Then it stops working at all.
Sliding door latch will not close.
If not do the lipstick test smear lipstick on the latch and stick masking tape to the strike plate.
As you close the door the lipstick will stain the part of the masking tape it touches leaving a record of the exact point where the latch contacts the plate.
Sometimes you can clearly see the misalignment.
Turning this screw raises or lowers the roller.
If the door becomes even harder to open turn the screw in the opposite direction.
When your sienna side door won t close one possibility is a circuit overload.
This happens when the power sliding door isn t able to latch on properly due to something blocking it.
Most sliding doors have a mechanism called an adjusting screw located at the bottom of the door ends.
Move the strike up or down as necessary to align it with the door.
Give the screw a clockwise turn and test to see whether the door slides easier.
Dodge chrysler caravan town and country sliding door will not open or close get this checked and done first.
In this situation the best thing to do is to replace the cable.