I have a 93 civic 4dr EX, battery was dead, but when my brother, trying to help out, put the charger on the battery, he forgot to switch it from deep cycle/marine to regular charge. Now it starts, but the ABS and BAT light are on. What do I need to be looking at? I checked all the fuses and none are blown, so what am I missing? Thanks guys for the help.
Tim

 

Focus only on the battery/charge light. When this is fixed, clear the ABS code and only address if the ABS light returns, which it likely won't.

My guess would be that the battery was damaged by improper charging.

 

I swapped out the battery with a known good one from my 92 EG6, same thing happened. The fan barely blows on #4, the clock is dim and the power windows and moonroof are slow. I am leaning toward the ALT, unless I am missing a relay or fuse somewhere? Let me know what you guys think.
Thanks, Tim

 

Are the battery connectors/posts and ground wire clean and tight? With the engine idling, what voltage do you measure across the two battery connectors?

 

New battery and ALT, problem solved.