To find the potential problem, you'll need to consult your owner's manual's fuse diagram. The manual will show you the location of the fuse box(es) (likely under the hood and possibly inside the vehicle) and which fuses relate to power distribution for systems that might affect the cruise control, such as the powertrain or body control modules. It won't list a "Cruise Control" fuse specifically, but looking at related circuits is necessary.
You'll need to check several things, not just the fuses. A malfunctioning cruise control could also stem from:
* The cruise control switch itself: This is a common failure point.
* A faulty brake switch: The cruise control will disengage if the brakes are applied. A problem with the brake switch can prevent the cruise control from working correctly.
* A problem with the speedometer sensor: The cruise control relies on the speedometer to maintain speed.
* The cruise control module itself: This is the brain of the system.
In short, there's no single answer to your question. Start with your owner's manual's fuse diagram, and if fuses are all okay, consider the other potential causes listed above.
