To recap for those in rec.autos.tech who I forgot to include in my previous post:
Got in my '89 Cressida and noticed the power windows weren't working.
> All out at the same time.
>
> Checked various fuses, found none that looked burned out. Then I
> noticed another issue - the power door locks worked to lock, but not
> to unlock. The driver door and I assume the passenger door could be
> manually unlocked of course but didn't trigger the others to unlock as
> is normal operation.
>
> Then I noticed the clock was wrong, which only happens if the power if
> interrupted. So, I checked the battery terminals and found apparently
> I'd neglected to cinch one down and tighten it when last needing to
> disconnect. It was on but with a loose fit. Re-seating and tightening
> made all the above issues disappear.
>
> So what did I witness? If there was enough connection to run the car,
> why would some of the accessories behave oddly or be non-functional as > described?
The problem has persisted with the windows, even though the battery connection is now tight and no further issues with the door locks or clock as previously noted. I've observed that turning off the car and restarting will bring the windows to life again.
What could be causing this? Wondering if the drivers door switch is a "master" for the others and could be getting hitchy and thereby affecting all the others, but why would a de-energize & re-energize make a difference? Or, is there something in-line between vehicle power and the doors that could be causing this intermittent behavior?
Thanks for all input.