Originally Posted by Afmcronnie
That's what its spose to do. The unswitched one is in the console.
It's not supposed to turn off until you turn the ignition off.
Sounds like it's some kind of safety mechanism when the current draw exceeds a certain amount (if it's not a wiring issue). Does it turn back on immediately, or is there a delay? Try running the laptop on low power and see if it still does it.