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Check Engine - DEF problems

170K views 267 replies 86 participants last post by  John Jeep  
My saga continues along many of you...
I reported on the 19th my mil light went off after 5 days and all seemed ok despite the code reading P20EE
Today, Def fluid was getting low so I added container and as soon as I started to drive the car, light illuminated and the message appeared about bad def and to see the dealer. Also received a new code: P2BA9
Those of you who are further along with these issues- what is the best course of action?
Updates:
12/29/14: dreaded count down light came on - 200 miles and car will not start thereafter.
Current mileage is at 13,000. I literally taped a note for the mechanic where scanner plugs in with notes from this forum! Asked to please order the parts now.
Appointment at dealer in morning...
12/30/14: pick up from dealer. Check engine light now off. They performed a number of the software upgrades.... They Report its fixed?
1/2/15: check engine light back on. After Approx 80 miles , Same P20EE code.
1/6/15: back to dealer , now ordering the cat but it's on back order with no date provided. Gave me a Dodge Dart to drive for now. Said the countdown could occur again. I Asked if they did a def flow test... But No response.
I've had the same check engine light and code errors that everyone else has had with the DEF system. After multiple trips to multiple dealerships in OCT-NOV 14 we finally were able to get the problem fixed (at least after several thousand miles there has been no check engine lights). The final fix was the replacement of the catalytic converter, which the dealership had to remove from a new JGC on their lot because it was apparently backordered.

I'm currently fighting with Jeep to get credited for a $200 service that the original dealership charged me for replacing the DEF fluid and cleaning the tank, which they said was the wrong type of DEF. Basically they told me that I had to use MOPAR DEF or nothing. Which BTW is incorrect because the manual states that I can use any DEF that complies with specific ISO standards, and in the end the DEF fluid replacement did not fix the problem because the check engine light came on again several days later.
 
My issues with my 14 JGC ecodiesel are similar to everyone else on this thread, and after much trial and error in replacing parts on the DEF system, and months in service, the dealership finally replaced the catalytic converter and this has finally fixed the issue, with no problems for several thousand miles. Hope this helps those who may be having issues.

If the issue comes up again I am trading it in on any vehicle that is not made by Chrysler.