Front door CHRYSLER VOYAGER 2005 Service Manual

(1) Disconnect and isolate the negative battery
cable.
(2) Remove the glove box from the instrument
panel (Refer to 23 - BODY/INSTRUMENT PANEL/
GLOVE BOX - REMOVAL).
(3) Disconnect the two wire harness connectors
from the blower motor power module (Fig. 21).
(4) Remove the two screws that secure the blower
motor power module to the HVAC housing.
(5) Remove the blower motor power module from
the HVAC housing.
INSTALLATION
(1) Position the blower motor power module into
the HVAC housing.
(2) Install the two screws that secure the blower
motor power module to the HVAC housing. Tighten
the screws to 2 N´m (17 in. lbs.).
(3) Connect the two wire connectors to the blower
motor power module.
(4) Install the glove box (Refer to 23 - BODY/IN-
STRUMENT PANEL/GLOVE BOX - INSTALLA-
TION).
(5) Reconnect the negative battery cable.
RECIRCULATION DOOR
ACTUATOR
DESCRIPTION
The recirculation door actuator is a reversible,
12-volt direct current (DC), servo motor. The single
recirculation door actuator is located on the passen-
ger side end of the HVAC housing, on the air inlet
housing. The recirculation door actuator is mechani-
cally connected to the recirculation-air door. The
recirculation door actuator is interchangeable with
the actuators for the blend-air door(s) and the mode
door. Each actuator is contained within an identical
black molded plastic housing with an integral wire
connector receptacle. Two integral mounting tabs
allow the actuator to be secured with two screws to
the air inlet housing. Each actuator also has an iden-
tical output shaft with splines that connects it to the
linkage that drives the recirculation-air door. The
recirculation door actuator does not require mechan-
ical indexing to the recirculation-air door, as it is
electronically calibrated by the A/C-heater control.
OPERATION
The recirculation door actuator is connected to the
heater-A/C control module through the vehicle elec-
trical system by a dedicated two-wire lead and con-
nector of the HVAC wire harness. The recirculation
door actuator can move the recirculation-air door in
two directions. When the A/C-heater control pulls the
voltage on one side of the motor connection high and
the other connection low, the recirculation-air door
will move in one direction.
When the A/C-heater control makes the voltage to
both connections high or both connections low, the
recirculation-air door stops and will not move. The
A/C-heater control uses a feedback signal positioning
system to monitor the operation and relative position
of the recirculation door actuator and the recircula-
tion-air door. The A/C-heater control learns the recir-
culation-air door stop positions during the calibration
procedure and will store a diagnostic trouble code
(DTC) for any problems it detects in the recirculation
door actuator circuits.
The recirculation door actuator is diagnosed using
a scan tool (Refer to 24 - HEATING & AIR CONDI-
TIONING - DIAGNOSIS AND TESTING and to 24 -
HVAC Electrical Diagnostics for more information).
The recirculation door actuator cannot be adjusted
or repaired and, if faulty or damaged, it must be
replaced.
Fig. 21 Blower Motor Power Module - Typical
1 - POWER MODULE
2 - LOWER GLOVE BOX OPENING REINFORCEMENT
3 - HVAC HOUSING
RSCONTROLS - FRONT24-31
POWER MODULE - BLOWER MOTOR (Continued)

REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Pull the carpet on the passenger side front
floor away from the dash panel far enough to access
the recirculation door actuator.
(3) Disconnect the HVAC wire harness connector
from the recirculation door actuator (Fig. 22).
(4) Remove the two screws that secure the recircu-
lation door actuator to the air inlet housing.
(5) Remove the recirculation door actuator from
the air inlet housing.
INSTALLATION
(1) Position the recirculation door actuator onto
the air intake housing. If necessary, rotate the actua-
tor slightly to align the splines on the actuator out-
put shaft with those in the recirculation air door.
(2) Install the two screws that secure the recircu-
lation door actuator to the air intake housing.
Tighten the screws to 2 N´m (17 in. lbs.).
(3) Connect the HVAC wire harness connector to
the recirculation door actuator.
(4) Reposition the carpet on the passenger side
front floor back up to the dash panel.
(5) Reconnect the battery negative cable.
(6) Perform the heater-A/C control calibration pro-
cedure (Refer to 24 - HEATING & AIR CONDITION-
ING/CONTROLS - FRONT/A/C-HEATER CONTROL
- STANDARD PROCEDURE - HEATER-A/C CON-
TROL CALIBRATION).
Fig. 22 Recirculation Door Actuator - LHD Shown,
RHD Typical
1 - AIR INLET HOUSING
2 - RECIRCULATION DOOR ACTUATOR
3 - HVAC WIRE HARNESS
4 - SCREW (2)
5 - LOWER HVAC HOUSING
24 - 32 CONTROLS - FRONTRS
RECIRCULATION DOOR ACTUATOR (Continued)

CONTROLS - REAR
TABLE OF CONTENTS
page page
A/C-HEATER CONTROL
DESCRIPTION.........................33
OPERATION...........................33
REMOVAL.............................33
INSTALLATION.........................34
BLEND DOOR ACTUATOR
DESCRIPTION.........................34
OPERATION...........................35
REMOVAL.............................35
INSTALLATION.........................35
BLOWER MOTOR RELAY
DESCRIPTION.........................36
OPERATION...........................36
REMOVAL.............................37
INSTALLATION.........................37
BLOWER MOTOR RESISTOR BLOCK
DESCRIPTION.........................37OPERATION...........................37
DIAGNOSIS AND TESTING
REAR BLOWER MOTOR RESISTOR
BLOCK.............................38
REMOVAL.............................38
INSTALLATION.........................39
MODE DOOR ACTUATOR - REAR
DESCRIPTION.........................39
OPERATION...........................39
REMOVAL.............................39
INSTALLATION.........................40
POWER MODULE - REAR BLOWER MOTOR
DESCRIPTION.........................40
OPERATION...........................40
REMOVAL.............................41
INSTALLATION.........................41
A/C-HEATER CONTROL
DESCRIPTION
The rear heating-A/C system is controlled by rota-
ry-type blower motor and temperature controls, cen-
trally mounted directly into the headliner, or if
equipped with the available DVD player, located in
the player housing. The rear A/C-heater control
allows selection of three blower motor speeds and an
Off position when the center knob on the front A/C-
heater control is set to the Rear position, otherwise
the front unit controls both front and rear heater-A/C
operation.
OPERATION
With the rear A/C-heater control active, tempera-
ture selection dictates the air distribution mode (floor
or overhead air) of the rear unit. A cool temperature
setting directs flow to the overhead outlets and a
warm temperature setting to the floor. Refer to Body
Diagnostic Procedures for further diagnostic informa-
tion.
REMOVAL
(1) Disconnect and isolate the negative battery
cable.
(2) If the rear A/C-heater control is mounted in the
headliner, use a trim stick or another suitable wide
flat bladed tool and gently pry the top edge of the
control bezel away from the headliner far enough to
release the two snap clip retainers (Fig. 1).
(3) Pull the rear A/C-heater control and bezel
assembly rearward far enough to access the wire har-
ness connector on the back of the control.
(4) Disconnect the wire harness connector from the
rear A/C-heater control.
(5) Remove the rear A/C-heater control and bezel
assembly from the headliner.
(6) If the rear A/C-heater control is mounted in the
video screen housing, remove the housing from the
headliner (Refer to 8 - ELECTRICAL/AUDIO/VIDEO
SCREEN - REMOVAL).
(7) Remove the three screws that secure the rear
A/C-heater control to the bezel or video screen hous-
ing, depending on application and remove the control
(Fig. 2).
RSCONTROLS - REAR24-33

INSTALLATION
(1) Position the rear A/C-heater control onto the
bezel or video screen housing, depending on applica-
tion.
(2) Install the three screws that secure the rear
A/C-heater control to the bezel or video screen hous-
ing. Tighten the screws to 2 N´m (17 in. lbs.).(3) If the rear A/C-heater control is to be mounted
into the headliner, position the rear A/C-heater con-
trol near the headliner and connect the wire harness
connector to the rear of the control.
(4) Insert the locator tabs on the back of the rear
control bezel over the forward edge of the headliner
opening.
(5) Slide the rear A/C-heater control bezel forward
far enough to align the snap clips on the bezel with
the receptacles on the headliner and by using hand
pressure, press the top edge of the bezel upward
until the two snap clips fully seat into their recepta-
cles.
(6) If the rear A/C-heater control is mounted to the
video screen housing, install the video screen to the
headliner (Refer to 8 - ELECTRICAL/AUDIO/VIDEO
SCREEN - INSTALLATION).
(7) Reconnect the negative battery cable.
(8) Using the DRB-IIItscan tool, reset the Rear
Temperature Selector calibration values.
(9) Verify that the Actuator Calibration of the
Front Control has passed. If an Actuator Calibration
has not passed correct any errors before proceeding
further.
(10) Rotate the Rear Temperature Selector counter
clockwise to the Cold Position, allow the Selector to
remain in the Cold Position for 5 seconds.
(11) Rotate the Rear Temperature Selector Clock-
wise to the Hot Position, allow the Selector to remain
in the Cold Position for 5 seconds.
(12) Calibration is now complete.
BLEND DOOR ACTUATOR
DESCRIPTION
The rear blend door actuator is a reversible,
12-volt Direct Current (DC), servo motor. The single
blend door actuator is located on the outboard side of
the rear HVAC housing, below the mode door actua-
tor. The blend door actuator is mechanically con-
nected to the blend air door.
The rear blend door actuator is interchangeable
with the actuator for the mode door. Each actuator is
contained within an identical black molded plastic
housing with an integral wire connector receptacle.
Two integral mounting tabs allow the actuator to be
secured with two screws to the rear HVAC housing.
Each actuator also has an identical output shaft with
splines that connects it to the pivot or linkage of the
proper door. The rear blend door actuator does not
require mechanical indexing to the blend air door
pivot, as it is electronically calibrated by the front
heater-A/C control module.
Fig. 1 A/C-Heater Control - Rear
1 - TRIM STICK
2 - BEZEL
3 - REAR A/C-HEATER CONTROL
4 - HEADLINER
Fig. 2 Heater-A/C Control Bezel
1 - BEZEL/VIDEO SCREEN HOUSING (AS EQUIPPED)
2 - SNAP CLIP (2)
3 - REAR A/C-HEATER CONTROL
4 - SCREW (3)
5 - BEZEL LOCATOR TAB (2)
24 - 34 CONTROLS - REARRS
A/C-HEATER CONTROL (Continued)

OPERATION
The rear blend door actuator is connected to the
front heater-A/C control module through the vehicle
electrical system by a dedicated two-wire take out
and connector of the rear HVAC wire harness. The
blend door actuator can move the blend air door in
two directions. When the front heater-A/C control
module pulls the voltage on one side of the motor
connection high and the other connection low, the
blend air door will move in one direction. When the
module reverses the polarity of the voltage to the
motor, the blend air door moves in the opposite direc-
tion. When the module makes the voltage to both
connections high or both connections low, the blend
air door stops and will not move. These same motor
connections also provide a feedback signal to the
front heater-A/C control module. This feedback signal
allows the module to monitor the operation and rela-
tive positions of the blend door actuator and the
blend air door. The front heater-A/C control module
learns the blend air door stop positions during the
calibration procedure and will store a Diagnostic
Trouble Code (DTC) for any problems it detects in
the blend door actuator circuits.
The rear blend door actuator can be diagnosed
using a DRBIIItscan tool. Refer to Body Diagnostic
Procedures for more information. The rear blend door
actuator cannot be adjusted or repaired and, if dam-
aged or faulty, it must be replaced.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the right quarter trim panel and right
D-pillar trim panel from the quarter inner panel
(Refer to 23 - BODY/INTERIOR/QUARTER TRIM
PANEL - REMOVAL).
(3) Remove the two screws that secure the top of
the quarter trim panel attaching bracket to the quar-
ter inner panel.
(4) Remove the screw that secures the back of the
rear HVAC housing to the right D-pillar.
(5) Remove the screw that secures the front of the
rear HVAC housing to the right quarter inner panel.
(6) Carefully pull the top of the rear HVAC hous-
ing away from the right quarter inner panel far
enough to reach between the rear HVAC housing and
the quarter inner panel to access the blend door
actuator (Fig. 3).
(7) Remove the two screws that secure the blend
door actuator to the rear HVAC housing.
(8) Pull the blend door actuator away from the
rear HVAC housing far enough to disengage the
actuator output shaft from the rear blend door pivot.(9) Raise the blend door actuator far enough to
access and disconnect the rear HVAC wire harness
connector from the actuator.
(10) Remove the rear blend door actuator from
between the rear HVAC housing and the quarter
inner panel.
INSTALLATION
(1) Position the blend door actuator between the
rear HVAC housing and the quarter inner panel.
(2) Connect the rear HVAC wire harness connector
to the rear blend door actuator.
(3) Position the rear blend door actuator onto the
rear HVAC housing. If necessary, rotate the actuator
slightly to align the splines on the actuator output
shaft with those in the blend air door pivot.
(4) Install the two screws that secure the rear
blend door actuator to the rear HVAC housing.
Tighten the screws to 2 N´m (17 in. lbs.).
(5) Push the top of the rear HVAC housing back
into position against the right quarter inner panel.
Fig. 3 Rear HVAC Mode Door Actuator
1 - SCREW (2)
2 - MODE DOOR ACTUATOR
3 - SCREW (2)
4 - CONNECTOR
5 - BLEND DOOR ACTUATOR
6 - WIRE HARNESS CONNECTOR
RSCONTROLS - REAR24-35
BLEND DOOR ACTUATOR (Continued)

(6) Install the screw that secures the front of the
rear HVAC housing to the right quarter inner panel.
Tighten the screw to 11 N´m (97 in. lbs.).
(7) Install the screw that secures the back of the
rear HVAC housing to the right D-pillar. Tighten the
screw to 11 N´m (97 in. lbs.).
(8) Install the two screws that secure the top of
the quarter trim panel attaching bracket to the quar-
ter inner panel. Tighten the screws to 2 N´m (17 in.
lbs.).
(9) Reinstall the right quarter trim panel and
right D-pillar trim panel onto the quarter inner
panel (Refer to 23 - BODY/INTERIOR/QUARTER
TRIM PANEL - INSTALLATION).
(10) Reconnect the battery negative cable.
(11) Perform the heater-A/C control calibration
procedure (Refer to 24 - HEATING & AIR CONDI-
TIONING/CONTROLS - FRONT/A/C-HEATER CON-
TROL - STANDARD PROCEDURE - HEATER-A/C
CONTROL CALIBRATION).
BLOWER MOTOR RELAY
DESCRIPTION
The rear blower motor relay is a International
Standards Organization (ISO)-type relay (Fig. 4).
Relays conforming to the ISO specifications have
common physical dimensions, current capacities, ter-
minal patterns, and terminal functions. The rear
blower motor relay is located in the integrated power
module (IPM) in the engine compartment. See the
fuse and relay map on the inner surface of the cover
of the IPM for rear blower motor relay identification
and location.
The black, molded plastic case is the most visible
component of the rear blower motor relay. Five male
spade-type terminals extend from the bottom of the
base to connect the relay to the vehicle electrical sys-tem, and the ISO designation for each terminal is
molded into the base adjacent to each terminal. The
ISO terminal designations are as follows:
²30 (Common Feed)- This terminal is con-
nected to the movable contact point of the relay.
²85 (Coil Ground)- This terminal is connected
to the ground feed side of the relay control coil.
²86 (Coil Battery)- This terminal is connected
to the battery feed side of the relay control coil.
²87 (Normally Open)- This terminal is con-
nected to the normally open fixed contact point of the
relay.
²87A (Normally Closed)- This terminal is con-
nected to the normally closed fixed contact point of
the relay.
The rear blower motor relay cannot be adjusted or
repaired. If the relay is damaged or faulty, it must be
replaced.
OPERATION
The rear blower motor relay is an electromechani-
cal switch that uses a low current input from the
Front Control Module (FCM) to control the high cur-
rent output to the rear blower motor resistor (man-
ual heater-A/C control) or rear blower motor power
module (ATC heater-A/C control). The movable com-
mon feed contact point is held against the fixed nor-
mally closed contact point by spring pressure. When
the relay coil is energized, an electromagnetic field is
produced by the coil windings. This electromagnetic
field draws the movable relay contact point away
from the fixed normally closed contact point, and
holds it against the fixed normally open contact
point. When the relay coil is de-energized, spring
pressure returns the movable contact point back
against the fixed normally closed contact point. The
resistor or diode is connected in parallel with the
relay coil in the relay, and helps to dissipate voltage
spikes and electromagnetic interference that can be
generated as the electromagnetic field of the relay
coil collapses.
The rear blower motor relay terminals are con-
nected to the vehicle electrical system through a
receptacle in the Integrated Power Module (IPM).
The inputs and outputs of the rear blower motor
relay include:
²The common feed terminal (30) receives a bat-
tery current input from the battery through a B(+)
circuit at all times.
²The coil ground terminal (85) receives a ground
input through the front/rear blower motor relay con-
trol circuit only when the FCM electronically pulls
the control circuit to ground.
²The coil battery terminal (86) receives a battery
current input from the battery through a B(+) circuit
at all times.
Fig. 4 Rear Blower Motor Relay
24 - 36 CONTROLS - REARRS
BLEND DOOR ACTUATOR (Continued)

INSTALLATION
(1) Position the rear blower motor resistor block
into the rear HVAC housing.
(2) Install the two screws that secure the rear
blower motor resistor block to the rear HVAC hous-
ing. Tighten the screws to 2 N´m (17 in. lbs.).
(3) Connect the rear HVAC wire harness connector
to the rear blower motor resistor block.
(4) Reinstall the right quarter trim panel and
right D-pillar trim panel onto the quarter inner
panel (Refer to 23 - BODY/INTERIOR/QUARTER
TRIM PANEL - INSTALLATION).
(5) Reconnect the battery negative cable.
MODE DOOR ACTUATOR -
REAR
DESCRIPTION
The rear mode door actuator is a reversible, 12-volt
Direct Current (DC), servo motor. The mode door
actuator is located on the outboard side of the rear
HVAC housing, above the blend door actuator. The
mode door actuator is mechanically connected to the
mode door.
The rear mode door actuator is interchangeable
with the actuator for the blend door. Each actuator is
contained within an identical black molded plastic
housing with an integral wire connector receptacle.
Two integral mounting tabs allow the actuator to be
secured with two screws to the rear HVAC housing.
Each actuator also has an identical output shaft with
splines that connects it to the pivot or linkage of the
proper door. The rear mode door actuator does not
require mechanical indexing to the mode door pivot,
as it is electronically calibrated by the front heater-
A/C control module.
OPERATION
The rear mode door actuator is connected to the
front heater-A/C control module through the vehicle
electrical system by a dedicated two-wire take out
and connector of the rear HVAC wire harness. The
rear mode door actuator can move the mode door in
two directions. When the front heater-A/C control
module pulls the voltage on one side of the motor
connection high and the other connection low, the
rear mode door will move in one direction. When themodule reverses the polarity of the voltage to the
motor, the rear mode door moves in the opposite
direction. When the module makes the voltage to
both connections high or both connections low, the
mode door stops and will not move. These same
motor connections also provide a feedback signal to
the front heater-A/C control module. This feedback
signal allows the module to monitor the operation
and relative positions of the rear mode door actuator
and the mode door. The front heater-A/C control mod-
ule learns the rear mode door stop positions during
the calibration procedure and will store a Diagnostic
Trouble Code (DTC) for any problems it detects in
the mode door actuator circuits.
The rear mode door actuator can be diagnosed
using a DRBIIItscan tool. Refer to Body Diagnostic
Procedures for more information. The rear mode door
actuator cannot be adjusted or repaired and, if dam-
aged or faulty, it must be replaced.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the right quarter trim panel and right
D-pillar trim panel from the quarter inner panel
(Refer to 23 - BODY/INTERIOR/QUARTER TRIM
PANEL - REMOVAL).
(3) Remove the two screws that secure the top of
the quarter trim panel attaching bracket to the quar-
ter inner panel.
(4) Remove the screw that secures the back of the
rear HVAC housing to the right D-pillar.
(5) Remove the screw that secures the front of the
rear HVAC housing to the right quarter inner panel.
(6) Carefully pull the top of the rear HVAC hous-
ing away from the right quarter inner panel far
enough to reach between the rear HVAC housing and
the quarter inner panel to access the rear mode door
actuator (Fig. 7).
(7) Remove the two screws that secure the mode
door actuator to the rear HVAC housing.
(8) Pull the mode door actuator away from the
rear HVAC housing far enough to disengage the
actuator output shaft from the mode door linkage.
(9) Raise the mode door actuator far enough to
access and disconnect the rear HVAC wire harness
connector from the actuator
RSCONTROLS - REAR24-39
BLOWER MOTOR RESISTOR BLOCK (Continued)

(10) Remove the rear mode door actuator from
between the rear HVAC housing and the quarter
inner panel.
INSTALLATION
(1) Position the mode door actuator between the
rear HVAC housing and the quarter inner panel.
(2) Reconnect the rear HVAC wire harness connec-
tor to the rear mode door actuator.
(3) Position the rear mode door actuator onto the
rear HVAC housing. If necessary, rotate the actuator
slightly to align the splines on the actuator output
shaft with those in the mode door linkage.
(4) Install the two screws that secure the rear
mode door actuator to the rear HVAC housing.
Tighten the screws to 2 N´m (17 in. lbs.).
(5) Push the top of the rear HVAC housing back
into position against the right quarter inner panel.
(6) Install the screw that secures the front of the
rear HVAC housing to the right quarter inner panel.
Tighten the screw to 11 N´m (97 in. lbs.).(7) Install the screw that secures the back of the
rear HVAC housing to the right D-pillar. Tighten the
screw to 11 N´m (97 in. lbs.).
(8) Install the two screws that secure the top of
the quarter trim panel attaching bracket to the quar-
ter inner panel. Tighten the screws to 2 N´m (17 in.
lbs.).
(9) Reinstall the right quarter trim panel and
right D-pillar trim panel onto the quarter inner
panel (Refer to 23 - BODY/INTERIOR/QUARTER
TRIM PANEL - INSTALLATION).
(10) Reconnect the battery negative cable.
(11) Perform the heater-A/C control calibration
procedure (Refer to 24 - HEATING & AIR CONDI-
TIONING/CONTROLS - FRONT/A/C-HEATER CON-
TROL - STANDARD PROCEDURE - HEATER-A/C
CONTROL CALIBRATION).
POWER MODULE - REAR
BLOWER MOTOR
DESCRIPTION
A rear blower motor power module is used on this
model when it is equipped with the optional Auto-
matic Temperature Control (ATC) system. Models
equipped with the standard manual heater-A/C sys-
tem use a blower motor resistor block , instead of the
blower motor power module (Refer to 24 - HEATING
& AIR CONDITIONING/CONTROLS/BLOWER
MOTOR RESISTOR BLOCK - DESCRIPTION).
The rear blower motor power module is installed in
the back of the rear HVAC housing, directly above
the expansion valve. The module consists of a molded
plastic mounting plate with two integral connector
receptacles. Concealed behind the mounting plate
within the evaporator housing is the power module
electronic circuitry and a large finned, heat sink. The
power module is accessed for service by removing the
right quarter and D-pillar trim panels.
OPERATION
The rear blower motor power module is connected
to the vehicle electrical system through a dedicated
take out and connector of the rear HVAC wire har-
ness. A second connector receptacle receives the pig-
tail wire connector from the rear blower motor. The
rear blower motor power module allows the micropro-
cessor-based Automatic Temperature Control (ATC)
heater-A/C control module to calculate and provide
infinitely variable blower motor speeds based upon
either manual blower switch input or the ATC pro-
gramming using a Pulse Width Modulated (PWM)
circuit strategy. The PWM voltage is applied to a
comparator circuit which compares the PWM signal
voltage to the blower motor feedback voltage. The
Fig. 7 Rear HVAC Blend Door Actuator
1 - SCREW (2)
2 - MODE DOOR ACTUATOR
3 - SCREW (2)
4 - CONNECTOR
5 - BLEND DOOR ACTUATOR
6 - WIRE HARNESS CONNECTOR
24 - 40 CONTROLS - REARRS
MODE DOOR ACTUATOR - REAR (Continued)

DISTRIBUTION - FRONT
TABLE OF CONTENTS
page page
AIR FILTER
DESCRIPTION.........................42
REMOVAL.............................42
INSTALLATION.........................43
AIR OUTLETS
DESCRIPTION.........................43
REMOVAL
FRONT CENTER BEZEL OUTLETS........44
FRONT DEMISTER OUTLETS............44
INSTRUMENT PANEL OUTLETS..........45
INSTALLATION
FRONT CENTER BEZEL OUTLETS........45
FRONT DEMISTER OUTLETS............45
INSTRUMENT PANEL OUTLETS..........45
BLOWER MOTOR
DESCRIPTION.........................45
OPERATION...........................45
DIAGNOSIS AND TESTING
FRONT BLOWER MOTOR...............46
REMOVAL.............................48INSTALLATION.........................49
DEFROSTER DUCT
REMOVAL.............................49
INSTALLATION.........................50
FLOOR DISTRIBUTION DUCTS
REMOVAL.............................50
INSTALLATION.........................50
HVAC HOUSING
REMOVAL
REMOVAL...........................50
DISSASEMBLY.......................51
INSTALLATION
ASSEMBLY..........................53
INSTALLATION.......................53
INSTRUMENT PANEL DEMISTER DUCTS
REMOVAL.............................54
INSTALLATION.........................54
INSTRUMENT PANEL DUCTS
REMOVAL.............................55
INSTALLATION.........................55
AIR FILTER
DESCRIPTION
A dust and odor air filter is standard equipment on
models equipped with the three zone temperature
control systems (Fig. 1). The filter element is the
same size as the front air conditioner evaporator to
ensure ample filtering capacity. A removable door on
the bottom of the front HVAC housing below the
glove box provides easy access to the filter element
for replacement. The filter should be checked and
replaced at least once every 24,000 km (15,000 miles)
and checked if heater-A/C system performance seems
lower than expected.
REMOVAL
(1) Locate the air filter door on the bottom of the
lower HVAC housing just outboard of the passenger
side of the instrument panel center stack (Fig. 2).
(2) Slide the air filter door latch toward the rear of
the vehicle until it engages the opened stop on the
door.Fig. 1 Air Filter - LHD Shown, RHD Typical
1 - LOWER HVAC HOUSING
2 - LOWER EDGE OF INSTRUMENT PANEL
3 - AIR FILTER (IF EQUIPPED)
4 - CENTER FLOOR BRACKET COVER
5 - FILTER SEALING EDGES (IF EQUIPPED)
6 - AIR FILTER OPENING (IF EQUIPPED)
24 - 42 DISTRIBUTION - FRONTRS

(3) Pull the air filter door straight downward to
disengage it from the air filter opening of the lower
HVAC housing.
(4) Use your fingers to reach through the air filter
opening of the lower HVAC housing far enough to
grasp the air filter.
(5) Pull the air filter straight down and out of the
HVAC housing.
INSTALLATION
(1) Note the ªAirflowº directional arrow imprinted
on the foam seal around the frame of the air filter.
This arrow should always be oriented towards the
center of the vehicle.
(2) With the air filter ªAirflowº arrow properly ori-
ented, carefully slide the filter fully upward into the
HVAC housing through the air filter opening.
(3) With the latch still positioned against its
opened stop, reinstall the air filter door onto the
lower HVAC housing air filter opening.
(4) Slide the air filter door latch toward the front
of the vehicle until it hits the closed stop on the door.
AIR OUTLETS
DESCRIPTION
Based upon the system mode selected, conditioned
air can exit the front HVAC housing through one or a
combination of the four main housing outlets: defrost,
demist, panel, or floor. Once the conditioned air exits
the unit housing, it is directed through molded plas-
tic ducts to the various outlets in the vehicle interior.
These outlets and their locations are as follows:²Defroster Outlet- A single, centrally mounted
outlet delivers air for defrosting the large windshield.
Because outlet vanes are not needed to direct flow, a
simple, integral grid is molded into the center of the
instrument panel top cover to prevent objects from
falling into the duct. If the defroster outlet is faulty
or damaged, the instrument panel top cover must be
replaced.
²Demister Outlets- There are two side window
demisters that aid in defogging and defrosting the
front door windows. One demister outlet is located at
each outboard end of the instrument panel top pad,
near the belt line at the A-pillars. The demister out-
lets can be removed from the top pad individually for
service replacement.
²Instrument Panel Outlets- There are five
panel outlets in the instrument panel, one located
near each outboard end of the instrument panel fac-
ing the rear of the vehicle, and three located near the
top of the instrument panel center bezel. On models
with manual temperature control, all five of these
outlets are fully adjustable. On models with Auto-
matic Temperature Control (ATC) system, the center
outlet in the center bezel has fixed vanes because it
also houses the remote infrared temperature sensors
for the front seat positions. The outboard outlets can
be removed individually for service replacement. The
center bezel outlets are serviced as a gang of three
outlets and, on models with ATC, also includes the
infrared sensors.
²Front Door Rear Outlets- A fully adjustable
outlet located at the rear of each front door trim
panel supplies only cooled air to the intermediate
seat passengers. Air is supplied to these outlets from
the instrument panel through ducts in the doors that
use molded seals at the instrument panel to prevent
air leakage. The door ducts are integral to the front
door trim panels. These outlets also incorporate a red
reflector to improve the safety and visibility of an
opened front door to traffic approaching the vehicle
from the rear at night. These outlets can be removed
from the door trim panels for service replacement.
²Front Floor Outlets- There are two front floor
outlets, one located above each side of the floor panel
center tunnel below the instrument panel. These out-
lets are integral to the front HVAC distribution hous-
ing.
²Rear Floor Outlets- Wide rear floor outlets
located under each front seat have integral, fixed
directional dividers to distribute heated air across
the floor for intermediate seat passengers. These out-
lets are integral to the floor distribution ducts routed
under the front floor carpet from an outlet nozzle on
the bottom of the front HVAC distribution housing.
Fig. 2 Air Filter Door - Typical
1 - AIR FILTER DOOR
2-LATCH
3 - CLOSED STOP
4 - LOWER HVAC HOUSING
5 - OPENED STOP
RSDISTRIBUTION - FRONT24-43
AIR FILTER (Continued)