While out on the Rubicon yesterday I had a check engine light come on. I used a Snap-On scanner and found a U11C2 code (implausible/ missing transmission) as well as 2 transmission codes P0731 and P0734. It ran fine for a bit but then went into what felt like a limp mode. It did multiple different odd things like not moving at all when in gear to only working in 4 low for a bit, then only working in 4 high for a bit. After clearing the code and getting back on the road it was fine and the light hasn’t come on yet. I did tow it home on a trailer so I haven’t had too many miles on it since.

My day consisted of driving in deep snow and also deep water (approx 2 feet for extended periods of time). Also slow speed rock crawling.

The Jeep is a 2014 JKU Sport that has Currie RJ axles with 5.13 gears and 37” tires. I have also recently installed a Rubicon transfer case. I used the AEV ProCal to adjust for tire size, gearing and transfer case gearing. Anyone have any thoughts? Wondering if the AEV ProCal has messed something up with the stock computer or if I should send it in to the shop to check the transmission out.

Thank you

 

subscribed