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TreyBobo

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3 engine restarts later… CEL is back and same three codes.
After some digging around I ended up disconnecting the lower air dam below the bumper, cleared all three codes, shutters work and no CEL.
Did you simply just unplug it? Mine threw the U11E9 the other day but the shutters are moving. I reset the computer and it came back 2 days later. Don’t want to take to dealership who wants $200 just to look at it
 

mikeru82

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Did you simply just unplug it? Mine threw the U11E9 the other day but the shutters are moving. I reset the computer and it came back 2 days later. Don’t want to take to dealership who wants $200 just to look at it
You can unplug it, reset the codes, and see if you get any new codes. The active air dam does not throw a code when it's disconnected.
 

RKK22

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You can unplug it, reset the codes, and see if you get any new codes. The active air dam does not throw a code when it's disconnected.
Dealing with the same problem and code. Dealer tried to charge me 900+ to replace the air shutter. I installed a bull bar that caused the fixed air dam to snag the active air dam whenever it was deployed and withdrawn. The tech said it was the shutter and not the active air dam. Definitely gonna unplug the air dam and see what I get. Can I clear the codes with a regular handheld diagnostic tool? Thanks in advance.
 

theblet

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I have a U11E9 code now. Is this the AGS or the active air dam? I have both.
 

theblet

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Update: I dont see the AGS moving at all. went ride around and had my buddy follow me in my truck. we talked on the phone and he would tell me when he got above 35mph. I never actually saw the air dam deploy (it was kind of hard to see). I got back and disconnected the Air dam connector, tape and tied it up out of the way. Then had oreilly's clear the CEL. Now we wait to see if the CEL comes back.
 

Hani9091

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Well I’m taking it in today at the local ram dealership. I told them everything that I tried to troubleshoot on my end, replaced the whole shudder twice, looked at the plug and checked for burnt spots in case of a short. But everything looked brand new. My truck only has 42500 miles on it, but my 3 yr warranty is up. They’re gonna check the computer and hopefully see the issue.
I am having an issue with the CEL for the AGS and Cooling Fan both no longer on the warranty. How did you fix your issue I have a 2019 ram 1500 with only 33500 miles
 

theblet

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I just disconnected me AAD. Check engine light never came back
 

TheBoro

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So, I have the Pro Certified Lifetime Wrap+ warranty. Would this cover the AGS? I have a 2019 Ram 1500 with 43K
 

C.D.I.N.B.

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Your active air dam was throwing a code? That's strange to me because I've removed the active air dam from both of our 5th gens, and neither of us has seen a code for this. We've been running for almost a year without them. Other members here have also removed the active air dams with no issues or trouble codes.
Same...I took my air dam off as well on my 2021...no issues, no lights...
 

Georgf

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Has anyone tried to fix this problem without disconnecting air dam? Is it possible to fix the electronics inside it and make it work again, without new error codes?
 

5thGenFitz

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First off, thank you everyone who's contributed to this post!
The Ram dealerships by me are code readers and parts throwers, they couldn't fix a bologna sandwich.

I have a 2019 Ram 1500 Big Horn, V6 47,000 miles (Leased Vehicle, turning in 2 months)
Out of nowhere I noticed my electric fan kick on and stay on the entire time I drove home from my son's baseball game.
Electric fan sounded like somebody put a shop vac under my hood!
Got home and check engine light came on
Next morning, Cold Start and electric fan kicked on instantly
Went to AutoZone to get them to scan for codes (Got lucky that the guy hadn't picked up his dinner yet and he handed me the code reader and said do it myself)
Checked and got (3) Code U11E9 as shown in picture
Looked up code and saw U11E9 is for AGS (Didn't know it had AGS)
Checked and all louvers in AGS open (IF all/some were closed it would make sense why fan would stay on)
Cleared codes (FYI I was lucky that he gave to me to use myself, apparently AutoZone instructs employees not to clear codes)
Started back up, 1 minute later fan on entire time, new check engine light

Got back on the interwebs and saw this post and others like it, individuals & dealerships throwing parts at it and still no luck
Here's what solved it for me:
Found out what an active air dam(n) is and I have it, some say unplug, some say buy $20 delete harness etc
Go out to truck, unplug active air dam
Start Truck up
No electric fan instantly
Turn dash to digital temp gauge
Drive AutoZone 2 miles away got up to temp about time I pulled in parking lot
Borrow Code Scanner and read it myself (Was told they could not clear codes) cleared codes
Started Back up
Drove around 30 minutes in this heat (notice it's about 100F here in Michigan!) no electric fan unless needed (Watched the temp gauge go up and down each time it was necessary)
No codes, no high temps, AGS open. So far so good.

Again, I want to thank people who contributed to this post and others on here about code U11E9, AGS & Active air dam
Sorry for the long post, just trying to give people an idea of what I did to get rid of it.
 

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theblet

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First off, thank you everyone who's contributed to this post!
The Ram dealerships by me are code readers and parts throwers, they couldn't fix a bologna sandwich.

I have a 2019 Ram 1500 Big Horn, V6 47,000 miles (Leased Vehicle, turning in 2 months)
Out of nowhere I noticed my electric fan kick on and stay on the entire time I drove home from my son's baseball game.
Electric fan sounded like somebody put a shop vac under my hood!
Got home and check engine light came on
Next morning, Cold Start and electric fan kicked on instantly
Went to AutoZone to get them to scan for codes (Got lucky that the guy hadn't picked up his dinner yet and he handed me the code reader and said do it myself)
Checked and got (3) Code U11E9 as shown in picture
Looked up code and saw U11E9 is for AGS (Didn't know it had AGS)
Checked and all louvers in AGS open (IF all/some were closed it would make sense why fan would stay on)
Cleared codes (FYI I was lucky that he gave to me to use myself, apparently AutoZone instructs employees not to clear codes)
Started back up, 1 minute later fan on entire time, new check engine light

Got back on the interwebs and saw this post and others like it, individuals & dealerships throwing parts at it and still no luck
Here's what solved it for me:
Found out what an active air dam(n) is and I have it, some say unplug, some say buy $20 delete harness etc
Go out to truck, unplug active air dam
Start Truck up
No electric fan instantly
Turn dash to digital temp gauge
Drive AutoZone 2 miles away got up to temp about time I pulled in parking lot
Borrow Code Scanner and read it myself (Was told they could not clear codes) cleared codes
Started Back up
Drove around 30 minutes in this heat (notice it's about 100F here in Michigan!) no electric fan unless needed (Watched the temp gauge go up and down each time it was necessary)
No codes, no high temps, AGS open. So far so good.

Again, I want to thank people who contributed to this post and others on here about code U11E9, AGS & Active air dam
Sorry for the long post, just trying to give people an idea of what I did to get rid of it.
Great news and welcome!
 

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