2001 jeep cherokee sport will not crank

Car No Crank?

This procedure usually works:
·Check the battery cable connections:
Make sure the positive cable, makes a good connection at the battery and at the starter. Make sure the negative cable makes a good ground connection at the battery and (preferably) at the engine.

·Check the battery the simple way, like this:
Turn on the headlights, then try to start the car.If the headlights do not dim or go out, then the battery is likely ok.

·Check the starter and solenoid:
If the wiring looks ok, then look at the starter solenoid for a good connection, and proper voltage at the starter(10 volts minimum while cranking).
If the starter spins and no crank, the problem is most likely the Solenoid's bendix gear is stuck.
Have someone hit (not too hard) the starter while you try to start the car. This usually works by dislodging a stuck bendix gear.
·Make a simple test of the alternator:
If you can, somehow get the engine running, measure the voltage at the battery. It should be at least 13.6 volts to properly charge the battery.

But those are ignition parts. If the car won't crank, there is a problem between the battery, ignition switch, and the starter.
Try this, Darren: With key on, does your dash light up, gauges working and check engine light on? Turn key to start. Do you hear a click form the area of the starter? If you hear the starter solenoid click, and you know the battery is charged up good, then likely the starter is out, and needs to be taken off for testing or replacement. But that is assuming that the battery cables and their.connections are good and allowing full battery power to the starter.
If you hear no click in start, turn the headlights on and watch their intensity while someone turns key to crank. If the lights dim noticeably and no cranking, then the starter is bad or needs testing. If the lights don't change intensity when key is at crank position, then possibly the starter solenoid is bad or the circuit from ignition switch to the starter solenoid is not allowing current to pass. Take off the small wire (brown, I think) from the starter solenoid and see if it has power when key is in crank position. If it has power, the starter has to come off-it or the solenoid is bad. If no power on the solenoid wire with key in crank, then the circuit from ignition switch to the solenoid will have to be checked. There are at least a couple of components in that path- one is the starter relay, another is the neutral safety switch (or clutch switch on manuals). Also if no power on the solenoid wire, check the 30 amp fuse in the power distribution center by the battery. It may be fuse # 10, at least it is on a '97 Jeep. Heck, check all your fuses while you're at it.
Good luck.