On 14/02/2020 18:55, NY wrote:
"Tim+" wrote in message
...
On Thu, 13 Feb 2020 10:51:02 +0000 (GMT), Dave Plowman (News) wrote:

Wipers have long had an unswitched power feed to allow parking
after
you ve turned the ignition off.

Really? Again, which makes? I've not had that on any car. But my
cars
are never new. ;-)

Not known the wipers to be on a totaly unswitched feed. "Accessory"
position of a traditional ignition key on the other hand. As in
"Off", "Accessory", "Run" and "Start".

Yes. In my experience, self-parking wipers are only any use if you pause
in the Accessory position after turning off the engine, until the wipers
have parked. And how many of us do that? Many times I've had the wipers
park themselves only when I next come to the car and turn the ignition on.

Now I always turn my wipers off at the stalk before turning off the
ignition key, because that is less fiddly than trying to hit Accessory
as opposed to Off to trigger the wipers to park themselves without
removing all power so they stay put half-way across the screen.

These days many cars have the wipers, heated rear screen, central
locking, etc., all controlled by the same module. It has to remain
powered for the central locking and remote keyfob, so it is easy for it
to park the wipers, whether the ignition is on or off.

SteveW