Question about 1999 Chrysler 300M

1 Answer

Heater-A/C control calibration procedure

What is the AC control calibration procedure?

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I found these instructions when my heater suddenly stopped working. Start car, while car is parked turn temperature to 75. Hold down the floor, defrost/floor and the defrost buttons. Wait til the temp light starts blinking, release. It will blink for a while and either recalibrate and be fine like mine or you could get 1 of 16 different trouble codes. Hope this helps. ;p ~Redmoon

Posted on Jan 05, 2013

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How do you calibrate a ac/heater control unit


If it doesn't cool well does it need a recharge?

Nov 06, 2015 | 2005 Chrysler Pacifica

1 Answer

Heater keeps cycling from hot to cold. tried to calibrate. dident work.


AC blows cold, then hot, then cold... - Car Forums and Automotive ...

www.automotiveforums.com > ... > Chevrolet > Blazer
A/C now turns on but will blow cold air for 5 seconds then back to hot for the same. ...It seems be be left of the heater box somewhere but it is definately inside. .... on this '98... the things just keeps turning in there, hot, cold, hot and so forth.

Sep 22, 2015 | Cars & Trucks

1 Answer

2002 Jeep Liberty heater works, but defroster blows cold air


on all cars made
(you can read the FSM at any time and see exact way and tests)
1: damper stuck or its actuator bad. ( 3 kinds uses on all cars)
2 ;controls to damper actuator bad.
3: wires between both faulty.

3 types are motor, vacuum servo and cable.
you have 2 of the 3.
the blend is a motor actuator
the recric is vacuum servo
the motor types are very hard to test, read the FSM.

ill post the calibration

quote

Use this procedure to ensure that the A/C-heater control is correctly calibrated to the blend door actuator. If the calibration is not correct, the heating-A/C system may experience a condition where full heating or cooling capabilities cannot be obtained.
Manual calibration of the A/C-heater control should be performed if the blend door actuator is not functioning properly, or if the temperature of the conditioned air is too warm with the temperature control in the full cold position or too cool with the temperature control in the full hot position.
NOTE This calibration procedure can only be started within the first ten seconds after the ignition switch has been turned from the OFF position to the ON position. Make sure that the battery is fully charged prior to beginning the calibration procedure. NOTE The length of the pause made at each end of the temperature control rotation (sweep) is important. 5 seconds) or too long (greater than 1.5 seconds).
  1. With the ignition switch in the OFF position, move the temperature control to its middle (12 o'clock) position.
  2. Turn the ignition switch to the ON position (do not start the engine).
  3. Within 10 seconds of turning the ignition switch from the OFF to the ON position, perform the following rotations (sweeps) of the temperature control.
    • From the 12 o'clock position, rotate the temperature control counter-clockwise to the full cold position. Pause one second.
    • Rotate the control clockwise to the full hot position. Pause one second.
    • Rotate the control counter-clockwise to the full cold position. Pause one second.
    • Rotate the control clockwise to the full hot position. Pause one second.
    • Rotate the control counter-clockwise to the full cold position.

Oct 05, 2014 | 2002 Jeep Liberty

1 Answer

2005 chevy impala passenger side blows heat out continuously, driver's side works fine with heater & AC


You may find a reset will solve this annoying problem. The problem you have is the GM heater control unit has lost it's calibration, which can happen from time to time. The way to reset it is, start your car and turn your heater off, and shut off the car, pull out the keys. Then with vehicle off, disconnect the battery, (or batteries if it has two). Let sit for 10 minutes, then re-connect battery. Get in and start the engine, DON'T touch anything, let the heater control unit re-calibrate for at least 40 seconds, (by the clock), then try turning on the heater.
Good luck!

Jul 18, 2013 | Cars & Trucks

2 Answers

Where is the blower motor relay located on a 2010 jeep liberty


on all speeds, is it dead sounding or only no air flow???
wow no symptoms posted only this goose chase deal.

use the scan tool yet? see all DTC errors.
2008 cars can report most cause of lost power etc,
not scanning, invites expensive gue$$ing.!!

HVAC 101: (
gdoes the motor have 12vdc on high? at connector to it>?
on all speed's (now that is a KEY FACT there)

  1. defeat air bag first or die , fiddling these parts.
  2. do the HVAC calibration yet? per FSM.
  3. scan it yet ,if not you will guess wrong. I promise,
  4. i have to stop my online page ,is missing the wiring sections.

calibrate damper:
Use this procedure to ensure that the A/C-heater control is correctly calibrated to the blend door actuator. If the calibration is not correct, the heating-A/C system may experience a condition where full heating or cooling capabilities cannot be obtained.

Many steps can not be done with out a real jeep scan system.
sorry, cant.

Apr 16, 2013 | 2010 Jeep Liberty

1 Answer

How to change blower motor in. 99 grand Cherokee


Check this procedure...Blower Motor Resistor and Controller Replacement


REMOVAL

1. Disconnect and isolate the batten' negative cable.

2. Depress locking tab and unplug the wire harness connector from the blower motor

resistor or controller (power module).

3. Depress locking tab and unplug the resistor or controller connector from the blower

motor.

4. Remove the 2 screws that secure the blower motor resistor or controller to the

heater-AC housing.

5. Remove the blower motor resistor or controller from the heater AC housing.


INSTALLATION

1. Install the blower motor resistor or controller to the heater AC housing. The

housing is indexed to allow (controller power module) mounting in only one

position. Tighten the mounting screws to 2.2 Nm(20 in. Lbs.).

2. Plug in the wire harness connector to the blower motor resistor or controller.

3. Plug in the connector from the blower motor resistor or controller to the blower

motor.

4. Connect the batten' negative cable.

zjlimited_1958.jpg


Hope this helps (rerember to rating this and leave a testiomonial).

Sep 30, 2011 | 1999 Jeep Grand Cherokee

1 Answer

Replaced the battery on a GMC Sierra 2005. Turned AC on, it cooled for about a minute and started blowing hot air on the driver side, the passenger side blows cold. What does replacing the battery have to...


you have taken the calibration out of sink. you will now have to remove battery power again for about 5 minutes. after this time reconnect the battery. then turn key to on position for 3 minutes but do not touch the heater control or temperature controls. This should allow the heater and ac system to recalibrate. once the 3 minutes is up turn key off and then back on and start truck.. Try your controls again and see what happens. if no change then dealer will have to reprogram the heater control calibration for you.

Jul 18, 2011 | 2005 GMC Sierra

1 Answer

Changed my battery in my 2005 Tahoe and now the AC is only blowing at the feet and defrost areas. I know that it needs to be rest but dont know how... any one know the steps??


{: ) Check carefully your settings make sure it's not on defrost or defog positions. If there are no actuator or wiring issues, you can try the following steps:
NOTE: Do not adjust any controls on the HVAC while doing this procedure.
1. Turn off your a/c and the ignition switch.
2. Remove the HVAC/ECAS fuse(10amp) at the underhood fuseblock for 10 seconds.
3. Reinstall the fuse.
4. Start the vehicle. Wait 40 seconds for the HVAC control module to self calibrate.
5. Now you can check the operation of the HVAC controls.
I hope you get lucky. Otherwise, better have it calibrated with a scan tool. If a scan tool is present it can also check for any DTC that might be present, which may render the procedure unsuccessful.

Jun 28, 2011 | 2005 Chevrolet Tahoe

1 Answer

Had the battery changed, but now the (heat) vents in the top of the van and the floor vent (heat) does not work - only cold air comes out. Also, the heating/cooling dial lets it get hot midway on cold...


Try this calibration procedure and let us know if you have more questions:
  1. Start the vehicle.
  2. Wait 40 seconds for the HVAC control module to self-calibrate.
  3. Verify that no DTCs have set as current DTCs.
  4. Clear all DTCs.
  5. Place the ignition switch to the OFF position.
  6. With the Mode knob in the PANEL position, press and hold the AC button for 5 seconds.
  7. Rotate the Mode knob fully counterclockwise.
  8. Rotate the Mode knob fully clockwise.
  9. Rotate the Mode knob fully counterclockwise.
  10. Release the AC button.
  11. Wait 40 seconds for the HVAC control module to self-calibrate.
  12. Start the vehicle.
  13. Verify that no DTCs have set as current DTCs.

Nov 14, 2010 | 2005 Pontiac Montana SV6

1 Answer

I own a 2006 Pontiac Montana SV6, there is very little heat coming from the heater, a/c working fine, fan blowing full capacity. Could it be the thermostat.


probably the blend door not opening fully. Do you hear a clicking under the dash by passenger's feet? If not, try calibrating the system:
  1. Place the ignition switch to the OFF position.
  2. With the Mode knob in the PANEL position, press and hold the AC button for 5 seconds.
  3. Rotate the Mode knob fully counterclockwise.
  4. Rotate the Mode knob fully clockwise.
  5. Rotate the Mode knob fully counterclockwise.
  6. Release the AC button.
  7. Wait 40 seconds for the HVAC control module to self-calibrate.
  8. Start the vehicle.
If this doesn't work, your actuator may have failed. Look under the dash to see if any of the actuators on the heater box are trying to turn when you change the temperature setting. Unfortunately, I cannot find aftermarket parts for your heater, so if the door isn't working you may need to go to the pontiac dealer. Let me know if you have questions.

30db56a.gif

Oct 22, 2010 | 2006 Pontiac Montana SV6

Not finding what you are looking for?
1999 Chrysler 300M Logo

342 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chrysler Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8575 Answers

Are you a Chrysler Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...