This happens when the actuator motor stops partway through a cycle.  The
actuator rod can only slide in and out manually at the ends of the cycle.

How you get to it to disconnect the linkage with the door locked is a
mystery to me as it's the actuator that's "jammed" and not the lock
cylinder.  But with luck it will come to life with the new battery.

Yrs,
d

On Mon, Dec 17, 2018 at 2:45 AM Mark Belanger <mbelanger@gmail.com> wrote:

> Greetings,
>
> I have a '91 with electric door locks. Unfortunately, it's been sitting a
> lot lately and I don't have a trickle charger on it (yet), so the battery
> got low. I was able to unlock the driver's side door and I heard the slider
> unlock as well, but when I tried to turn over the engine, it gave one crank
> and croaked.
>
> Hook the battery up to a charger overnight, which gave it some juice, but
> not enough to crank (I suspect the battery is toast now). The big change is
> that the driver's door lock would not unlock. The key would not physically
> turn counterclockwise, nor can I pull it up from within the car.
>
> I'm hoping one of you will tell me this happens when a battery runs low,
> but I expect I'm going to need a new door lock (to go along with the new
> battery I'm about to buy).
>
> Any thoughts?
>
>
> Thanks mucho,
> -MB
> --
> ________________________________________________________________________
> Mark Belanger - mbelanger@gmail.com
>