No start; lights & acces get power but engine will not crank

Your car has several different ignition positions. They each offer slightly different functionality.
Off: In this position, the engine is off, and so are your electronic accessories (unless the delay has not expired yet). You can still turn on lights (headlights, interior lights, etc.).
ACC: This is the accessory position. Turn the key to ACC if you want to listen to the radio, play a CD or use other accessories without cranking the engine.
On: In this position, all of the electronics should come on. This is also the position that the key will return to after cranking the engine.
Start: Turn the key to this position to crank the engine. Let go of the key when the engine is running and the key will return to the on position.

http://www.aa1car.com/library/ignition_switch_positions.jpg

I use to own a car that had an ignition that was ACC - OFF - ON - START.

Try turning your ignition one position clockwise and see if the radio turns off and the key comes out.

https://hackadaycom.files.wordpress.com/2008/08/ignition.jpg?w=450&h=338

Check you have enabled gear shift.

Clean and tighten battery cable connections and check battery ground, engine ground-should be a ground strap from engine to the body or frame. If this happens and you have nothing, no headlights, nothing-it's almost certainly a problem at or right off the battery.

sound like problem in the theft security system your ignition key or ignition switch worn out.

If it won't crank in neutral, you'll have to get someone to scan the computer for trouble codes, and check the starter cable for power.

What year is the vehicle ?

when the lights go out when the key is in the run position , that indicates loose battery terminals, battery posts and terminals are black and not shiny clean and bad ground wire or just a bad battery
have it load tested

The blower fan is powered by a 30 amp circuit breaker.Its in the box at the pass kick panel. Is it getting power through it? The blower relay is powered through the GAUGE fuse 7.5 amp. Check ALL the fuses. There is a 30 amp fuse that powers the ign switch also. If you get the blower working I think everything else will work.

Accessory position is turning key towards he driver. Ignition on is away 1 and start is away2.

• Turn on your headlights, do they work? If not, chk batt terminals
• If they do, try to crank the engine noting what the headlights do. If they go out, Chk the batt ground cable. If they dim, your batt needs a charge. If they dim and then come back bright when you back off the starter, the starter is bad.
• Chk for loose engine to body ground. That would affect the accessories. Good Luck, _Ned_

haveyou checked you fuesable link wich is on the fire wall in the engine compartment it will be a red wire comming off of a sidwase dimond shaped block