My car wouldnt start so i jumped it and then it wouldnt hold a charge so i figured my alternator was bad so i had it checked and it was still good they said it was a fuse or relay but i can not locate which one so i need a wiring diagram for this issue

a bad battery would give a wrong judgement of an alternator output. take off your battery and replace with a working one, test your alternator output using a DMM it should read about 12.5 when engine off and 14v when engine start running any figure more or less shows you have a bad alternator or an incorrect input current to the alternator....hope this fixxx it?

Your alternator is not charging the battery. Remove it and have it tested at your local parts store. Fully charge the battery with a charger. If the alternator tests good, reinstall it and start the car. Check the voltage at the battery and also at the alternator on the big charge wire terminal. Report the voltages here for additional troubleshooting steps.

an easy check is to start the car & disconect the ground wire while the car is running, if the car dies it is the alternator that is not working.

If you need a jump start, your battery is flat.

That means that it no longer holds its charge, or isn't getting charged up properly by the alternator.
Go to a battery shop, they should check it out for free.

Once the engine is running the alternator takes over to keep it running while sending a chrge back into the battery to make sure the battery is charged back up enough to start the engine the next time. If the car continued to run for a while after you jumped it, it may not be the alternator.

If you can get it jumped again, let it run for 10 minutes or so, if it continues to run, it's not the alternator, but more likely an issue with the battery.

If the car is running okay once it's started, you may want to go to a local parts store and have them check the battery and alternator with a diagnostic system. Most of them do not charge for this test.

I hope this helps.

Have you checked your battery???
A bad battery will not hold a charge. When you jump it to start it it will then keep running on the power produced by your alternator.The alternator will be trying to charge your battery but will not be able to if your battery is bad.

the ignition maybe bad are the car is not all the way in park also check the battery to make sure it has a good charge and it does not have a bad cell in it and the terminals are clean.

Check for loose battery terminals. Car will not start without jump because battery is not connected properly. Starter is probably good or car would not start with or without jump. If alternator is bad and not producing current, car would die after running a short while as battery would out of juice and without alternator current the car would die - so probably alternator is good. If connections are all good, get a voltmeter and test the battery voltage - it should be over 12.75 volts. If not, battery is not holding charge.

Alternator is bad. It is not charging the battery as you drive.

its the battery. the battery holds the charge and the alternator charges it so when you jump the car it stays running because you alternator is providing power when you shut the car off you have a bad battery that isnt holding the charge needed to start it again.