The other night when went out to get some stuff from the rear of my 62, I manually switched on the rear dome light (it doesn't work automatically when the liftgate is opened) and the instrument panel lit up and the heater motor started blowing. No key in the ignition. When I turned the light off and shut the liftgate everything turned off. ????? The Toyota dealership replaced the ignition switch a few months back- could this be the problem? This is probably the first time I have turned this light on since then. Thanks.