CEL - Code P0420, 1.3k miles, 2015 EcoDiesel built in January - Jeep Garage - Jeep Forum

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Old 08-02-2015, 07:30 PM
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CEL - Code P0420, 1.3k miles, 2015 EcoDiesel built in January

So my 2015 Jeep EcoDiesel threw a CEL on my way back from folks this afternoon, about a 45 minute drive. Hot as Hades here in Central Texas today. Threw the code 5 mins after startup.

Ran the OBD-II scanner when I got home, saw it was P0420.

Just bought the truck in June, it had about 1/3 of DEF fluid in it. Dealer gave me two MOPAR 2.5g jugs of their DEF and I put in one, and put the other in the house to keep fresh. Now has just over 1,300+ miles on odometer.

Just had it in the local dealer for the TSB 18-022-15 REV. A & 21-045-15, but that code was not one of the specific codes listed. I've read the threads here about this code, but I thought it was more so limited to the MY 14 EcoDiesels?

I cleared the code with my scanner and will see if it comes back; any thought or suggestions? Thanks!

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Old 10-12-2015, 08:52 PM
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Re: CEL - Code P0420, 1.3k miles, 2015 EcoDiesel built in January

I have been dealing with this issue P0420 on my 2015 Jeep GC EcoDiesel also since June. Been in for service 5 times. Last time they changed cat and rest of sensors they hadn't changed up till now including wire harness for sensors. Had the jeep for 9 days before CEL came on this morning. Waiting on a new flash but won't be ready for a month
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Old 10-13-2015, 04:02 PM
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Re: CEL - Code P0420, 1.3k miles, 2015 EcoDiesel built in January

Add me to the list. Another sensor install tommorrow for same code.


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Old 10-13-2015, 06:23 PM
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Re: CEL - Code P0420, 1.3k miles, 2015 EcoDiesel built in January

See 18-023-15 REV.C Dated October 12th.

http://www.wk2jeeps.com/tsb/tsb_wk2_1802315c.pdf

Make sure you print this out and give this to your dealer!!!
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Old 10-13-2015, 06:44 PM
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CEL - Code P0420, 1.3k miles, 2015 EcoDiesel built in January

Thanks for the RRT but seems to apply to 2014 models not 2015
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Old 10-13-2015, 07:15 PM
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Re: CEL - Code P0420, 1.3k miles, 2015 EcoDiesel built in January

Oops! Sorry Nookie, I shot before acquiring the target LOL !

Given the same issue with my 2014, betcha they have a reflash for yours by month end
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