P0594-Speed Control Servo Power Circuit
WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
When Monitored: Engine running, the speed control switched on and learned, and the brake pedal is not pressed. No other fault has occurred this trip.
Set Condition: The speed control power supply circuit is either open or shorted to ground. Cruise will be disabled for the remainder of that key-on cycle. One Trip Fault. Three good trips to clear the MIL.