Full electric power to the lights goes through that light switch and if
they come on only when holding the dimmer switch  lever back then it's the
switch. That is a lot of power running through that switch and they get hot
and over time will fail. I highly recommend you install a headlight relay
kit when you replace that switch. The relays bypass loading the switch and
you will have cleaner power with lower circuit resistance to the lights
allowing the switch to be cooler and your lights to be brighter. I have
done this on every van I.ve had. I learned on the first one. I used a kit
from Jay Brown - to be found on the SAMBA - had him supply the kit with
longer leads so I could mount the relays on the dash to the extreme left of
the instrument pod, but under the pod cover. It proved to be a royal PITA
trying to mount those relays down on the fuse panel as originally specified.

On Tue, Jun 20, 2023 at 9:45 PM Jim Arnott <jrasite@eoni.com> wrote:

> No. It’s powered off the key buzzer. Betcha.
>
> > On Jun 20, 2023, at 4:34 AM, Gabriel Hourtouat <ghourtouat@GMAIL.COM>
> wrote:
> >
> > Driving.  Stop, turn key and remove.
> > My radio stays on until I open my door.
> > Did my ignition switch organically grow a new feature?
>