P1568 Speed Control Unable to Hold Speed
What does P1568 mean on a Ford?
P1568 — Speed Control Unable to Hold Speed. This Ford-enhanced code applies to F-150, Explorer, Expedition, Taurus with cruise control.
Common causes of P1568
- Engine performance fault robbing the power to hold speed
- Slipping transmission under cruise load
- Faulty speed control servo or actuator
- Vacuum leak on vacuum-operated cruise servos
- Brake switch flicker cancelling cruise effort
How to fix P1568
- Fix any engine performance or misfire codes first
- Test cruise on flat ground versus grades to isolate power loss
- Check transmission for slip under load
- Inspect servo vacuum supply and linkage
- Test the brake switch for intermittent cancel signals