what switch and where?

I have a '94 Jeep Cherokee SE ... when I turn on the the ignition many accessories DO NOT work ... the fan motor, the radio, wipers. But the engine cranks and runs fine. When I switch the ignition all the way back to "accessory" ... everything works again! which switch is mal-functioning(exact name so I can go buy one) and where is it located, inside the column? I guess I wouldnt be lucky enough for it to be something under the dash.

I believe your jeep still has the ignition switch under the dash on the steering colum. It is activated by a rod from the key cylinder. The switch it self is only about $20, you have to lower the colum to get to it.

I had to change mine out and I removed the driver's seat to allow for better access.