The cruise control is a feature in the system that lets you set the speed while driving on the freeway. It is activated by the cruise control relay by transmitting power to the cruise control actuator.
Cruise control relay operationThe cruise control relay is important to the cruise control feature because without the relay it would stop working. The relay transmits power to the control actuator, and then if the relay is somehow damaged the cruise control can't be activated. It is important to maintain the relay damage free so that you can engage in cruise control mode with ease.
Common issues with a faulty cruise control relayA faulty cruise control relay can be caused by a damaged fuse or relay, or a broken cruise control switch.