Troubleshooting '05 Odyssey driver sliding door
 

I have an '05 Odyssey which is having trouble with the driver sliding door. It stopped working (wouldn't even open manually) and I have done the following in an effort to fix it:

1. I replaced the bracket that is used by the sliding door motor to pull the door back and forth. I also replaced the rail it goes in at the same time. (The previous bracket had broken rollers).
2. I replaced the sliding door motor & cables.
3. I replaced the controller that's in the back (normally behind the spare tire).

With that, the door now works in manual mode and *sometimes* with the sliding doors turned on. However, after a few times it just stops and it seems like the switch is not connected. In that state not even the door latch will activate it. No sounds, no movement, no beeps, nothing. Later on it seems to start operating again, but it's random and sporadic.

Is there anything else I can try to get this going again?