I don't have access to that information but there are two companies that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subscription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have,much better than generic workshop manuals from parts stores and much cheaper than the factory manual try Alldata which is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online or Mitchell on line http://bit.ly/Mitchell1_Online_Repair_Manuals and get an online repair manual subscription. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info.
and get an online repair manual subscription.
In the battery junction box under the hood, the fuel pump relay is the 3rd of the smaller relays, about halfway left to right, at the top.
What problem are you having? This vehicle supplies fuel via a sending unit to the high pressure fuel pump, which supplies fuel to the injectors directly. I have not seen any faulty relay issues with the 6.4L.