U11E9 Active Grille Shutter error back again a year after replacing it.

[howster]

Hi,
Replaced the Active Grille Shutter (AGS) on my 2019 Ram 1500 Laramie myself 12-18 months ago after getting the U11E9 code. Incidentally, something I'd never want to do again given the complexity, frustration and awkwardness of doing it lying on the ground. Now the error is back again so wondering what is causing it. I'm not a mechanic btw. Cleared the error code to remove the check engine light but it returns after a few days. Truck does <150 miles light duty a week for last year so hardly wear and tear. I understand unplugging the AGS also won't pass State Inspection. Hoping it's as an easy fix involving a computer bug, system reboot or fuse change? I cant be putting a new AGS into it every year. The AGS is in open position and I still I have the old one. All help appreciated. Thanks

 

[theblet]

It may be your active air dam that's bad. It is tied in to the AGS. try disconnecting that and have the code cleared to see if it comes back. If it is the AAD, there is an extended warranty on the AAD.

 

[howster]

Ok thanks. It looks like to get at the electrical connection (I believe there's only one) to the little motor within the AGS I have to take apart the front of the car,

,which I don't have the sanity to do again.
I'll have to find out what an AAD is in beginner terms ....YouTube here I come.
I did manually close the AGS shutters and restarted the truck and they opened right back up. To an amateur like me that would suggest the AGS is fine and it's a computer glitch? It's 80F here today so open status would be right. I also disconnected the -ve on battery for 20mins to reset car computer. Will report back if engine light comes back. I erased the U11E9 code using an Autel AutoLink AL329 OBD2 Scanner https://a.co/d/5KsrQl2. When I run it after all my "fixes" the engine light is off but the OBD2 scan says the U11E9 is at "pending" on page 1 and at "permanent" on page 2 of the scanner display. So much recon for a part the car doesn't actually need but must have working for State Inspection. This is a $2k+ fix in MA for parts and labor.
Thanks for help.

 

[theblet]

For the AAD, all you have to do it crawl under the truck and unplug it, tape up the connectors up, and zip tie them out of the way. No need to remove anything.

 

[6of36]

Ok thanks. It looks like to get at the electrical connection (I believe there's only one) to the little motor within the AGS I have to take apart the front of the car,

,which I don't have the sanity to do again.
I'll have to find out what an AAD is in beginner terms ....YouTube here I come.
I did manually close the AGS shutters and restarted the truck and they opened right back up. To an amateur like me that would suggest the AGS is fine and it's a computer glitch? It's 80F here today so open status would be right. I also disconnected the -ve on battery for 20mins to reset car computer. Will report back if engine light comes back. I erased the U11E9 code using an Autel AutoLink AL329 OBD2 Scanner https://a.co/d/5KsrQl2. When I run it after all my "fixes" the engine light is off but the OBD2 scan says the U11E9 is at "pending" on page 1 and at "permanent" on page 2 of the scanner display. So much recon for a part the car doesn't actually need but must have working for State Inspection. This is a $2k+ fix in MA for parts and labor.
Thanks for help.

AAD is active air dam. Below front bumper.

 

[RobsRam]

My 2019 Ram Etorque showing same code U11E9 Dealer had truck all day and is ordering a new AAD part CXPKX961AA today. Don't have much faith that this is the fix after researching this forum.

 

[theblet]

My 2019 Ram Etorque showing same code U11E9 Dealer had truck all day and is ordering a new AAD part CXPKX961AA today. Don't have much faith that this is the fix after researching this forum.

It might, at least for awhile. You could just remove it too.

 

[Habittel]

Here’s my story. I have a 2021 1500 Limited. Back in February the U11E9 error started throwing the check engine light. The truck went into the shop in March. They attempted replacing the AGS and some of the harness connectors. After getting it back the issue came back within a few days. It made three trips to the dealership by mid April. They replaced the air dam and more connections. Still no luck. Ram opened a Star Case. I took the truck back in May and didn’t get it back until July. They replaced the PCM, starter, and the main wiring harness. I got the truck back and within two hours the check engine light returned. Ram opened another Star Case and kept the truck another four weeks. They replaced the air dam again. I drove the truck 32 miles and the light came back on. The dealership doesn’t know what to do at this point and they don’t have much faith in the Stellantis engineers. It’s back in the shop again. So far it’s been in the shop 124 days this year. From my experience, they have no idea how to fix this issue. The dealer says everything associated with that system has been replaced, so now we’re left to keep replacing parts and hoping they inadvertently fix it. I don’t have any faith in the reliability of the truck at this point. If I get a positive update I’ll let everyone know.

 

[Jako]

Here’s my story. I have a 2021 1500 Limited. Back in February the U11E9 error started throwing the check engine light. The truck went into the shop in March. They attempted replacing the AGS and some of the harness connectors. After getting it back the issue came back within a few days. It made three trips to the dealership by mid April. They replaced the air dam and more connections. Still no luck. Ram opened a Star Case. I took the truck back in May and didn’t get it back until July. They replaced the PCM, starter, and the main wiring harness. I got the truck back and within two hours the check engine light returned. Ram opened another Star Case and kept the truck another four weeks. They replaced the air dam again. I drove the truck 32 miles and the light came back on. The dealership doesn’t know what to do at this point and they don’t have much faith in the Stellantis engineers. It’s back in the shop again. So far it’s been in the shop 124 days this year. From my experience, they have no idea how to fix this issue. The dealer says everything associated with that system has been replaced, so now we’re left to keep replacing parts and hoping they inadvertently fix it. I don’t have any faith in the reliability of the truck at this point. If I get a positive update I’ll let everyone know.

Really sorry for your situation, 124 days is rough with 4 months to go and no solutions so far.

 

[Billy T.]

Is it possible to code the AGS out with Alfa OBD? Bought my truck with aftermarket bumpers and they cut the harness to the AAR... also, just got my 21 3.0 out of the shop after 5 weeks dealing with a no start/PDC issue at 34k miles.