My 2012 Jeep had the same problems with engine light code P06DD. It would come and go. The dealer follows Chrysler's trouble shooting guides that were apparently written by Chrysler's engineers. First they check the codes and flash the PCM and send you on your way. Second they change the oil and check the oil filter (even if they know its ok). The third time they want to get down to business and check the oil pump for a bad suction tube or oring. At this point I told them I wanted a new oil pump, but they told me they have to follow the trouble shooting steps. Well they found nothing wrong with the oring or tube so the next step was to replace the oil pump (they had to talk to Chrysler first before they could do this). The oil pumps were on back order. After the new oil pump install I haven't had anymore problems or engine light warnings. What amazes me is mechanics no longer can trouble shoot problems on their own experience they have to follow Chrysler's written procedure even if they know what the problem is. What also amazes me also is you can buy a new $33k Jeep and it can break down on you in less than 3000 miles. That being said out of the many vehicles I have owned My Jeep is still my favorite..
Hmm.....oil pumps on backorder...there's a red flag right there.
The Techs have had to follow Manufacturer directions for a very long time now, several decades at least.
If you take it to an independent shop, they'll do whatever they want, but you're not going to get that covered under warranty. (and probably not fixed either)
In reality, it makes perfect sense. It IS frustrating that the process can take several visits and is an inconvenience, but there is most definitely a method to their madness.
It keeps the guesswork to a minimum and keeps their defect tracking system organized, so in reality in the long run it's much better for everyone.
If you ever find a manufacturer that has NO problems with thier complex mechanical systems, please let me know as I don't believe this company exists.
(yeah Honda does pretty good, and don't even bring up BMW..they're a joke)
It's not like everyone at Chrysler is sitting there laughing at you. In todays corporate world you can bet your bottom dollar that they take this very seriously. I do believe that they are basking in their success a little at this point and sincerely hope that someone is still steering the ship...