No Cruise Control When Set/Coast Button Is Pressed & Released
WARNING: This page is about a different car, the 1995 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
Check for blown fuse, no vacuum at servo and/or defective servo, disconnected speed control throttle cable, brake switch out of adjustment, faulty electrical circuit, defective vacuum reservoir or defective vehicle distance (speed) sensor.