Help, NAG1 Transmission Lead Frame Assembly code P2784 -
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post #1 of 3 Old 08-27-2013, 05:48 PM Thread Starter
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2005 WK 
Join Date: Apr 2007
Location: Hillsboro, Oregon, USA
Posts: 311
Help, NAG1 Transmission Lead Frame Assembly code P2784

Hello Guys,

05 WK Grand Cherokee
Miles: 99789
3.7L V6 4x4 with NAG1 Transmission.

A few weeks ago my transmission made a loud pop and went into limp mode, stuck in 2nd or 3rd gear. If I stop and turn the jeep off and On, it drives normal for a few miles then does all again. Long story short, I thought It might be time for a fluid change. The dealer replaced the fluid and ran a TCM scan and pulled the following codes :

P0710 - Transmission Fluid Temperature Sensor Circuit
P0714 - Transmission Fluid Temperature Sensor Circuit Intermittent
P2769 - P2769 Torque Convertor Clutch Circuit Low
U11CB - ???? have no idea :'(

I was told I need to replace the Conductor plate which contains the Speed I/O sensor and the 6 other solenoids. However, the Mechanic said that he will transfer the old solenoids to the new plate which already comes with a built in speed sensor.... all for $800.00.

I Found an OEM Plate on Ebay for $190, I will be trying to do it my self, the only thing is, can I reuse the same fluid and filter since it was all replaced a couple of weeks ago? Anybody else done this before...Replacing Conductor plate? I know I will need to pull the whole Body Valve out :'(

Thank you

bull_blaster is offline  
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post #2 of 3 Old 08-28-2013, 05:20 AM
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2008 WK 
Join Date: Jan 2013
Location: Greenville
Posts: 2,686
So long as you use a clean drain pan and don't contaminate it with anything, the current fluid should be just fine. Filter is fine as well.

08 Limited Hemi - wheels, tires, springs...ya know, stuff
caulk04 is offline  
post #3 of 3 Old 09-03-2014, 07:33 PM
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2009 WK 
Join Date: Feb 2014
Location: Kitchener
Posts: 49

Did changing the conductor plate end up solving your issues? I am having a very similar issue with my 09 3.7 WK and its making me go nuts. I have been troubleshooting all possibilities and this Conductor Plate seems to be the only last option. What ATF fluid did you recall topping it up with? How long of a job was this for your to do?
ksteve is offline  

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