Before you drop $700 on the new module (and you have to code it as well to your X), do not just guess at a diagnosis.

I would get a DIS/GT1 and perform a full scan of the module to see what faults are on there. Read them and post up here, we can help then. And yes, you are correct sometimes you need to perform a ride height calibration as well because you could be throwing a soft error for ride height deviation

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards