For safety and other considerations, any vehicle or vehicle accessory modifications, additions, alterations or changes should be preformed using the proper tools and equipment. Any such modifications, additions or changes performed using information or ideas from this website are done so at your own risk and expense.
After saying that, the back drive connector should not break under normal conditions.
As ALL the access hole blend door repairs rely on utilizing the shaft of the original back drive connector piece.
I designed an EASY No Dashboard Removal fix for the broken back drive connector.
I designed this repair just after I designed my original Blen Dor Single Control repair as a backup if the problem did arise.
This fix has been used a few times. The fix was used because the people had broken the back connector piece trying to do the blend door repairs without the proper installation instructions.
Most likely watching online videos, reading poor & incomplete installation instructions.
The Blen Door Store has a NO Dashboard Removal fix for the broken drive connector.
This repair procedure is Free for the Blen Dor Store’s customers who have purchased a
no dash removal blend door item!
A short version of how the repair is done.
Lower the glove box – by hand - See instructions below or visit the Tech Tips page
Remove the actuator motor – You will need a Phillips screw driver
Cut an access hole in the plastic HVAC box – A multi-purpose cutting bit is included with the kit, you will need a rotary type of cutting tool, like a Dremel, RotoZip, etc. Or you could do the cutting by hand with any type of small cutting tool, it will just take longer doing it by hand.
Remove the broken blend doors – by hand
Install the new Blen Dor kit – easy, just slide the new doors in place – NO assembling parts, NO screws or other fasteners.
Replace the actuator motor
Close the access hole – Replace the wall piece of plastic you cutout - A length of aluminum tape is supplied to cover the groove made by cutting the wall.
Close the glove box – Your Done!
It's almost as easy as what you just read, the most time consuming thing to do, is cut the access hole.
The job should take between 30 minutes to 1 1/2 hours. Depending on how long it takes you to gather your tools, etc.
All of the no dash removal – Access Hole repairs are done the same way.
The Limited, Overland and other special edition models. All models that have the dual control Automatic Zone Control (AZC) system will allow you to read the fault codes from either the front heater control unit or the Programmable Communication Interface (PCI) bus using a DRBIII scan tool.
All the Blen Dor repair kits will work with the RHD vehicles.
I have sold kits to the UK, Australia, New Zealand and other RHD customers with no problems reported.
100% RHD customer satisfaction.
The acess hole procedure will be the same as for the LHD vehicles.
The RHD hvac box is flipped left to right so the information and fault codes are the same.
Visually the instruction Pictures, etc are opposite for left and right hand vehicles.
The Blen Dor Store has installation instructions with pictures for the RHD vehicles.
A Blen Dor Store customer explains their problems with having the dealer repair their broken blend doors.
Thank you so much for all your help. This is my fourth time fixing this same problem. I paid for the first two times and the Chrysler gave me a good will to fix it the third time. It has been 15 months since they fixed it and it is messed up again. I called the Chrysler corp. and they didn't even want to talk to me about this ongoing problem. You have no idea how happy my husband and I were when we found these products. The dodge dealer was going to charge us $1,000.00 to fix it, so this will save us a great deal of money. Thank you again for everything
If you have the Jeep GC with the dual control Automatic Zone Control (AZC) system, I would recommend that you first check the AZC fault codes.
To read the fault codes:
If there are no fault codes, the “00” display value will remain in the window.
If there are any codes, each will be displayed for one second in ascending numerical sequence (note: no effort is made to display faults in the order they occurred). The left side set temperature display will be blanked and the right side set temperature display will indicate current and historical codes (8 historical max) presently active.
Once all codes have been displayed, the system will repeat the fault code numbers. This will continue until the left side set temperature control is moved at least one detent position in either direction, by pressing both the A/C and Recirc buttons at the same time, or the ignition is turned off.
To calibrate the AZC - HVAC system
Yes, lower the glove box, remove the blend door actuator motor that is behind and the glove box and to the left of the glove box opening.
First, visually check if the Stop Tab is broken off the side of the drive connector. See Tech Tips for a picture of the drive connector stop tab.
Then turn the white plastic drive connector the actuator motor was attached to. If it turns more than 90 degrees, the stop tab on the drive connector has broken off and the blend door shaft is broken.
To lower the glove box. There are two plastic tab stops sticking up past the top of the back wall of the glove box that will hit against rubber stops. Fold these rubber pieces to the side (They are attached only on one side so as to act as a hinge point)
Remove the dampener arm on the right side of the box by sliding the end up and out of the slot. The glove box should be hanging down at this point. See Tech Tips to view pics on this procedure
You have the three common 99/04 Jeep GC HVAC system fault codes.
52 = AI (Recirc) door travel range too large. This is the code that indicates a recirculation door problem.
54 = Left temperature door travel too large. This is the code that indicates the driver’s side blend door problem.
56 = Right temperature door travel to large.This is the code that indicates the passenger’s side blend door problem.
If you are NOT planning to remove the dashboard
You have two options for the blend door problem.
1. The Blen Dor Single Control (ndr) no dash removal kit – This kit is usually for the single control systems or when the dual control systems passenger side actuator motor has failed. With this kit you will lose control of the passenger side control knob. Please read the item writeup. This kit can be used in both the single and dual control systems
2. The Blen Dor Dual Control (ndr) NO dash removal kit – This kit will let you use both the driver and the passenger side control knobs.
You have one option for the recirculation door problem.
Since you have the #52 and if you are still getting an air flow, the recirculation door is mostly likely hanging in place. If it breaks off and falls it could block the air flow completely.
The Blen Dor Recirculation Door (ndr) is a NO dash removal repair kit – This kit is just a couple of bent steel rods with the directions on how to lift the door up off the blower and attach the door so it will not fall and a couple of things to watch out for. Please read the item description about the compromise.
This is the only recirc door repair that is done thru the glove box area.
If you ARE going to remove the dashboard you would use these items
15 = Left temperature door not responding
This is the code that indicates the driver’s side blend door actuator motor problem.
That motor is directly behind the glove. Easy to test and/or easy to replace.
To test the driver’s side actuator motor – Lower the glove box, the motor will be to the upper left corner of the opening, unplug the wire connector, remove two screws holding the motor. Use a couple of test leads and a 9 volt battery or use the vehicle’s battery touch the negative wire to one of the motors flat metal leads and touch the positive wire to the other metal lead on the motor. It does not matter which is negative or positive.
16 = Right temperature door not responding. This is the code that indicates the passenger’s side actuator motor problem.
If the blend doors are binding and causing the actuator motor to stop, you would have the #23 or #55 - Right temperature door travel to small.
The blend doors would have to be broken for them to bind and the broken blend doors would show a fault code.
As this motor is behind the HVAC box on the firewall side, it can not be accessed without removing the dashboard and HVAC box from the vehicle.
Without cutting an access hole in the HVAC box for a visual check, you will have to rely on the Fault Code system for this actuator motor problem.
21 or 53 = Left temperature door travel to small – Driver’s Side
22 or 54 = Left temperature door travel to large – Driver’s Side
23 or 55 = Right temperature door travel to small – Passenger’s Side
24 or 56 = Right temperature door travel to large – Passenger’s Side
All of these indicate a blend door problem. 54 & 56 are the most common.
The lower fault code numbers are current codes.
The higher numbers are historical codes.
15 or 47 = Left temperature door not responding – Driver’s Side
16 or 48 = Right temperature door not responding – Passenger’s Side
19 or 51 – AI (Recirc) door travel range too small
20 or 52 – AI (Recirc) door travel range too large
The above codes indicate a recirculation door problem. #52 is the most common.
14 & 46 – AI (Recirc) motor was not responding
These are the codes that indicate the recirculation door actuator motor problem.
This motor at on top left side of the recirculation door housing.
This motor can not be replaced without removing the dashboard.
I do have a NO dash removal fix to get around the recirculation door actuator motor failure, Please read the item description.
Yes, the Blen Dor Store ships to customers all over the world.
Australia, Belgium, Bulgaria, Canada, Chile, China, Costa Rica, Estonia, Finland, France, Germany, Greenland, Iceland, Ireland, Israel, Itlay, Japan, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal, Russia, Slovakia, South Africa, Spain, Sweden, Switzerland, UK, and Uruguay.
Anywhere there is a 99/04 Jeep Grand Cherokee!
Depending of which delivery service you have chosen, it will take between 3 – 6 days for US destinations.
All other countries could take between 6 – 14 days and possibly more.
Yes, for orders shipped to non-US destinations, import duties and/or taxes may be imposed by your local government on shipments from outside your country. These charges are separate from the Blen Dor Store charges and are beyond the control or ability to predict. These charges (if any) are made payable to your government.
You are responsible for paying any taxes, duties and/or customs fees charged by your government. Please check with your local postal service for more information.
A Satisfied Customer’s Testimonial
Received your repair kit yesterday. Thanks for getting it to me quick. Installed it this afternoon and it works like a charm! (you already know that though!) The instructions were very easy to understand and very detailed. You have thought of everything.
Just wanted to say thanks for saving me $1500+ dollars.