Attention: TDR Forum Junkies 
Cummins2014
TDR MEMBER
You guessed it, got the Service DEF system See Dealer on the screen this past weekend. After a few miles got the 5 MPH max speed in 125 miles service DEF system . At that point I was too far from my home dealer, and close to where we were going on a hunting trip, so hunting we went. Called a dealer from the hunting camp that was within the 110 miles that I had left on the countdown , and asked about the particulars, and what had to be done, got the information.
Well yesterday on the way to the dealer I called, I was getting the countdown popping up on the screen every mile, I finally left it on that screen, well after a few miles around the 80 mile mark the warning went away, and was not in the stored messages .
Not wanting to take a chance parked the fifth wheel at a truck stop for the night close to the dealer I called, and got in this morning to be checked out. Of course it still had the check engine light on.
Here is the findings quote : " Found code stored for DEF Quality ( P207F ) Checked DEF condition and found within spec. Tech inspected DEF injector and found OK , cleaned off a little deposits and reinstalled . Ran DEF flow test and found good. Cleared codes and ran self test . Pass. All good now."
In my case it healed itself, other then needing the codes cleared. and in reality there was nothing really wrong. It stopped the mile countdown, and at that point I could have driven for who knows how long. Per the service tech, he said that are a very sensitive system. He said this DEF thing is a constant problem they see, and this is a pretty small dealership in a fairly small town.
I have used nothing but Peak DEF, purchased at Walmart. The store I usually buy from has a date on it. The date on this last box was 10/06/16. I am assuming that is the sticker that the store puts on them when received, not necessarily the manufacturing date. I added a box of 2.5 gals. last Wednesday which put it on the full mark. The tech also told me sometimes when it gets filled it triggers that service warning after a few miles
I got the same message last March it flashed on the screen just long enough to read, it did that a couple times, never got a check engine light or countdown. All was good until now.
Well yesterday on the way to the dealer I called, I was getting the countdown popping up on the screen every mile, I finally left it on that screen, well after a few miles around the 80 mile mark the warning went away, and was not in the stored messages .
Not wanting to take a chance parked the fifth wheel at a truck stop for the night close to the dealer I called, and got in this morning to be checked out. Of course it still had the check engine light on.Here is the findings quote : " Found code stored for DEF Quality ( P207F ) Checked DEF condition and found within spec. Tech inspected DEF injector and found OK , cleaned off a little deposits and reinstalled . Ran DEF flow test and found good. Cleared codes and ran self test . Pass. All good now."
In my case it healed itself, other then needing the codes cleared. and in reality there was nothing really wrong. It stopped the mile countdown, and at that point I could have driven for who knows how long. Per the service tech, he said that are a very sensitive system. He said this DEF thing is a constant problem they see, and this is a pretty small dealership in a fairly small town.
I have used nothing but Peak DEF, purchased at Walmart. The store I usually buy from has a date on it. The date on this last box was 10/06/16. I am assuming that is the sticker that the store puts on them when received, not necessarily the manufacturing date. I added a box of 2.5 gals. last Wednesday which put it on the full mark. The tech also told me sometimes when it gets filled it triggers that service warning after a few miles
I got the same message last March it flashed on the screen just long enough to read, it did that a couple times, never got a check engine light or countdown. All was good until now.
