1994 Buick Lesabre Fuel Pump Fuse

Did you try unplugging B+ at the ignition module? How long since a tune-up?

B+ is just battery voltage. The ignition module sits under the coil pack, where the plug wires go. The pink wire, carries B+ to the module. The circuit goes hot with the key on. Also, the cam and crank sensor shows to be hall switches, they get feed from the ignition module, something else to unplug. Did you unplug the pink wire at the module?

The relay to the passenger side should be the blower motor relay, next, ac compressor relay-- cooling fan relay low speed-- cooling fan relay high speed.

The voltage for the coil side of relay comes from the pcm, green/white wire.

Have you tried using the prime connector to run the pump? The prime connector should be behind the battery or close, red wire, has a connector, nothing plugged into it. If you use a jumper coming off battery voltage with an inline fuse, touch the connector, you don't have to use the key, the pump should run. At least maybe you can rule out that circuit?

Any circuit that you think may have a short in the wiring, make sure the wire is unplugged at both ends and that the circuit is isolated from any other circuit, use a testlite, one end of the lite connected to B+, touch the other end to the wire, if the lite comes, it's going to ground somewhere, you'll have to find it.