No power to fuel pump

i have the vehicle listed above, Isis. i'm not getting any power supply to the fuel pump during ignition nor cranking. i checked the fuel line to the engine and no fuel was coming up, so i checked the pump connection for power and didn't get any, but if i run 12v straight to the pump, the vehicle will run fine. checked fuses and relays, i have no burnt fuse. checked some websites online and my circuit opening relay is below the steering wheel, it's the blue 4 pin relay. i exchange the relay with the horn relay, and i still don't get anything at the pump, and the horn still works after the exchange. i tested where the EFI and horn relays are to try understand which side of the relay would get power during ignition and which side has constant power. after that, i tested by the circuit opening relay and realize i only have constant power. i'm not getting anything when the ignition is on. i hope i can get a feedback soon.