supra is dead
 

i drove my supra all day today, it performed fine, ran smooth, started right up. then i was driving and my e-brake and battery light started flickering a little.
i pulled into a gas station and shut the car down, and now it wont start.
my headlights flip up, and turn on, but besides that, i have no power to anything. no windows, radio, ect. car will not turn over, the battery light comes on and thats it.

i tired to jump start it, but the same thing happened. please help:dunno:

my bet is on the alternator failing

if the alternator was bad, wouldnt it start when i jumped it still?

If you have NO power to any of the circuits but you have power to the headlights it isn't the alternator.... especially since the alternator only provides power while the engine is moving.

No, with a bad alternator you would only be able to jump it and run it until the battery was dead.

Check the 100A Alt Fusible link in the engine bay glove box. IIRC, the headlights are one of the only circuits which bypass it.

yup correct thats what i would think

Does the dome light come on? What's the voltage measured at the battery?

check the wire that runs from the positive battery terminal to the fuse box under the hood. If your battery isn't secured (or even if it is) this wire can become brittle and break.

This happened to me a year or so ago. It also explains random electrical systems working/not working.

i figured it out.. one of the previous owners did some custom wiring, and bypassed the fuse for the alternator with a wire. over the years it corroded and finally broke. i got a fuse, and it started right up.

thanks for all your advice. this was my first time on this site, and ill be back for sure:bigthumb:

That's the fusible link. They were originally a specific length of wire at a specific gauge and out of specific materials so it would burn up if more than a certain load was placed on it. As you've noticed they do corrode significantly over time; They were replaced with self contained fuse looking versions, they're generally not called a fuse though. Toyota started using them in the MKIII toward the end of the '88 or '89 model year.