Does anyone know where to find a fuse diagram for a 1993 Nissan Altima?
http://www.alldata.com http://www.helminc.com And, try your local library for Chiltons or Motors manuals Also try pulling fuses out one by one (replace each time) to see what electrical devices are on each fuse. Your local auto store has Haynes or other repair manuals with electrical wiring diagrams too.