My daughters 2000 olds intrigue has a blown 40a fuse under the hood in the crank slot of the panel and the headlights keep turning on all by themselves. The car won't start and the battery is charged. Can I suspect more blown fuses or try replacing the fuse and see if there is a short?

John, Open passenger door wide, fuse box, passenger side end of dash, under removable trim cover.
The fuse marked Cigar Ltr./Aux.Pwr. 20 amp. is the fuse you want to look at. Check the attached links,instruction and guides, Good luck
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http://www.autofuseboxdiagram.com/10639-2000-oldsmobile-intrigue-fuse-box-diagram
2000 olds intrigue cigar lighter fuse Google Search
Where is the fuse for your cigarette lighter located at for your 98...
Where is the fuse for your cigarette lighter located at for your 99...

I know this...if it's blown your Z55 Autoride compressor won't turn on (if equipped).

Disconnect the cigar lighter and see if the short goes away, I will bet it does.

check your fuses (all of them if you have to) for any that are blown. there is a slight chance that one quit and she didn't notice it and the other finally died. also under the hood near the battery you should be able to locate another fuse panel. take off the lid and try to locate the relay for the headlights it may have failed.

The twenty amp maxi fuse in the under the hood fuse panel goes to, you guessed it, the fuel pump. It sounds to me like you have a short to ground in the wiring that keeps popping this fuse. Find and fix the short, or you will keep blowing fuses.

Free wiring diagrams here http://www.bbbind.com/free_tsb.html
Enter vehicle info. Year , make , model and engine size . Under system click on engine then under subsystem click on starting . Click the search button then the blue link.

either your fuse is blown for the automatic headlamps or the relay is bad (consult your manual)

youll have to probe that elec.circuit to find what is causing your short

Check the fuse box under the hood on drivers side, it will be number 17 and a 10 amp. this vehicle has automatic headlight adustment when you crank the car. If the fuse is blown the lights will point down to keep from blinding oncoming traffic.
Hubert

mine was doing that for a while look under the hood in the fuse box and check thoes fuses there is probably one under there blown in my neon it was a 15. aand it controlled the inner dome light and radio...hope i helped you.