Inhibitor relay would a inhibitor relay cause it to crank but not start

put a current meter on main lead to starter to see if it's drawing to much or to little power

HAVE THE MECHANIC CHECK THE CRANK SENSOR IF NOT CRANK SENSOR MAYBE TIMING BELT SNAPPED

its in the starter circuit not the ignition--a part is old and gained resistence--hav a datastream run to pinpoint component--its a scan that uses factory equipment and displays values--done at private shops--dont go to a dealer--make sure tech has xperienc figuring readout----to find a shop go to surecritic.com

Hi Jered, There is an inhibitor switch in the circuit which allows power during cranking and once engine has started. On early models the inhibitor is in the mass air sensor and on later vehicles it's computer controlled. Have someone crank the engine while you check electrical output with a test light or meter. Regards John

If by lights, you mean the dash lights come on, then ignition switch must be getting power. If dash is not working with key on, check the 30 amp fuse link which powers the ignition switch.
If switch is good and starter is good, the start wire from switch goes to, if automatic, to inhibitor relay (the park/neutral function) and then to starter. There is also an inhibitor switch on the shifter or on the transaxle that turns on the inhibitor relay when key is on and shifter in park or neutral. The inhibitor switch is powered by a 10 amp fuse D.
If you have a manual transmission, the start wire from ignition switch goes to the clutch interlock relay and then to the starter. This relay is turned on by the clutch interlock switch on the clutch pedal.
You can check for power on either relay, the inhibitor relay or the clutch interlock relay, with a test light. Pull the relay out, have the key held in start position. Now both relays would have power showing on two terminals where the relay plugs in. If inhibitor relay only has power on one terminal or no power at all, either ignition switch is not sending power or fuse D is out or the inhibitor switch is not working right. If clutch interlock switch does not have power on two terminals either the ignition switch is not sending power or the clutch interlock switch is bad.
If the relay checks are good, check for power on the small wire to starter with key held in start. If you have power there, the starter solenoid must be out.

many things will cause no start problems could have faulty ignition switch.use test light see if power going to starter if not check ignition fuse to starter.if power going to starter, more likely starter solenoid or starter faulty.if ignition fuse okay and starter and solenoid okay still no start problem could be in the ignition switch or inhibitor switch faulty.code scan for faulty theft security system which will also cause no start conditions.

Sounds likely. By not start you mean not crank right? when no go hold key in start posision & bump gear shift up to top (park) if start = inhibitor (Some are adjustable)

The starter inhibitor relay is located in the relay box just behind the headlight on the driver's side. It is Nissan part 25630-9662 and has six pins. There are two normally closed contacts that turn off cruise control when you start the engine. The other contacts are normally open and close to energize the starter solenoid when you start the engine. Power for the relay coil must pass through the transmission reverse/neutral safety switch when the transmission is in Park or Neutral. This switch is located on the side of the transmission and is reached from underneath on the front, driver's side. (Remove the plastic protective covering from underneath the engine in that area-it has about 10 screws.)

Sorry I am not farmilar with your car in particular but it sounds like your neutral start switch has gone bad. call your local dealer ask for parts department explain your neutral start switch is bad ask how much for part and availability,and where is it located my guess is he will tell you. if this was helpful please leave good feedback

There are a number of possibilities.
1) Dead battery. If the lights are OK and don't dim when you attempt to crank, then the battery may be OK.
2) Bad starter relay. If the battery is OK and you don't hear a click when you turn the key, the relay may be bad. They are cheap to replace.
3) If the ignition switch where you are turning the key is bad, then it won't start. To diagnose this, wiggle the key and see if that helps. Also move the key into different positions to see if one will cause it to start.
4) Your car is equipped with an electronic start inhibitor (immobilizer). The keys you received with your car are specially coded. The code in the key is transmitted to an antenna in the ignition switch where it is compared to the code stored in the start inhibitor module. The car can only be started if a properly coded key is used. If two of the keys to your car are close together, e.g., on the same key ring, when you try to start the car, this could cause interference in the immobilizer system and result in the car not starting. If this should occur, remove one of the keys from the key ring before trying to start the car again.