Cruise Control Malfunction '08 Corolla?

[jkg065]

Cruise control is a TN DIY with part acquisition from RockAuto and until this morning no issues. Traveling at 60 mph CC would not engage after numerous attempts, CC light on, nice & bright, OD engaged. Owners manual pointed out possible responses by the CC indicator light that could necessitate a trip to the dealership. The 10A fuse at position #33 of the driverside underdash fusebox is for ac, heater blower, CRUISE CONTROL SYSTEM, gauges & meters and other systems. Except for the CC, other listed items were all functioning. Taking the car out on the highway with OD ON, I again tried engaging the CC, no response, clicking the OD button OFF/ON then engaging the CC solved the problem. CC operating normally with OD OFF or ON, unable to duplicate original problem.