Chrysler 300M 2002 Service Manual page 1656

LH
BLEND DOOR ACTUATOR (Continued)
(2) Remove the left and right underpanel silencer/
ducts.
(3) Remove the two screws from the actuator
which are accessible from the right side of the center
stack (Fig. 16).
Fig. 16 BLEND DOOR ACTUATOR LOCATION
1 - MODE DOOR ACTUATOR
2 - RECIRCULATION DOOR ACTUATOR
3 - EVAPORATOR TEMPERATURE SENSOR
4 - BLOWER MOTOR RESISTOR BLOCK/POWER MODULE
5 - BLEND DOOR ACTUATOR
6 - HVAC PLENUM CONNECTOR
(4) Remove one screw from actuator on the left
side.
(5) Pull the actuator straight down from shaft and
disconnect the electrical connection. Upon removal,
note the shaft position of the actuator, because the
shaft on this motor is keyed. When installing a new
actuator, its shaft must be positioned in the same
location.
INSTALLATION
(1) Connect the wire harness connector to the
blend door actuator.
(2) Install the blend door actuator on the HVAC
housing, making sure its keyed shaft is positioned
properly.
(3) Install the three fastener screws and tighten to
2.2 N·m (20 in. lbs.).
(4) Install the left and right underpanel silencer/
ducts.
(5) Connect the negative battery cable remote termi-
nal to the remote battery post(Refer to 8 - ELECTRI-
CAL/BATTERY SYSTEM/CABLES - INSTALLATION).
MODE DOOR ACTUATOR
DESCRIPTION
The mode door actuator is an electric motor. It
mechanically positions the panel/bi-level door and the
floor/defrost door. This actuator contains a potentiom-
eter which allows the BCM (for both manual and
ATC systems) to know the exact position of the mode
doors at all times. The mode door actuator is not ser-
viceable and must be replaced if found to be defec-
tive.
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 AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Open hood and disconnect the negative battery
cable remote terminal from the remote battery post
(Refer to 8 - ELECTRICAL/BATTERY SYSTEM/CA-
BLES - REMOVAL).
(2) Remove the left and right underpanel ducts.
(3) Remove the floor console(Refer to 23 - BODY/
INTERIOR/FLOOR CONSOLE - REMOVAL). Refer
to Body for the procedures.
(4) Remove the center floor heat adaptor duct.
(5) Remove the rear seat heat forward adaptor
duct.
(6) Loosen the center support bracket and pry
rearward to gain access to the actuator.
(7) Remove the actuator retaining screws. Then
pull the actuator straight down. Upon removal, note
the shaft position of the actuator, because the shaft
on this motor is keyed. When installing a new actua-
tor, its shaft must be positioned in the same location
(Fig. 17).
(8) Remove the electrical connection on the actua-
tor.
CONTROLS 24 - 19