Chrysler Pacifica. Manual — part 894
DISTRIBUTION - REAR
TABLE OF CONTENTS
page
page
BLOWER MOTOR
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FLOOR CONSOLE DUCTS
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BLOWER MOTOR
DESCRIPTION
Vehicles equipped with 4 passenger seating and
automatic temperature control (ATC) heating-A/C
system, use a 12-volt, direct current (DC) rear blower
motor. The rear blower motor has an integral wire
harness and two squirrel cage-type blower wheels
that are secured to the blower motor shaft (Fig. 1).
The blower motor and wheels are contained within
the two halves of the rear blower motor housing,
which is located under the front center floor console
cover.
OPERATION
The rear blower motor and wheels are used to con-
trol the velocity of air moving through the center
floor console ducts by spinning the blower wheels
within the housing at the selected or programmed
speed (depending on application).
The rear blower motor will operate whenever the
ignition switch is in the On position and the power
for the A/C-heater control of the automatic tempera-
ture control (ATC) heating-A/C system is turned on.
When the ATC A/C-heater control display reads
REAR AUTO or when the rear blower motor is off,
the switch located in the center console between the
second row seats is not functional. When the A/C-
heater control display reads REAR, only the rear
seat occupants control the rear blower motor speed
from the rear switch. When in the Rear mode, the
rear occupants can set the rear switch to any blower
motor speed including OFF or AUTO. While in the
Auto position, the rear blower motor speed will be
automatically controlled.
The rear blower motor speed is controlled by an
electronic blower motor power module, which uses a
pulse width modulated input from the ATC A/C-
heater control and feedback signal from the rear
blower motor to regulate the blower motor ground
path. The rear blower motor receives battery current
whenever the rear blower motor relay is energized.
For diagnosis and testing of the rear blower motor,
refer to 24 - HEATING & AIR CONDITIONING/DIS-
TRIBUTION - FRONT/BLOWER MOTOR - DIAG-
NOSIS AND TESTING.
The rear blower motor and blower motor wheels
are factory balanced and cannot be adjusted or
repaired. If faulty or damaged, the rear blower motor
and blower wheels must be replaced as an assembly.
Fig. 1 Rear Blower Motor
1 - REAR BLOWER MOTOR
2 - WIRE HARNESS
3 - BLOWER WHEEL (2)
4 - LOWER REAR BLOWER MOTOR HOUSING
CS
DISTRIBUTION - REAR
24 - 53
REMOVAL
NOTE: The rear blower motor and blower wheels
are serviced only as a balanced unit. If either com-
ponent is faulty or damaged, the entire blower
motor and wheel assembly must be replaced.
(1) Remove the front center floor console cover
(Refer to 23 - BODY/INTERIOR/CENTER CONSOLE
- REMOVAL).
(2) Disconnect and isolate the negative battery
cable.
(3) Disconnect the body wire harness connectors
from the rear blower motor power module and the
rear mode door actuator (Fig. 2).
(4) Remove the body wire harness bracket from
the console support bracket.
(5) Remove the eight screws and the two console
support brackets from the floor console base and duct
assembly
(6) Remove the four screws that secure the rear
blower motor housing to the floor console base and
duct assembly.
(7) Remove the rear blower motor housing and
place it on a bench.
(8) Disconnect the rear blower motor wire harness
connector from the power module.
(9) Remove the eleven retaining clips and three
screws that secure the housing together.
(10) Carefully separate the two halves of the hous-
ing.
(11) Remove the blower motor wire harness and
grommet from the housing and remove the blower
motor (Fig. 3).
INSTALLATION
(1) Position the rear blower motor into the housing
and install the blower motor wire harness and grom-
met.
(2) Assemble the two halves of the rear blower
motor housing and install the eleven retaining clips
and three screws. Tighten the screws to 2 N·m (17 in.
lbs.).
(3) Connect the rear blower motor wire harness
connector to the rear blower motor power module.
(4) Position the rear blower motor housing into the
floor console.
(5) Install the four screws that secure the rear
blower motor housing to the floor console base.
Tighten the screws to 2 N·m (17 in. lbs.).
(6) Position the two console support brackets onto
the floor console base.
(7) Install the eight screws that secure the support
brackets to the floor console base. Tighten the screws
to 2 N·m (17 in. lbs.).
(8) Install the body wire harness bracket onto the
console rear support bracket.
(9) Connect the body wire harness connectors to
the rear blower motor power module and the rear
mode door actuator.
(10) Reconnect the negative battery cable.
Fig. 2 Rear Blower Motor Housing
1 - SUPPORT BRACKET (FRONT)
2 - POWER MODULE
3 - SCREWS (8)
4 - SCREWS (4)
5 - REAR BLOWER MOTOR HOUSING
6 - REAR MODE DOOR ACTUATOR
7 - SUPPORT BRACKET (REAR)
Fig. 3 Rear Blower Motor
1 - REAR BLOWER MOTOR
2 - WIRE HARNESS GROMMET
3 - REAR BLOWER MOTOR HOUSING
4 - CENTER CONSOLE MODE DOORS
24 - 54
DISTRIBUTION - REAR
CS
BLOWER MOTOR (Continued)
(11) Install the front center floor console (Refer to
23
-
BODY/INTERIOR/CENTER
CONSOLE
-
INSTALLATION).
(12) Calibrate the A/C-heater control (Refer to 24 -
HEATING & AIR CONDITIONING/CONTROLS -
FRONT/A/C
HEATER
CONTROL
-
STANDARD
PROCEDURE -A/C-HEATER CONTROL CALIBRA-
TION).
FLOOR CONSOLE DUCTS
REMOVAL
4 PASSENGER SEATING
(1) Remove the front and rear center floor console
covers (Refer to 23 - BODY/INTERIOR/CENTER
CONSOLE - REMOVAL).
(2) Disconnect and isolate the negative battery
cable.
(3) Disconnect the body wire harness connectors
from the rear blower motor power module, floor con-
sole mode door actuator and the hands-free module
(Fig. 4).
(4) Remove the body wire harness bracket from
the console support bracket.
(5) Remove the gear shift assembly (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC
-
41TE/SHIFT MECHANISM - REMOVAL).
(6) If necessary, remove the two support brackets,
the rear blower motor housing and the hands-free
module from the floor console base and duct assem-
bly.
(7) Remove the nine nuts and two bolts that
secure the floor console base and duct assembly to
the center floor panel and remove the base and duct
assembly.
Fig. 4 Floor Console Base and Duct Assembly
1 - NUT (9)
2 - BOLT (2)
3 - SUPPORT BRACKET (FRONT)
4 - REAR BLOWER MOTOR HOUSING
5 - SUPPORT BRACKET (REAR)
6 - HANDS-FREE MODULE
7 - FLOOR CONSOLE BASE AND DUCT ASSEMBLY
8 - HANDS-FREE MODULE WIRE CONNECTOR
9 - MODE DOOR ACTUATOR
10 - POWER MODULE
11 - POWER MODULE WIRE CONNECTOR
12 - MODE DOOR ACTUATOR WIRE CONNECTOR
13 - WELD STUD (9)
14- FLOOR DISTRIBUTION DUCT
CS
DISTRIBUTION - REAR
24 - 55
BLOWER MOTOR (Continued)
5 PASSENGER SEATING
(1) Remove the two screws that secure the rear
floor outlet assembly to the rear of the center floor
console and remove the floor outlet assembly (Fig. 5).
(2) Remove the center floor console cover (Refer to
23
-
BODY/INTERIOR/CENTER
CONSOLE
-
REMOVAL).
(3) Remove the gear shift assembly (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC
-
41TE/SHIFT MECHANISM - REMOVAL).
(4) Remove the five nuts and two bolts that secure
the floor console base and duct assembly to the floor
panel and remove the base and duct assembly (Fig.
6).
INSTALLATION
4 PASSENGER SEATING
(1) Position the floor console base and duct assem-
bly into the vehicle.
(2) Install the nine nuts and two bolts that secure
the floor console base and duct assembly to the cen-
ter floor panel. Tighten the nuts and bolts to 5 N·m
(45 in. lbs.).
(3) If removed, install the two support brackets,
the rear blower motor housing and the hands-free
module. Tighten the screws to 2 N·m (17 in. lbs.).
(4) Install the gear shift assembly (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC
-
41TE/SHIFT MECHANISM - INSTALLATION).
(5) Install the body wire harness bracket onto the
console support bracket.
(6) Connect the body wire harness connectors to
the rear blower motor power module, floor console
mode door actuator and the hands-free module.
(7) Reconnect the negative battery cable.
(8) Install the front and rear center floor console
covers (Refer to 23 - BODY/INTERIOR/CENTER
CONSOLE - INSTALLATION).
5 PASSENGER SEATING
(1) Position the floor console base and duct assem-
bly into the vehicle.
(2) Install the five nuts and two bolts that secure
the floor console base and duct assembly to the cen-
ter floor panel. Tighten the nuts and bolts to 5 N·m
(45 in. lbs.).
(3) Install the gear shift assembly (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC
-
41TE/SHIFT MECHANISM - INSTALLATION).
(4) Install the center floor console cover (Refer to
23
-
BODY/INTERIOR/CENTER
CONSOLE
-
INSTALLATION).
(5) Install the rear floor outlet assembly onto the
rear of the center floor console.
(6) Install the two screws that secure the rear floor
outlet assembly to the center floor console. Tighten
the screws to 2 N·m (17 in. lbs.).
Fig. 5 Rear Floor Outlet Assembly
1 - CENTER FLOOR CONSOLE
2 - REAR FLOOR OUTLET ASSEMBLY
3 - SCREW (2)
Fig. 6 Floor Console Base and Duct Assembly
1 - NUT (5)
2 - BOLT (2)
3 - BASE AND DUCT ASSEMBLY
4 - CENTER FLOOR PANEL
24 - 56
DISTRIBUTION - REAR
CS
FLOOR CONSOLE DUCTS (Continued)
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