Set Speed Doesn't Resume, Resume/Accel Button Pressed (Cruise Main Switch On, Set Speed Canceled Pressing Clutch 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 clutch 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