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Now running at 14V with a new alternator. Hopefully that also takes care of my P1491. Thanks again everyone for your help.

Thanks everyone for the advice. I will pick up the alternator tomorrow.

I was actually looking at Advance Auto and they have a 160A for $121 with a 32 core charge (Link). Any ideas if it is worth it? It is probably the only place close by that has one that does not involve the dealership. Plus this is my DD and I have to get it working soon.

Thanks for the replies. Are there any other tests that I might be able to perform to be a bit more certain? Also, if it is the alternator are there any recommendations on what to get?

My jeep is a 2003 limited. The battery is labeled Jun 07 if I remember correctly.

Greetings, I was wondering if I could get some help. Today I noticed that my check engine light came on, I was getting error code P1491 (Cooling Fan Relay Control Circuit). I tested the fuse and it tested good so i assumed it was a bad relay and ordered it. Then a few hours after my battery...