(15) Roll and fold carpet forward away from rear
door opening.
(16) Extract carpet through sliding door opening
(Fig. 5).
INSTALLATION
(1) Insert carpet through sliding door opening.
(2) Roll carpet rearward toward rear door opening.
(3) Roll carpet under instrument panel.(4) Install push pins fasteners through carpet and
grommet into floor to attach carpet to floor in front
seat area (Fig. 5).
(5) Install push pins fasteners in the rear area.
CAUTION: Ensure that the correct fasteners are
installed in the proper locations. Damage to the fuel
tank may result.
(6) Install floor escutcheons (Fig. 4).
(7) Install the floor console trays. (Refer to 23 -
BODY/INTERIOR/FLOOR CONSOLE TRAY -
INSTALLATION)
(8) Install Quarter trim panels.
(9) Install D-pillar trim covers.
(10) Install lower B-pillar trim covers.
(11) Install rear door sill plate.
(12) Install sliding door sill plates. (Refer to 23 -
BODY/INTERIOR/SLIDING DOOR SILL PLATE -
INSTALLATION)
(13) Install front cowl panels and sill plates.
(14) Install the passenger seats. Refer to the Own-
er's Manual for proper procedures.
(15) Install front center console.
(16) Install front seats. (Refer to 23 - BODY/
SEATS/SEAT - INSTALLATION)
COWL TRIM
REMOVAL
(1) Remove door sill plate.
(2) Disengage hidden clips holding cowl trim to
cowl panel (Fig. 1).
(3) Remove cowl trim from vehicle.
INSTALLATION
(1) Place cowl trim panel in position on vehicle
(Fig. 1).
(2) Engage hidden clips attaching cowl trim to
cowl panel.
(3) Install door sill plate.
C-PILLAR TRIM
REMOVAL
(1) Remove quarter trim panel.
(2) Remove seat belt turning loop from height
adjuster.
(3) Remove screw attaching C-pillar trim panel to
C-pillar (Fig. 6).
(4) Disengage hidden clips attaching trim to upper
C-pillar.
(5) Remove upper C-pillar trim from vehicle.
Fig. 4 SEAT ESCUTCHEONS
1 - SEAT ESCUTCHEON
2 - FLOOR CARPET
Fig. 5 FLOOR CARPET
1 - CARPET LOCATOR GROMMET
2 - PUSH PIN
3 - CARPET
4 - CARPET GROMMET
5 - HEEL PROTECTOR PAD
6 - BODY ASSEMBLY
RSINTERIOR23-75
CARPETS AND FLOOR MATS (Continued)
ProCarManuals.com
(4) Remove A-pillar trim panels.
(5) Place protective covers over instrument panel
and hood.
(6) Remove windshield molding. Using pliers, pull
outward on molding at the bottom of A-pillars.
(7) Using a sharp cold knife, cut urethane adhe-
sive holding the windshield to the A-pillars, roof
header and cowl pinch weld fences (Fig. 1). A power
cutting device can be used if available.
(8) Remove windshield from vehicle.
WINDSHIELD REMOVAL ± INTERIOR METHOD
(1) Remove inside rear view mirror.
(2) Remove instrument panel top cover. Refer to
Group 8E, Instrument Panel and Systems.
(3) Remove A-pillar trim covers.
(4) Place protective covers over instrument panel
and hood.
(5) Using a reciprocating or oscillating power
knife, cut urethane adhesive holding the windshield
to the A-pillars, roof header and cowl pinch weld
fences. Refer to instructions provided with the equip-
ment being used.
(6) Remove windshield from vehicle.
INSTALLATION
The urethane adhesive holding the windshield to
the opening pinch weld (fence) can be cut using a
sharp cold knife from the exterior of the vehicle.
Using the cold knife method is effective if the wind-
shield is already broken. If the glass must be sal-
vaged, cutting the urethane adhesive from the
interior of the vehicle using a reciprocating or oscil-
lating power knife is recommended.
CAUTION: Open the left front door glass before
installing windshield to avoid pressurizing the pas-
senger compartment. If a door is slammed before
urethane bonding is cured, water leaks can result.
Allow the urethane at least 24 hours to cure before
returning the vehicle to use.To avoid stressing the replacement windshield, the
urethane bonding material on the windshield fence
should be smooth and consistent to the shape of
the replacement windshield. The support spacers
should be cleaned and properly installed on weld
studs or repair screws at bottom of windshield
opening.
(1) Place replacement windshield into windshield
opening and position glass in the center of the open-
ing against the compression spacers.
(2) Verify the glass lays evenly against the pinch
weld fence at the sides, top and bottom of the
replacement windshield. If not, the pinch weld fence
must be formed to the shape of the new glass.
(3) Remove replacement windshield from wind-
shield opening.
(4) Position the windshield inside up on a suitable
work surface with two padded, wood 10 cm by 10 cm
by 50 cm (4 in. by 4 in. by 20 in.) blocks, placed par-
allel 75 cm (2.5 ft.) apart (Fig. 2).
WARNING: DO NOT USE SOLVENT BASED GLASS
CLEANER TO CLEAN WINDSHIELD BEFORE
APPLYING GLASS PREP AND PRIMER. POOR
ADHESION CAN RESULT.
(5) Clean inside of windshield with ammonia based
glass cleaner and lint-free cloth.
(6) Install molding to perimeter of windshield.
(7) Apply Glass Prep adhesion promoter 25 mm (1
in.) wide around perimeter of windshield and wipe
with clean/dry lint-free cloth until no streaks are vis-
ible.
(8) Apply Glass Primer 25 mm (1 in.) wide around
perimeter of windshield. Allow at least three minutes
drying time.
(9) Using a razor knife, remove as much original
urethane as possible. Do not damage paint on wind-
shield fence.
(10) Apply pinch weld primer 19 mm (0.75 in.)
wide around the windshield fence. Allow at least
three minutes drying time.
(11) If a low viscosity urethane adhesive is used,
install compression spacers on the fence around the
windshield opening (Fig. 3).
(12) Apply a 10 mm (0.4 in.) bead of urethane on
center line of windshield fence.
(13) With the aid of a helper, position the wind-
shield over the windshield opening.
(14) Slowly lower windshield glass to windshield
opening fence. Guide the molding into proper position
as necessary. Push windshield inward until molding
is flush to roof line and A-pillars (Fig. 3).
(15) Clean access urethane from exterior with
MopartSuper Kleen or equivalent.
Fig. 1 CUT URETHANE AROUND WINDSHIELD
1 - COLD KNIFE
2 - WINDSHIELD
23 - 106 STATIONARY GLASSRS
WINDSHIELD (Continued)
ProCarManuals.com
DESCRIPTION FIGURE
REAR SEAT REINFORCEMENTS - SHORT WHEEL BASE ONLY 98
CENTER CONSOLE REINFORCEMENT - SHORT WHEEL BASE ONLY 99
WHEELHOUSES - SHORT WHEEL BASE ONLY 100
FRONT SEAT CROSS MEMBER - SHORT WHEELBASE, ALL WHEEL DRIVE ONLY 101
FLOOR PAN SIDE RAIL - LONG WHEEL BASE ONLY 102
INNER BODY SIDE SILL REINFORCEMENTS 103
TOE BOARD CROSS MEMBER 104
FRONT SIDE RAIL - SHORT WHEEL BASE ONLY 105
DASH PANEL REINFORCEMENT 106
LOWER COWL PLENUM 107
UPPER COWL PLENUM SUPPORT 108
UPPER DASH PANEL 109
COWL SIDE PANELS 110
INSTRUMENT PANEL ATTACHMENT TAPPING PLATES 111
INSTRUMENT PANEL, DASH PANEL, ACM MODULE AND ACCELERATOR PEDAL 112
STRUT TOWER BRACKET AND COWL PLENUM 113
FRONT SIDE RAILS TO LOWER DASH PANEL 114
INNER BODY SIDE SILL TO LOWER DASH PANEL 115
FRONT HINGE TAPPING PLATE 116
FRONT HINGE PILLAR 117
INNER WINDSHIELD FRAME 118
WINDSHIELD FRAME 119
FENDER BRACKET 120
INNER B-PILLAR 121
STRIKER LATCH AND TAPPING PLATES 122
RIGHT REAR INNER QUARTER PANEL - LONG WHEEL BASE ONLY 123
RIGHT REAR INNER QUARTER PANEL/OUTER WHEELHOUSE - LONG WHEEL BASE
ONLY124
RIGHT REAR BODY SIDE APERTURE - LONG WHEEL BASE ONLY 125
STRIKER LATCH REINFORCEMENT - LONG WHEEL BASE ONLY 126
BELT TAPPING PLATE - LONG WHEEL BASE ONLY 127
C-PILLAR REINFORCEMENT - LONG WHEEL BASE ONLY 128
OUTER WHEELHOUSE - LONG WHEEL BASE ONLY 129
C AND D-PILLAR INNER REINFORCEMENTS - LONG WHEEL BASE ONLY 130
LEFT REAR INNER QUARTER PANEL - LONG WHEEL BASE ONLY 131
OUTER WHEELHOUSE EXTENSION - LONG WHEEL BASE ONLY 132
TAIL LAMP - LONG WHEEL BASE ONLY 133
SLIDING DOOR LATCH - LONG WHEEL BASE ONLY 134
ROOF BOW EXTENSION - LONG WHEEL BASE ONLY 135
RIGHT REAR INNER QUARTER PANEL - SHORT WHEEL BASE ONLY 136
LATCH REINFORCEMENT AND OUTER WHEELHOUSE - SHORT WHEEL BASE ONLY 137
D-PILLAR REINFORCEMENT - SHORT WHEEL BASE ONLY 138
23 - 162 BODY STRUCTURERS
WELD LOCATIONS (Continued)
ProCarManuals.com
Fig. 110 COWL SIDE PANELS
Fig. 111 INSTRUMENT PANEL ATTACHMENT TAPPING PLATES
RSBODY STRUCTURE23 - 207
WELD LOCATIONS (Continued)
ProCarManuals.com
Fig. 112 INSTRUMENT PANEL, DASH PANEL, ACM MODULE AND ACCELERATOR PEDAL
23 - 208 BODY STRUCTURERS
WELD LOCATIONS (Continued)
ProCarManuals.com
HEATING & AIR CONDITIONING
TABLE OF CONTENTS
page page
HEATING & AIR CONDITIONING
DESCRIPTION
DESCRIPTION - SINGLE ZONE...........1
DESCRIPTION - DUAL ZONE.............1
DESCRIPTION - MANUAL THREE ZONE.....1
DESCRIPTION - AUTOMATIC
TEMPERATURE CONTROL...............2
OPERATION
OPERATION - DUAL ZONE...............3
OPERATION - MANUAL THREE ZONE......3
OPERATION - THREE ZONE ATC..........3
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - A/C COOL
DOWN TEST..........................4DIAGNOSIS AND TESTING - A/C
PERFORMANCE TEST..................5
DIAGNOSIS AND TESTING - HEATER
PERFORMANCE TEST..................6
SPECIFICATIONS - HEATER-A/C SYSTEM.....7
CONTROLS - FRONT......................8
CONTROLS - REAR......................29
DISTRIBUTION - FRONT...................39
DISTRIBUTION - REAR....................52
PLUMBING - FRONT.....................60
PLUMBING - REAR......................94
DIESEL SUPPLEMENTAL HEATER - DCHA -
EXPORT..............................106
HEATING & AIR
CONDITIONING
DESCRIPTION
DESCRIPTION - SINGLE ZONE
A single zone heating and air conditioning system
allows one temperature setting for the entire vehicle.
The full range of temperatures that the system can
produce are available by rotating the temperature
control located in control panel.
The control panel and integral computer is
mounted in the instrument panel.
DESCRIPTION - DUAL ZONE
A manual Dual Zone Heating and Air Conditioning
system allows completely independent side-to-side
tempeture control of the discharge air.
The control panel and integral computer is located
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. Contains an LED that illumi-
nates to show when the function is operational.
²rear window defogger on/off switch. Contains an
LED that illuminates to show when the function is
operational.
²slide controls for completely independent side-to-
side temperature control of the discharged air. The
full range of temperature that the system can pro-
duce in any mode is available on either side of thevehicle by independently positioning the slide con-
trols on the instrument panel.
²air recirculation on/off switch. The Recirculate
button contains an LED that illuminates to show
when the function is in operation.
²air conditioning on/off switch. The Snowflake
button contains an LED that illuminates to shown
when the function is in operation.
²rotary knob for fan speed selection.
²a rotary knob for mode control.
DESCRIPTION - MANUAL THREE ZONE
The fully adjustable Three-Zone front and rear
heating and air conditioning system allows interme-
diate seat passengers the ability to regulate air tem-
perature as well as fan speed. All controls are
identified by ISO graphic symbols.
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.
²rear window defogger on/off switch.
²slide controls for completely independent side-to-
side temperature control of the discharge air. The full
range of temperature that the system can produce in
any mode is available on either side of the vehicle by
independently positioning the slide controls on the
instrument panel.
RSHEATING & AIR CONDITIONING24-1
ProCarManuals.com
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)
ProCarManuals.com