I have a 2004 LS430. The center console lights sometimes go out. All the functions seem to work, but the buttons are hard to see at night when the lights go out. The lights include the map, radio and climate buttons. There must be a flaky wire. Does anyone have the electrical wiring diagram that would include the offending wire? Thank you.

John

 

I had the same problem with my 04 and sometimes smacking (lightly) would cause the light to come and then eventually, this didn't work anymore. Just replace the light in the counsel. We are talking about the light indicating which gear your in, right?
It was super easy to replace and can be in 5 mins or less. I LED'd mine, more bright and cool. Its a #74

 

The wiring responsible for illumination are powered through terminals 1 and 2 of a connector called "M4".

 

 

You're welcome. Attached are some pages from the factory repair manual can may be helpful to you.

 

 

 

 

same here with same issue, at night some time the car think is day time, car turned the screen to BRIGHT "day mode"

 

 

yes! all center console buttons went dark, i had to hit few bumps then get it back to normal.
just need to research where are the sensors

 

 

i think there's one on center of the dash, there should be another one.

 

This is my nighttime center dash. No buttons are lit. I still think it is the day/night sensor.