Loaded XPlane 10 on new iMac and rudder pedals no longer function?

The "Error Rudder" message on the C600AD display could indicate an issue with the linear feedback unit (LFU) or the rudder angle sensor. The LFU measures the position of the rudder and sends that information to the autopilot control unit.
You may want to check the wiring and connections between the LFU and the autopilot control unit to ensure that there are no loose or damaged connections. If the wiring is intact, the LFU may need to be replaced or recalibrated.
You may also want to check the rudder angle sensor to ensure that it is functioning properly. If the rudder angle sensor is not providing accurate information to the LFU, it could cause the "Error Rudder" message.
It may be helpful to consult with a marine electronics technician or the manufacturer of the C600AD autopilot system for further troubleshooting and repair recommendations.

Verify that it is configured for your installation. Some units can be installed either on the port or starboard side, and they have to be programmed accordingly. Verify this in the user's manual.

seems to be a problem with the rudder feedback sensor first check if rudder sensor is not mechanically disconnected,if not try to do de setup procedure,reset the unit to factory condition,try to set rudder limits,if this is not working ,check with other feedback unit.

Check if rudder reference unit is installed as before ,it seems that the pilot sense that the rudder is turning the wrong way. check when giving +10 command the
rudder turns to increase the heading,if yes, it could be the wiring of the rudder reference unit or it was installed the wrong way after service on the rudder.
Is rudder position indicating correctly?

What model autopilot? If it is a Raytheon/Raymarine try switching the motor leads to see if that works.

CHECK RUDDER REFERENCE UNIT FOR CONTINUITY(IT IS A POTMETER) CHECK IF MOTOR IS RUNNING IN THE CORRECT DIRECTION ,CHECK CONNECTION OF RUDDER REF UNIT.

Ya you can disable it just go to menu of home page>Controls>assign A command> and disable

Hi,

Have you tried adjusting the sensitivities of each axis using the Control Manager?

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

ensure you are setting correct rudder value.

Your in luck I happen to be a Flight simmer also. You need to go into your main menu under settings in Flight sim 2002. You will see enable joystick then you will see cordinated flight or uncordinated flight. You want to select uncordinated flight. Meaning that you will have full control of rudder and the sim will no longer make coordinated turns for you. You will have to add rudder to prevent a skid.