What is an ATC in Climbing? - Cars & Trucks

ATC fuse 20 amp ? Power to the ATC control module & encoder motor . Shorted circuit in electrical wiring to one of the componets listed above . Do you know what a electrical diagram is ? How to use a DMM - digital multi-meter to test electrical circuits ? Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info year , make , model an engine size. Under system click on driveline / axle . Under subsystem click on transfer case controls . Click the search button ,then the blue link. First link / first diagram ,top right . ATC fuse - orange wire to encoder motor an atc control module . One of these has a short to ground probably .

Bernard,

HVAC failure
the car has 2 classes of HVAC< manual and ATC
the blower must blow on high.??? does it on high?
if not, check fuses, for blower. (if lower speeds only fail say so)
the blower is dead,
then say if dash controls are Manual or ATC<
atc = automatic temp,controls with a dash thermostat et cetra.

the diagnostic path is different.
the ATC has self test too. .with over 30 errors possible.

use comments to respond, not a new post. please.

ATC Fuse

• ATC fuses were created before ATM fuses. An ATC fuse will be larger than an ATM fuse in physical size. This is considered to be the regular size. An ATC fuse will be found in late-model electronic devices.
  

ATM Fuse

• An ATM fuse is considered to be a mini fuse and it came out in the early 1990s. The only difference is it is smaller than an ATC fuse in actual size. It generally cannot be used in a fuse block that is made for an ATC fuse, as it will not fit in properly.
  

Contact Honda Guru eric the car guy who should be able to help with that. Just register on the forum and pose the question. They are good people there. Here is a link...

http://www.ericthecarguy.com/kunena/index

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!)

If it has good spark why wouldn't you look at the fuel system?

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Hi there,

Code 36 = ATC Head Command Failure (Chrysler's technical term: EEPROM Checksum Error).

Basically, this code indicates the Auto Temp Control (ATC) has malfunctioned.

If this is a stored code (i.e. not active) and your ATC appears to be working ok, then you can disregard this code. However, if this code is active (i.e your ATC is not communicating with your A/C system), then there is no simple fix you can do yourself.

Although some mechanics would suggest replacing the actual A/C Heater Control, I understand your Chrysler service agent may have a way to re-flash your system to correct this code. I recommend you contact your local service agent and discuss a possible reset of your system.




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jai un blazer 2001 avec un probleme de fuse qui saute seule du atc elle saute sur la route lorsque le 4x4 es engager apres quelque minute de route jai changer lencoder le module atc tout verifier le filage a l'oiel et jai rien trouver quelquun peu maidee svp

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