I think your control module took a dump if the level sensors are good, its between the trunk and rear cargo area on the rear air only models, luckily for you i think when you have rear air suspension only, the control module is like 100 bucks plus you have to calibrate the system.

if your control module takes a dump on us 4 corner air people, its more like 700.

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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