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Set Speed Does Not Cancel When The Cruise Control Main Button Is Pressed

Set speed does not cancel when the cruise control main button is pressed

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 (PCM) Input Test.
Test the cruise control main switch signal input.

Also check for

Short to ground on the ORN wire