When you take your truck in for the Cruise Cntrl Service and they don’t have the parts they just disconnect it; usually tell you though.
Look under the hood around the brake master cylinder and see if there are any disconnected wires. if so, then contact the Stealership for more details don’t reconnect the wires.
If the Cruise works sometimes and not others check out the Switches on the Steering Column, they wear out and may need replacing.
Local JYs usually have plenty of these Pods; watch the Air Bags if the vehicle has them, make sure there is no battery in the vehicle and if there is disconnect it and wait a short while before taking the air bag out.
4x4, 5sp, Std Cab, Stepside, E4 Red
4” Lift - Coil-Overs, 6” SkyJacker Leafs - No Blocks (Mistake)
31 Spline FX4 Rear Axle, 4.56s and OX Locker, Hurst Shifter w/Optional Stick and "Made by Grev" alignment adapter