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Temp Controls Got Problems? Crown Vic Grand Marquis Town Car Air Conditioning Control climate control automatic heater problems FIXED!!!

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Ford Lincolns Mercury 1) Press the OFF and FLOOR buttons simultaneously, release, then within two seconds press the AUTO button. 2) Some models are slightly different- you press the OFF and FLOOR buttons simultaneously, then (while holding the two buttons) press the AUTO button. 3) You should see a tracer line running in a square/circle for maybe 30 seconds, then a code should appear.

If it is 888, no faults were found in the electronics. If another number comes up see below. These autoclimate control units go bad all the time and I rebuild them for you, it takes a day, we see them give problems on many Ford Mercury and Town Car Lincoln. Your symptoms might be all hot air, or all defrost sometimes no air Lincoln doesn’t make the temperature air control or auto climate control any longer. It always results in having a hard time to control heating. The early version of the Ford Lincoln and Mercury is the same 1997 Lincoln and older while the 1998 Lincoln Mercury and Ford use a newer and just as problematic unit. Email or visit my website  http://partsplanet.net/  to order your replacement auto climate control or bring it in and I will rebuild yours! Remember we also see many of these problems on Crown Vic car- Call us or email us- we know all the Crown Victoria problems! (we should start a Crown Victoria forum, I guess Crown vic forum anyone?) These autoclimate control units go bad all the time and we rebuild them for you, it takes a few days.
BUYITNOW 1995 1996 1997 Crown Victoria Town Car Grand Marquis EATC Dash heater control (exchange due) 655-504 655-00504

BUY NOW: 2003 2004 2005 2006 2007 2008 2009 2010 2011
Crown Victoria Grand Marquis EATC Dash heater control 655-01466 655-1466 (exchange due)

Your symptoms might be all hot air, or all defrost sometimes no air Lincoln doesn’t make the temperature air control or auto climate control any longer. It always results in having a hard time to control heating. The early version of the Ford Lincoln and Mercury is the same 1997 Lincoln and older while the 1998 Lincoln Mercury and Ford use a newer and just as problematic unit. Email or visit my website http://partsplanet.net/  to order your replacement auto climate control or bring it in and I will rebuild yours! Remember we also see many of these problems on Crown Vic car- Call us or email us- we know all the Crown Victoria problems! (we should start a Crown Victoria forum, I guess Crown vic forum anyone?)   /q/Ford-Repair-811/Climate-control-Fan.htm “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 NGS tester 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 (DTC) 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 performing 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 self-test and clear all diagnostic trouble codes, 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 this should avoid any additional problems with your auto temperature control. The blower relay is in the junction box under the hood. If you have the owners manual there is a diagram that shows the location of fuses and relays. The other fan control is an electronic speed controller, mounted an the case near the blower motor.

Powertrain Control Module Diagnostic Trouble Code (DTC) Index DTC Description Action P1460                 WOT A/C cutout circuit malfunction REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. P1464                  A/C demand out of self test range GO to DTC P1464. ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX NGS DTC EATC Description Action to Take (Hard) Self-Test Faults (Intermittent) Run-Time Faults B1249                          024 022 Blend door short 025                              Blend door failure GO to DTC B1249. B1251                          031 N/A A/C in-car temperature sensor open circuit GO to DTC B1251. B1253                          030 N/A A/C in-car temperature sensor short to ground GO to DTC B1253. B1255                          041 043 A/C ambient temperature sensor open circuit GO to DTC B1255. B1257                         040 042 A/C ambient temperature sensor short to ground GO to DTC B1257. B1261                          050 052 A/C solar radiation sensor circuit short to ground GO to DTC B1261. U1073                          N/A N/A SCP invalid or missing data for engine coolant REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. U1341                          N/A N/A SCP invalid data for vehicle speed REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual. ”

50 Responses

  1. pete

    i did like you said my climate control gives me 888 but when i jump the vacum hose all the hot air traps work

    February 24, 2012 at 1:49 pm

    • admin

      It sounds like you have the 1998 and newer version. An 888 indicates “no condition detected”
      which sounds like the vacuum switcher unit needs to be rebuilt inside the control head.
      I do that here at the shop for 100.00 same day turnaround. my info is @ http://www.PartsPlanet.net or toll free 877-722-3138

      February 24, 2012 at 2:22 pm

  2. Gabe

    I have a 94 town car and it only blows cold air. I ran the diagnostic and the screen goes blank for a few seconds and then the code 02 shows up. Is that a valid code? Any ideas?

    February 27, 2012 at 9:14 am

    • admin

      02 doesn’t show on any of my errors codes for that car, maybe the display back light is out and doesn’t shown the first part of the code?
      Or maybe your seeing the tail end of the software version. MAYBE try this:

      re-enter the self test and then exit the self test by depressing the DEFROST button. This will clear DTC’s from EATC memory.
      enter the self test to give valid codes.

      February 27, 2012 at 10:37 am

    • ken

      After much searching I found an 02 error is a blend door actuator error. Do you hear any clicking or popping under the dash? If you do it’s a broken gear in the mechanism that switches the air path from hot to cold. Just replaced it last nite (on my ’94 TC) and it took about 5 hours. Had to pull the dash loose from the car.

      July 3, 2012 at 3:03 am

  3. Gabe

    The defrost button didn’t do anything. The only way I can get rid of the 02 code is by pressing the blue cooler button. When I re-enter the self test the 02 comes back.

    February 27, 2012 at 12:40 pm

  4. Bill

    I have a ’99 Crown Vic with auto climate control. Blows hot air only. Replaced the blend control module with no change (except wasting a day tearing and putting back the dashboard :( . ).

    I did you specified code check and it came back with a code of “024″.

    Is that a recognized code? And can you repair this unit?

    Thanks

    April 22, 2012 at 2:27 pm

    • admin

      that generally is a blend door problem, the hinge pivot on the blend door breaks causing it to jam, or sometimes it just wears out and gets stuck.
      However, if I read your post correctly you already replaced this but are STILL getting an 024 blend door error. If you fixed the blend door and it’s still not working- then- yes the problem is in the control head/button unit.
      pull it, send it, I’ll test and fix it.

      April 22, 2012 at 3:10 pm

  5. Bill

    Update. A read a few more things to try to get to the bottom of this. I double checked the replacement part I put in. I used a Dorman replacement part #604214. I double checked and they indicate that this is the right unit for my model and year and it is correct for automatic controls. They have a separate part for the non automatic control system. I confirmed all of this from the packaging.

    So, pulled apart the unit which I replaced and found the missing/stripped plastic teeth on the first plastic pinion gear. That confirms that I at least had a bad actuator. This is the symptom most reported online, broken plastic teeth in the actuator.

    When I did the job, I checked the door movement without the actuator in place and it moved freely and I could hear it slam the door shut on either end. There seemed to be no resistance to moving the door without the actuator in place.

    So the way I see it, I have 3 things that could be wrong:

    1) the door is binding when the actuator is bolted in place. I have to rip out the dash again to check.

    2) the new actuator is either the wrong part or dead out of the box.

    3) the controller has malfunctioned because of this problem and will not drive the new actuator.

    I will pull the dash again next week and see if I can confirm that the actuator is trying to work when the unit is not attached to the car. If it is not, I will confirm that the motor in my original unit is trying to drive the actuator. If it is not, then 3 is the right answer. This will tell me if it’s 1, 2 or 3. If its not 1 or 2, you’ll be hearing from me about repairing the controller.

    Thanks

    April 22, 2012 at 3:29 pm

  6. admin

    pull the head out and disconnect the vaccum lines at the back. Then manually put vacuum to the different vacuum ports you will hear the different flaps move(saves pulling everything apart to test that.)
    yeah my bet is a dead head. I do at least one a week for the 1997 and older Fords.

    April 22, 2012 at 3:38 pm

  7. j.vega

    hi! i own a crown victoria is a 98 model. my a/c blower is on all the time in high only and the windshield vent is the only one blowing some air!! i have no display. sometimes it lights and fade away. i removed it and look inside to see any burned marks on the circuit boards and nothing. once i plug it back the blower started at low then went to high. the display was bright for at least a minute then fade way. i haven’t try the diagnostics yet but if you had this problems before..you can tell me if i need to replace the control unit or repair. thanks.

    May 23, 2012 at 4:47 pm

    • admin

      probably the valve body inside the control head is bad,
      and the diagnostic mode will probably also show a blend door is bad also.

      May 24, 2012 at 8:15 am

  8. j.vega

    thanks!! if i send you one as core..how much is the repaired or replacement cost??..i’ll take care of the shipping charges! i’m in Puerto Rico.

    May 24, 2012 at 10:32 am

  9. j.vega

    i already checked for codes and i have no display! it went off! blower still working at high speed! a/c compressor off still blowing to windshield! is there a way to install manual control to this car?

    May 24, 2012 at 11:26 am

  10. daniel jones

    i have a 97 grand marquis i changed my blend door box and it has been working. New problem my compressor is not turning but i can move it wit my hands and all i get is heat. what do i do. please respond asap

    June 18, 2012 at 1:45 pm

    • admin

      yeah that is the circuit board now no power to compressor.
      We rebuild that and the solenoid pack inside the head unit.
      I have a few in stock or send yours for rebuilding.

      June 18, 2012 at 2:05 pm

      • daniel

        How much and the head unit do u mean the climate control

        June 18, 2012 at 7:40 pm

  11. Allen Tate

    Have a 1997 lincoln town car executive with a code 30 on the air conditioner, any suggestions as to what this means and if so how to repair it? I have replaced the blend door actuator motor one time, but think it might be out again, since I have noticed some clicking going on again, plus a change in temp sometimes when rounding a corner prior to this code 30 problem, ac compressor not engaging at all as of now.

    June 25, 2012 at 11:58 am

    • admin

      the 030 might be related to the same problem as the compressor not turning on.
      However, the compressor not turning on is on the main board- about 90% of the rebuilds I do have that problem.
      I send you a rebuilt unit I have in stock or I can rebuild yours.

      June 25, 2012 at 12:51 pm

  12. Daniel Jones

    Ok mine is doing the same thing but no error code. I have a 97grand maerquis. So is it my compressor or my climate. The compressor is not locked up and comes on when it wants to and its not over charged. Can I get a reply by da morrow it my only da off

    June 25, 2012 at 6:15 pm

    • admin

      Yep that’s a circuit board pro
      blem also. Rebuild yours or send out a replacement.

      June 25, 2012 at 9:37 pm

  13. jim

    OKAY,
    So glad to see your site!! Wife is all over me about AC in hotlanta!
    2003 Gr Marq. Compressor and freon all good. Started being temperamental with cold air then would decide after 10-30-40 min to give cold air. Then went to hot air only and the last fun one – it now chooses in cycle which vents to push the hot air out of. The floor -next minute the defrost -next min the vents round and round it goes.
    Diagnostic code is of course 888. I really don’t think it all ok !
    Help please

    J

    July 3, 2012 at 10:12 am

    • admin

      yea the internals have gone out. Thats a repair we do here same day turn around.
      Toll free 877.722.3138 mike

      July 3, 2012 at 11:20 am

  14. lloyd

    I have a 97 Town Car w/climate control, I don,t know if I did the self test properly but when I turn the ignition on, 888 is displayed with all the function icons encircling the 888. The system is charged and all functions work but I get no compressor engagement. Is there a process I can perform to engage the compressor without causing damage to the electronics. In short can I jump the clutch?

    July 7, 2012 at 2:59 pm

    • admin

      sorry I just got this post.
      The compressor won’t turn on or no power to compressor problem is the main board.
      I normally stock that one and should be able to send it out
      on an exchange basis. 877-722-3138 mike


      Shipping options
      Includes 1 year warranty




      July 18, 2012 at 8:39 am

  15. jake

    got a 05 crown vic that is possessed by the ac devils. it seems to go from defrost to vents to floor at random with no actual fan control it to also automaticly goes from fully on to almost no air and back all by itself until it you physically turn the unit off. I tried your code scan thing and my display showed 888 with all the unit selection lights on. I tried the heat it seems to function but again with no speed control and i didnt leave it on long enough to see if it to is posessed. I just bought this gd vic how do i fix this problem.

    thanks
    us army ret. ssgt.

    July 18, 2012 at 7:08 am

    • admin

      Yes that’s the head unit problem.
      the internals are bad and need rebuilding.
      150.00 including shipping both ways.
      I normally stock that one and should be able to send it out
      on an exchange basis. 877-722-3138 mike

      July 18, 2012 at 8:21 am

  16. Bill

    Help please 2010 grand marquis it blows out the floor and defrost. When put on low fan it blows out all three when the car is stopped or stopping. Thanks Bill

    August 3, 2012 at 12:44 pm

  17. Gman

    Hi Guy’s did self test on 97 crown vic showed no codes hot air still blowing from A/C, any suggestions

    August 18, 2012 at 8:59 am

  18. Benny p

    I’m showing an error 024 in my 02 grand marquis. Is there any way to fix the blend door short myself?

    October 3, 2012 at 6:49 am

  19. Hartley

    Hi
    I have an 03 Lariat that I tried to test….nothing happened, can’t get it to go into diagnostic mode at all.
    The fan doesn’t work unless I put DC directly to it so I suspect the blower control is toast.
    Is there any way that you know of to test that?
    Thanks

    October 19, 2012 at 9:53 am

    • admin

      some units don’t go into diagnostic mode as easy as others.
      some cars I have to try both methods several times before it cooperates !!!

      October 19, 2012 at 11:18 am

  20. Hartley

    Nope, tried both ways a few times, still get nothing.

    October 20, 2012 at 7:44 am

  21. Don

    I have a 2006 Grand Marquis, only blows floor and defrost. I did your test and it came back 025 and 024? Need help!

    November 30, 2012 at 9:41 am

    • admin

      Blend door issues! But from my experience with two blend door codes the control head is the problem.
      I”m posting the diagnostic sheet, but I believe your control head is bad. I fix them same day turn around.

      November 30, 2012 at 10:04 am

      • Matthew

        I have a 1996 marc. Grand marquis and sometimes my heat works. It blows cool air. Been reading all the comments and not sure where all these things are. Did the code thing and got,024,025,124 and 115. Any help. Can’t really afford to pay someone. Thanks.

        February 5, 2013 at 8:47 pm

  22. Rob

    When you install a new blend door actuator, you have to first clear the error codes before activating it, or even the new part won’t function.

    March 21, 2013 at 3:44 pm

  23. James Anderson

    I have a 1997 Lincoln Town Car. Prior to running across this site… A/c stopped working, mechanic first said both low and high pressure hoses needed replacing which was done. Still no A/C, mechanic continued to troubleshoot.
    Stated problem was the digital auto climate control unit which he is currently searching for.
    I ran the diagnostic check and the unit reads 888. No electronic faults found. I ran it several times with engine off, engine on.
    A/C compressor will not kick in, what would be a area to look at, or what could possibly cause this? Mechanic had stated he new the A/C compressor was good because he ran a lead straight from the battery to check it. I assume he bypassed something. I don’t want to go to another A/C mechanic and spend more money without a little upfront knowledge and it it comes down to a part or componant, I know who to contact!

    Thank you,

    James M. Anderson

    April 19, 2013 at 11:02 am

    • admin

      When everything else is checked out the “no power to compressor clutch” problem like your 97 Town Car is on the main board of the heater control head.
      That is the problem we repair during our rebuild.
      feel free to email or call http://www.PartsPlanet.net one8777223138 Mike

      April 19, 2013 at 12:25 pm

  24. My 97 grand marquis the climate control switches from calcius to farenhit. Any reasons why it would be doing this?

    June 14, 2013 at 11:38 pm

    • admin

      is it switching back and forth or did it just change from one to the other?

      July 16, 2013 at 11:35 am

  25. Nolan

    My 97 grand marquis climate control switches from farenhit to calcuis automaticly any reasons why it would be doing this and is there away to fix it?

    June 14, 2013 at 11:40 pm

  26. Steve

    My 1997 Grand Marquis has the codes 125 and 115. What do these codes indicate?

    July 29, 2013 at 6:41 am

    • admin

      I believe those codes both relate to bad signal from the temperature sender on the AC suitcase in the engine compartment “ambient sensor short.”
      what are the symptoms?

      July 29, 2013 at 9:31 am

  27. Bianca

    Hello I have a 06 Mercury Grand Marquis it does not switch from ac to heat at all ! It will only work on either or if i disconnect the battery for a while and set it on ac or heat which ever one i want… but it will not switch it self . What would be the issue causing that ?

    November 13, 2013 at 8:31 am

    • admin

      thats inside the control unit & yes it need to be rebuilt.

      November 22, 2013 at 8:47 am

      • Bianca

        Someone told me it was the Ac motor Actuator. .. that’s inside the dashboard

        November 25, 2013 at 6:37 am

        • admin

          did you put it into diagnostic mode?
          “1) Press the OFF and FLOOR buttons simultaneously, release, then within two seconds press the AUTO button. 2) Some models are slightly different- you press the OFF and FLOOR buttons simultaneously, then (while holding the two buttons) press the AUTO button. 3) You should see a tracer line running in a square/circle for maybe 30 seconds, then a code should appear.”

          November 25, 2013 at 8:58 am

  28. Bianca

    I havent tried that yet what code should appear and what will it mean ?

    November 25, 2013 at 12:59 pm

  29. Kody

    Hey mike,
    Been reading through the comments above. Been trying to figure out what went wrong with my new blend door actuator I just installed today on a ladies car. Did the self testing and got the 024 and 025 error code so I replaced it. Got the car all back together started it up, got it warm and turned on the heater for the first time and got a small hint of electrical smell now all I got is hot heater and no a/c it was the opposite when I started out the day. Still got 024 and 025 code even when I try clearing and running self test over again. Is there a detailed way of telling or showing me how to pull the controller like you said to test the rest of the system? The car is a 95 grand marquis. I don’t want to just keep shot gunning the problem and replacing parts if it really isn’t the cause of my problems. Any help would be great thank you

    February 17, 2014 at 8:21 pm

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