Help with CAT 259D LH Joystick error

Hi, I have searched for hours to find some incite on this issue.

I have a 2014 CAT 259D that intermittently, while in use abruptly stops and applies the park brake. The error code that show on the display are as follows: (these are from the history so they may not all apply to one event)
2474-3 Left Joystick Forward/reverse position sensor voltage above normal
2474-8 Left Joystick Forward/reverse position sensor abnormal frequency pulse with or period
2476-3 Left Joystick Forward/reverse...

Help with CAT 259D LH Joystick error

Help with CAT 259D LH Joystick error