The more thorough way would be the following:
1. Access inertia switch located behind the kick panel on the passenger side and check for power on the Dark Green/Yellow (DG/YE) wire while the engine is cranking. If power is present on the DG/YE wire, check the Pink/Black (PK/BK) wire with the switch connected to verify power flow through the inertia switch. Address the inertia switch or connection as needed.
2. If no power is present to the inertia switch on the DG/YE wire while cranking, access the Central Junction Box (CJB) under the passenger end of the dash. Check for power out on the DG/YE at pin 22 of the C270a connector while cranking. Also check fuse 40 (20 amp) of the CJB for a blown or poorly connected fuse and address it if needed.
3. If fuse 40 is ok and there is no power on the DG/YE wire when cranking, locate the Light Blue/Orange (LB/OG) wire at pin 10 of the C270f connector. Backprobe the LB/OG wire with a jumper and ground it. This should activate the fuel pump relay which is internal of the CJB and result in power out on the DG/YE wire at pin 22 of the C270a connector and make the fuel pump run.
4. If grounding the LB/OG wire does not result in power flow out of the CJB on the DG/YE wire with the ignition in the run position, it would suggest that one of these circuits has a terminal mating issue at its connection to the box or the internal fuel pump relay of the CJB is defective.
Failure of the internal fuel pump relay will result in the need to replace the CJB as an assembly. The fuel pump relay is not a serviceable component on this vehicle.