The fuel pump relay is located in the cab near the floor behind the driver side kick panel. The attached links below contain additional information about your truck.
Fuel Injected? In the fuel tank
If it is like the b2600i and b2200 it should be right behind the driver kick panel.
the fuel pump relay for a Mazda b3000 is under the hood. It is a 15 amp relay in the fuse box.
location of fuel pump relay
Where can I find the fuel pump relay on a 2000 mazda 323
The 1995 Mazda 626 fuel pump relay switch can be found attached to the frame, next to the gas tank. The relay switch should be labeled as such.
On a 1988 Mazda 626, the fuel pump relay is located in the fuel tank. Always disconnect the battery before beginning work on a fuel system.
The fuel pump relay switch, on your Mazda automobile, is located on the outside of the gasoline tank. The relay switch will be just above the fuel line.
The fuel pump relay on a 2002 Mazda 626 is located in the engine compartment on the driver's side. It is in a bank of relays just behind the battery location.
Under the hood in the fuse/relay center.
on a Mazda 626 there is a fuel pump relay check to see if you have a power signal from the relay to the pump, if so make sure there is power to the pump.
The relay is located under the hood in the relay bank on the drivers side of the engine. FYI the relay is the same as a headlight relay...which is cheaper than a fuel pump relay.