Jeep Grand Cherokee AC and heater codes 52 and 54. Blend door actuators

Here we discuss the blend door operation and calibration.
Disclaimer: This video is intended for educational purposes. Refer to the manufacturer for specific procedures and always practice proper safety .

[@byronwhitney665]

This was very helpful. I had codes 52-54-&56. Once I removed the actuator, I discovered that 1/2 of the shaft on the back side had broken off. I bought a new part at Napa ($70). I installed it and my problem was resolved. Everything works now. The blend doors work just fine. I got AC and full heater controls. Thank you for sharing this knowledge.

[@onedisasterattatime9116]

Thanks a bunch dude...totally helped... totally

[@mikeray5475]

Nvm I found my actuator and turn it

[@Happy4Go2Lucky]

That was very helpful showing the codes where the website is. I had to rewind your video to see the search bar to get the correct search Bar for the error codes. It was very helpful explaining how to use the climate control knobs to read the error codes. Then I had to video the error code since I have so many of them with my telephone. Goodyear tire was able to recommend a service shop that is able to take the dash apart to repair the problem. Firestone used to do that kind of work but they told me that their one technician out of many stores in Denver retired. I tried to get a quote from the dealer service department but all I got was a diagnostic service fee of $160. One year ago I asked how much it would be to replace everything under the dash, since the vent selector was doing nothing and I didn’t have heat or AC. They gave me a ballpark estimate of $3000. Well with five cars I can’t spend that kind of money on heat and AC when the vehicle needs New tires.

[@terrystratford1235]

Yeh it's every 20 ignition cycles it will recalibrate. Any stored codes are wiped every 79 ignition cycles!

[@ScatPackJack]

‘01 WJ: Heater core works you can feel the vents are warm and actually start to blow as you drive fast from outside air getting in. Blend doors work. Blower motor works… hooked it straight up to 12v and runs great. The blower motor fuse is good and getting 12v. Not sure what the issue is but I’m close to just wiring it to 12v and putting a switch on the hot wire when I want it blowing full speed. Any thought what the issue might be? Don’t want to just start replacing parts and it’s -5° outside. Great video btw

[@StockCarGuy]

weird, i put a new one in mine and i just turned it to cool temp and it moved, however little to no air out the vents. checked the blend doors and they’re not cracked and are moving. I’m not sure what the problem is, possibly i calibrated the actuator wrong?

[@mikeray5475]

23 38 52 pop up on my 95 grand Cherokee how to bypass and switch my self if so

[@multiserviciosgeneralesvy4041]

Por favor cómo hago con el código 20 me lo está marcando mi aire acondicionado de mi jeep grand Cherokee 2002

[@terrystratford1235]

Could code 54 and 56 door travel too far, be the reason for no airflow? I understand the motors have to be replaced in a certain way, is it doors up or down, then replace the actuator?

[@louiebloodlust]

Do you know where the passenger one is? I have the same issue but can't seem to find the passenger actuator

[@comicman8724]

So long story short you had to replace the actuator and it fixed the problem?

[@user-qk7dk9ob3f]

Was 13 code

[@Happy4Go2Lucky]

That was very helpful showing the codes where the website is. I had to rewind your video to see the search bar to get the correct search Bar for the error codes. It was very helpful explaining how to use the climate control knobs to read the error codes. Then I had to video the error code since I have so many of them with my telephone. Goodyear tire was able to recommend a service shop that is able to take the dash apart to repair the problem. Firestone used to do that kind of work but they told me that their one technician out of many stores in Denver retired. I tried to get a quote from the dealer service department but all I got was a diagnostic service fee of $160. One year ago I asked how much it would be to replace everything under the dash, since the vent selector was doing nothing and I didn’t have heat or AC. They gave me a ballpark estimate of $3000. Well with five cars I can’t spend that kind of money on heat and AC when the vehicle needs New tires.