Question about 1995 Jeep Grand Cherokee

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Heat only comes on floor &defoster p.s car has atc system

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  • newsdayjim Aug 25, 2010

    how do i check outblend door

  • newsdayjim Aug 26, 2010

    how do i check blend door swich ,where is it located

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  • Master
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I would check this site out to provide you with the answer, there are a few motors that actuate doors that open and close and provide pathways for theair to flow...it does sound like your air door actuator is at fault.......you also have the bend door for the temperature control, and the ATC door for the automatic side of things.......good luck and i hope this helps

http://autorepair.about.com/library/faqs/bl187i.htm

Posted on Aug 26, 2010

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  • Master
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Have the blend door checked out if the mode switch in the AC Heater Control is working correctly. Most likely the mode switch is at fault

Posted on Aug 25, 2010

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2010 Dodge Journey with 2 zone ATC no heat coming from passenger side but good heat on drivers side. Heater doors seem to be operating okay. Any ideas on what the problem is?


Vehicles with dual zone heating systems have two blend doors - one for each zone. These are different than the mode doors, which direct the airflow to floor, dash, defrost, etc. Apparently the blend door for the driver's side is working, but not the one for the passenger's side.

Dec 07, 2016 | 2010 Dodge Journey

1 Answer

Find a Diagram for 1989 Lincoln Towncar 4 Door Fusebox


this is for the base model


FUSE PANEL IDENTIFICATION (1983-90 LINCOLN TOWN CAR) The fuse panel is located in the instrument panel to the left of the steering column. To expose fuse panel, remove lower steering column finish panel.

Fuse & Circuit Breaker Identification

· 1 - 15 Amp Stoplights, Hazard Warning Lights, Speed Control Module, Trailer Tow Relays, Cornering Light Relay (1983-89)
· 2 - 8.25 Amp (Circuit Breaker) Windshield Wiper/Washer
· 3 - Blank
· 4 - 15 Amp Taillights, Side Marker, License Light, Parking & Coach Lights, Cluster Illumination, Trailer Tow Relay
· 5 - 15 Amp Turn Signal & Back-Up Lights, Trailer Tow Relay, Cornering Light Relays, Heated Rear Window Relay, Rear Defrost (1988-90), A/C Clutch & ATC Module (1990), Load Leveling (1990)
· 6 - 20 Amp Heated Rear Window Control, Speed Control Module & Clock Display, Illuminated Entry Module, Power Window & Police Accy Relays, Fuel Filler Door Release (1983-87), A/C Clutch & Cornering Lights (1983-89), Deck Lid Release (1987-90), Tripminder
· 7 - 10 Amp Daytime Running Light Resistor (1990)
· 8 - 15 Amp Dome LP-Clock, Key Warning Chimes & Electric Mirrors, Courtesy & Visor Mirror Lights, Autolight & Illuminated Entry Modules, Tripminder, Electronic Radio Memory, Trunk & Underhood Lights
· 9 - 15/30 Amp Heater Blower (15 Amp), AC/ATC Blower (30 Amp)
· 10 - Blank
· 11 - 20 Amp Radio & Power Antenna, CB Radio
· 12 - 20 Amp Door Cigarette Lighters, Power Seats & Door Locks (30 Amp), Tailgate Power Window (1983-89)
· 13 - 5 Amp Illuminated Outside Thermometer, Instrument Panel Lights
· 14 - 20/25 Amp (Circuit Breaker) Flash-To-Pass, Sun Roof, Power Windows
· 15 - 10 Amp Taillights, Parking, Side Marker/Coach, License Lights
· 16 - 20 Amp Horn & Front Cigarette Lighter
· 17 - 15 Amp Electronic Cluster, Message Center
· 18 - 10 Amp Warning Indicator Lights, Throttle Solenoid Positioner, Low Fuel Module & Autolight System, Dual Timer Buzzer & Electronic Chimes, Electronic Message Center

25415475-rnxj1x0ziuckirrqexm4r53n-3-0.gif

Feb 11, 2015 | 1989 Lincoln Town Car

1 Answer

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!)

Dec 10, 2014 | 2001 Chrysler Town & Country

1 Answer

Location of top actator 2000 chevy tahoe


You must remove the dash to replace the temperature control blend door and its actuator, it is combination repair.

Dec 27, 2012 | 2000 Chevrolet Tahoe

1 Answer

In our 1995 Chrysler Concorde, 3.3 liter engine, the heater fan remains on until fuse is pulled. No lights on the ATC. Could the ATC be bad or what should we check or replace? we can't do a scan...


Factory wiring diagrams or manuals --order from -- Helm.Com

Another source -- would be to go to a local shop that has ALLDATA
System & have them print what you need

I personally never buy any Haynes,Chilton etc for the reason
you have found out

Spend the big bucks,if your going to work on your own vehicles

Jul 30, 2011 | Chrysler Concorde Cars & Trucks

1 Answer

Air conditioning vents arent working


if you mean air is going to defost/floor, than you lost vacuum to system.check for cracked/lose vacuum hose

Jul 10, 2011 | 2001 Cadillac DeVille

1 Answer

Vent operation air is only coming out the defoster


check vacuum leak on hose on pass side of engine that supplies vacuum to HVAC unit

Feb 18, 2011 | 1999 Dodge Dakota

1 Answer

The car keeps coming up a code 23 on a 1999 chrysler 300 for the


Code 23= Blend door feedback control


On cars with automatic climate control: To enter diagnostic mode, set the temperature to 75F, press the the off button. Press Floor, Defrost\Floor, Front Defrost simutaneously for 3 seconds until the temperature display begins to flash.
On cars without automatic climate control, set the blower to any speed, turn the temperature control in between warm and cold. Press Floor, Defrost\Floor, and Front Defrost. All codes will flash via the Front Defrost button.
When the test is over all fault codes will be displayed (on cars without automatic climate control, they will be blinked out on the Front Defrost button).
Code Action
23 Blend door feedback control
24 ATC mode door feedback failure
25 Ambient temperture sensor failure
26 ATC in-car sensor
27 Sun sensor failure
31 ATC recirculate door stall failure
32 ATC blend door failure
33 ATC mode door stall failure
34 Engine temperture sense failure
35 Evap temperature sense failure
36 ATC head command failure

Mar 23, 2009 | 1999 Chrysler 300M

1 Answer

CONSTANT warm air through vents


if your durango has auto temp control the likely problem is the atc power module has gone bad...the system defaults to heat

Nov 05, 2008 | 1999 Dodge Durango

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