2013 Wrangler Ultimate Rubicon ECU Update - Jeep Wrangler Forum

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Old 02-28-2014, 08:59 AM
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2013 Wrangler Ultimate Rubicon ECU Update

I was told by my dealer that there is an update for the ECU in my 2013 Rubicon. They were unable to provide me a listing of what the update is changing.

Does anyone here know where I might be able to obtain a listing of the ECU changes?

Thanks in advance.
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Old 02-28-2014, 10:32 AM   #2
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I can 'One Up Ya' on this... I took my 2013 JKU in for the recall on the Transmission Oil Cooler/Power Steering issue and without asking me, they went ahead and performed the ECU update. I have yet to even receive a notice on this from Chrysler. Anywho, they just ran the update - did I mention I have an AEV Procal.?. If ya saw a jeep with 38 inch tires and a 5 inch lift one would think, Hmmm I bet their speedometer has been programmed accordingly, ya would think. I had to reprogram some things they overrode. Kinda pissed me off. And they did a crappy job on the Power Steering tube recall. This was at Patt Lobb Jeep in Frisco, Tx. The codes for the ECU warranty work are as follows: (from my receipt)

Perform RRT 12-052 Completed RRT. Reconfigure Message Center LOP 1889019B

Perfrom RRT 12-066 Reprogram WCM. LOP 18802891

Also, when I questioned exactly 'what' the ECU was changing my tech said the same, didn't know specifics but it came down from Chrysler. Hope this helps.

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Old 03-05-2014, 10:00 AM   #3
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I asked the same question when they upgraded my ECU and got the same vague answer...
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ecu , rubicon , upudate

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