Set Speed Doesn't Resume, Resume/Accel Button Pressed (Cruise Main Switch On, Set Speed Canceled Pressing Brake Pedal)

Set speed does not resume when the resume/accel button is pressed (with the cruise control main switch turned on, and set speed temporarily canceled by pressing the brake pedal)

Check for PGM-FI DTCs Initial Inspection and Diagnostic Overview.

Do the cruise control combination switch test Service and Repair.

Do the cruise control input test Cruise Control (ECM/PCM) Input Test.

Test the cruise control resume/accel switch signal input.

Also check for

Open circuit, loose or disconnected terminal: ORN