2001 CHRYSLER VOYAGER Service Manual

load capacity fog light bulb service interval open hood trunk child seat

Page 3665 of 4284

CHRYSLER VOYAGER 2001 Service Manual BLOWER MOTOR RESISTOR
DESCRIPTION
A blower motor resistor is used on this model when
it is equipped with the manual heater-A/C control
(Fig. 7). Models equipped with the optional Auto-
matic Temperatu

BLOWER MOTOR RESISTOR
DESCRIPTION
A blower motor resistor is used on this model when
it is equipped with the manual heater-A/C control
(Fig. 7). Models equipped with the optional Auto-
matic Temperature Control (ATC) use a blower power
module, instead of the blower motor resistor. The
blower motor resistor is installed in a mounting hole
on the back of the rear heater-A/C unit housing,
directly above the expansion valve. The resistor con-
sists of a molded plastic mounting plate with an inte-
gral connector receptacle. Concealed behind the
mounting plate within the rear heater-A/C unit hous-
ing are two coiled resistor wires contained within a
protective stamped steel cage. The resistor mounting
plate is secured with two screws to the rear heater-
A/C unit housing and is accessed for service by
removing the right quarter and D-pillar trim panels.The blower motor resistor wires will get hot when
in use. Do not touch the resistor wires or the protec-
tive cage if the blower motor has been running. The
blower motor resistor cannot be adjusted or repaired
and, if faulty or damaged, it must be replaced.
OPERATION
The blower motor resistor is connected to the vehi-
cle electrical system through a dedicated take out
and connector of the rear HVAC wire harness. The
blower motor resistor has two resistor wires, each of
which will reduce the current flow through the
blower motor to change the blower motor speed. The
blower motor switch in the manual heater-A/C con-
trol directs the ground path for the blower motor
through the correct resistor wire to obtain the
selected speed. With the blower motor switch in the
lowest speed position, the ground path for the motor
is applied through both resistor wires. Each higher
speed selected with the blower motor switch applies
the blower motor ground path through fewer of the
resistor wires, increasing the blower motor speed.
When the blower motor switch is in the highest
speed position, the blower motor resistor wires are
bypassed and the blower motor receives a direct path
to ground through the blower motor switch. The
blower motor resistor may be diagnosed using con-
ventional diagnostic tools and methods.
DIAGNOSIS AND TESTING - BLOWER MOTOR
RESISTOR
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
(1) Disconnect and isolate the battery negative
cable.
(2) Disconnect the rear HVAC wire harness con-
nector for the blower motor resistor from the resistor
connector receptacle.
(3) Check for continuity between each of the
blower motor switch input terminals of the blower
motor resistor and the resistor output terminal. In
each case there should be continuity. If OK, repair
the wire harness circuits between the blower motor
switch and the blower motor resistor or the blower
motor pigtail wires as required. If not OK, replace
the faulty blower motor resistor.Fig. 7 Blower Motor Resistor
1 - REAR HEATER-A/C UNIT HOUSING
2 - D-PILLAR
3 - BLOWER PIGTAIL WIRE
4 - CONNECTOR
5 - EXPANSION VALVE
6 - SCREW (2)
7 - BLOWER MOTOR RESISTOR
RSCONTROLS - REAR24-35

Page 3666 of 4284

CHRYSLER VOYAGER 2001 Service Manual REMOVAL
WARNING:
THE BLOWER MOTOR RESISTOR MAY GET VERY
HOT DURING NORMAL OPERATION. IF THE
BLOWER MOTOR WAS TURNED ON, WAIT FIVE
MINUTES TO ALLOW THE BLOWER MOTOR RESIS-
TOR TO COOL BEFORE PERFORMING

REMOVAL
WARNING:
THE BLOWER MOTOR RESISTOR MAY GET VERY
HOT DURING NORMAL OPERATION. IF THE
BLOWER MOTOR WAS TURNED ON, WAIT FIVE
MINUTES TO ALLOW THE BLOWER MOTOR RESIS-
TOR TO COOL BEFORE PERFORMING DIAGNOSIS
OR SERVICE. FAILURE TO TAKE THIS PRECAU-
TION CAN RESULT IN PERSONAL INJURY.
CAUTION: Do not operate the blower motor with the
blower motor resistor removed from the circuit.
Failure to take this precaution can result in vehicle
damage.
(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) Disconnect the rear HVAC wire harness con-
nector for the blower motor resistor from the resistor
connector receptacle (Fig. 8).
(4) Remove the two screws that secure the blower
motor resistor to the rear heater-A/C unit housing.
(5) Remove the blower motor resistor from the rear
heater-A/C unit housing.
INSTALLATION
CAUTION: Do not operate the blower motor with the
blower motor resistor removed from the circuit.
Failure to take this precaution can result in vehicle
damage.
(1) Position the blower motor resistor into the rear
heater-A/C unit housing (Fig. 8).
(2) Install and tighten the two screws that secure
the blower motor resistor to the rear heater-A/C unit
housing. Tighten the screws to 2 N´m (17 in. lbs.).
(3) Reconnect the rear HVAC wire harness connec-
tor for the blower motor resistor to the resistor con-
nector receptacle.
(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.
EXPANSION VALVE SOLENOID
DESCRIPTION
A rear expansion valve solenoid is used on models
equipped with the optional Automatic Temperature
Control (ATC) heating and air conditioning system
(Fig. 9). The solenoid is located on the inboard side of
the rear expansion valve where it is concealed by the
quarter inner trim panel behind the right rear wheel
house. A short two-wire pigtail harness connects the
solenoid to the vehicle electrical system through a
take out and connector of the rear HVAC wire har-
ness. The solenoid is integral to the rear expansion
valve. The rear expansion valve solenoid cannot be
adjusted or repaired and, if faulty or damaged, the
rear expansion valve unit must be replaced.
Fig. 8 Blower Motor Resistor
1 - REAR HEATER-A/C UNIT HOUSING
2 - D-PILLAR
3 - BLOWER PIGTAIL WIRE
4 - CONNECTOR
5 - EXPANSION VALVE
6 - SCREW (2)
7 - BLOWER MOTOR RESISTOR
24 - 36 CONTROLS - REARRS
BLOWER MOTOR RESISTOR (Continued)

Page 3667 of 4284

CHRYSLER VOYAGER 2001 Service Manual OPERATION
The rear expansion valve solenoid is designed to
control the flow of refrigerant to the rear evaporator.
The solenoid receives fused battery current through
the rear blower motor relay on a

OPERATION
The rear expansion valve solenoid is designed to
control the flow of refrigerant to the rear evaporator.
The solenoid receives fused battery current through
the rear blower motor relay on a fused rear blower
motor relay output circuit, and receives a ground
feed from the front ATC heater-A/C control module
on a TXV solenoid feed circuit. The front ATC heater-
A/C control module is programmed to control solenoid
operation. When the solenoid blocks refrigerant flow
to the rear evaporator, the resulting increase in the
refrigerant circulation rate between the condenser
and the front evaporator provides improved A/C cool-
ing performance for the front seat occupants. The
solenoid may be diagnosed using a DRBIIItscan
tool. Refer to the appropriate diagnostic information.
INFRARED TEMPERATURE
SENSOR
DESCRIPTION
The rear infrared temperature sensor consists of
an infrared transducer that is concealed behind the
lens of the rear heater-A/C control in the headliner.
This sensor is used only on models equipped with the
optional Automatic Temperature Control (ATC) heat-
ing and air conditioning system. The rear infrared
temperature sensor is integral to the rear heater-A/C
control. The infrared sensor cannot be adjusted orrepaired and, if faulty or damaged, the rear heater-
A/C control unit must be replaced.
OPERATION
The rear infrared temperature sensor provides an
independent measurement input to the Automatic
Temperature Control (ATC) heater-A/C control mod-
ule that indicates the surface temperature of the rear
seat occupants. By using a surface temperature mea-
surement, rather than an air temperature measure-
ment, the ATC system is able to adjust itself to the
comfort level as perceived by the occupant. This
allows the system to detect and compensate for other
ambient conditions affecting comfort levels, such as
solar heat gain or evaporative heat loss. The ATC
system logic responds to the infrared sensor input by
calculating and adjusting the air flow temperature
and air flow rate needed to properly obtain and
maintain the selected comfort level temperatures for
the rear seat occupants. The ATC heater-A/C control
module continually monitors the infrared sensor cir-
cuit, and will store a Diagnostic Trouble Code (DTC)
for any problem it detects. This DTC information can
be retrieved and the infrared temperature sensor
diagnosed using a DRBIIItscan tool. Refer to the
appropriate diagnostic information.
MODE DOOR ACTUATOR
DESCRIPTION
Fig. 9 Expansion Valve Solenoid
1 - SOLENOID
2 - SOLENOID CONNECTOR
3 - SEALING PLATE
4 - EXPANSION VALVE
5 - SEALING PLATE
6 - HVAC CONNECTOR
Fig. 10 Mode Door Actuator
1 - SCREW (2)
2 - MODE DOOR ACTUATOR
3 - SCREW (2)
4 - CONNECTOR
5 - BLEND DOOR ACTUATOR
6 - CONNECTOR
RSCONTROLS - REAR24-37
EXPANSION VALVE SOLENOID (Continued)

Page 3668 of 4284

CHRYSLER VOYAGER 2001 Service Manual The mode door actuator is a reversible, 12-volt
Direct Current (DC), servo motor (Fig. 10). The sin-
gle mode door actuator is located on the outboard
side of the rear heater-A/C unit housing, above t

The mode door actuator is a reversible, 12-volt
Direct Current (DC), servo motor (Fig. 10). The sin-
gle mode door actuator is located on the outboard
side of the rear heater-A/C unit housing, above the
blend door actuator. The mode door actuator is
mechanically connected to the mode door linkage.
The mode door actuator is interchangeable with the
actuator for the blend air door. Each actuator is con-
tained within an identical black molded plastic hous-
ing with an integral wire connector receptacle. Two
integral mounting tabs allow the actuator to be
secured with two screws to the rear heater-A/C unit
housing. Each actuator also has an identical output
shaft with splines that connects it to the linkage or
pivot of the proper door. The mode door actuator does
not require mechanical indexing to the mode door
linkage, as it is electronically calibrated by the front
heater-A/C control module. The mode door actuator
cannot be adjusted or repaired and, if damaged or
faulty, it must be replaced.
OPERATION
The mode door actuator is connected to the front
heater-A/C control module through the vehicle elec-
trical system by a dedicated two-wire take out and
connector of the rear HVAC wire harness. The mode
door actuator can move the mode door in two direc-
tions. When the controlling heater-A/C control mod-
ule pulls the voltage on one side of the motor
connection high and the other connection low, the
mode door will move in one direction. When the mod-
ule reverses the polarity of the voltage to the motor,
the 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 mod-
ule to monitor the operation and relative positions of
the mode door actuator and the mode door. The front
heater-A/C control module learns the mode door stop
positions during the calibration procedure and will
store a Diagnostic Trouble Code (DTC) for any prob-
lems it detects in the mode door actuator circuits. A
DTC can be retrieved and the mode door actuator
can be diagnosed using a DRBIIItscan tool. Refer to
the appropriate diagnostic information.
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 heater-A/C unit housing to the right D-pillar.
(5) Remove the screw that secures the front of the
rear heater-A/C unit housing to the right quarter
inner panel.
(6) Carefully pull the top of the rear heater-A/C
unit housing away from the right quarter inner panel
far enough to reach between the rear heater-A/C unit
housing and the quarter inner panel to access the
mode door actuator (Fig. 11).
(7) Remove the two screws that secure the mode
door actuator to the rear heater-A/C unit housing.
(8) Pull the mode door actuator away from the
rear heater-A/C unit housing far enough to disengage
the actuator output shaft from the mode door link-
age.
(9) Raise the mode door actuator far enough to
access and disconnect the rear HVAC wire harness
connector for the actuator from the actuator connec-
tor receptacle.
(10) Remove the mode door actuator from between
the rear heater-A/C unit housing and the quarter
inner panel.
INSTALLATION
(1) Position the mode door actuator between the
rear heater-A/C unit housing and the quarter inner
panel.
Fig. 11 Mode Door Actuator
1 - SCREW (2)
2 - MODE DOOR ACTUATOR
3 - SCREW (2)
4 - CONNECTOR
5 - BLEND DOOR ACTUATOR
6 - CONNECTOR
24 - 38 CONTROLS - REARRS
MODE DOOR ACTUATOR (Continued)

Page 3669 of 4284

CHRYSLER VOYAGER 2001 Service Manual (2) Reconnect the rear HVAC wire harness connec-
tor for the mode door actuator to the actuator connec-
tor receptacle (Fig. 11).
(3) Position the mode door actuator onto the rear
heater-A/C unit hous

(2) Reconnect the rear HVAC wire harness connec-
tor for the mode door actuator to the actuator connec-
tor receptacle (Fig. 11).
(3) Position the mode door actuator onto the rear
heater-A/C unit 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 and tighten the two screws that secure
the mode door actuator to the rear heater-A/C unit
housing. Tighten the screws to 2 N´m (18 in. lbs.).
(5) Push the top of the rear heater-A/C unit hous-
ing back into position against the right quarter inner
panel.
(6) Install and tighten the screw that secures the
front of the rear heater-A/C unit housing to the right
quarter inner panel. Tighten the screw to 11 N´m (97
in. lbs.).
(7) Install and tighten the screw that secures the
back of the rear heater-A/C unit housing to the right
D-pillar. Tighten the screw to 11 N´m (97 in. lbs.).
(8) Install and tighten the two screws that secure
the top of the quarter trim panel attaching bracket to
the quarter inner panel. Tighten the screws to 1.7
N´m (15 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
DESCRIPTION
A blower power module is used on this model when
it is equipped with the optional Automatic Tempera-
ture Control (ATC) (Fig. 12). Models equipped with
the standard manual heater-A/C control use a blower
motor resistor, instead of the blower power module.
The blower power module is installed in a mounting
hole in the back of the rear heater-A/C unit housing,
directly above the expansion valve. The module con-
sists 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 module mounting plate is secured
with two screws to the rear heater-A/C unit housing
and is accessed for service by removing the right
quarter and D-pillar trim panels.The power module heat sink will get hot when in
use. Do not touch the heat sink if the blower motor
has been running. The blower power module cannot
be adjusted or repaired and, if faulty or damaged, it
must be replaced.
OPERATION
The blower power module is connected to the vehi-
cle electrical system through a dedicated take out
and connector of the rear HVAC wire harness. A sec-
ond connector receptacle receives the pigtail wire
connector from the blower motor. The blower power
module allows the microprocessor-based Automatic
Temperature Control (ATC) heater-A/C control mod-
ule to calculate and provide infinitely variable blower
motor speeds based upon either manual blower
switch input or the ATC programming using a Pulse
Width Modulated (PWM) circuit strategy. The PWM
Fig. 12 Power Module
1 - REAR HEATER-A/C UNIT HOUSING
2 - SCREW (2)
3 - D-PILLAR
4 - BLOWER PIGTAIL WIRE
5 - REAR HVAC WIRE HARNESS
6 - EXPANSION VALVE
7 - EXPANSION VALVE SOLENOID
8 - BLOWER POWER MODULE
RSCONTROLS - REAR24-39
MODE DOOR ACTUATOR (Continued)

Page 3670 of 4284

CHRYSLER VOYAGER 2001 Service Manual voltage is applied to a comparator circuit which com-
pares the PWM signal voltage to the blower motor
feedback voltage. The resulting output drives the
power module circuitry, which adjusts the volta

Page 3671 of 4284

CHRYSLER VOYAGER 2001 Service Manual DISTRIBUTION - FRONT
TABLE OF CONTENTS
page page
AIR FILTER
DESCRIPTION...........................41
REMOVAL..............................41
INSTALLATION...........................41
AIR OUTLETS
DESCR

DISTRIBUTION - FRONT
TABLE OF CONTENTS
page page
AIR FILTER
DESCRIPTION...........................41
REMOVAL..............................41
INSTALLATION...........................41
AIR OUTLETS
DESCRIPTION...........................42
REMOVAL..............................42
INSTALLATION...........................44
BLOWER MOTOR
DESCRIPTION...........................45
OPERATION.............................45
DIAGNOSIS AND TESTING.................45
BLOWER MOTOR......................45
REMOVAL..............................48
INSTALLATION...........................48DEFROSTER DUCT
REMOVAL..............................49
INSTALLATION...........................50
DEMISTER DUCTS
REMOVAL..............................50
INSTALLATION...........................50
FLOOR DISTRIBUTION DUCTS
REMOVAL..............................50
INSTALLATION...........................51
HVAC HOUSING
REMOVAL..............................51
INSTALLATION...........................52
PANEL DUCTS
REMOVAL..............................52
INSTALLATION...........................53
AIR FILTER
DESCRIPTION
A dust and odor air filter is standard equipment on
models equipped with the dual zone or three zone
temperature control systems (Fig. 1). The filter ele-
ment is the same size as the front air conditionerevaporator to ensure ample filtering capacity. A
removable door on the bottom of the front heater-A/C
unit housing below the glove box provides easy access
to the filter element for replacement. Filter replace-
ment is recommended at 24,000 kilometer (15,000
mile) intervals.
REMOVAL
(1) Locate the air filter door on the bottom of the
lower evaporator housing just outboard of the pas-
senger 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.
(3) Pull the air filter door straight downward to
disengage it from the air filter opening of the lower
evaporator housing.
(4) Use your fingers to reach through the air filter
opening of the lower evaporator housing far enough
to grasp the air filter.
(5) Pull the air filter straight down and out of the
evaporator housing (Fig. 1).
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
evaporator housing through the air filter opening.
Fig. 1 Air Filter
1 - LOWER EVAPORATOR HOUSING
2 - LOWER EDGE OF INSTRUMENT PANEL
3 - AIR FILTER
4 - INSTRUMENT PANEL CENTER FLOOR BRACKET COVER
5 - FOAM SEAL
6 - AIR FILTER OPENING
RSDISTRIBUTION - FRONT24-41

Page 3672 of 4284

CHRYSLER VOYAGER 2001 Service Manual (3) With the latch still positioned against its
opened stop, reinstall the air filter door onto the
lower evaporator housing air filter opening (Fig. 2).
(4) Slide the air filter door latch toward the

(3) With the latch still positioned against its
opened stop, reinstall the air filter door onto the
lower evaporator housing air filter opening (Fig. 2).
(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 heater-A/C unit housing
through one or a combination of the four main hous-
ing outlets: defrost, demist, panel, or floor. Once the
conditioned air exits the unit housing, it is directed
through molded plastic 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), 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 heater-A/C unit distri-
bution housing.
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 heater-A/C unit distribution
housing.
REMOVAL - CENTER BEZEL OUTLETS
The three outlets located near the top of the
instrument panel center bezel are serviced only as a
gang of all three outlets. If the vehicle is equipped
with the optional Automatic Temperature Control
(ATC) system, the center outlet of the three has fixed
vanes and also houses the remote front infrared tem-
perature sensors.
Fig. 2 Air Filter Door
1 - AIR FILTER DOOR
2-LATCH
3 - CLOSED STOP
4 - LOWER EVAPORATOR HOUSING
5 - OPENED STOP
24 - 42 DISTRIBUTION - FRONTRS
AIR FILTER (Continued)

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