Question about 2000 Mercury Grand Marquis

1 Answer

Code 24 and 25 (blend door actuator)are showing up

Code 24 and 25 (blend door actuator) are showing up on the electronic A/C display. I reset this code over and over by hitting the floor and off buttons simutaneously then automatic, this was letting it work temporaraly but now I think its totally broke. I read online that you can access this blend door actuator through the instrument panel, but other forums say you have to pull the dash completly out. How hard of a job is this, and should a medium skilled mechanical person like myself attempt it.

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  • Mercury Master
  • 4,369 Answers

Yes, IP must come out.

Actuator —Electronic Blend Door Removal

  1. Disconnect the battery ground cable. For additional information, refer to Section 414-01 .
  1. Remove the instrument panel. For additional information, refer to Section 501-12 .
  1. Disconnect the connector
But, you sure it's the blend door actuator?

Electronic Automatic Temperature Control Module Self-Test
  • The EATC module self-test will not detect concerns associated with data link messages like engine coolant temperature or vehicle speed signals. A scan tool must be used to retrieve these concerns.
  • The EATC module self-test will detect concerns in the system control functions and will display hard diagnostic trouble codes (DTCs) in addition to intermittent diagnostic trouble codes for concerns that occur during system operation. The vehicle interior temperature should be between 4°-32°C (40-90°F) when carrying out the self-test. If the temperatures are not within the specified ranges, false in-car temperature sensor DTCs will be displayed.
  • The self-test can be initiated at any time. Normal operation of the system stops when the self-test is activated.
  • To enter the self-test, press the OFF and FLOOR buttons simultaneously and then press the AUTOMATIC button within two seconds. The display will show a pulse tracer going around the center of the display window. The test may run as long as 30 seconds. Record all DTCs displayed.
  • If any DTCs appear during the self-test, follow the diagnostics procedure given under ACTION for each DTC given.
  • If a condition exists but no DTCs appear during the self-test, refer to the Symptom Chart Condition: The EATC System Is Inoperative, Intermittent or Improper Operation.
  • To exit self-test and retain all intermittent DTCs, push the blue (cooler) button. The control will exit self-test, retain all intermittent diagnostic trouble codes and then turn OFF (display blank).
  • To exit the self-test and clear all DTCs, press the DEFROST button. The vacuum fluorescent display window will show 888 and all function symbols for one second. Then, the EATC control assembly will turn OFF (display blank) and all DTCs will be cleared.
  • Always exit the self-test before powering the system down (system turned OFF).
  • Intermittent DTCs will be deleted after 80 ignition switch ON cycles after the intermittent condition occurs.
Connect a fused jumper wire between EATC module C228 pin 26, circuit 246 (VT) and EATC module C227 pin 2, circuit 54 (LG/YE). Connect a second fused jumper wire between EATC module C228 pin 13, circuit 245 (BN/LG) and EATC module C227 pin 3, circuit 57 (BK).
  • Does the actuator motor move in the clockwise direction?
Code 24 and 25 (blend door actuator)are showing up - sya~us~en~file=arrow.gif~gen~ref.gifYes GO to A2 .
sya~us~en~file=arrow.gif~gen~ref.gifNo GO to A3 .

Posted on Jul 02, 2009

  • boomdidit
    boomdidit May 26, 2014

    Its alot of work, if that is even the problem I switched it and that still is not the problem. It is dead center above the radio but futher back in the dash and at the very top of the dash. Be ready to have tour fore arms scared up. two of the screws are very hard to get to and your gonna need a 8mm wrench that works like a socket wrench. If you dont have this dont even do it. I am still having the same issue after changing two of them. so, I am lost!

  • boomdidit
    boomdidit May 26, 2014

    Pulling the dash is what you have to do! Anyone have any idea on what could be messed on my 2000 Marquis? 24 and 25 pops up but actuator does not fix issue. I even changed the blower motor resistor on the hood! and still all heat no ac. cold on pipes under hood and was pure ice when I had the dash down and moved the lever to cold from hot.!

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: blend door actuator needs replacing does the

no it doesnt ... check out heatertreaters.net if you have to replace the blend doors .... but the actuator is directly behind the glove box...remove the glove box take out 3 screws and remove actuator and replace.....waa laa

Posted on Nov 25, 2009

  • 236 Answers

SOURCE: Where is the blend door actuator located? Is it a

buried in the dash, about an 8 hour job.

Posted on Oct 13, 2009

danielson57
  • 108 Answers

SOURCE: 1997 olds Lss Heard clicking noise for 25 minutes.

something fall down through vent? or heater fan sucked something through intake? one time i had plastic bag on pass. floor and heater motor sucked it in.

Posted on Dec 07, 2009

  • 5 Answers

SOURCE: how to replace blend door actuator in a ford

I recently did mine, I hear you can do it without taking the entire dash apart but I had no luck with it myself. I have to get ready for work but, on mine it was located down and to the left of the radio. its a white box...are you hearing a clicking noise or something? I had to roll the entire dash back and it was still a major pain getting it out.

Posted on Dec 07, 2009

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When heat is on it blow hot ondrivers side and cold on ppassenger side.


Do you hear any clicking sounds coming from behind the instrument panel ? Electrically controlled actuators move temp . blend doors and they wear out .Plastic gears etc..
Electronic Automatic Temperature Control System
The electronic automatic temperature control (EATC) system operation is determined by the settings on the EATC module. The EATC system automatically maintains a selected temperature for vehicle interior comfort, including capabilities to maintain separate temperature settings for the driver and front passenger. The electronic temperature control capabilities are achieved by splitting the air distribution system internally and utilizing 2 individually operated temperature blend doors. The EATC system is composed of the EATC module, automatic temperature control (ATC) solenoid and manifold, blower motor speed control, 4 vacuum control motors, 2 temperature blend door actuators, in-car temperature sensor, ambient air temperature sensor and solar amplifier (sunload sensor) to control the various functions. Do you know about DTC'S - diagnostic trouble codes ?

The electronic automatic temperature control (EATC) system must be diagnosed by first retrieving any DTCs, if present.
  • An on-demand (hard fault) DTC indicates that the fault is currently present. An on-demand DTC suggests a wiring fault, disconnected connector or component failure.
  • A continuous (intermittent) DTC alone (corresponding on-demand DTC is not present) indicates that the fault is an intermittent condition and may not be currently present. A continuous only DTC suggests a poor wiring connection, loose pin or terminal or intermittent component failure.
On-demand (hard fault) or continuous (intermittent fault) DTCs can be retrieved using a diagnostic tool. If using a diagnostic tool, refer to the diagnostic tool operating manual.
On-demand DTCs can also be retrieved by carrying out the Electronic Automatic Temperature Control Module On-Demand Self Test. To retrieve and/or clear continuous DTCs carry out the Electronic Automatic Temperature Control Module - Retrieve Continuous DTCs procedure. Always carry out the Electronic Automatic Temperature Control Module On-Demand Self Test before retrieving continuous DTCs.
If no DTCs are present, GO to Symptom Chart for the appropriate diagnostic action.

DTC EATC DTC Displayed Notes Description Action to Take B2266 2266 N/A LH Blend Door Failure or Short Go To Pinpoint Test A . B2267 2267 EATC Only RH Blend Door Failure or Short Go To Pinpoint Test A .
  • The dual temperature control is inoperative/does not operate correctly - Dual Zone EATC
  • Temperature blend door/actuator broken/binding
  • EATC module
  • CHECK the temperature blend doors/actuators for a binding or broken condition. If no condition is found, INSTALL a new EATC module. REFER to Section 412-01 . TEST the system for normal

Feb 05, 2017 | 2006 Mercury Mountaineer

1 Answer

How to replace the door blend actuator on 2009 lincoln mks


Right side or left ? Electronic Automatic Temperature Control or manual ? Temperature or mode door ?
Temperature Blend Door Actuator - LH Removal and Installation
NOTE: It is not required to install the new LH temperature blend door linkage parts included in the LH temperature blend door actuator service part kit if only the temperature blend door actuator requires replacement and the linkage parts are not broken or binding.
LH temperature blend door actuator and linkage
  1. Remove the 2 lower steering column opening cover bolts.
  1. Detach the lower steering column opening cover.
  1. Disconnect the in-vehicle temperature sensor aspirator hose and electrical connector.
  1. Position the instrument panel wire harness away from the LH temperature blend door actuator.
  1. Remove the 3 LH temperature blend door actuator screws.
  1. Disconnect the LH temperature blend door actuator electrical connector.
  1. Remove the LH temperature blend door actuator.
  1. Manually operate, and inspect the LH temperature blend door linkage for incorrect placement, binding or damage.
Temperature Blend Door Actuator - RH, Dual-Zone EATC Removal and Installation
NOTE: It is not required to install the new RH temperature blend door linkage parts included in the RH temperature blend door actuator service part kit if only the temperature blend door actuator requires replacement and the linkage parts are not broken or binding.
RH temperature blend door actuator and linkage
  1. Disconnect the glove compartment damper from the glove compartment.
  1. Remove the glove compartment.
  1. Remove the RH lower instrument panel insulator.
  1. Remove the RH lower floor console trim panel.
  1. Remove the 3 RH temperature blend door actuator screws.
  1. Disconnect the RH temperature blend door actuator electrical connector.
  1. Remove the RH temperature blend door actuator.
  1. Manually operate, and inspect the RH temperature blend door linkage for incorrect placement, binding or damage.
  2. Mode Door Actuator - Defrost/Panel/Floor Door
  3. Removal and Installation
    NOTE: The defrost/panel/floor mode door actuator can be accessed from below the driver side of the instrument panel.
    NOTE: It is not required to install the new defrost/panel/floor mode door linkage parts included in the defrost/panel/floor mode door actuator service part kit if only the mode door actuator requires replacement and the linkage parts are not broken or binding.
    Mode door actuator and linkage
    1. Remove the 3 defrost/panel/floor mode door actuator screws.
    1. Disconnect the defrost/panel/floor mode door actuator electrical connector.
    1. Remove the defrost/panel/floor mode door actuator.
    1. Manually operate, and inspect the defrost/panel/floor mode door linkage for incorrect placement or damage.
    Mode door actuator linkage only
    1. Remove the mode door linkage.
      1. Depress the tab and remove the panel door lever.
      1. Remove the floor/defrost door intermediate lever screw and floor/defrost door intermediate lever.
      1. Pull straight outward to remove the floor/defrost door lever.
    Mode door actuator and linkage
    1. NOTE: When installing the mode door actuator, make sure that the panel door lever and floor/defrost intermediate lever are correctly aligned with the mode door actuator cam.
      To install, reverse the removal procedure.

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1 Answer

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2001 chrysler town and country. A\C heat Blowers will not work when controlled my front main pannel. It is a auto temp controlled system. The rear blower will work but no heat when controlled by the rear...


Hi,
This may be similar to what I just fixed on an '00 dodge:
http://www.dodgeintrepid.net/showthread.php?t=89711

Accessing the Integrated Diagnostic System:

Procedure for Automatic Temp Control (ATC) equipped vehicles:

With the engine ON and the vehicle stopped set the temp to 75*F. Next hold down the Floor, Mix and Defrost buttons until the ATC display begins to flash. While the display is flashing, the system will run it's tests and calibrations.

When the display stops flashing, the tests and calibrations are complete.

The ATC display can only display one error code at a time. Any stored codes can be scrolled through by pressing the Panel mode button once for each code. DO NOT press any other button or you will have to start the test over. Note the codes and refer to the list below to determine what system is malfunctioning.

List of Climate Control DTCs:
23: Blend door actuator feedback failure (bad servo)
24: Mode door actuator feedback failure (bad servo)
25: Ambient temp sensor failure
26: ATC In Car thermister failure (ATC only, bad ATC head or ATC head disconnected while battery is connected)
27: ATC in car sensor failure (ATC only)
31: Recirculation door actuator stalled (stuck door or bad servo)
32: Blend door actuator stall failure (stuck door or bad servo)
33: Mode door actuator stall failure (stuck door or bad servo)
34: Engine temperature message not received (ATC only, bad ATC head or bus failure)
35: Evaporator sensor failure
36: ATC control communication failure (bad ATC head or bus failure)
37: Blend door actuator output shorted to battery (bad servo or wiring fault)
38: Blend door actuator output shorted to ground (bad servo or wiring fault)
39: Mode door actuator output shorted to battery (bad servo or wiring fault)
40: Mode door actuator output shorted to ground (bad servo or wiring fault)
41: Recirculation door actuator output shorted to battery (bad servo or wiring fault)
42: Recirculation door actuator output shorted to ground (bad servo or wiring fault)
43: Common door shorted to battery (probable wiring fault, could be a servo that failed in an odd manner)
44: Common door shorted to ground (probable wiring fault, could be a servo that failed in an odd manner)
45: A/C control blend door input open or shorted with respect to ground (MTC only, wiring fault or bad servo)
46: A/C control blend door shorted to battery (MTC only, wiring fault or bad servo)
47: A/C switch failure (MTC only)
48: A/C control mode door input shorted to ground (MTC only, wiring fault or bad servo)
49: A/C control mode door input shorted to battery (MTC only, wiring fault or bad servo)
50: A/C control electric backlite (EBL) switch fails (MTC only)

51: System voltage too low for calibration!!! (check battery cables, battery and alternator!)

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1 Answer

Blend door stuck open, buick lesabre custom,can not locate blend door to close it


it is controlled by an electronic actuator. look up blend door actuator on google with your year make and modle and it will show a diagram and location, also a part number if you would like to replace.

Nov 01, 2013 | Cars & Trucks

1 Answer

Blend door postion selector


According to the book, I'm showing a mode actuator and a blend door actuator next to it. Some models use cables and some use small electric motors to move the doors.
Are you sure you are working on the right door ?

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My 1997 ford f150 heater will not blow hot air. i have replace the switch that controls the hot and cold air. i do not know what else to do. i do not heat any vacuum noise when i switch it to the heater or...


first, check under te hood to see if the heater core water hoses are hot going in and coming out. If hot going in but cold coming out, water valve (if you have one) may not be working.
------------------------------------------------------------------------------------------------
Control System Outputs
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by vacuum control motors. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
For more information on the control components Section 412-04 .
-------------------------------------------------------------------------------------------------------------------------------------
Air Management Doors
The air management doors are controlled by vacuum control motors (18A318) and an A/C electronic door actuator motor (19E616). The air inlet and distribution doors are controlled by a vacuum control motor. The temperature blend door is controlled by the A/C electronic door actuator motor.
The A/C electronic door actuator motor provides a variable number of temperature blend door positions. Temperature control position energizes the A/C electronic door actuator motor moving the temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. The air inlet and panel/defrost doors use a two position vacuum control motor. The floor duct/panel door uses a three position vacuum control motor. Vacuum control motors are controlled by engine vacuum through the climate control head.
-------------------------------------------------------------------------------------------------------------------
Section 412-04: Control Components - Climate Control 1997 F-150, F-250 Workshop Manual
REMOVAL AND INSTALLATION A/C Electronic Actuator
Removal
  1. Remove the floor duct panel.
    • Remove the two plastic push pins (one each side) and release the expander clip.
  1. Remove the RH instrument panel brace.
    1. Remove the lower nut.
    1. Remove the upper bolt.
    1. Remove the brace.
  1. Remove the LH instrument panel lower nut and position brace out of the way.
  1. Disconnect the vacuum harness from the vacuum actuator.
  1. Remove the floor duct.
    1. Remove the two screws (one each side).
    1. Remove the floor duct.
  1. Remove the panel/floor door vacuum control motor.
    1. Disconnect the vacuum line connector.
    1. Remove the two panel/floor door vacuum control motor screws.
    1. Slide the rod out of the door and remove the panel/floor door vacuum control motor.
  1. Remove the electronic actuator.
    1. Disconnect the electrical connector.
    1. Remove the three screws.
    1. Pull down to release the actuator shaft and remove the electronic actuator.

Jan 24, 2011 | 1997 Ford F150 Regular Cab

2 Answers

2004 f350 ford heater blows cool air but hoses are both warm-where do i start looking


check to see if the blend door is moving where you change the temperature setting. I think your blend door is behind the glove box. Here are instructions for removing the actuator. Take it off, plug it back in and see if the motor rotates. Also check to see if you can rotate the blend door by hand. If you can rotate it by hand, the motor is probably broken of the gears are stripped. Let me know if you have questions.
  1. Release the stops and lower the glove compartment door.
  2. Disconnect the connector.
f4b0b74.gif Fig. Blend door actuator-F-250 & 350


  1. Remove the two screws. Rotate the blend door actuator and bracket assembly. Remove the electronic blend door actuator and bracket assembly.
  2. To install, reverse the removal procedure.

Oct 17, 2010 | 2004 Ford F350

1 Answer

My air conditioner is working but won't blow out


Are you saying the temp blend door is not working?
If yes, it's the control head or the temp blend door motor on th plenum case under the dash. Buy used on ebay.

DO you have manaul or electroic controls?

If electronic

A/C Electronic Blend Door Actuator The A/C electronic blend door actuator is located on top of the A/C evaporator core housing (19A553) assembly.
  • Its function is to move the A/C air temperature control door on command from the control assembly.
  • The A/C electronic blend door actuator contains a reversible electric motor and a potentiometer. The potentiometer wiper is connected to the actuator output shaft and moves with the output shaft to indicate the position of the A/C air temperature control door.
  • A five volt signal is applied to the ends of the potentiometer. The voltage available at the wiper indicates the position of the potentiometer. The expressed value of the actuator wiper voltage is sent to the control module and matched with the wiper voltage of the module potentiometer. The printed circuit board then drives the actuator motor in whichever direction is necessary to make the actuator wiper voltage agree with the control module wiper voltage.
-----------------------------------------------------------
manual

#3 is the blend door.

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May 08, 2010 | 1998 Mercury Grand Marquis

1 Answer

I have to replace the ac door actuator motor behind the ash tray


are you sure it is not the temp control on the heater control panel that's bad?
please rate if this solves your issue.

A/C Electronic Blend Door Actuator The A/C electronic blend door actuator is located on the rear of the A/C evaporator housing assembly.
  • Its function is to move the A/C air temperature control door on command from the control assembly.
  • The A/C electronic blend door actuator contains a reversible electric motor and a potentiometer. The potentiometer wiper is connected to the actuator output shaft and moves with the output shaft to indicate the position of the A/C air temperature control door.
  • A 5 volt signal is applied to the ends of the potentiometer. The voltage available at the wiper indicates the position of the potentiometer. The expressed value of the actuator wiper voltage is sent to the control module and is matched with the wiper voltage of the module potentiometer. The printed circuit board then drives the actuator motor in whichever direction is necessary to make the actuator wiper voltage agree with the control module wiper voltage.
A/C Electronic Blend Door Actuator
Removal
  1. Disengage two push pins retaining instrument panel insulator to instrument panel. Disconnect courtesy lamp from instrument panel insulator.
    1. Remove floor console. Refer to Section 01-12 .
    1. Working from under instrument panel, remove two retaining screws and metal cover from A/C evaporator housing.
    1. Remove A/C electronic blend door actuator electrical connector.
    1. Remove three remaining retaining screws from A/C electronic blend door actuator.
    1. Pull the A/C electronic blend door actuator away from the A/C evaporator housing for a distance of approximately 25 mm (1 inch) to disengage it from the A/C air temperature control door.
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May 24, 2009 | 1997 Lincoln Continental

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