your key switch may be bad. There is a little shaft that gets weak and breaks in your ignition switch. you can check it by removing the plug to the switch on the left side, check to see if the little shaft is broke. If so you have to change the ignition switch. (key switch.) good luck.
Take the steering column housing off (usually held by 4 screws from the bottom) and remove the starter cap from the back of the ignition cylinder. In a Nissan, the ignition cylinder usually has a T shaped pin which turns the starter. if you can start your vehicle by turning the starter cap with a screw driver, you probably don't have an issue with the starter.
This could be a bad ignition switch, ignition relay, or ignition fuse.
You have a starter/ignition switch mounted in the steering column and you have a starter solenoid switch that is mounted to the starter.
on top of your steering collum.
Can be a defective ignition switch which I suspect is your problem. Not the tumbler you insert the key into but the ignition switch located down under the dash behind the steering column. Can also be a loose or corroded battery cable, or the connections at the starter. There is a starter solenoid that can be bad but it is built into the starter which you replaced.
Starter Ignition Neutral switch
so you replaced your entire steering wheel and switch and that did not work and was told you needed a starter. The starter was replaced and that did not work. Now it is the crank sensor and ignition module. Not sure of the symptoms, you were not spacific.... Maybe you just need to reprogram the Passlock Anti-theft system to recognize the new key. If you attempt to start the vehicle with a key that it does not recognize it will start for a second and then die, the injectors are disabled by the system. If the car turns over and does not start, I would guess that this is your problem since you changed out the ignition switch. Research the Passlock system. I am guessing you need to do a reprogram.
There is a solonoid on the starter and the ignition switch is on the steering column.
Your neutral safety switch-try putting car in neutral and trying it
check the ignition module. you might have to take apart the steering colum so i would go get a Chilton manual
Check fuses and relays. If you have power coming from the ignition switch but not getting to the starter there might be a bad fuse or relay or wire. Also make sure you have the wiring correct to the starter since you just replaced it.
On a 1986 Lincoln town car, the ignition starter switch is located near the bottom of the steering column. It has a rod going into it that operates it from the key lock assembly.Ê