2001 suzuki swift fuel pump replacement do I need to drop the fuel tank?

Yes
2006 Suzuki swift fuel light Google Search

the FSM book covers this. (ill do the full tank pull... as you never said the JOB!)
its siphoned to near empty. (use a hand pump for fuel , sold at all boat center)
do you need the FSM page quotes?
on some cars there is an anti-spill roll over check valve
at tank fill port making siphoning very hard.
my answers are USA cars, on this USA forum.... and swifts vary big time world wide..... dig?

quoted. (no smoking no open flames, outdoors best. no shop heaters of ANY KIND near)
"tank pull steps. (sure drained)

1. Before servicing the vehicle, refer to the Precautions section.
2. Relieve the pressure from the fuel system. (in the FSM)
   
3. Disconnect the negative battery cable.
4. Remove rear seat cushion.
5. Disconnect connectors of fuel tank wire harness.
6. Hoist vehicle.
7. Disconnect fuel tank filler hose and breather hose from filler neck.
8. As fuel tank has no drain plug, drain fuel tank by pumping fuel out through fuel tank filler or fuel tank inlet. Use hand operated pump to drain fuel tank.
9. 1. Disconnect fuel pipe joints and fuel hose from pipes. For quick joint, disconnect it as follows:
      
      • Remove mud, dust and/or foreign material between pipe and joint by blowing compressed air.
      • Unlock joint lock by inserting special tool (part No. 09919-47020) between pipe and joint.
      • Disconnect joint from pipe.
   2. Remove fuel tank from vehicle.

It could be.
If you check the relay with a meter or test light and can confirm the relay is always sending power back to the pump, then the pump would be suspect.

Where can I locate and remove the fuel pump on a Suzuki swift 2005 car?

I believe the pickup tube that extends to the bottom of the tank and has a "sock" on it is the problem. I think it has a crack along it's length. Image drinking a soda through a straw with a crack in the side of the straw maybe half way down. As long as the level of the liquid is above the crack you can draw it up through the straw without a problem. As soon as the level drops even with or below the crack in the straw, you can't hardly draw any through because air is being sucked into the crack because it is uncovered. You're going to have to have the tank dropped and the sending unit replaced to fix this. I once saw this on a small outboard motor gas tank. Ran great with a full tank, but half a tank made it just barely run.

The fuel pump is located in the fuel tank. The tank needs to be dropped for this procedure usually. Look under the rear seat just to be sure. You may be able to locate a small panel under there which will allow access to the pump without having to remove the tank.

fuel pump cud be failin-test it along with the pump regulator in engine area--never replace parts till cure is known--sounds like regular maintenance wasnt done-fuel filter cud be clogged too--transmission fluid maybe low or needs changin or somethin internals worn

There may be accumulated precipitates on the pick-up screen inside the tank. Syphon out a sample of fuel add look for debris.
You may need to drop the tank and clean it out. There may be a relay pump in the tank if fitted with an external fuel pump.I'm pretty sure this has only the in-tank pump.

in the engine bay above the battery from memory is the fuse box for the main fuses & relays they should be marked on top of case one is for the fule pump.

hi
im dave
Is there a leak in one of the fuel lines? Check the length of the fuel lines from the pump (you may need an extendable mirror to see the top of gas tank) right up to the point where it enters the fuel rail on the engine. Take special note of the junctions and try to do it with the car running and at a slight idle so fuel is pumping. Check next for a smell of too much gasoline along the fuel rail as one of the injectors may be improperly seated and or broken and leaking. Has the service engine check engine light come on at all or come on and gone out. If your o2 sensor(s) go you use more fuel. If they go there should be a code stored in your PCM (computer). You can pull any codes out of that car by finding the connector and jumping it. Also if your air element(filter) or any pipes are clogged in that system up to the throttle body you will use much more fuel.

Let me know how these tests go