Yes! They are the same parts..... Just make sure your XJ part is from a 90 not a 91. Jeep changed the 91 and up fitment on the lower column shaft...
It doesn't control anything. It is the connection for the cruise switches, horn switch, radio controls(if equipped) and airbag that allow the steering wheel to turn and there to still be a connection.
It's on the steering column
i believe you can disassemble the lower part of the steering column to access the area.
because its a mopar. j/k most likely because main operating systems ie brakes, steering column, cruise control wiring, gauge cluster, so on is on the other side.
The Chevy Cobalt should already come with cruise control. It is usually controlled by a tab attached to the side of the steering column.
The combination, or multi function switch is the switch you use to turn on the blinkers, the windshield wipers, and cruise control. Oh and it's on the steering column, left side.
The fuse for the cruise control for a Nissan Quest is in the fuse panel in the passenger compartment. It is located inside to the left of the steering column.
The clock spring would be inside the plastic steering column cover ( it allows you to turn the steering wheel without " breaking " the wiring connection to your horn and steering wheel mounted cruise control buttons )
There should be a fuse box under the steering column with a diagram printed on the cover.
on the 89 the arm has one wire for the cruise, this connects under the dash and must be disconnected and fished out of the steering column, as for the arm itself, it should just pull out of the column
Behind the left of the steering column under the instrument panel.
I'm not a mechanic / technician but it sounds like a problem with the clockspring inside the steering wheel column cover if the horn and the cruise control does not work ( the clockspring allows you to turn the steering wheel without pulling the wiring connections to your horn and cruise control switches mounted in your steering wheel )