The sliding part of the mechanism is probably stuck in the middle; it's
supposed to be at one end or the other.  If repeated cycling of the system
doesn't help, you'll have to pull off the inside panel and move it by hand.
  BTDT
  Then if you wish you can disconnect the actuator from the system until
you get a chance to pull it all out, study it and tune it up.

Have fun,
Larry A.

On Mon, Aug 10, 2015 at 11:53 PM, Art Jury <kf7gd7@gmail.com> wrote:

> Hi at boy scout camp this week.   Back hatch does not open.   I have not
> locked it.   Button depresses key turns 270 degrees no effect.
>
> 1990 vanagon carat.
>
> Not urgent I'll take the door card off and probe around tomorrow when it is
> light suggestions welcome.   Thanks.  Art
>