P056C
Cruise Control Cancel Signal
Generic OBD-II
Common symptoms
What you'll notice
- Check and replace the faulty cruise control cancel switch.
- Inspect and repair any damaged wiring or connections related to the cruise control system.
- Inspect and repair any issues with the brake pedal position sensor.
- Check and replace the cruise control module, if necessary.
Common causes
Most likely first
- Faulty cruise control switch
- Loose or damaged cruise control wiring
- Faulty cruise control module
- Malfunctioning brake switch
- Incorrect or incompatible programming
How to diagnose & fix
Work through it in order
- Cruise control fails to engage or maintain speed
- Engine stalling or surging while using cruise control
- Inability to change or accelerate/decelerate cruise control settings
- Illumination of the check engine light
- Loss of power or reduced engine performance while cruise control is in use
Read & clear P056C yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.