LX3310 U0077 Error Code

   / LX3310 U0077 Error Code #1  

KDubU

Member
Joined
Sep 19, 2022
Messages
35
Tractor
Kubota
I have a LX3310 with approx. 65hrs on and use it for residential purposes only. Most wood collecting on our acreage and blowing snow in the winter to grading drive. I have gone through three regen cycles with no issues, all were level 1 and had the tractor revs high, all went well. Two weeks back I drove her about 2 miles to do a favour for someone to move and spread a couple loads of wood chips they had. I drove it in 2nd at max revs and then put her into 4wd when I got to their place, kept the revs max and spread the chips around for an hour. I then proceeded back home in 2nd, max revs and during the whole time, no indicator lights for a regen occurred and no warning beep or beeps. When I got home, parked her in the garage and sat in the cab for 10-15 at min revs to cool her down. Again no warning lights or beep(s). Went out yesterday to start her up, waited for the glow plug light to turnoff and she started fine. I heard a single beep and of course looked at the panel assuming it was asking for level 1 regen as it was a single beep only. I see the red indicator light on and am thinking what is that? I stopped the tractor and got out the user manual and see it’s level 4 and needs a dealer service? I am confused over how it went to level 4 and did not give me any warning lights or beep(s) prior to this? Also when I did that favour, I figured worse case if regen is needed that running at max revs for a level 1 would be fine. What am I missing here?

Tractor is going in Wednesday this week and I think the ECU should tell the dealer soemthing but my mind is like WTH! What did I miss???
 
   / LX3310 U0077 Error Code #2  
I don't know but you sure are making me glad I do not own a new enough tractor to involve regen !! ... my sympathies...
 
   / LX3310 U0077 Error Code
  • Thread Starter
#3  
I don't know but you sure are making me glad I do not own a new enough tractor to involve regen !! ... my sympathies...
I agree. I had a 2011 MX5100 with backhoe and loved it! Sold because we moved a longs ways a way and would not need it where we landed. Then things changed and we move back from where we came from and needed to buy a tractor again. The regen has not been a huge deal up to now so am confused over why this occurred.
 
   / LX3310 U0077 Error Code #4  
Getting to level 4 dpf goes through quite a few flashing lights and beeping. If you are hearing a single beep with the check engine light on, I suspect it is reporting some other problem unrelated to the dpf.
 
   / LX3310 U0077 Error Code #5  
I agree. I had a 2011 MX5100 with backhoe and loved it! Sold because we moved a longs ways a way and would not need it where we landed. Then things changed and we move back from where we came from and needed to buy a tractor again. The regen has not been a huge deal up to now so am confused over why this occurred.
In spite of my apprehension over owning a newer machine and the rigors of DPF and regen there is strength in numbers. So many are dealing with those things these days it will get solved in a jiffy.
 
   / LX3310 U0077 Error Code
  • Thread Starter
#6  
Getting to level 4 dpf goes through quite a few flashing lights and beeping. If you are hearing a single beep with the check engine light on, I suspect it is reporting some other problem unrelated to the dpf.
Tks. I am thinking along the same lines as missing all the various warnings in a cab with no radio and the only noise is the engine seems odd. This is why I’m so confused over what has happened. I guess tomorrow I will find out once the dealer has had a look.
 
   / LX3310 U0077 Error Code
  • Thread Starter
#7  
In spite of my apprehension over owning a newer machine and the rigors of DPF and regen there is strength in numbers. So many are dealing with those things these days it will get solved in a jiffy.
I hope it will. Not that I use my tractor daily but when it is not working, it sucks!
 
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   / LX3310 U0077 Error Code
  • Thread Starter
#8  
So I went out and looked at the tractor again and it is not a regen level 4 issue. Instead I see a U0077 code flashing and sometimes U0076 which I believe is soem communication error with the ECU? I found the U0076 error info, anyone know the U0077? Tks
 
   / LX3310 U0077 Error Code #9  
Couldn't find anything on U0077 either, but one forum comment said almost all Uxxxx codes are ECU communication related.
 
   / LX3310 U0077 Error Code
  • Thread Starter
#10  
Couldn't find anything on U0077 either, but one forum comment said almost all Uxxxx codes are ECU communication related.
Agreed. I think I found the problem….mice.
 

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