Set Speed Does Not Cancel (Engine RPM Stays High) When the Clutch Pedal Is Pressed

Set speed does not cancel (engine rpm stays high) when the clutch pedal is pressed (M/T model)

Do the clutch pedal position switch test Clutch Pedal Position Switch Test.

Do the cruise control input test Cruise Control (ECM/PCM) Input Test (M/T).
Test the clutch pedal position switch signal input.

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

Also check for

Short to ground in the BRN wire

Also check for

Faulty clutch pedal position switch