M/T

Set speed does not resume when the resume/accel button is pressed (with the cruise control main button pressed on, and set speed temporarily canceled by pressing the clutch pedal) (M/T model)

Do the cruise control combination switch test Testing and Inspection.

Do the cruise control input test Component Tests and General Diagnostics.
Test the cruise control resume/accel switch signal input.
Test the clutch pedal position switch B signal input.

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

Also check for

Open circuit, loose or disconnected terminals: BRN, BLU wire

Also check for

Faulty clutch pedal position switch B