In your config I see your X and Y homing direction are set to 1, change this to -1 so that X and Y are both at 0 (centered) when the machine is homed.
Move the carriages away from your endstops and run M119. If you see your X/Y/Z Max events then depress one switch and run M119 while depressing the switch. What are the results from this? If you don't see X/Y/Z/Max post your entire pins.h file.
I'm still getting used to this forum so I just saw this, when you post files it may be help to use the "Attach a file" feature of the post. This would help troubleshooting in that we don't have a wall of text to scroll through and is easier to just download the file for viewing.
Move the carriages away from your endstops and run M119. If you see your X/Y/Z Max events then depress one switch and run M119 while depressing the switch. What are the results from this? If you don't see X/Y/Z/Max post your entire pins.h file.
I'm still getting used to this forum so I just saw this, when you post files it may be help to use the "Attach a file" feature of the post. This would help troubleshooting in that we don't have a wall of text to scroll through and is easier to just download the file for viewing.