wiring diagrams can be had here for free download (if you haven't already) Download
Be certain relay contacts are clean; check grounds. There are fuses on the RCM and in the under hood box; have you checked both places?
Check continuity with ohm meter between RCM wiring and pump. Rodents chew wires in a single night.
I believe pump only runs a few seconds and then shuts down unless car starts; check fuel pressure at rail fitting on engine.