How do you replace the fuel pump on a 1994 Toyota 4 wheel drive?

To replace the fuel pump on a 1994 Toyota 4WD, first disconnect the negative battery terminal and relieve the fuel pressure by removing the fuel filler cap and disconnecting the fuel pump relay. Next, access the fuel pump by removing the rear seat and the fuel pump access panel. Disconnect the fuel lines and electrical connectors, then remove the retaining ring to take out the old pump. Install the new pump by reversing the procedure, ensuring all connections are secure before reassembling.