Seems the instrumentation panel illumination on my old 1993 LS400 is failing - sometimes (not all times), when the car is cool, the illumination would not be on until after driving 10 minutes or so, then it starts to flash a few times and then it turns on.
What's causing this and what should I do ? Would I need to change the whole instrumentation panel or maybe just some lights/switches ?
Thanks for any diagnostics /suggestions.
Joe