If the lock is free from obstructions it could be the actuator.
Toyota sienna sliding door latch problems.
Order a new motor from a toyota authorized dealer like ours.
The sliding door latch is not working see the picture of the latch unit.
When your sienna side door won t close one possibility is a circuit overload.
Toyota is recalling 744 437 sienna minivans in the united states for sliding doors that may not latch properly and possibly could open while driving according to filings with the national highway.
Toyota sienna vehicles with this problem.
The door is supposed to unlatch first before it triggers the motor to pull it open.
Remove the door panel and look over the locking mechanism.
The electric motor s circuit will become overloaded and this will trip the fuse and prevent the door from being closed entirely.
Most common problem is the motor of the latch fails.
This happens when the power sliding door isn t able to latch on properly due to something blocking it.
After you have the replacement part it is simply a swap and reassemble process.
This is a common problem on your vehicle and other years also you can try spraying a lubricate on the latch to see if it will free up also problems with the cables on the doors up to a couple grand or more to have repaired per door.