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Hope to gain your insight on this one. 2015 GC Limited with 3.0 Ecodiesel. Two weeks ago the CEL came on with a P202E Reductant Injection Valve Circuit Range/Performance code. I have an OBD2 reader and reset the code. I pretty much suspected that the DEF froze.

My issue is that this code is one of the permanent emissions codes that regulators made Jeep put into the ECM - this one told me that in 200 miles my engine would no longer restart. Not fun when you are 120 miles from the dealership. I won't go into my feelings on this type of thing generally.

I made it to the dealer, who promptly charged me $250 for cleaning and testing the DEF injector (all good), clearing the P202E code, and doing a parked regen.

My question is whether any of you know what the procedure is to clear the P202E code. My understanding is that it can only be cleared with a drive cycle test. I don't know what that is and didn't want to waste my 'miles to no-start' trying to figure it out.

Thanks for any help.
 

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Yeah, sounds like your DEF froze. Resetting via AlfaOBD could be an option. However, if the sensor or DEF injector was harmed by the freezing, the code would come back.

I get a P203E code for faulty DEF level sensor. I'm able to reset & continue on my way.

FYI, there is a work around for if the countdown goes to 0. It's simply a jumper on the starter relay that will allow you to start & run vehicle until the next time you turn it off.
 
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