ACTUATOR-MODE DOOR
DESCRIPTION
The heating-A/C system uses two vacuum operated
mode door actuators (1) to control the movement of
the mode-air doors within the HVAC housing.
When vacuum is supplied by the A/C-heater control to
the vacuum connector (3) on one side of the defrost/
floor actuator or the panel door actuator, the actuator
rod is pulled into the actuator, which moves the mode
door lever and mode-air door in one direction. When
vacuum is supplied by the A/C-heater control to the
other side of the actuator, the rod moves the mode-air
door in the other direction.
The mode door actuators are retained to the HVAC
housing by an integral mounting provision (2) and can
be accessed for service from under the driver side of
the instrument panel.
The mode door actuators cannot be adjusted or
repaired and, if faulty or damaged, they must be
replaced.
REMOVAL
WARNING: On vehicles equipped with airbags, disable the airbag system before attempting any steering
wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the
battery negative (ground) cable, then wait two minutes for the airbag system capacitor to discharge before
performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to
take the proper precautions could result in an accidental airbag deployment and possible personal injury or
death.
1. Disconnect and isolate the negative battery cable.
2. Remove the knee blocker from the driver side of
the instrument panel (Refer to 23 - BODY/INSTRU-
MENT PANEL/BLOCKER-KNEE - REMOVAL).
3. Disconnect the vacuum harness connectors (1 and
3) from the panel door actuator (2) or the floor/de-
frost door actuator (4) located on the driver side of
the HVAC housing (5) as required.
24 - 14
CONTROLS
KJ