OEM cruise control doesn't work. on 2003 Mazda B2300

The brake lights work and the clutch switch works. I can hear the steering wheel mounted buttons clicking but the speed control still doesn't work. Any suggestions??

Asked by for the 2003 Mazda B2300
Some of the most common causes are: Cruise Control Servo, Brake Pressure Switch or - Speed Control Switch Wiring. There has also been a few recalls that may apply, if Recalls not already done or the cause please call Roy at 757-456-0722 to reserve a FREE loaner car/van while we diagnose and repair yours.