+++RED MESSAGE++ "drive to work shop without shifting gear"

hello, i want to remove the intake manifold for my 2007 gl450 at the middle of the work with the ecu disconnected i pretend to hear music and  i move the key clockwise two time and appears a noise and a red message that says'' drive to work shop without shifting gear" the engine does not turn on and the shift doesnt work. does anything i can do?