Set Speed Does Not Cancel When the Brake Pedal Is Pressed

Set speed does not cancel when the brake pedal is pressed

Do the brake pedal position switch test Adjustments.

Do the cruise control input test Component Tests and General Diagnostics.
Test the brake pedal position switch signal input.

Check for PGM-FI DTCs How to Troubleshoot the Fuel and Emissions Systems.

Also check for

Short to power on the ORN wire

Also check for

Faulty brake pedal position switch