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Chrysler RG Voyager. Manual - part 760

(8) Install quarter trim panel screws.
(9) Install quarter trim bolster.
(10) Connect speaker connector. The left side has

the speaker mounted in the D-pillar trim cover and
the right side will have the speaker mounted in the
rear of the quarter trim panel, but the connector is
accessible from the rear after the D-pillar trim is
removed.

(11) Install D-pillar trim cover.
(12) Install second seat belt lower anchor bolt.

Torque bolt to 39 N·m (29 ft. lbs.).

(13) Install second seat belt upper turning loop

anchor bolt. Torque bolt to 39 N·m (29 ft. lbs.).

(14) Install upper liftgate trim.
(15) Install liftgate sill plate.
(16) Install first row seat belt upper turning loop

anchor bolt. Torque bolt to 39 N·m (29 ft. lbs.).

(17) Install first row seat belt lower anchor bolt.

Torque bolt to 39 N·m (29 ft. lbs.).

(18) Install first and second row seats.

SEAT BELT & RETRACTOR -
SECOND ROW - LEFT
OUTBOARD

REMOVAL

(1) Remove first and second row seats.
(2) Remove first row seat belt lower anchor bolt.
(3) Remove first row seat belt upper anchor bolt.
(4) Remove liftgate sill plate.
(5) Remove upper liftgate trim.
(6) Remove second seat belt lower anchor bolt.
(7) Remove second seat belt upper anchor bolt.
(8) Remove D-pillar trim cover.
(9) Disconnect speaker connector. The left side has

(10) Remove quarter trim bolster.
(11) Remove quarter trim panel screws.
(12) Remove quarter trim panel.
(13) Remove retractor retaining bolt.
(14) Remove second row seat belt and retractor

from vehicle.

INSTALLATION

(1) Install second row seat belt and retractor.

Torque bolt to 39 N·m (29 ft. lbs.).

(2) Install quarter trim panel.
(3) Install quarter trim panel screws.
(4) Install quarter trim bolster.

(5) Connect speaker connector. The left side has

(6) Install D-pillar trim cover.
(7) Install second seat belt lower anchor bolt.

Torque bolt to 39 N·m (29 ft. lbs.).

(8) Install second seat belt upper turning loop

anchor bolt. Torque bolt to 39 N·m (29 ft. lbs.).

(9) Install upper liftgate trim.
(10) Install liftgate sill plate.
(11) Install first row seat belt upper turning loop

anchor bolt. Torque bolt to 39 N·m (29 ft. lbs.).

(12) Install first row seat belt lower anchor bolt.

Torque bolt to 39 N·m (29 ft. lbs.).

(13) Install first and second row seats.

SEAT BELT TENSIONER

DESCRIPTION

The seat belt system incorporates Seat Belt Ten-

sioners. The tensioner is designed to hold the occu-
pant in their respective seat by retracting the seat
belt up to four inches. They are integral to the front
seat belt buckles and cannot be serviced. If found
defective they must be replaced. After an airbag
deployment, the tensioner must be replaced.

Seat Belt Tensioners supplement the dual front air-

bag system. The seat belt tensioners are integral to
the front seat belt buckles, which are secured to the
seat cushion frame on the inboard side. The seat belt
tensioners are controlled by the Occupant Restraint
Controller (ORC) and are connected to the vehicle
electrical system through the body wire harness.

The seat belt tensioners cannot be repaired and, if

faulty or damaged, the entire front seat belt buckle
must be replaced. The seat belt tensioners are not
intended for reuse and must be replaced following
any front airbag deployment.

OPERATION

WARNING: When the front airbag is deployed, the
tensioner will have deployed also and should be
replaced. Failure to do so could result in occupant
personal injury or death.

The seat belt tensioners are deployed by a signal

generated by the Occupant Restraint Controller
(ORC) through the driver or passenger seat belt ten-
sioner line 1 and line 2 (or squib) circuits. When the
ORC sends the proper electrical signal to the tension-
ers, the electrical energy generates enough heat to
initiate a small pyrotechnic gas generator.

RESTRAINTS

8O - 41

SEAT BELT & RETRACTOR - SECOND ROW - RIGHT OUTBOARD WITH REAR HVAC -
LWB (Continued) (Continued)

Removing excess slack from the front seat belts not

only keeps the occupants properly positioned for an
airbag deployment following a frontal impact of the
vehicle, but also helps to reduce injuries that the
occupants of the front seat might experience in these
situations as a result of a harmful contact with the
steering wheel, steering column, instrument panel
and/or windshield.

The ORC monitors the condition of the seat belt

tensioners through circuit resistance, and will illumi-
nate the airbag indicator in the ElectroMechanical
Instrument Cluster (EMIC) and store a Diagnostic
Trouble Code (DTC) for any fault that is detected.
For proper diagnosis of the seat belt tensioners, use a
scan tool and the appropriate diagnostic information.

SEAT WEIGHT BLADDER &
PRESSURE SENSOR

DESCRIPTION

Vehicles equipped with the Occupant Classification

System (OCS) have a seat weight bladder and pres-
sure sensor unit (Fig. 54) that is integral to the pas-
senger front seat cushion. The bladder is sandwiched
between the seat cushion pan and seat cushion foam.

The bladder consists of two rectangular sheets of

an elastomeric material and a molded plastic elbow
fitting. The two sheets of material are sealed
together around their perimeter and heat staked to
each other at numerous regular points within their

field. The elbow fitting is sealed to a small round
hole in the lower surface of the bladder and is
pointed downward where it passes through a clear-
ance hole in the insulator pad and extends to just
below the seat cushion. The bladder is then filled
with a silicone fluid to become a pliable, quilted
membrane.

Under the seat cushion a short tube is securely

clamped at one end to the bladder nipple, and at the
other end to a nipple on the electronic pressure sen-
sor. The sensor housing features an integral mount
that snaps over a tab integral to the stamped steel
Occupant Classification Module (OCM) mounting
bracket welded to the underside of the passenger
front seat cushion frame.

The seat weight bladder and pressure sensor can-

not be adjusted or repaired. The components of the
passenger front seat cushion of a vehicle equipped
with the OCS including the cushion frame, seat
weight bladder and pressure sensor, seat cushion
foam, wire harness and the OCM are serviced only as
a factory-calibrated, assembled and tamper-evident
unit. Only the OCM and the seat cushion trim are
available for separate service replacement. Once a
service replacement package has been installed in a
vehicle, the OCM can thereafter be serviced only by
replacing the entire passenger front seat cushion unit
with another complete service replacement package.

OPERATION

The seat weight bladder and pressure sensor unit

is designed to sense the relative weight of a load
applied to the passenger front seat cushion, which
provides a logic input to the microprocessor of the
Occupant Classification Module (OCM). When a load
is applied to the seat cushion, fluid within the blad-
der becomes pressurized. These changes in bladder
fluid pressure are measured by the pressure sensor
under the seat cushion through the bladder tube. As
the pressure within the bladder changes, the cir-
cuitry of the pressure sensor changes the output volt-
age of the sensor.

The pressure sensor receives a nominal five volts

and a ground through hard wired circuits from the
OCM. The OCM then monitors the pressure sensor
output voltage on the Programmable Communication
Interface (PCI) data bus circuit.

To properly diagnose the seat weight bladder and

pressure sensor, its communication with/between the
OCM, and all other components within the OCS, use
a

scan

tool

and

the

appropriate

diagnostic

information.

Fig. 54 SEAT WEIGHT BLADDER AND PRESSURE

SENSOR - TYPICAL

1 - FASTENER (2)
2 - BLADDER
3 - PAD
4 - TUBE
5 - PRESSURE SENSOR

8O - 42

RESTRAINTS

SEAT BELT TENSIONER (Continued)

SPEED CONTROL

TABLE OF CONTENTS

page

SPEED CONTROL

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . . 1

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 1

OPERATION - INTERACTIVE SPEED

CONTROL (4 Speed EATX Only) . . . . . . . . . . . 2

DIAGNOSIS AND TESTING - ROAD TEST

. . . . . 3

SPECIFICATIONS - TORQUE

. . . . . . . . . . . . . . . 3

CABLE

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . . 4

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 4

SERVO

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . . 4

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 4

SWITCH

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . . 5

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 6

VACUUM RESERVOIR

DESCRIPTION

. . . . . . . . . . . . . . . . . . . . . . . . . . 6

OPERATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

REMOVAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . 6

SPEED CONTROL

DESCRIPTION

The speed control system is electronically con-

trolled and vacuum operated. The electronic control
is integrated into the Powertrain Control Module.
The controls are located on the steering wheel. The
ON/OFF, and SET buttons are located on the left side
of the airbag module. The RESUME/ACCEL, CAN-
CEL and COAST buttons are located on the right
side of the airbag module (Fig. 1).

The system is designed to operate at speeds above

30 mph (48 km/h).

WARNING: THE USE OF SPEED CONTROL IS NOT
RECOMMENDED WHEN DRIVING CONDITIONS DO
NOT PERMIT MAINTAINING A CONSTANT SPEED,
SUCH AS IN HEAVY TRAFFIC OR ON ROADS THAT
ARE WINDING, ICY, SNOW COVERED, OR SLIP-
PERY.

OPERATION

When speed control is activated by depressing the

ON switch, the PCM allows a set speed to be stored
in RAM for speed control. To store a set speed,
depress and release the SET switch while the vehicle
is moving at a speed between 25 and 85 mph. In
order for the speed control to engage, the brakes can-
not be applied, nor can the gear selector be indicat-
ing the transmission is in Park or Neutral (ATX) or
1st/2nd gear (MTX). The speed control can be disen-
gaged manually by:

• Stepping on the brake pedal

• Depressing the OFF switch

• Depressing the CANCEL switch.

• Depressing the clutch pedal

• Operating in 1st or 2nd gear (autostick, if

equipped)

Fig. 1 SPEED CONTROL SWITCHES - Typical

SPEED CONTROL

8P - 1

NOTE: Turning the system off by depressing the
OFF switch or turning off the ignition switch will
erase the set speed stored in the PCM.

For added safety, the speed control system is pro-

grammed to disengage for any of the following condi-
tions:

• An indication of Park or Neutral

• A rapid increase rpm (indicates that the clutch

has been disengaged)

• Excessive engine rpm (indicates that the trans-

mission may be in a low gear)

• The speed signal increases at a rate of 10 mph

per second (indicates that the co-efficient of friction
between the road surface and tires is extremely low)

• The speed signal decreases at a rate of 10 mph

per second (indicates that the vehicle may have
decelerated at an extremely high rate)

• If the actual speed is greater than 20 mph over

the set speed.

• Autostick shifts into 1st or 2nd gear (autostick,

if equipped)

Once the speed control has been disengaged,

depressing the RESUME switch when speed is
greater than 20 mph allows the vehicle to resume
control to the target speed that was stored in the
PCM.

While the speed control is engaged, the driver can

increase the vehicle speed by depressing the ACCEL
switch. The new target speed is stored in the PCM
when the ACCEL switch is released. The PCM also
has

9tap-up9 feature in which target speed

increases by 2 mph for each momentary switch acti-
vation of the ACCEL switch. The PCM also provides
a means to decelerate to a new lower target speed
without disengaging speed control. Depress and hold
the COAST switch until the desired speed is reached,
then release the switch.

The PCM also has a “Tap Down” feature in which

target speed decreases at 1 mph for each momentary
switch activation of the coast switch.

OPERATION - INTERACTIVE SPEED CONTROL
(4 Speed EATX Only)

Interactive means that communication between the

PCM and the TCM is taking place, this communica-
tion is internal to the PCM on NGC vehicles. Inter-
active speed control avoids unnecessary shifting for
smoother, quieter operation and when downshifts are
required, makes the shifts smoother.

CLIMBING A GRADE

DESCRIPTION

When climbing a grade the interactive speed con-

trol tries to maintain the set speed by increasing the

throttle opening, while inhibiting/delaying down-
shifts.

OPERATION

If opening the throttle alone cannot maintain the

set speed and the vehicle speed drops more than
three mph below the set speed, the transmission will
downshift to third gear. If the vehicle continues to
lose speed, by more than 6 mph, the transmission
will downshift again to maintain the set speed. After
the vehicle encounters a less-steep grade, or has
crested the grade (reduced the load on the power-
train) and can maintain the set speed at a reduced
throttle position, the transmission will upshift, as
appropriate, until the set speed can be maintained in
Overdrive.

GRADE HUNTING

DESCRIPTION

All vehicles equipped with a four speed automatic

transmission have a grade hunting feature for the
2nd to 3rd gear upshift and the 3rd to Overdrive
upshift.

OPERATION

The PCM on NGC vehicles identifies the power-

train loading conditions and selects the proper gear
to maintain the current vehicle speed. Under moder-
ate loading conditions the transaxle will stay in 3rd
gear until the top of the grade is reached or the pow-
ertrain loading is reduced.

If powertrain loading is severe, the transaxle may

shift into 2nd gear and remain there until power-
train loading is reduced, then a 2nd to 3rd gear
upshift will be scheduled. Grade hunting features
always operate regardless of whether or not the
interactive speed control is engaged. If the interac-
tive speed control is not engaged and power-
train loading is not reduced, the driver may
have to completely lift off of the throttle before
an upshift will occur. If the driver does lift off the
throttle to induce an upshift under these conditions,
vehicle speed will reduce and the Overdrive to 3rd
and 3rd to 2nd gear downshifts will reoccur when the
throttle is reapplied. If grade hunting is repeatedly
induced by the driver, transaxle damage may result.

AUTOMATIC SPEED CONTROL OVERSPEED
REDUCTION

DESCRIPTION

Transmission control software includes an auto-

matic speed control overspeed reduction feature. This
maintains vehicle speed at the selected set point
when descending a grade.

8P - 2

SPEED CONTROL

SPEED CONTROL (Continued)

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