I have never seen a black switch. Mine is a silver button that is depressed when the bathroom wall is erected. To the best of my knowledge, it turns off 12-volt power to the rear shell, so I am surprised that it would affect the oven and kitchen sink lights. You can find a wiring diagram in the TM manual in your blue binder, or in the TM Technical Library.
The switch is a safety device. As you ride down the road, the rear shell wiggles a little bit against the bed, and this motion can turn ON the switch in the light over the bed. I've experienced this. Since that light is pressed against the bedding, heat could build up and start a fire. I wouldn't disable this switch.
In addition to the over-bed light, the switch turns off the bathroom ceiling light and the gas detectors near the floor. You can hear them squeak when the power goes off.
Bill
|