Rear door The rear door handle of my 2001 toyota sienna is broke.How can I open that door?

put some lubricant inside

Remove the internal handle and I think 1 or 2 screws and lift inside door panel off, pull the latch and it will open!!

This happened to me with the Sienna,
I had to remove the panel on the inside of the rear door and found the other side of the handle.
If you need to fix it?
http://www.findonefindall.com/toyota-sienna/siennareardoor.htm

To start, the noun "''rear latch switch'' is incorrect. It's actually called "Slide Door Lock". It's located on page BO-20 of the Toyota Repair Manual for the 2001 Sienna. There are two door locks on one sliding door. One in the front and one in the rear. Obviously, you want the one in the rear. The location for the "Slide Door Lock" (which also contains an electric switch) is in the rear of the sliding door located mid way up door. You can see (sliding door opened from the back) it without dissembling the door. And, the lock is made up of plastic (dirty white in color).

The door handle might be broken, you need a new part. I got mine online for $40. keywords: 2001 2002 2003 2004 2005 2006 2007 Toyota Sequoia Metal Lift Gate Exterior Door Handle for Rear Outside Van Tailgate Handle. You need to remove the back door panel to replace this.

If you can remove the inner door panel you will see a maze of cables running to the various locking points on the sliding door. If the cable going to the FRONT latch on the sliding door is broken (or in my case, simply dislodged inside the door) the door acts as if it is frozen shut.

The front cable is short, and easily replaced even by a newbie mechanic.

We made a page with pictures and descriptions of this exact job.

Hope it helps.

http://www.findonefindall.com/toyota-sienna/siennadoorhandle.htm

All the Best
David

I had the same problem, and here is the solution:
http://www.findonefindall.com/toyota-sienna/siennareardoor.htm

It includes step-by-step instructions and photos. I printed it and headed to the garage. I while later (hours actually) it was fixed. I did end up going to the hardware store and buying the EXACT size screw they recommend. I went with a screw rather than a nut and bolt. Worked fine.

sounds like you are the victim of the slim jim. what happened is the clip for linkage either broke or got knocked off. you have to remove door panel and repair/replace clip

Older Sienna door handles have been known to age prematurely, many plastic ones cracked and broke a few years down the line. For the back hatch. a cable is attached to a plastic piece and hooked through the latch handle. That cable might have come off of the plastic piece or the piece had simply broken in two. If you are lucky, you might be able to superglue the plastic piece back such that the cable would pull and open a few times before breaking down again - it is a quick and dirty fix. Get it repaired properly so you do not end up using the sliding door to access the middle row as storage compartment....