On a 2001 Lexus GS430 could a failing ignition switch cause the battery to drain?

Question edited for clarity.
Question moved to model category.

Fuse 3 in the engine compartment.

https://www.autogenius.info/lexus-gs430-2001-2002-fuse-box-diagram/

..

using only electronic key or the metal key.(feature)
got park assist option?
a no key slot ignition, fails we scant the PCM for cause.

the steering is first. so wheels against curb or hard rock>?
front tires are free of objects?
to unluck it , try both key car came with new
and grab the wheel and move it CCW/CW roughly to free the key.
shifter is in park I guess. try Neutral? step brake
release hand brake, and shift to N
then unlock wheel. this answer is flat ground answer only

the steps are here
Check that the parking brake is set.
Check that the shift lever is set in P.
Sit in the driver's seat and firmly depress the brake pedal.
The "ENGINE START STOP" switch indicator turns green.
Pressthe"ENGINESTART
STOP" switch
if steering lock fails the books states

The "ENGINE START STOP" switch indica-
tor will flash in green and a message will be
shown on the multi-information display. Press
the "ENGINE START STOP" switch again
while turning the steering wheel left and right!!
read page 137

https://assets.sia.toyota.com/publications/en/om-s/OM53839U/pdf/OM53839U.pdf

door is not turning off the inside light perhaps

Why do you think the ignition switch is the problem?? I would not think that would cause this, have never once seen a ignition starter switch cause this symptom in 35 years.

what problem?

Do the headlights come on? This is independent of the key. If not, you have a supply problem (fusible link, open circuit battery, etc...). Measure the voltage on the battery if you can (should be 11.5-12.5 volts DC). If lower, replace or charge the battery. If the headlights come on, then you have an ignition issue (security system, most vehicles have a transponder in the key to stop "hot-wiring" a car, or still could be a fusible link (a wire from the battery to the starter designed to fail if too much current is drawn), ignition switch, park/neutral switch (car must be in park or neutral to start)). Although if the park/neutral switch, usually all other ignition based items work fine, it just won't start.

the VSC is reading only when is dissabled

A mechanic would check for voltage at the battery, the starter, the neutral safety switch, and the key switch.

no the light wont drain your bat you battery problem is probebly coming from a short some where in the system have you charging system checked

do you have remote start???check that or bad ignition switch