Rear bottom door wont open

[Diablo_deth]

Hi, New Astro owner here
I just purchase a 2000 ASTRO Van.
Need lot of work
I was able to replace most of the internal bulbs still need to find a good LED for the map lights
Need to go to the Auto shop 3 times before I was able to get both the front and rear wipers replace
I just replace both the Lifting Stuarts for the upper Dutch door and now it will stay up but now the bottom Right Rear door will not open when I pull the handle.
Is there button to lock it, I try open and closing the power lock for the front doors and nothing is happening.
When I pull on the handle, nothing happen
I look thru U-tube and the forums, they mainly talk about the upper Dutch door and not the 2 doors on the bottom.

[Rod's Trucks]

I suspect the linkage has come apart inside the door.
You probably need to pull the door panel off and look at that linkage. It is all mechanical.
For a cheap education, head to the Pick'n' Pull in Lynnwood or Arlington, and look for one you can take apart, to see how it works. There may be one with the back door panel already removed.
Rod J