Problem:
1. The high brake light on my SL500 will not work. I have changed out all six bulbs.
2. Cannot find a fuse for high brake light?? Or frankly any brake light. Does anyone know what Fuse controls this and in which box-trunk or in engine compartment.
3. Brake lights only come on when the key is turned and power is on or car started.

Questions:
1. Shouldn't the brake lights come on even if the key is not in the ignition if you step on the brake pedal? Does on my wife's Lexus.
2. Any idea as to where the fuse is for brake lights including the high Brake light on the trunk lid.
3. Thoughts as to why my High Brake light does not work.

Thanks for your help.