with the key in the on position, is sending power to the fuel pump and turning it on. if your relay is clicking, then the switch is bad and shorting out. locate it in the trunk of the car, or whereever it is depending on the model of 240sx, and replace the relay switch, if you know what you're doing. if not, have a mechanic do it, which will cost under $100 for less than 1 hour of labor. granted you supply the new relay switch. make sure you tell the mechanic exactly what you want done, otherwise they will try to find other things to charge you money for.
under the hood passanger side there is a fuse block its in there
In the right fender right behind the battery
Its in the engine bay in your fuse/relay box.
there is a retract control relay, i don't know where it is but look at the fuse/relay boxes under the hood, it should be marked
Open your hood look down to left see fuse box above battery, voila its in there.
I just had this problem. First check your fuses then disconnect the relay and reconnect it, they get loose from time to time i need to find the fuse
if it's like the s14..it doesn't have a relay..
It is in the fuse panel located in the engine compartment, it should be right above the battery. The fuel pump relay is in there, but if I remember correctly, its coded "EGI pump" on the diagram.
If you mean the ignition relay its in the drivers footwell behind the fust box. brown relay on top
Relay is located in the Fuse /Relay box on the right wheelwell just next to the battery. It is labeled "egi pump". EGI apperently stands for "you'll never figure out what this means", since it isn't referenced anywhere. ---- EGI = Electronic Gas Injector ~Rin5
the flasher relay is under the driver side dash on the right side of the steering collum. on the left is the brake relay and another one
I havent actually looked for mine but a good trick is to have another person at the engine bay, switch the headlights on and off and listen for the relay that will click