The only way is to remove the inside door panel (not an easy job with the door closed). Once the panel is removed, you'll have access to the latch mechanism. You will be having to remove this panel to put a new door handle on anyway.
Not removable- replace entire hinge assembly
in my 88 astro van I had to completely break out the back handle to first get the door open then I was able to remove interior door cover to do thr replacement. in my 99 asto van I was able to remove the interior cover to open the door then replace the handle.
inside of alter
how do you get the door open
Check the junk yards
It is inside the fuel tank.
You have to take the inside handle apart to activate the latch manually. If you can't do it from the handle area you have to remove the inside door panel.
== == Pull on the inside door handle and it will release it so you can reset the mechanism with your fingers. This solution also worked on a Chevy Astro van 1990.
Mounted on top and inside the fuel tank.
Inside the alternator itself
Inside the gas tank
Inside transmission pan beside valve body.