A/C VENT MODE DOOR MAKES KEEPS SNAPPING IN FULL A/C (PANEL) MODE

The heat/vent blend door that is located inside of the HVAC system behind dash..Rarely it is the control however it could be....Some of the vent door issues are recalls on certain vehicles."Also Blend vent door actuators that operate the doors can become inoperable...If it is the door inside the HVAC it will probably take about 8 hours to repair...Most vent doors either stick shut and or break..as well as actuators....Only a Dealer Scanner can tell exactly where the problem is.....

as always, check fuses first.
then scan this car, it will show, mode motor errors. huh?

those are damper. in the heater box.
there are 2 fail points (besides wires)
the control is bad,
or the damper is failing.
The FSM covers this 100%
or at alldata.com

what tech does is makes sure the control sends the signal
the damper (there are 3 types used on all cars)
if its damper motor , the FSM shows the damper tests.
which are unique to Toyota. and a spec, year, 2006.
the mode damper is failing.
the only question is why,
the answer is simple tests. detailed in all FSM of all cars made.

here ill look your up to see which of the 3 type class it is.

your car has a ACC brain, a/c controller, this controller runs the show.
it gets your inputs from the defrost switch and then sends signals
to the mode motor.

FSM quote

Air Vent Mode Control Servo Motor ControlWhen the mode select SW is pushed, the ECU in the A/C control assembly activates the air vent mode control servo motor.
The servo motor rotates to the position (FACE, BI-LEVEL, FOOT, FOOT/DEF, DEF) selected by using the mode select SW,
and moves the damper.
In auto mode, A/C control assembly controls the damper to move to the best position for the conditions without operating the
mode select SW.

I SAY SCAN iT
using any scan tool that suports full Toyota. full scans including
extended factory codes..
i say buy one.
here is one.
http://www.amazon.com/gp/product/B001QIUGVI/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1

owning complex cars, and DIY, you need a real scan tool
or just guess.

make him do it again... ?

Usually this is a problem with the blend doors under the dash. You either have a vac leak, a dead motor, or a faulty door.
The control opens and closes the doors to direct air thru the heater core and evaporator core along with directing air thru the vents.
When a problem occurs, the default position is the defrost vents to make sure the windshield remains clear.
You can do an internet search for "repair durango blend door" for more info.

The HVAC mode selections on these are controlled by an electric stepper motor that receives commands from the BCM (body control module). The BCM decides where the air door should be by looking at where the dash control input is.
Each mode selected has a different resistance level. From low resistance to high resistance: Panel, Bi-Level, Floor, Mix and Defrost, with Defrost as the highest resistance (~100K ohms). A high resistance or open circuit would probably default the system to defrost no matter what position the mode control was set to.
If the control is dirty or there is a connection issue, this could cause this problem. Does playing with the control make any difference?
The BCM can store fault codes with HVAC releated information. The system can be reset and recalibrated with a battery disconnect, this will also erase any fault codes.
I would start by looking at the dash mode control.

Good luck, i hope this helps.

The LH models (LHS, Concorde, New Yorker, Intrepid, Vision) do have self-diagnostic capability with the standard type heater controls. I don't know about the Sebring heater controls (my '95 manual doesn't mention it) but if you have the various controlknobs/buttons that I will describe you could give it a try.
There is a rear window defogger that is initiated by a push button with an LED light. That light is the readout, by its blinking. To begin the diagnostic mode, run the vehicle at idle with the controls set as follows: the blower speed knob should be on any position other than OFF, the temperature knob should be set in full COOL, and the mode knob should be set on Defrost mode.
To enter the diagnostic mode, press the defogger switch in for five seconds, until it begins to blink, then release it. It will continue to blink for about 30 seconds while it calibrates. If it goes out, the calibration is OK and you can skip 3 paragraphs to "Position...mix mode" below.
If the light stayed on, switch the mode knob to the MIX (defroster-floor) position. If the light stays on there is a problem with the control head unit.
Switch the mode knob to the FLOOR position, if the light stays on, it indicates a problem in the blend door or the blend door actuator wiring.
Move the knob to the Bi-level (panel-floor) position where a continuous light indicates a problem with mode actuator or circuit.
Position the knob in the MIX mode. The LED light should now flash twice then pause, and continue a two-flash sequence, indicating that the MIX mode is OK.
In the FLOOR mode the light should flash three times, meaning that the FLOOR mode is OK.
In the Bi-Level Mode, a four-flash sequence indicates that mode is OK.
In the PANEL mode the light should flash 5 times to indicate no problems there, and in the recirc-panel mode 6 times and seven times in the recirc Bi-level mode.
The temperature control can be checked by switching the mode knob to Defrost and rotating the temperture knob. If the temperature contol is OK, the light will flash faster the more you turn the temperature knob up, until the light goes out at the hottest setting.
Switch the knob between Panel and Recirc-Panel and watch the recirc door (unit under the dash). Proper operation means that circuit and components are OK.
To get out of the self-diagnostic mode, turn off the blower or push the air conditioning button once.
If this doesn't seem to apply to your control head or you get no response from an LED light for the rear defroster, then the Sebring may not have this capability. Please let me know your results if any

Air Door Actuators/Motors Removal & Installation Recirculation Actuator 1996 - 1999 1996 - 1999 HVAC Actuators

To Remove:

1. Remove the left sound insulator panel.
2. Disconnect the vacuum hose from the recirculation actuator.
3. Remove the recirculation actuator from the valve.

To Install:

1. Connect the recirculation actuator to the valve.
2. Clip the recirculation actuator to the air inlet.
3. Connect the vacuum hose to the recirculation actuator.
4. Install the left sound insulator panel.

2000 - 2005 2000 - 2005 Recirculation Actuator

To Remove:

1. Remove the instrument panel compartment.
2. Remove the right sound insulator.
3. Remove the dash integration module from the bracket.
4. Remove the 2 dash integration module bracket fasteners and position the bracket to gain access to the recirculation actuator.
5. Disconnect the electrical connector from the recirculation actuator.
6. Remove the recirculation actuator.

To Install:

1. Install the recirculation actuator and torque the fasteners to 12 in-lbs (1.4 Nm).
2. Connect the electrical connector to the recirculation actuator.
3. Install the dash integration module bracket and torque the fasteners to 12 in-lbs (1.4 Nm).
4. Install the dash integration module into the bracket.
5. Install the right sound insulator.
6. Install the instrument panel compartment.
7. Recalibrate the actuator.

Defroster Valve Actuator 1996 - 1999 1996 - 1999 HVAC Actuators

To Remove:

1. Remove the air distributor assembly.
2. Unclip the defroster valve actuator from the air inlet.
3. Disconnect the defroster valve actuator from the valve.

To Install:

1. Disconnect the defroster valve actuator from the valve.
2. Clip the defroster valve actuator from the air inlet.
3. Install the air distributor assembly.

Heater/Bi-Level Actuator 1996 - 1999 1996 - 1999 HVAC Actuators

To Remove:

1. Remove the air distributor assembly.
2. Remove the clip and the screws that fasten the 2 halves of the air distributor assembly and separate the air distributor assembly.
3. Unclip and disconnect the heater/bi-level actuator from the valve.

To Install:

1. Connect and clip the heater/bi-level actuator to the valve.
2. Fasten the 2 halves of the air distributor assembly together and torque the fasteners to 13 in-lbs (1.5 Nm).
3. Install the air distributor assembly.

Temperature Actuator 1996 - 1999 1996 - 1999 HVAC Actuators

To Remove:

1. Remove the instrument panel assembly.
2. By snapping the rod out of the valve, remove the temperature valve link rod from the temperature valve.
3. Disconnect the electrical connector from the temperature actuator.
4. Remove the temperature actuator.

To Install:

1. Install the temperature actuator and torque the fasteners to 12 in-lbs (1.4 Nm).
2. Connect the electrical connector to the temperature actuator.
3. Start the vehicle.
4. Set the fan to position to high.
5. Set the temperature to full hot.
6. Allow a minimum of 45 seconds for the temperature valve actuator to move to the full hot position.
7. Move the temperature valve to the full hot position.
8. Snap the temperature valve link rod into the temperature valve.
9. Install the instrument panel assembly.

Mode Actuator 2000 - 2005 Mode and Left Air Temperature Actuator

To Remove:

1. Remove the left side sound insulator panel.
2. Remove the knee bolster.
3. Remove the instrument panel cluster. (Automatic HVAC)
4. Disconnect the electrical connector from the left air temperature actuator. (Automatic HVAC)
5. Remove the left air temperature actuator. (Automatic HVAC)
6. Disconnect the electrical connector from the mode actuator.
7. Remove the mode actuator.

To Install:

1. Align the mode door levers with the cam slots.
2. Install the mode actuator and torque the fasteners to 12 in-lbs (1.4 Nm).
3. Connect the electrical connector to the mode actuator.
4. Install the left air temperature actuator and torque the fasteners to 12 in-lbs (1.4 Nm). (Automatic HVAC)
5. Connect the electrical connector to the left air temperature actuator. (Automatic HVAC)
6. Install the instrument panel cluster. (Automatic HVAC)
7. Install the knee bolster.
8. Install the left side sound insulator panel.
9. Recalibrate the actuators.

Left Air Temperature Actuator 2000 - 2005 Mode and Left Air Temperature Actuator

To Remove:

1. Remove the left side sound insulator panel.
2. Remove the knee bolster.
3. Remove the instrument panel cluster.
4. Disconnect the electrical connector from the left air temperature actuator.
5. Remove the left air temperature actuator retaining screws.
6. Remove the left air temperature actuator.

To Install:

1. Install the left air temperature actuator and torque the fasteners to 12 in-lbs (1.4 Nm).
2. Connect the electrical connector to the left air temperature actuator.
3. Install the instrument panel cluster.
4. Install the knee bolster.
5. Install the left side sound insulator panel.
6. Recalibrate the actuators.

Air temperature Actuator (Manual), Right Air temperature Actuator (Automatic) 2000 - 2005 Right Air Temperature Actuator

To Remove:

1. Remove the instrument panel compartment.
2. Disconnect the electrical connector from the air temperature actuator.
3. Remove the right air temperature actuator.

To Install:

1. Install the air temperature actuator and torque the fasteners to 12 in-lbs (1.4 Nm).
2. Connect the electrical connector to the air temperature actuator.
3. Install the instrument panel compartment.
4. Recalibrate the actuators.

There is a blend door problem.

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HEATING AND AIR CONDITIONING Refer to Section 1 for discharging and charging of the air conditioning system. The heating system provides heating, ventilation and defrosting for the windshield and side windows. The heater core is a heat exchanger supplied with coolant from the engine cooling system. Temperature is controlled by the temperature valve which moves an air door that directs air flow through the heater core for more heat or bypasses the heater core for less heat. Vacuum actuators control the mode doors which direct air flow to the outlet ducts. The mode selector on the control panel directs engine vacuum to the actuators. The position of the mode doors determines whether air flows from the floor, panel, defrost or panel and defrost ducts (bi-level mode).

The blend door actuated by solenoids may not be working correctly causing a/c cool air to come out of the windshield vents, rather than the regular front vents.

Defroster Valve Actuator 1996 – 1999 1996 – 1999 HVAC Actuators

To Remove:

1. Remove the air distributor assembly.
2. Unclip the defroster valve actuator from the air inlet.
3. Disconnect the defroster valve actuator from the valve.

To Install:

1. Disconnect the defroster valve actuator from the valve.
2. Clip the defroster valve actuator from the air inlet.
3. Install the air distributor assembly.

Heater/Bi-Level Actuator 1996 – 1999 1996 – 1999 HVAC Actuators

To Remove:

1. Remove the air distributor assembly.
2. Remove the clip and the screws that fasten the 2 halves of the air distributor assembly and separate the air distributor assembly.
3. Unclip and disconnect the heater/bi-level actuator from the valve.

To Install:

1. Connect and clip the heater/bi-level actuator to the valve.
2. Fasten the 2 halves of the air distributor assembly together and torque the fasteners to 13 in-lbs (1.5 Nm).
3. Install the air distributor assembly.

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Removal & Installation Recirculation Actuator 1996 – 1999 1996 – 1999 HVAC Actuators

To Remove:

1. Remove the left sound insulator panel.
2. Disconnect the vacuum hose from the recirculation actuator.
3. Remove the recirculation actuator from the valve.

To Install:

1. Connect the recirculation actuator to the valve.
2. Clip the recirculation actuator to the air inlet.
3. Connect the vacuum hose to the recirculation actuator.
4. Install the left sound insulator panel.