1995 nissan pu wont start... everything turns on

check ign switch and all the relays clutch has a safty switch may be a bad relay

wire may be loose or your ignition switch could be bad hard telling if it was me id just install push button start cheap and easy to bypass all that

Not an expert on non-us Nissans, but there should be a clutch switch to prevent you from cranking the engine in gear.
I would check the circuit with that switch.

I am assuming that the starter will not crank over when you turn the key.It sounds like the starter solenoid is toast.Get a meter and see if there is power to the solenoid when you turn the key.It will be the smaller gauge wire .If you have power to the solenoid and you get no cranking then you will have to replace the starter(they are one unit)

try to supply direct power to the starter.if the car start then the problem is between ignition switch and starter

Under the hood you will find the clutch fluid reservoir check that for low fluid. It's possible you have a minor leak on the slave cylinder.

I just fixed my exact same problem. Everyone told me the starter was bad. I knew it had to be electrical because there was no noise when I tried to start the engine. Here's a good way to check to be sure your starter is not the problem. With your key removed from the ignition, the truck in neutral, and the parking brake applied, look under the hood and over the wheel well on the passenger side you'll see a long (about 6-8 inches) black box. This has a removable cover. Take it off and you'll see a bank or relays. First, swap out a relay from another spot on the relay block with the relay in the Clutch inhibit relay spot. The relay location should be marked on the top of the plastic cover. If your truck starts, then you know you have a bad relay. If it still doesn't start, remove the relay from the clutch inhibit socket. Next, take a piece of wiring, about 1 foot will do, and touch one end to the positive post on the battery and the other end of the wire to the socket. If you are looking down at the socket, you'll see 4 prong recepticles. The one to the right and closest to you should be the one you touch with the wire, if the engine doesn't crank, then try the other prong just above it. If the starter makes no effort to spin, then the starter is bad. If it does spin, then you have an open circuit somewhere between your battery to your clutch switch, ignition switch, back to your clutch relay. Rather than try to open harnesses and trace the wire, I just installed a push button and mounted it next to by fuse box below the steering wheel. A wire from the positive post to the button and back to the clutch relay socket took care of my problem.

You didn't give me a lot to go on but I'll try. First make sure the battery has a good charge. If the head lights come on and all the electrical items power up than the battery terminals should be ok. If not or the lights dim badly when you try to key start clean the battery terminals. If it still will not crank, (turn over,) than it is more than likely the starter. Good luck.

Sounds like you are not getting ignition power. Have you checked all the fusable links under the hood? Could be an ignition switch as well.

Check your intake and exhaust modules. I have a 1987 D21 and had the same problem (if I understand your post). I replaced the modules located behind the driver side headlights and it fixed the problem. Good luck! I hope this helps.