deployed or defective, they must be replaced.
Vehicles equipped with the Side Impact Airbag
System utilize a curtain airbag, three side impact
sensors, and the Occupant Restraint Controller
(ORC) to determine if the airbag should be deployed.
Following a side impact event where the side airbag
was deployed, the headliner as well as the curtain
airbag must be replaced.
The occupant restraints include both active and
passive types. Active restraints are those which
require the vehicle occupants to take some action to
employ, such as fastening a seat belt; while passive
restraints require no action by the vehicle occupants
to be employed.
ACTIVE RESTRAINTS
The active restraints include:
²Front Seat Belts- Both front seating positions
are equipped with three-point seat belt systems
employing a lower B-pillar mounted inertia latch-
type retractor, height-adjustable upper B-pillar
mounted turning loops, a fixed lower seat belt anchor
secured to the lower B-pillar, and a traveling end-re-
lease buckle secured to the inboard side of the seat
cushion frame. The driver side front seat belt buckle
includes an integral Hall-effect seat belt switch that
detects whether the driver side front seat belt has
been fastened.²Rear Seat Belts- Both outboard rear second
and third seating positions are equipped with three-
point seat belt systems. The outboard seating posi-
tion belts employ a lower C or D-pillar mounted
inertia latch-type retractor, a fixed position upper C
or D-pillar mounted turning loop, and a fixed lower
seat belt anchor secured to the inboard side of the
seat cushion frame.
²Child Restraint Anchors- Also equipped in
this vehicle are two, fixed-position, child seat upper
tether anchors located on the lower seat cushion, in
the rear of the lower seat cushion. There is one
anchor integral to the back of the third row seat back
panel, one on each seat back panel. Two lower second
row anchors are also provided for each rear outboard
seating position. The lower anchors are integral to
the seat cushion frame and are accessed from the
front of the second row seat where the seat back
meets the seat cushion.
PASSIVE RESTRAINTS
The passive restraints available for this model
include the following:
²Dual Front Airbags- Multistage driver. front
passenger, and driver knee blocker airbags are avail-
able for this model. This airbag system is a passive,
inflatable, Supplemental Restraint System (SRS) and
vehicles with this equipment can be readily identified
by the ªSRS - AIRBAGº logo molded into the driver
airbag trim cover in the center of the steering wheel
and also into the passenger airbag door on the
instrument panel above the glove box. Vehicles with
the airbag system can also be identified by the airbag
indicator, which will illuminate in the instrument
cluster for about seven seconds as a bulb test each
time the ignition switch is turned to the ON position.
A pyrotechnic-type seat belt tensioner is integral to
the driver and passenger front seat belt buckle of all
models equipped with dual front airbags.
8O - 2 RESTRAINTSRS

²Occupant Classification System- These
vehicles also include an Occupant Classification Sys-
tem (OCS) with components that are located on or in
the passenger front seat cushion. These components
include an Occupant Classification Module (OCM)
and a seat weight bladder and pressure sensor
assembly. In addition, this system includes a belt
tension sensor integral to the lower anchor of the
passenger side front seat belt. Vehicles equipped with
the OCS can be readily identified by a Passenger Air-
bag Disabled (PAD) indicator (Fig. 1) located in the
center stack on the instrument panel above HVAC
control head and radio.
²Curtain Airbags- Curtain airbags are avail-
able for this model when it is also equipped with
dual front airbags. This airbag system is a passive,
inflatable, Supplemental Restraint System (SRS) and
vehicles with this equipment can be readily identified
by a molded identification trim button with the ªSRS
- AIRBAGº logo (Fig. 2) located on the headliner
above each B-pillar.
This vehicle is equipped with a Frontal Impact Air-
bag System, which utilizes the driver/passenger air-
bags, driver knee blocker airbag, and seat belt
tensioners. This system is designed to protect occu-
pants in the event of a front impact collision. These
airbags and seat belt tensioners are all serviceable
parts. If these pyrotechnics are deployed or defective,
they must be replaced, as well as the OccupantRestraint Controller (ORC) must be diagnosed follow-
ing procedures outlined in the diagnostic information.
The Driver and Passenger Airbag System was
designed to reduce the likelihood of injury or death
in frontal collisions. Each separate system is supple-
mental (Fig. 2) orPassiveto the primary restraint
device, which are the seat belts.
²Airbag Indicator- The airbag indicator is inte-
gral to the Instrument Cluster, which is located on
the instrument panel in front of the driver.
²Belt Tension Sensor- Vehicles equipped with
the Occupant Classification System (OCS) include a
belt tension sensor. This sensor is integral to the pas-
senger side front seat belt lower anchor which is
secured to the floor, out board and rear of the front
passenger seat. -.....concealed beneath an access cover
on the seat belt assembly.
²Clockspring- The clockspring is located near
the top of the steering column, directly beneath the
steering wheel (Fig. 3).
²Curtain Airbag- A side curtain airbag is
located on each inside roof side rail above the head-
liner, and extends from the A-pillar to just beyond
the D-pillar.
²Driver Airbag- The driver airbag is located in
the center of the steering wheel, beneath the driver
airbag trim cover (Fig. 3).
²Front Impact Sensor- Two front impact sen-
sors are used on vehicles equipped with dual front
airbags, one left side and one right side. The sensors
are located on the rail tips, rearward of the bumper
attachments.
²Knee Blocker Airbag- The driver knee blocker
airbag is secured to the instrument panel behind the
steering column opening cover (Fig. 3).
Fig. 1 PAD INDICATOR
Fig. 2 SRS LOGO
Fig. 3 AIRBAG COMPONENT LOCATION -
INSTRUMENT PANEL
1 - DRIVER AIRBAG
2 - PASSENGER AIRBAG DISABLED (PAD) INDICATOR
3 - PASSENGER AIRBAG
4 - OCCUPANT RESTRAINT CONTROLLER (ORC)
5 - KNEE BLOCKER AIRBAG
RSRESTRAINTS8O-3
RESTRAINTS (Continued)

²Occupant Classification Module- Vehicles
equipped with the Occupant Classification System
(OCS) include an Occupant Classification Module
(OCM) which is secured to a stamped steel mounting
bracket on the underside of the passenger side front
seat cushion frame.
²Occupant Restraint Controller- The Occu-
pant Restraint Controller (ORC) is also sometimes
referred to as the Airbag Control Module (ACM). The
ORC is located on a mount on the floor transmission
tunnel just underneath the instrument panel center
stack (Fig. 3).
²Passenger Airbag- The passenger airbag is
located on the instrument panel, beneath the instru-
ment panel top pad and above the glove box on the
passenger side of the vehicle (Fig. 3).
²Passenger Airbag Disabled (PAD) Indicator
- Vehicles equipped with the Occupant Classification
System (OCS) include a passenger airbag disabled
(PAD) indicator which is located in the instrument
panel center stack (Fig. 3).
²Passenger Knee Blocker- The passenger knee
blocker is a structural reinforcement that is integral
to and concealed within the glove box door (Fig. 3).
²Seat Belt Tensioner- A seat belt tensioner is
integral to both front seat belt buckles. The seat belt
buckles are secured to the inner seat frame sides,
beneath a cushion trim panel.
²Seat Weight Bladder and Pressure Sensor
Assembly- Vehicles equipped with the Occupant
Classification System (OCS) include a seat weight
bladder that is sandwiched between an insulator pad
on the top of the passenger side front seat pan and
the seat cushion foam padding. A short hose connects
the bladder to a pressure sensor which is secured to
the Occupant Classification Module (OCM) mounting
bracket on the underside of the passenger side front
seat cushion frame.
²Side Impact Sensors- Six side impact sensors
are used on vehicles equipped with the curtain air-
bags, three left side and three right side. The first
row side impact sensor is located in the B-pillar, just
above the front seat belt retractor. The second row
side impact sensor is located in the sliding side door
track opening, just in front of the C-pillar. The third
row side impact sensor is located behind the quarter
trim panel, above the rear tire wheel well, between
the C and D-pillars.
The ORC, the OCM, and the cluster each contain a
microprocessor and programming that allow them to
communicate with each other using the Programma-
ble Communications Interface (PCI) data bus net-
work. This method of communication is used by the
ORC for control of the airbag indicators.OPERATION
ACTIVE RESTRAINTS
The primary passenger restraints in this or any
other vehicle are the seat belts and child restraint
anchors. Seat belts and child restraint anchors are
referred to as an active restraint because the vehicle
occupants are required to physically fasten and prop-
erly adjust these restraints in order to benefit from
them. See the owner's manual in the vehicle glove
box for more information on the features, use and
operation of all of the active restraints.
PASSIVE RESTRAINTS
The passive restraints are referred to as a supple-
mental restraint system because they were designed
and are intended to enhance the protection for the
occupants of the vehicleONLYwhen used in con-
junction with the seat belts. They are referred to as
passive restraints because the vehicle occupants are
not required to do anything to make them operate;
however, the vehicle occupants must be wearing their
seat belts in order to obtain the maximum safety
benefit from the supplemental restraint system.
The supplemental restraint system electrical cir-
cuits are continuously monitored and controlled by a
microprocessor and software contained within the
Occupant Restraint Controller (ORC). An airbag indi-
cator in the ElectroMechanical Instrument Cluster
(EMIC) illuminates for about seven seconds as a bulb
test each time the ignition switch is turned to the
ON or START positions. Following the bulb test, the
airbag indicator is turned ON or OFF by the ORC to
indicate the status of the supplemental restraint sys-
tem. If the airbag indicator comes ON at any time
other than during the bulb test, it indicates that
there is a problem in the supplemental restraint sys-
tem electrical circuits. Such a problem may cause air-
bags not to deploy when required, or to deploy when
not required.
Deployment of the supplemental restraints
depends upon the angle and severity of an impact.
Deployment is not based upon vehicle speed; rather,
deployment is based upon the rate of deceleration as
measured by the forces of gravity (G force) upon the
impact sensors. When an impact is severe enough,
the microprocessor in the ORC signals the inflator of
the appropriate airbag units to deploy their airbag
cushions. The front seat belt tensioners are provided
with a deployment signal by the ORC in conjunction
with the front airbags. During a frontal vehicle
impact, the knee blockers work in concert with prop-
erly fastened and adjusted seat belts to restrain both
the driver and the front seat passenger in the proper
position for an airbag deployment. The knee blockers
also absorb and distribute the crash energy from the
8O - 4 RESTRAINTSRS
RESTRAINTS (Continued)

UNDEPLOYED AIRBAG
WARNING: The airbags must be stored in its origi-
nal special container until used for service. At no
time should a source of electricity be permitted
near the inflator on the back of an airbag. When
carrying or handling an undeployed airbag, the trim
side of the airbag should be pointing toward the
body to minimize the possibility of personal injury
or death if accidental deployment occurs. Do not
place undeployed airbag face down on a solid sur-
face, the airbag will propel into the air if accidental
deployment occurs.
STANDARD PROCEDURE - SERVICE AFTER AN
AIRBAG DEPLOYMENT
DRIVER AIRBAG
After a Driver Airbag has been deployed due to a
collision, the followingMUSTbe replaced:
²Driver Airbag
²Clockspring Assembly
²Steering Wheel
²Complete Steering Column Assembly w/Lower
Steering Column Coupler
All other airbag and vehicle components should be
closely inspected following any airbag deployment,
and should be replaced when visible damage is
incurred.
WARNING: Do not connect the battery negative
cable (Refer to 8 - ELECTRICAL/RESTRAINTS -
DIAGNOSIS AND TESTING - AIRBAG SYSTEM). Per-
sonal injury or death may result if the system test
is not performed first.
PASSENGER AIRBAG
After a Passenger Airbag has been deployed due to
a collision. the followingMUSTbe replaced:
²Passenger Airbag
²Instrument Panel and Pad Assembly
All other airbag and vehicle components should be
closely inspected following any airbag deployment,
and should be replaced when visible damage is
incurred.
WARNING: Do not connect the battery negative
cable (Refer to 8 - ELECTRICAL/RESTRAINTS -
DIAGNOSIS AND TESTING - AIRBAG SYSTEM). Per-
sonal injury or death may result if the system test
is not performed first.
KNEE BLOCKER AIRBAG
After a Knee Blocker Airbag has been deployed due
to a collision. the followingMUSTbe replaced:
²Knee Blocker Airbag
²Instrument Panel and Pad Assembly
All other airbag and vehicle components should be
closely inspected following any airbag deployment,
and should be replaced when visible damage is
incurred.
WARNING: Do not connect the battery negative
cable (Refer to 8 - ELECTRICAL/RESTRAINTS -
DIAGNOSIS AND TESTING - AIRBAG SYSTEM). Per-
sonal injury or death may result if the system test
is not performed first.
CURTAIN AIRBAG
After a Curtain Airbag has been deployed due to a
collision. the followingMUSTbe replaced:
²Curtain Airbag Assembly
²Headliner
²A, B, and C-Pillar Trim on deployed side.
All other airbag and vehicle components should be
closely inspected following any airbag deployment,
and should be replaced when visible damage is
incurred.
WARNING: Do not connect the battery negative
cable (Refer to 8 - ELECTRICAL/RESTRAINTS -
DIAGNOSIS AND TESTING - AIRBAG SYSTEM). Per-
sonal injury or death may result if the system test
is not performed first.
OCCUPANT CLASSIFICATION SYSTEM (OCS)
After an impact event, either front, rear, or side,
the OCS system components need to be inspected
and replaced if found to be damaged.
This includes:
²Belt Tension Sensor
²Occupant Classification Module (OCM)
²Passenger Airbag ON/Off Indicator
²Seat Weight Bladder and Sensor
RSRESTRAINTS8O-7
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