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Cruise Control Modules, Cruise Control Switches

The cruise control module is part of a system that enables a driver to use cruise control. The module coverts an AC signal into pulses of DC that can control the actuator. The module must retain memory of the speed set. It must also be aware of current speed. Lastly, it compares these two numbers and sends pulse signals to the actuator to increase or decrease speed through the throttle. A vacuum is modulated to keep speed at the set speed. Repair of the cruise control module can be difficult because it is hard to get to. It is usually accessed by removing the dash and sometimes the steering wheel. Specialized tools are sometimes needed to do this. Once the module is accessed, some knowledge of electrical systems is handy to have, as the module is an electrical device. A service manual is a must for this job.