engine prob...

[MaRcismO55]

I have a 91' 240sx se w/ Super Hicas. My car has been acting up and the brake and hicas light are on in my car. The battery light is also on, but is not as bright. These lights never came on before (i dont think my hicas even works). The only things i did before this happened was rewire my factory foglights and cleaned my motor w/ degreaser. I was told it was my battery or my alternator. I got my battery check and it actually read a 13 which is pretty high. I also swapped my alternator and this problem is still happening. I would appreciate any help i can get from you guys.

-Marcus