The trun signal switch unit needs replacing. Take off plastic cover on steering wheel column; remove bad switch with 3 or 4 screws then reverse.
It's on the steering column
on some cars the cruise control cuts out on its own in Case you have fallen a sleep
There should be a fuse box under the steering column with a diagram printed on the cover.
There are multiple things that can go wrong with the cruise control, you need to be more specific as to the problem your car is having. While traveling at highway speeds, the cruise control suddenly deactivated itself and would not come back on.
Blown fuse would be where to look first.
I think they call that the "control module" or equvilent. Usually, if you ask for a wiper, turn signal or cruise module, you'll get the one that controls all three.
On my 1994 Thunderbird, it's inside the left fender. I had to remove the splash shield to get to it. The 1991 is probably the same since all Thunderbirds from 1989 to 1997 used the same body platform.
Cruise control is an accessory.
It is possible to convert a car without cruise control to have cruise control. Many auto parts stores sell kits which will install cruise control in a vehicle.
There are several ways to fix the cruise control on your Mercedes-Benz depending on the problem with the cruise control. Make sure the fuse for the cruise control is not blown.
2004 sebring convertable cruise control not working - what to do?
There is no isolated fuse for the cruise control. It all runs off the 20A gauges fuse. If you are having trouble with the cruise control I would check the Cruise Control Module or the Cruise control Servo. What symptom is occurring?