OBD
P0565
Cruise Control On Signal
What it means
P0565 means Cruise Control On Signal.
Check these first
- A failed cruise control On switch
- An open or short in the On signal wire
- A bad brake pedal switch
- A faulty clock spring
- A PCM input fault
What to do next
- Watch the On switch input on a scan tool and press it
- Test the On signal wire for opens or shorts
- Check the brake pedal switch
- Inspect the clock spring
- Replace the cruise switch if the input never changes
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.