Set Speed Does Not Cancel (Engine RPM Stays High) When The Clutch Pedal Is Pressed (M/T Model)

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

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

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

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

Also check for

Short to ground in the BRN wire

Also check for

Faulty clutch pedal position switch