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  #13  
Old 01-15-2012, 09:59 AM
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Re: Broke Something Connected To My Airconditioning

Thanks again Frango100,

I did see this test on you tube this afternoon and will give it a go in the AM now that there is an explanation behind the clip.
I went to swap out the spare vehicles actuator but it is completely different (assuming manual not the AZC configuration). As usual I put it back together again and the aircon is pumping cold air again.
Will update how it goes tomorrow.
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  #14  
Old 01-15-2012, 03:21 PM
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Re: Broke Something Connected To My Airconditioning

On the manual system only the blend door actuator is electrical, the mode door and recirculation door actuators are vacuum controlled.
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  #15  
Old 01-15-2012, 10:24 PM
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Re: Broke Something Connected To My Airconditioning

Okay, have 6 codes showing
46 = AI (Recirc) motor was not responding
49 = Mode door travel range too small
51 = AI (Recirc) door travel range too small
52 = AI (Recirc) door travel range too large

54 = Left temperature door travel too large
56 = Right temperature door travel too large

I'm aware that 54 and 56 are blend door problems, but can someone confirm if 46,49,51 and 52 relate to a broken recirculation door which could be sitting on top of the blower motor?

Having said that, as I have reconnected the actuator again all is working again (until it stops) and I have cycled through all the settings for the aircon and all is working.
Not worried about heat aspects just the cool breeze for the tropics.
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Old 01-16-2012, 07:49 AM
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Re: Broke Something Connected To My Airconditioning

To be sure that these faults where not introduced by removing the actuator and connector, i would first disconnect the battery for a minute or so, to errase the memory. If the system works fine now, the recirculation door should be ok. Did you try the calibration test?
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  #17  
Old 01-16-2012, 09:02 PM
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Re: Broke Something Connected To My Airconditioning

Disconnected battery and also completed the recalibration test.
Again all vents working as they are supposed to.
Will need to give it a couple of days as that is the MO before it stopped blowing.
Have noticed bits of disintegrated sponge material in one vent on passengers side.
I guess it's a waiting game now.
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Old 01-18-2012, 11:23 AM
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Re: Broke Something Connected To My Airconditioning

Just to finish off the thread, the blower stopped working again and checked the codes which now read 19 and 20 ??????????
Calibrated again and still no blower. So, I took a punt and swapped out the AC relay and now everything is working provided I run the aircon on auto.
Have no idea why, but happy that it is working.
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  #19  
Old 01-20-2012, 01:52 PM
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Re: Broke Something Connected To My Airconditioning

Was the blowermotor absolutely not running, or didnīt you feel any air coming out of the vents? Which relay did you change, because i donīt see any relay in the blower motor circuit? Or was it the blower motor controller?
The codes 19 and 20 are for the recirculation door.
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  #20  
Old 01-24-2012, 07:00 AM
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Re: Broke Something Connected To My Airconditioning

Hey Frank if your reading this happy birthday.

It's stopped again, this time it is now running intermittently

I replaced he AC clutch fuse, but I don't think it has really made a difference.

Pulled it down again and ran the aircon with the actuator not connected and have noticed that the centre mechanisim has reset to a different position. This time when I reconnected, the actuator married up without having to fight to get it in but also had to turnl the arm 90 degrees to the right.
Still not working and am at a loss.

Looks like a job for the aircon crowd.....lol
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  #21  
Old 01-24-2012, 08:37 AM
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Re: Broke Something Connected To My Airconditioning

ac clutch fuse is only if the compressor isnt turning the end with the belt on it will make a clicking sound and than that end will start spinning and it is normal under some conditions for that end to spin than turn off and cycle like that.

when you say its stopped again do you mean the fan isnt running? or is it running but not blowing out of the vents? (perhaps coming out of the defroster vents) you should be able to hear the fan running if its working. I found this article but im sure this is for left hand drive, good luck





check the resister pac for the fan and the connections if in fact the fan isnt running, not sure where its located but its always in the airbox somewhere im sure you can find it
2002 Jeep Grand Cherokee controls the blower speed in your HVAC (Heater-Ventilation-Air Conditioner) system by varying the resistance of the blower motor circuit. As resistance goes up, the blower speed goes down. The normal default, if the resistor fails, is to supply full power to the blower so that it runs on high speed only. However, this resistor is a solid-state design that may not supply power to the blower motor at all when it fails.

Related Searches:Difficulty:ModerateInstructions


Things You'll Need
  • 1/4-inch drive socket set
  • Screwdriver set
Suggest Edits
    • 1Open the glove box and remove the plastic door limiting strap, on the right side of the glove compartment, by pulling it toward you and then out of the hole it is snapped into. Unsnap the right-side and then the left-side glove compartment hinge from the hinge bar, using a screwdriver to pry the hinge as necessary, and set the loose glove compartment aside.

    • 2Unplug the wiring connector from the blower resistor, located on the center on the evaporator case to the left of the blower motor housing. Remove the two Allen-head screws, using an Allen socket from the socket set, that attach the blower resistor to the evaporator case. Slip the resistor out of the case.

    • 3Install the new resistor into the evaporator case and tighten the Allen screws securely. Examine the electrical connector. If the connector is melted, replace it with a new connector, available from the manufacturer, by cutting the old connector off with a pair of wire cutters and splicing in the new connector using butt connectors. Plug the electrical connector into the resistor.

    • 4Check the blower motor function by turning the key on and moving the speed selector switch through its range. Snap the glove compartment back into place and reconnect the door limiting strap.

Read more: How to Replace the Blower Resistor on a 2002 Grand Cherokee | eHow.com http://www.ehow.com/how_6639473_repl...#ixzz1kNnSeRXo
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  #22  
Old 01-24-2012, 10:58 AM
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Re: Broke Something Connected To My Airconditioning

Thanks Ypahihi.
I also still don't know if the blower stopped running (no noise at all), or that it still runs, but without air coming from the vents?
If the blower stopped, try wiggling the wiring at the blower motor controller and blower motor itself. (On LH driven jeeps, the blower motor sits in the underside of the HVAC housing at the passengers side. You can see it when looking under the dash. The connectors are known to make bad contact, heat up and even melt the plastic connector housing. If this is the problem, you could solder the wire in place, instead of replacing the connector assy. Not sure though if the blower motor sits at the same place on RH driven jeeps).
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