I can not find a book that has a fuse and relay diagram for a 94 nissan pathfinder.This truck has problems. I sure could use some help.

I don't have any diagrams, but maybe this will help:

. Test all under hood and under dash fuses with a test light or multimeter:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-3.html#post252145

. Disconnect the negative battery cable and carefully remove each relay from the under hood fuse and relay box. Clean contacts with abrasive cloth. Several days ago I had to remove the A/C Clutch Relay from the under hood fuse and relay box and clean the contacts with abrasive cloth. The A/C compressor was not turning on--only blowing warm air.

Without knowing more, these suggestions may help get you started.

I can not find a book that has a fuse and relay diagram for a 94 nissan pathfinder.This truck has problems. I sure could use some help.

What system are you having problems with? What are your symptoms?