No power to fuel pump relay 1998 cadillac deville?

It gets power from right hand maxi fuse block , Ignition 1 fuse, 40 amp. through ignition 1 relay.
1998 Cadillac DeVille ' DeVille, Eldorado (VIN E/K) Service Manual ' Body and Accessories ' Wiring Systems ' Component Locator ' Document ID: 519143
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Engine Compartment, Near the Left Strut Tower

if it did not have an electric fuel before then the installation of an electric pump is a relatively easy process. If you have an electric pump already fitted but it has failed then remove it and install the new pump in its place. Take care to check all wires, fuses and relays and any pressure sensors for correct operation. Remove and blank of the opening for any mechanical pump on the engine
For new installation select an easily accessible place under the vehicle that can be protected from flying rocks and road debris. Run a power wire (red colour) from the run side of the ignition switch to the relay ( to be fitted ) near the battery or in the engine bay. Run this wire through an inline fuse close to the ignition switch to protect the circuit. attach to a coil actuation terminal of the relay.( look at the base of the relay for terminal identification. Run a black wire from the other side of the coil actuation pin on the relay to earth. Normally the same bolt that mounts the relay. Run a red wire capable of carrying 20 amps directly from the battery terminal through an inline fuse ( close to the terminal) to a power pin on the relay. Run another red wire from the outlet power pin on the relay to the electric pump. . Run an earth wire from the pump to earth.
This is a basic electric circuit for the installation of the pump. If there is a requirement for a pressure regulator or pressure sensor to control the pressure or pump operation , that control wire will be connected in series into the wire from the ignition switch so that when the pressure is reached then it breaks the circuit to the relay from the ign. switch and the pump will stop operation until the circuit is again completed. When the ignition switch is off there will be no power for the pump

Its possible you cooked the pump. The pump needs liquid gasoline to keep it cool and lubed. There's also a chance the pump is damaged from debris from the bottom of the tank.
If you have fuel in the tank, you would jumper the pump relay to find out if the pump is running and what is coming out of the filter under the car.

check fuel pump relay and fuses

A lot of times, the fuel pump relay and A/C relay are the `same parts and can be swapped.
If ya have problems with fuel pump, once ya swap relays...your A/C will have the problem.
Otherwise, you'll need to get a multimeter and use the printout on the side of the relay to check continuity.

There is none. On Ford vehicles there is an inertia switch that one can push to reset the fuel pump in the case of a collision or bump in the road.

The fuel pump relay is in the fuse panel under the hood on driver's side on top of wheel well. The fuel relay should be gray in color. The correct location is listed on the fuse panel cover

check fuel pump relay

Sounds like the fuel pump is drawing too much amperage. If so, it will burn up the relay.

Check for a burned fusible link under the hood. If you have power at the fuel pump relay, you could have a bad ignition switch or bad oil pressure switch...accordianman