Question about 2004 Jeep Grand Cherokee

1 Answer

Hi an instrument panel are 3 knob - blower control / temperature control and mode selection and an mode selektion is - /recirculation /panel /bi-level/flor/defrost-floor/defrost/..in nite when i turn lights on /mode selection/ is dark .other two knobs -blower control and temperature control- working propertly

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  • bcerwas29 Sep 26, 2009

    thank you? for information little preblem always turn to big problem?

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  • Master
  • 1,714 Answers

There is a bulb behind there that will need to be changed. You have to gain access by removing the dash cover to get to it. It is not that easy to do, an 'experienced mechanic' or 'stereo installer' can do it quite easily. I would seek there advice or pay them to help you, it is worth it so you damage anything trying to get it apart.

Posted on Sep 26, 2009

  • Craig Butler
    Craig Butler Sep 26, 2009

    I think you want to keep it a little problem by getting the right help. It's easy to screw up the dash panel if you are not sure how it comes apart.

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How to replace an air inlet actuator on 2007 Pontiac Vibe 1.8 Liter Engine


Recirculation Control The recirculation control determines the air intake through the recirculation actuator. When the recirculation switch is pressed, a signal is sent from the switch to the recirculation actuator through the recirculation signal circuit. When the actuator receives the signal, the actuator moves into the recirculation mode. This circulates air from inside the vehicle instead of fresh air from the outside. Recirculation is available in any mode and can be selected with the blower motor in either the ON or OFF position.
Air Inlet Valve Actuator Replacement
Removal Procedure
  1. Remove the Instrument Panel (IP) compartment. Refer to Instrument Panel Compartment Replacement .
remove the glove box
Remove the connector (2). Remove the two screws (1) and the air inlet actuator (3) from the HVAC module.

Apr 18, 2016 | Pontiac Cars & Trucks

1 Answer

I have a 2011 Chevy Traverse that blows hot air.


Depending if it's manual temp control or auto.............

Here's manual

1 - Air Temperature Sensor - Upper Left
2 - Air Temperature Actuator - Left
3 - Air Temperature Sensor - Lower Right
4 - Air Temperature Actuator - Right
5 - Mode Actuator
6 - Air Temperature Sensor - Upper Right
7 - Blower Motor
8 - Blower Motor Control Module
9 - Evaporator Temperature Sensor
10 - Air Temperature Sensor - Lower Left




26128900-uuob5xk5qpmufdktz2iyu4qm-2-0.gif

Here's auto

1 - Mode Actuator
2 - Recirculation Actuator
3 - Blower Motor
4 - Blower Motor Control Module
5 - Air Temperature Actuator
6 - Evaporator Temperature Sensor



26128900-uuob5xk5qpmufdktz2iyu4qm-2-1.gif

Mar 13, 2016 | 2011 Chevrolet Traverse

1 Answer

Blinking AC button of Honda Civic 2003


HEATING AND AIR CONDITIONING
HONDA CIVIC 2001 - 2005
How to retrieve DTC:
The heater control panel has self-diagnosis function. To run the self-diagnosis function, do the following:
1.Turn the blower fan OFF.
2.Press and hold the recirculation control switch and the rear window defogger switch down.
3.Turn the ignition switch ON (ll).
4.Release both switches. The recirculation indicator and the rear window defogger indicators come on. The recirculation indicator goes off 3 seconds later and the A/C indicator comes on, then the self-diagnosis will begin. About 10 seconds later, the self-diagnosis will finish and the A/C indicator goes off.
- If any trouble is found, the recirculation indicator blinks the diagnostic trouble code (DTC) to indicate a faulty circuit or component.
- If the system is ok, the recirculation indicator stays off.

DTC TROUBLESHOOTING INDEX
DTC (Recirculation indication blinks) Detection Item Page
7An open in the air mix control motor circuit.21 - 16
8A short in the air mix control motor circuit.21 - 16
9A problem in the air mix control linkage, door, or motor.21 - 17
10An open or short in the mode control motor circuit.21 - 18
11A problem in the mode control linkage, doors, or motor.21 -19
12A problem in the blower motor circuit.21 - 20
13A problem in the EEPROM in the heater control panel;
(THE CONTROL PANEL MUST BE REPLACED).21 - 38
14An open in the evaporator temperature sensor circuit.21 - 23
15A short in the evaporator temperature sensor circuit.21 - 24
- In case of multiple problems, the recirculation indicator will indicate only the DTC with the least number of blinks.
- In case of an intermittent failure, the heater control panel will store the DTC until the ignition is turned off.

Mar 17, 2013 | 2003 Honda Civic

1 Answer

Temp light flashes when car start up. turn on heater and blows cold air on passenger side, and barely warm on driver side. No blowing air from defroster. Will work occasionally but usually it is this...


Air Door Actuators/Motors Removal & Installation Recirculation Actuator 1996 - 1999 1996 - 1999 HVAC Actuators gm-10-00-1840.gif

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 gm-10-00-1559.gif

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 gm-10-00-1840.gif

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 gm-10-00-1840.gif

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 gm-10-00-1840.gif

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 gm-10-00-1560.gif

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 gm-10-00-1560.gif

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 gm-10-00-1561.gif

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.
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Nov 03, 2010 | 1998 Buick LeSabre

1 Answer

The heat in my 2006 grand prix will not get hot. We replaced the thermostat and got nothing. So I got the radiator flush and force filled again. Still nothing. Temp of the motor still gets to the middle,...


Are the 2 tubes that go to the heater core getting hot? If so, then the blend door is not opening to allow heat to get to the cabin.

Possible vacuum motor problem, either disconnected, or the controller for the blend door is broken is likely problem.

Troubleshooting by Symptom Poor Heater System Performance CAUTION
Check all fluid levels and adjust as needed, before operating vehicle for extended periods at idle.
  1. Start the engine.
  2. Idle the engine until the thermostat opens (upper radiator hose will be hot) Is the engine at normal operating temperature (approx. 200° F)? If yes, go to the next step. If no, go to step 16.
  3. Set the mode selector to FLOOR mode.
  4. Set the heater control selector to the warmest temperature setting.
  5. Set the blower speed the lowest setting.
  6. Carefully feel the inlet and outlet heater hoses at the heater core. Is the inlet heater hose significantly hotter than the outlet heater hose? If yes, go to step 14. If no, go to the next step.
  7. Set the mode selector to PANEL mode.
  8. Select the maximum blower speed.
  9. Select the warmest temperature setting.
  10. Place a thermometer into the center I/P PANEL air outlet and affix a second thermometer to the heater core outlet heater hose.
  11. Record the temperature at the center I/P PANEL air outlet and at the heater core outlet heater hose. Are the two temperature readings about equal? If yes, go to the next step. If no, go to step 13.
  12. Inspect and repair the cowl, cowl area, recirculation door, and the HVAC evaporator/heater core case for cold air leaks. Repair any problems found, go to step 17.
  13. Inspect the temperature door operation. Repair any problems found, go to step 17.
  14. Turn OFF the engine. Back-flush the heater core. Start the engine. Select the FLOOR mode and the lowest blower speed. Select the warmest temperature setting. Feel the temperature of the inlet and outlet heater hoses at the heater core. Is the inlet heater hose feel significantly hotter than the outlet heater hose? If yes, go to the next step. If no, go to step 17.
  15. Replace the heater core. When the repair is completed, go to step 17.
  16. Check for low engine temperature problems, Repair or replace as needed, go to step 17.
  17. Operate the system in order to verify the repair. If the system operates properly, the repair is complete. If the heater still does not work properly, repeat the entire procedure.
Air Door Actuators/Motors Removal & Installation Recirculation Actuator To Remove:
  1. Remove the right lower instrument panel (I/P) insulator.
  2. Remove the glove box assembly. Recirculation actuator (Typical) gm-10-00-3695.gif

  3. Remove the mounting screws and recirculation actuator from the HVAC module assembly.
  4. Disconnect the recirculation actuator harness connector.
To Install:
  1. Align the recirculation actuator slots with the flats on the actuator door shaft.
  2. Install and secure the recirculation actuator on the HVAC module assembly with the mounting screws.
  3. Connect the recirculation actuator harness connector.
  4. Install the glove box assembly.
  5. Install the right lower I/P insulator.
  6. Calibrate the recirculation actuator.
Mode Actuator To Remove:
  1. Remove the right lower instrument panel (I/P) insulator.
  2. Remove the glove box assembly. Mode actuator gm-10-00-4356.gif

  3. Remove the mounting screws and mode actuator from the HVAC module assembly.
  4. Disconnect the mode actuator harness connector.
To Install:
  1. Align the mode actuator slots with the flats on the actuator door shaft.
  2. Install and secure the mode actuator on the HVAC module assembly with the mounting screws.
  3. Connect the mode actuator harness connector.
  4. Install the glove box assembly.
  5. Install the right lower I/P insulator.
  6. Calibrate the mode actuator.
Air Temperature Actuator Right Side To Remove:
  1. Remove the right lower instrument panel (I/P) insulator.
  2. Remove the glove box assembly. Air temperature actuator (right side) gm-10-00-4356.gif

  3. Remove the mounting screws and right air temperature actuator from the HVAC module assembly.
  4. Disconnect the right air temperature actuator harness connector.
To Install:
  1. Align the right air temperature actuator slots with the flats on the actuator door shaft.
  2. Install and secure the right air temperature actuator on the HVAC module assembly with the mounting screws.
  3. Connect the right air temperature actuator harness connector.
  4. Install the glove box assembly.
  5. Install the right lower I/P insulator.
  6. Calibrate the mode actuator.
Left Side To Remove:
  1. Remove the left lower instrument panel (I/P) insulator. Air temperature actuator (left side) gm-10-00-4357.gif

  2. Remove the mounting screws and left air temperature actuator from the HVAC module assembly.
  3. Disconnect the left air temperature actuator harness connector.
To Install:
  1. Align the left air temperature actuator slots with the flats on the actuator door shaft.
  2. Install and secure the left air temperature actuator on the HVAC module assembly with the mounting screws.
  3. Connect the left air temperature actuator harness connector.
  4. Install the left lower I/P insulator.
  5. Calibrate the mode actuator.

Oct 18, 2010 | 2006 Pontiac Grand Prix

1 Answer

Ac blowing heat on side and air on the other side.


Air Door Actuators Removal & Installation Console Mode To Remove:
  1. Remove the center console from the vehicle.
  2. Detach the air outlet duct from the center console.
  3. Disconnect the console mode actuator connector.
  4. Detach the console mode actuator from the center console.
To Install:
  1. Attach the console mode actuator to the center console. Torque the screws to 17 in-lb (1.9 Nm).
  2. Connect the console mode actuator connector.
  3. Attach the air outlet duct to the center console. Torque the screw to 17 in-lb (1.9 Nm).
  4. Install the center console into the vehicle.
Left Side Air Temperature To Remove:
  1. Remove the instrument panel carrier from the instrument panel.
  2. Disconnect the left side air temperature actuator connector. HVAC control module - left side gm-10-00-1844.gif

  3. Detach the left side air temperature actuator from the HVAC module.
To Install:
  1. Attach the left side air temperature actuator to the HVAC module. Torque the screw to 17 in-lb (1.9 Nm).
  2. Connect the left side air temperature actuator connector.
  3. Install the instrument panel carrier onto the instrument panel.
  4. Recalibrate the left side air temperature actuator.
Right Side Air Temperature To Remove:
  1. Remove the instrument panel carrier from the instrument panel.
  2. Disconnect the right side air temperature actuator connector.
  3. Detach the right side air temperature actuator from the HVAC module.
To Install:
  1. Attach the right side air temperature actuator to the HVAC module. Torque the screw to 17 in-lb (1.9 Nm).
  2. Connect the left side air temperature actuator connector.
  3. Install the instrument panel carrier onto the instrument panel.
  4. Recalibrate the right side air temperature actuator.
Mode To Remove:
  1. Remove the left floor duct from under the instrument panel (I/P).
  2. Disconnect the mode actuator connector. HVAC control module - left side gm-10-00-1844.gif

  3. Detach the mode actuator from the HVAC module.
To Install:
  1. If installing a new mode actuator, move the mode door to the middle position.
  2. Attach the mode actuator to the HVAC module. Torque the screw to 17 in-lb (1.9 Nm).
  3. Connect the mode actuator connector.
  4. Install the left floor duct under the instrument panel (I/P).
  5. Recalibrate the mode actuator.
Defrost Valve To Remove:
  1. Remove the instrument panel carrier from the instrument panel.
  2. Disconnect the defrost valve actuator connector. HVAC control module - left side gm-10-00-1844.gif

  3. Detach the defrost valve actuator from the HVAC module.
To Install:
  1. Attach the defrost valve actuator to the HVAC module. Torque the screw to 17 in-lb (1.9 Nm).
  2. Connect the defrost valve actuator connector.
  3. Install the instrument panel carrier onto the instrument panel.
Recirculation To Remove:
  1. Remove the HVAC module from the instrument panel.
  2. Detach the air inlet assembly from the HVAC module. Recirculation actuator removal and installation gm-10-00-1845.gif

  3. Disconnect the recirculation actuator connector.
  4. Detach the recirculation actuator from the HVAC module.
To Install:
  1. Attach the recirculation actuator to the HVAC module. Torque the screw to 17 in-lb (1.9 Nm).
  2. Attach the air inlet assembly to the HVAC module. Torque the screw to 17 in-lb (1.9 Nm).
  3. Connect the recirculation actuator connector.
  4. Install the HVAC module into the instrument panel.
  5. Recalibrate the recirculation actuator.
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Aug 17, 2010 | 2004 GMC Envoy

2 Answers

I changed the battery on 2006 Trailblazer SS. Now I can only get AC from my windshield and floor vents. Nothing from the dash vents. Also the temp control only gives coldest temp. I have checked fuses...


once you disconnect the battery your body control module loses power and memory you have to get some one with a scanner with reprogramming capabilities and have the computers reset ,dealer?

Aug 05, 2010 | Chevrolet TrailBlazer Cars & Trucks

1 Answer

How to install ac mode actuator on 2003 gmc sierra


prev.gif next.gif Air Door Actuators Removal & Installation Air Temperature Actuator Air Temperature Actuator Replacement gm-10-00-559.gif

To Remove:
CAUTION
Do not apply power to the actuator when it is removed from the HVAC module.
  1. Remove the instrument panel hush panel.
  2. Disconnect the connector from the air temperature actuator.
  3. Remove the air temperature actuator mounting screws.
  4. Remove the actuator from the HVAC assembly.
To Install:
  1. Position the air temperature actuator on the HVAC assembly.
  2. Install the actuator mounting screws.
  3. Install the electrical connect to the air temperature actuator.
  4. Install the instrument panel hush panel.
Right Side Air Temperature Actuator (2003-2007) Right Air Temperature Actuator Replacement gm-10-00-560.gif

To Remove:
CAUTION
Do not apply power to the actuator when it is removed from the HVAC module.
  1. Remove the instrument panel carrier.
  2. Disconnect the connector from the right air temperature actuator.
  3. Remove the actuator mounting screws.
  4. Remove the right air temperature actuator.
To Install:
  1. Position the right air temperature actuator on the HVAC assembly.
  2. Install the actuator mounting screws.
  3. Connect the electrical connector to the actuator.
  4. Install the I/P carrier.
  5. Calibrate the actuator.
Left Side Air Temperature Actuator (2003-2007) Left Air Temperature Actuator Replacement gm-10-00-561.gif

To Remove:
CAUTION
Do not apply power to the actuator when it is removed from the HVAC module.
  1. Remove the I/P insulator panel.
  2. Disconnect the connector from the left air temperature actuator.
  3. Remove the actuator mounting screws.
  4. Remove the left air temperature actuator.
To Install:
  1. Position the left air temperature actuator on the HVAC assembly.
  2. Install the actuator mounting screws.
  3. Connect the electrical connector to the actuator.
  4. Install the I/P insulator panel.
  5. Calibrate the actuator.
Mode Actuator Mode Actuator Replacement gm-10-00-562.gif

To Remove:
CAUTION
Do not apply power to the actuator when it is removed from the HVAC module.
  1. Remove the floor air outlet from the floor duct.
  2. Remove the center console and center console duct (if equipped).
  3. Disconnect the electrical connection at the mode actuator.
  4. Remove the mode actuator mounting screws from the HVAC module.
  5. Remove the mode actuator with the actuator cam attached.
To Install:
  1. Position the mode actuator with the actuator cam to the HVAC module.
    • Align the heater/defroster valve lever with the cam slot
    • Align the A/C valve lever with the cam
  2. Install the mode actuator mounting screws.
  3. Connect the mode actuator electrical connection.
  4. Install the center console duct and the center console (if equipped).
  5. Install the floor air outlet duct extension to the floor air duct.
  6. Calibrate the actuator.
Air Inlet Actuator/Recirculation Actuator Delphi Recirculation Actuator Replacement (Delphi) gm-10-00-564.gif

To Remove:
CAUTION
Do not apply power to the actuator when it is removed from the HVAC module.
  1. Remove the instrument panel upper trim panel.
  2. Remove the instrument panel lower trim panel and glove box assembly.
  3. Remove the passenger side air bag.
  4. Disconnect the connector from the recirculation actuator.
  5. Remove the recirculation actuator mounting screws.
  6. Remove the recirculation actuator from the HVAC assembly.
To Install:
  1. Position the recirculation actuator on the HVAC assembly.
  2. Install the recirculation actuator mounting screws.
  3. Connect the electrical connector to the recirculation actuator.
  4. Install the passenger side air bag.
  5. Install the instrument panel lower trim panel and the glove box assembly.
  6. Install the instrument panel upper trim panel.
  7. Calibrate the actuator.
Visteon Recirculation Actuator Replacement (Visteon) gm-10-00-566.gif

To Remove:
CAUTION
Do not apply power to the actuator when it is removed from the HVAC module.
  1. Remove the HVAC module assembly.
  2. Remove the evaporator core cover from the HVAC module.
  3. Remove the recirculation actuator from the HVAC module assembly.
To Install:
  1. Position the recirculation actuator on the HVAC assembly.
  2. Install the recirculation actuator mounting screws.
  3. Install the evaporator core cover to the HVAC module.
  4. Install the HVAC module assembly.
  5. Calibrate the actuator.
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Jul 09, 2010 | 2000 GMC New Sierra 1500

2 Answers

I have a mercury mountaineer 2003 V6. It has a problem of making sound repeated when I want to have heat turned on. No sound when the dashboard A.C/Heat stays at AC level, which is the zero? level. The...


When the engine is cold,check the coolant level.

Make sure it's on max.

===

A coolant system should be flush every two years.

===

If you did a coolant flush recently then air pocket can be the cause of the un-even heating problem.

The DIY method is to drive you car onto a ramp or a steep hill.

Iet the engine cool off and top off the coolant tank.

Set MAX heat + MAX fan

Let the engine ran for 20 minutes wih the cap off and the trap air will escape from the coolant reserve tank,

Check coolant level and top off coolant when the engine cools down.



A shop will charge $75+ for this but using an air operated excavate tool!

========

A car with over 90K miles may experience linkage problem to the heater control valve.

The heater control valve (near the firewall) may be stick over time.

Open the hood and move the heater to max and min. Back and forth.

Clean and lube the linkage with WD-40 to free the heater control valve.

If it's a vacuum type heater control valve then cash for leaky vac. hoses.


=======
Move the fan switch back and forth to re-new the electrical conductors.

Pass a vacuum over the control panel to prevent dust build up behind the console.

Sep 13, 2009 | 2003 Mercury Mountaineer

2 Answers

2004 Ford Expedition rear floor cool/heat


03f81ff.gif
Item Part Number Description 1 — Air inlet door 2 — Temperature blend door 3 — Headliner airflow 4 — Auxiliary mode door 5 — Floor airflow 6 18476 Heater core 7 19860 Evaporator core 8 19805 Blower motor
The auxiliary A/C and heating system has the following features:
  • The auxiliary A/C and heating system is functional whenever the instrument panel mounted A/C control is in any position except OFF.
  • The auxiliary blower motor recirculates the air inside the vehicle. Outside air is not available to the auxiliary system.
  • Air is cooled and dehumidified by the auxiliary A/C evaporator core only if the instrument panel mounted A/C control is adjusted to a position that requires A/C compressor operation.
  • The temperature blend door and the auxiliary mode door are controlled by electric actuator motors.
  • Movement of the auxiliary temperature control between COOL and WARM causes a corresponding movement of the temperature blend door to mix air flowing through and around the auxiliary heater core.
  • Movement of the auxiliary mode control between PANEL and FLOOR causes a corresponding movement of the auxiliary mode door to direct air flow between the panel (headliner) registers and the floor duct.
---------------------------------------
I would say the auxiliary mode door (#4) electric motor is not wokring.

=============================================
Auxiliary Blend Door Actuator —Air Distribution Removal and Installation
  1. Remove the RH quarter trim panel cup holder and access panel.
  1. Remove the screws.
  1. Disconnect the blend door actuator electrical connector.
  1. To install, reverse the removal procedure.

Jan 14, 2009 | 2004 Ford Expedition

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