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Does the starter spin the engine over?
If not does the starter just click?
Or, when you turn the key nothing happens?
Has the Jeep been scanned for codes?
If so, what are they?
From everything that I have found, and looking over the diag for the U1411 code, and what you are saying the vehicle does.
It sounds like you need to replace the FCM. Front Control Module.
What computer did you change?
Where did you get it?
Can I get the part number off of it?
Was it new?
That does not pull up as a correct number for me.
Can I get your VIN?
Yes, even with your VIN, I get the(###) ###-####G for the FCM
Ok, I understand that.
I am coming up with a different part number using you VIN on Chryslers website. Is what I am telling you.
And I dont believe the FCM is in that location. That is the location of the PCM
The FCM screws to the fuse box with 4 phillips head screws
I can understand your frustration, Honestly, I tell all my customers to get electrical parts from the dealer.