where is the charging sensor located

your charging sensor. I would think that yuor alternator might not work.

Agree with answer 1. Have the alternator checked.

Ask the mechanic at autozone to get the 'charging sensor' --Maybe he called it something else? No listing for a charging sensor on Autozones website. Save yourself money by having the car checked by a shop equipped to properly diagnose it.Sorry about the 'cold' tone , but that is how I think you will save money, and I'm all about that!