seat adjustment CHRYSLER CARAVAN 2003 User Guide

PRELOAD ADJUSTMENT W/O SHIM
(1) Remove the bearing cup from the differential
bearing retainer using Miller special Tool 6062A.
(2) Remove existing shim from under bearing cup.
(3) Reinstall the bearing cup into the retainer
using Miller Special Tool 6061, and C-4171.
NOTE: Oil baffle is not required when making the
shim calculation.
(4) Install the bearing retainer into the case.
Torque bolts to 28 N´m (250 in. lbs.).
(5) Position the transaxle assembly vertically on
the support stand and install Miller Special Tool
L-4436-A into the bearing retainer.
(6) Rotate the differential at least one full revolu-
tion to ensure the tapered roller bearings are fully
seated.
(7) Attach a dial indicator to the case and zero the
dial. Place the tip on the end of Special Tool
L-4436-A.
(8) Place a large screwdriver to each side of the
ring gear and lift. Check the dial indicator for the
amount of end play.
CAUTION: Do not damage the transaxle case and/or
differential retainer sealing surface.
(9) Using the end play measurement that was
determined, add 0.18mm (0.007 inch). This should
give you between 5-18 inch pounds of bearing pre-
load. Refer to the Differential Bearing Shim Chart to
determine which shim to use.
(10) Remove the differential bearing retainer.
Remove the bearing cup.
(11) Install the oil baffle. Install the proper shim
combination under the bearing cup.
(12) Install the differential bearing retainer. Seal
the retainer to the housing with MopartSilicone
Rubber Adhesive Sealant. Torque bolts to 28 N´m
(250 in. lbs.).
(13) Using Miller Special Tool L-4436-A and an
inch-pound torque wrench, check the turning torque
of the differential (Fig. 208). The turning torque
should be between 5-18 inch-pounds.
NOTE: If turning torque is too high install a 0.05mm
(0.002 inch) thicker shim. If the turning torque is too
low, install a 0.05mm (0.002 inch) thinner shim.
Repeat until 5-18 inch-pounds of turning torque is
obtained.
FLUID
STANDARD PROCEDURE
FLUID LEVEL AND CONDITION CHECK
NOTE: Only transmission fluid of the type labeled
Mopar ATF+4 (Automatic Transmission Fluid)
should be used in this transaxle.
FLUID LEVEL CHECK
The transmission sump has a fluid level indicator
(dipstick) to check oil similar to most automatic
transmissions. It is located on the left side of the
engine. Be sure to wipe all dirt from dipstick handle
before removing.
The torque converter fills in both the P Park and N
Neutral positions. Place the selector lever in P Park
to be sure that the fluid level check is accurate.The
engine should be running at idle speed for at
least one minute, with the vehicle on level
ground.At normal operating temperature 82É C
(180É F), the fluid level is correct if it is in the HOT
region on the oil level indicator (Fig. 209). The fluid
level should be within the COLD region of the dip-
stick at 27É C (80É F) fluid temperature.
FLUID LEVEL CHECK USING DRB
NOTE: Engine and Transaxle should be at normal
operating temperature before performing this proce-
dure.
(1) Start engine and apply parking brake.
(2) Hook up DRB scan tool and select transmis-
sion.
Fig. 209 Fluid Level Indicator
1 - FLUID LEVEL INDICATOR
RS41TE AUTOMATIC TRANSAXLE21 - 201
FINAL DRIVE (Continued)
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(26) Zero dial indicator and apply 30 psi (206 kPa)
air pressure to the overdrive clutch hose on Tool
8391. Measure and record OD clutch pack measure-
ment in four (4) places, 90É apart.
(27) Take average of four measurements and com-
pare with OD clutch pack clearance specification.
The overdrive (OD) clutch pack clearance is
1.07-3.25 mm (0.042-0.128 in.).
If not within specifications, the clutch is not
assembled properly. There is no adjustment for the
OD clutch clearance.
(28) Install reverse clutch pack (two frictions/one
steel) (Fig. 270).(29) Install reverse clutch reaction plate with the
flat side down towards reverse clutch (Fig. 271).
(30) Tap reaction plate down to allow installation
of the reverse clutch snap ring. Install reverse clutch
snap ring (Fig. 272) (Fig. 273).
(31) Pry up reverse reaction plate to seat against
snap ring (Fig. 274).
(32) Set up a dial indicator on the reverse clutch
pack as shown in (Fig. 275).
Fig. 269 Measure OD Clutch Pack Clearance
1 - DIAL INDICATOR
2 - OD/REVERSE REACTION PLATE
Fig. 270 Install Reverse Clutch Pack
1 - REVERSE CLUTCH PLATE
2 - REVERSE CLUTCH DISCS
Fig. 271 Install Reaction Plate
1 - REVERSE CLUTCH REACTION PLATE (FLAT SIDE DOWN)
Fig. 272 Install Reverse Clutch Snap Ring
1 - REVERSE CLUTCH SNAP RING (SELECT)
2 - SCREWDRIVER
3 - REVERSE CLUTCH REACTION PLATE
21 - 226 41TE AUTOMATIC TRANSAXLERS
INPUT CLUTCH ASSEMBLY (Continued)
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SEATS
TABLE OF CONTENTS
page page
CHILD SEAT MODULE, BENCH SEAT
REMOVAL.............................86
INSTALLATION
INSTALLATION.......................87
SYNCHRONIZING CABLE ADJUSTMENT . . . 87
QUAD CHILD SEAT
REMOVAL.............................88
INSTALLATION.........................88
HEADREST
REMOVAL.............................88
INSTALLATION.........................88
HEADREST SLEEVE
REMOVAL.............................89
INSTALLATION.........................89
RECLINER HANDLE
REMOVAL.............................89
INSTALLATION.........................89
ARMREST
REMOVAL.............................90
INSTALLATION.........................90
FRONT SEAT
REMOVAL.............................90
INSTALLATION.........................90
FRONT SEATBACK
REMOVAL.............................91
INSTALLATION.........................91
FRONT SEATBACK ASSIST STRAP
REMOVAL.............................91
INSTALLATION.........................91
FRONT SEATBACK PANEL
REMOVAL.............................91
INSTALLATION.........................92
FRONT SEATBACK COVER
REMOVAL.............................92
INSTALLATION.........................92
FRONT/QUAD SEAT CUSHION
REMOVAL.............................92
INSTALLATION.........................92
FRONT SEAT CUSHION SIDE COVER
REMOVAL.............................93
INSTALLATION.........................93
FRONT SEAT RISER - MANUAL TRACK
REMOVAL.............................93
INSTALLATION.........................93
FRONT SEAT TRACK POWER ADJUSTER
REMOVAL.............................94
INSTALLATION.........................94
FRONT SEAT TRACK MANUAL ADJUSTER
REMOVAL.............................94INSTALLATION.........................94
FRONT SEAT TRACK - REAR COVER
REMOVAL.............................95
INSTALLATION.........................95
QUAD BUCKET SEAT SIDE SHIELD/CUP
HOLDER
REMOVAL.............................95
INSTALLATION.........................95
QUAD BUCKET SEAT SIDE SHIELD - NO CUP
HOLDER
REMOVAL.............................96
INSTALLATION.........................96
QUAD BUCKET SEAT RISER
REMOVAL.............................96
INSTALLATION.........................96
BUCKET SEAT BACK - QUAD BUCKET
REMOVAL.............................97
INSTALLATION.........................97
BENCH SEATBACK PANEL
REMOVAL.............................98
INSTALLATION.........................98
SEAT CUSHION COVER - QUAD BUCKET,
50/50 SPLIT, BENCH
REMOVAL.............................98
INSTALLATION.........................99
BENCH SEAT RISER - 50/50 SPLIT
REMOVAL.............................99
INSTALLATION.........................99
BENCH SEAT RISER - SECOND ROW
REMOVAL.............................99
INSTALLATION........................100
BENCH SEAT RISER - THIRD ROW
REMOVAL............................100
INSTALLATION........................100
SEAT BACK HINGE COVERS - QUAD BUCKET,
50/50 SPLIT, BENCH
REMOVAL............................100
INSTALLATION........................100
BENCH SEAT BACK HINGE
REMOVAL............................100
INSTALLATION
INSTALLATION......................100
SYNCHRONIZING CABLE ADJUSTMENT . . 101
BENCH SEAT BACK
REMOVAL............................101
INSTALLATION........................101
BENCH SEAT BACK COVER
REMOVAL............................102
INSTALLATION........................102
RSSEATS23-85
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INSTALLATION
INSTALLATION
(1) Place child restraint seat module in position on
seat back (Fig. 4).
(2) Position seat back hinge interlock lever over
the top of the outboard child restraint seat hinge
(Fig. 5).
(3) Install screws attaching child restraint seat
module hinges to seat back frame lower rail (Fig. 1).
(4) Install screws attaching top of module to seat
back frame upper rail (Fig. 3). Tighten nuts to 7 N´m
(62 in. lbs.) torque.
(5) Install push in fasteners attaching upper bol-
ster to child restraint seat module (Fig. 2).
(6) Return seat back to folded position.
(7) Install seat back cover.
(8) Check belt for smooth operation and verify
interlock operation. Recliner should not operate with
child seat deployed.
SYNCHRONIZING CABLE ADJUSTMENT
NOTE: Bench seats equipped with child restraint
seats have an interlock feature that will not allow
the seat back to fold forward with the child seat
open.
If the seat back hinges do not release at the same
time the synchronizing cable must be adjusted.
(1) Remove seat from vehicle. Refer to Owner's
Manual for proper procedures.
(2) Disengage cable from the recline mechanism by
pulling the cable end toward the front of the seat
(Fig. 6).
(3) Pull U-shaped locking tab on self-adjusting
mehcanism to disengage auto-adjust feature.
(4) Reattach self-adjusting mechanism, pulling
against spring load to tighten cable.
(5) Press locking tab onto the adjusting mecha-
nism to lock into place.
Fig. 4 CHILD RESTRAINT SEAT MODULE
1 - 1ST REAR SEAT BACK
2 - CHILD RESTRAINT SEAT MODULE
3 - SEAT BACK HINGE INTERLOCK LEVER
Fig. 5 INTERLOCK LEVER
1 - CHILD RESTRAINT SEAT HINGE
2 - SEAT BACK HINGE INTERLOCK LEVER
3 - 1ST REAR SEAT BACK
4 - SEAT BACK FRAME RAIL
RSSEATS23-87
CHILD SEAT MODULE, BENCH SEAT (Continued)
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FRONT SEATBACK
REMOVAL
NOTE: On front seats equipped with side air bags,
the seatback is serviced as an assembly.
(1) Remove head rest sleeves. (Refer to 23 - BODY/
SEATS/HEADREST SLEEVE - REMOVAL)
(2) Remove the armrest. (Refer to 23 - BODY/
SEATS/ARMREST - REMOVAL)
(3) Remove the seatback recliner lever.
(4) Remove the lumbar adjustment lever.
(5) Remove both seat cushion side covers. (Refer to
23 - BODY/SEATS/FRONT SEAT CUSHION SIDE
COVER - REMOVAL)
(6) Remove nut attaching the recliner to the seat-
back frame (Fig. 15).
(7) Remove both pivot bolts and remove seatback
from recliner.
INSTALLATION
(1) Place seat back into position.
(2) Install both pivot bolts attaching seat back
frame to seat track. Tighten bolts to 54 N´m (40 ft.
lbs.) torque.(3) Install nut attaching the recliner to the seat
back frame. Tighten nut to 12 N´m (105 in. lbs.)
torque.
(4) Install both seat cushion side covers. (Refer to
23 - BODY/SEATS/FRONT SEAT CUSHION SIDE
COVER - INSTALLATION)
(5) Install the lumbar adjustment lever.
(6) Install the seat back recliner lever.
(7) Install the armrest. (Refer to 23 - BODY/
SEATS/ARMREST - INSTALLATION)
(8) Install headrest sleeves. (Refer to 23 - BODY/
SEATS/HEADREST SLEEVE - INSTALLATION)
FRONT SEATBACK ASSIST
STRAP
REMOVAL
(1) Using a small screw driver, pry screw plugs
from ends of assist strap (Fig. 16).
(2) Remove screws attaching assist strap to seat-
back.
(3) Remove assist strap from vehicle.
INSTALLATION
(1) Place assist strap in position on vehicle.
(2) Install screws attaching assist strap to seat
back. Tighten screws to 2.5 N´m (22 in. lbs.).
(3) Insert screw plugs into ends of assist strap
(Fig. 16).
FRONT SEATBACK PANEL
REMOVAL
(1) Remove the screws (Fig. 17).
(2) Tip the top of the panel away from the seat
back and lift off the hooks at the bottom to remove.
Fig. 15 FRONT SEATBACK
Fig. 16 FRONT SEATBACK ASSIST STRAP
1 - ASSIST STRAP
2 - SCREW PLUG
3 - SEAT BACK
RSSEATS23-91
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(4) Place seat back hinge in position on seat.
(5) Install bolts attaching seat back hinge to seat
cushion frame. Tighten bolts to 48 N´m (35 ft. lbs.)
torque.
(6) Install shoulder bolts attaching seat back hinge
to seat back frame (Fig. 37). Tighten nuts to 34 N´m
(25 ft. lbs.) torque.(Refer to 23 - BODY/SEATS/
BENCH SEAT BACK - INSTALLATION)
(7) Install bench seat back hinge covers. (Refer to
23 - BODY/SEATS/SEAT BACK HINGE COVERS -
50/50 SPLIT, BENCH - INSTALLATION)
(8) Verify seat back hinge operation and adjust
synchronizing cable, if equipped. (Refer to 23 -
BODY/SEATS/SYNCHRONIZING CABLE ADJUST-
MENT)
SYNCHRONIZING CABLE ADJUSTMENT
NOTE:
Bench seats equipped with child restraint seats
have an interlock feature that will not allow the seat
back to fold forward with the child seat open.
If the seat back hinges do not release at the same
time the synchronizing cable must be adjusted.
(1) Remove seat from vehicle. Refer to Owner's
Manual for proper procedures.
(2) Disengage cable from the recline mechanism by
pulling the cable end toward the front of the seat
(Fig. 38).
(3) Pull U-shaped locking tab on self-adjusting
mehcanism to disengage auto-adjust feature.
(4) Reattach self-adjusting mechanism, pulling
against spring load to tighten cable.
(5) Press locking tab onto the adjusting mecha-
nism to lock into place.
BENCH SEAT BACK
REMOVAL
NOTE: Bench seats equipped with child restraint
seats have an interlock feature that will not allow
the seat back to fold forward with the child seat
open.
(1) Remove the headrests. (Refer to 23 - BODY/
SEATS/HEADREST - REMOVAL)
(2) Remove the armrests, if equipped. (Refer to 23
- BODY/SEATS/ARMREST - REMOVAL)
(3) Remove the upper hinge cover. (Refer to 23 -
BODY/SEATS/SEAT BACK HINGE COVERS -
REMOVAL)
(4) Disengage synchronizing cable housing from
seat back hinge, if equipped.
(5) Disengage synchronizing cable end from (clip
on left side) hinge latch release arm, if equipped.
(6) Remove shoulder bolts attaching seat back
hinge to seat back frame (Fig. 39).
(7) Remove the seat back.
INSTALLATION
NOTE: Bench seats equipped with child restraint
seats have an interlock feature that will not allow
the seat back to fold forward with the child seat
open.
Fig. 37 BENCH SEAT BACK HINGE
1 - SEATBACK FRAME SHOULDER BOLTS
2 - SEAT CUSHION FRAME BOLTS
3 - SEATBACK HINGE
Fig. 38 SYNCHRONIZING CABLE
1 - CABLE END
2 - LOCKING TAB
3 - SETBACK HINGE
RSSEATS23 - 101
BENCH SEAT BACK HINGE (Continued)
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(1) Install the seat back.
(2) Install the shoulder bolts attaching the seat
back hinge to the seat back frame and tighten to 34
N´m (25 ft. lbs.) torque.
(3) Connect the synchronizing cable end from (clip
on left side) hinge latch release arm, if equipped.
(4) Connect the synchronizing cable housing to the
seat back hinge, if equipped.
(5) Install the upper hinge cover. (Refer to 23 -
BODY/SEATS/SEAT BACK HINGE - INSTALLA-
TION)
(6) Install the armrests, if equipped. (Refer to 23 -
BODY/SEATS/ARMREST - INSTALLATION)
(7) Install the headrest sleeves. (Refer to 23 -
BODY/SEATS/HEADREST SLEEVE - INSTALLA-
TION)
(8) Adjust synchronizing cable, if equipped. (Refer
to 23 - BODY/SEATS/SYNCHRONIZING CABLE
ADJUSTMENT)
BENCH SEAT BACK COVER
REMOVAL
(1) Remove the bench seat back. (Refer to 23 -
BODY/SEATS/BENCH SEAT BACK - REMOVAL)
(2) Remove the bench seatback panel. (Refer to 23
- BODY/SEATS/BENCH SEATBACK PANEL -
REMOVAL)
(3) Disconnect the cover J-straps.
(4) Remove the seat back cover from the seat back
assembly.
INSTALLATION
(1) Install seat back cover onto the seat back
frame and cushion assembly.(2) Connect the J-straps.
(3) Install the bench seatback panel. (Refer to 23 -
BODY/SEATS/BENCH SEATBACK PANEL -
INSTALLATION)
(4) Install the seat back. (Refer to 23 - BODY/
SEATS/BENCH SEAT BACK - INSTALLATION)
BENCH SEAT TRACK
REMOVAL
(1) Remove second row seat from vehicle. Refer to
Owner's Manual for proper procedure.
(2) Place seat on clean covered work surface.
(3) Disengage seat track adjuster link wire from
track being removed.
(4) Remove nuts attaching track to seat riser (Fig.
40).
(5) Remove track from seat riser.
INSTALLATION
(1) Place track in position on seat riser.
(2) Install nuts attaching track to seat riser. (Fig.
40). Tighten nuts to 48 N´m (35 ft. lbs.) torque.
(3) Engage seat track adjuster link wire onto track
being installed.
(4) Install second row seat into vehicle.
Fig. 39 SEAT BACK HINGE - TYPICAL
1 - SEATBACK FRAME SHOULDER BOLTS
2 - SEAT CUSHION FRAME BOLTS
3 - SEATBACK HINGE
Fig. 40 BENCH SEAT TRACK
1 - SEAT TRACK ADJUSTER LINK
2 - RISER
3 - SEAT TRACK NUTS
4 - SEAT TRACK
5 - RISER BOLTS
23 - 102 SEATSRS
BENCH SEAT BACK (Continued)
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SYMPTOM POSSIBLE CAUSE
Buzz, Squeak,Rattles from sunroof Loose or broken attaching hardware.
No lubracation in track.
Worn or broken mechanism.
Cables bunched or kinked
Sunshade will not function or does not
operate smoothlySunshade feet are missing, broken or loose.
No lubracation in track.
Track obstructions or interference.
Glass movement not consistant or glass does
not operate smoothlyGlass and Track timing.
Glass and Track alignment
Cables and Guide alignment
WATER DRAINAGE AND WIND NOISE DIAGNOSIS
The sliding glass panel is designed to seal water
entry with a snug fit between the roof and the seal.
The fit can be checked by inserting a piece of paper
between the roof and the seal. The piece of paper
should have some resistance when pulled out when
the glass panel is in the closed position. The sunroof
housing will drain off a minimum amount of water.
Excessive wind noise could result if the gap clear-
ances are exceeded. The sunroof glass panel may
need to be adjusted. Refer to Sunroof Glass Panel
Adjustment for proper procedures.
Adequate drainage is provided by a drain trough in
the sunroof housing which encircles the sliding glass
panel and leads to drain hoses. If a wet headliner or
other water leak complaints are encountered, before
performing any adjustments, first ensure that the
drainage system is not plugged or disconnected. Use
a pint container to pour water into the sunroof hous-
ing drain trough. If water flow is restricted, use com-
pressed air to blow out any material plugging the
drain system. Retest system again.
To further check for a disconnected drain hose:
(1) Remove A-pillar trim, sun visors, and map
lamps/mini console.
(2) Remove sunroof opening trim lace. Refer to
Sunroof Opening Trim Lace.
NOTE: Care must be taken not to fold or kink the
headliner upon removal.
(3) Lower headliner as necessary to gain access to
sunroof housing drain tubes. Refer to Headlining
Removal and Installation for proper procedures.
(4) Repair as necessary.
DRAIN TUBE
REMOVAL
FRONT HOSES
NOTE: Front A-pillars are filled with sound deaden-
ing foam and the front drain tubes are sealed into
the pillars.
(1) Move glass panel to the fully closed position.
(2) Disconnect negative battery cable.
(3) Remove headliner (Refer to 23 - BODY/INTE-
RIOR/HEADLINER - REMOVAL).
(4) Disconnect the drain hose from the sunroof
housing (Fig. 1).
(5) Drain any liquid from hose connection, repair
as necessary.
REAR HOUSING HOSE
(1) Move glass panel to the fully closed position.
(2) Disconnect negative battery cable.
(3) Remove headliner (Refer to 23 - BODY/INTE-
RIOR/HEADLINER - REMOVAL).
(4) Remove third seat or seats from vehicle.
(5) Remove second seat belt lower anchor.
(6) Remove third seat lower anchor.
(7) Remove quarter trim bolster.
(8) Remove trim panel screws.
(9) Remove quarter trim panel
(10) Disconnect the drain hose from the sunroof
housing. (Fig. 1).
(11) Drain any liquid from hose connection, if nec-
essary, and remove tube.
23 - 116 SUNROOFRS
SUNROOF (Continued)
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²air recirculation button. The Recirculate button
contains an LED that illuminates to show when the
function is in operation.
²an air conditioning button that allows the com-
pressor to be turned on/off. The Snowflake button
contains an LED that illuminates to shown when the
function is in operation.
²rotary knobs for front and rear fan speed selec-
tion.
²a rotary knob for mode control.
REAR CONTROL PANEL
A rear control panel centrally mounted on the
headliner has a rotary adjustment for temperature
and fan speed control of the rear unit by intermedi-
ate seat passengers when the front control rear knob
is set to the rear position.
DESCRIPTION - AUTOMATIC TEMPERATURE
CONTROL
The Automatic Temperature Control (ATC) allows
occupants to select a comfort temperature, which is
the perceived temperature level not the actual pas-
senger compartment air temperature.
The Automatic Temperature Control system
includes a dust and odor air filter. The filter element
is the same size as the air conditioning evaporator to
ensure ample capacity. A door at the base of the
heater and air conditioning housing below the glove
box provides easy access to the filter element.
The ATC computer utilizes integrated circuitry and
information carried on the Programmable Communi-
cations Interface (PCI) data bus network to monitor
many sensors and switch inputs throughout the vehi-
cle. In response to those inputs, the internal circuitry
and programming of the ATC computer allow it to
control electronic functions and features of the ATC
system. The inputs to the ATC computer are:
²Vehicle Speed/Engine RPM± The ATC com-
puter monitors engine RPM, vehicle speed and Man-
ifold Absolute Pressure information from the PCM.
²Coolant Temperature± ATC computer moni-
tors Coolant temperature received from the PCM and
converts it to degrees Fahrenheit.
²Ambient Temperature± ATC computer moni-
tors Ambient temperature from the Compass Mini
Trip Computer (CMTC) and converts it to degrees
Fahrenheit.
²Engine Miscellaneous Sensor Status±ATC
computer monitors A/C disable information from the
PCM.
²Refrigerant Pressure± ATC computer moni-
tors Barometric Pressure, Intake Air Temperature,
High Side Pressure and Methanol Content as broad-
cast by the PCM.²Door Ajar Status± The ATC computer moni-
tors Driver Front Door, Passenger Front Door, Left
Rear Door, Right Rear Door and Liftgate ajar infor-
mation, as identified by the Body Control Module
(BCM), to determine if all in-car temperatures should
be maintained.
²Dimming± The ATC computer monitors dim-
ming status from the BCM to determine the required
level of brightness and will dim accordingly.
²Vehicle Odometer± The ATC computer moni-
tors the vehicle odometer information from the BCM
to prevent flashing the VF tube icons if the manual
motor calibration or manual cool down tests have
failed. Flashing of the display icons will cease when
the vehicle odometer is greater than 3 miles.
²English/Metric± The ATC computer monitors
the English/Metric information broadcast by the
CMTC. The set temp displays for both the front and
rear control heads will be set accordingly.
²Vehicle Identification Number± The ATC
computer monitors the last eight characters of the
VIN broadcast by the PCM and compares it to the
information stored in EEPROM. If it is different, the
new number will be stored over the old one and a
motor calibration shall be initiated.
²A/C System Information± The ATC computer
will send a message for Evaporator Temperature too
Low, Fan Blower Relay status, Evaporator Sensor
Failure, Rear Window Defogger Relay and A/C Select.
FRONT CONTROL PANEL
The front control panel and integral computer is
mounted in the instrument panel.
The instrument panel mounted control and inte-
gral computer contains:
²A power button which allows the system to be
completely turned off. The display is blank when the
system is off.
²Three rocker switches that select comfort tem-
peratures from 15É to 30É C (59É to 85É F), which are
shown in the vacuum-fluorescent digital control dis-
play. If the set temp is 59 and the down button is
pressed, the set temp value will become 55 but the
display will show LO. If the set temp is 85 and the
up button is pressed, the set temp value will become
90 but the display will show HIGH. Temperatures
can be displayed in either metric or Fahrenheit,
which is controlled from the overhead console.
²A rocker switch that selects a cool-down rate.
LO-AUTO or HI-AUTO are displayed when the sys-
tem is in automatic operation.
²A defroster button which turns on the defroster
independently during full automatic control. A
defroster symbol illuminates in the display when the
button is pressed.
24 - 2 HEATING & AIR CONDITIONINGRS
HEATING & AIR CONDITIONING (Continued)
ProCarManuals.com

²Air recirculation button. A Recirculation symbol
appears in the display when the button is pressed, or
when the system exceeds 80 percent circulated air
under automatic control due to high air conditioning
demand.
²Rear window defogger on/off switch. A graphic
symbol shows when the defroster is on.
²An air conditioning button that allows the com-
pressor to be turned off. A Snowflake symbol is illu-
minated when air conditioning is on, whether under
manual or automatic control.
²Rotary knob for front fan speed selection can
override the automatic controls. LEDs surrounding
the knob show the current setting.
²Rotary knob for control of the Rear system.
²A rotary knob for mode control can override the
automatic controls. LEDs surrounding the knob show
the current setting.
²Computer logic remembers the settings of the
controls when the ignition is turned off and retains
those settings after a restart. If the system is off
when the ignition is turned off it will be off when the
engine is restarted, etc.
²Computer logic provides variable air recircula-
tion under high temperature and humidity condi-
tions. Because recirculation is generally accompanied
by increased fan noise, the proportion of recirculated
to outside air gradually approaches full recirculation
over a broad temperature range.
²Computer logic enables additional heat for diesel
equipped vehicles via a supplemental diesel heater.
REAR CONTROL PANEL
A rear control panel centrally mounted on the
headliner includes a vacuum-flourescent digital dis-
play, a rocker control for temperature and rotary con-
trols for adjustment of mode and fan speed control of
the rear unit by intermediate seat passengers.
OPERATION
OPERATION - DUAL ZONE
²The mode control knob enables continously vari-
able proportioning of air flow between modes but has
detents adjacent to each icon.
²The blower control provides five separate speeds.
²When the fan is off, the HVAC computer closes
the recirculation door to prevent outside air from
entering the passenger compartment.
²Interior air may be recirculated to speed up
heating or cooling in all modes except defrost and
mix by pressing the Recirculate button on the control
panel.
²To reduce humidity for rapid defogging the A/C
compressor runs automatically in modes from ªmix'to full defrost when outside temperatures are above
freezing.
²Air conditioning is available in any mode by
pressing the snowflake, A/C on/off, button.
OPERATION - MANUAL THREE ZONE
FRONT CONTROL PANEL
²Primary control of the rear compartment unit is
on the instrument panel. This control allows the
driver to set the rear compartment fan speed, to turn
the rear unit off, or to give control to the intermedi-
ate seat occupants by switching to the REAR posi-
tion. When the rear unit is controlled from the
instrument panel, rear air temperature is based on
the driver-side temperature control position, and the
mode (floor or overhead air) is based on the front
control's mode position.
²The mode control knob enables continously vari-
able proportioning of air flow between modes but has
detents adjacent to each icon.
²The blower control provides five separate speeds
and Off. When the fan is off, the HVAC computer
closes the recirculation door to prevent outside air
from entering the passenger compartment.
²Interior air may be recirculated to speed up
heating or cooling in all modes exccept defrost and
mix by pressing the Recirculate button on the control
panel.
²To reduce humidity for rapid defogging the A/C
compressor runs automatically in modes from ªmix'
to full defrost when outside temperatures are above
freezing.
²Air conditioning is available in any mode by
pressing the snowflake, A/C on/off, button.
REAR CONTROL PANEL
With the rear control active, temperature selection
dictates indirectly the mode (floor or overhead air) of
the rear unit: a low temperature setting directs flow
to the overhead outlets and a high temperature set-
ting to the floor.
OPERATION - THREE ZONE ATC
Comfort temperature or perceived temperature is
affected by air flow, sun impinging on exposed skin,
etc. The air temperature may be higher or lower than
the comfort temperature. Two infrared sensors, in the
instrument panel center stack i measure the temper-
ature of the occupants to determine their comfort
level relative to the selected comfort temperature.
The HVAC computer in the control module adjusts
the air flow rate and temperature to maintain the
customer-perceived comfort temperature. The air
temperature in the passenger compartment at any
time may be slightly higher or lower than the com-
RSHEATING & AIR CONDITIONING24-3
HEATING & AIR CONDITIONING (Continued)
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