When I turn the key nothing happens. No clicks, no crank. All of the lights work properly. No dimming or turning off when I try to start. This has happened a few times before. The first time I put the car in gear then put it back in park and it started. The second time that didn't work; I disconnected the battery (I don't really know why), stared at my engine blankly for a few minutes and then put it back together. It worked after that. Now it is happening again. Shifting to neutral/park isn't working neither is disconnecting the battery. No codes, unable to start to take to mechanic.

Do a load test on battery --- check and test starter - relay and circuit

If there's no 'click' when you turn the key there's a good chance that the starter relay isn't firing. Cheap part and easy to replace.

make sure car is in park or neutral, if still nothing, make sure battery terminals are clean, just because the dash lights work does not mean there is good enough connection at the battery to start the car. Make sure battery is fully charged. If still nothing, sometimes giving the starter a tap with a hammer will get it going again. Good luck.

If you are hearing clicks when you turn the key and if you know where the starter is, get under there and tap it with a hammer. Sounds archaic but when they start to go bad they stick. When you turn the key, the starter acts like the old hand crank you see in movies to spin the engine. When you release the key the starter believes it did its job and goes dormant. Anyway, if you hear clicks when you turn the key and if it starts after hitting it that is likely your problem.

check for starter relay problem as there is no power getting to the starter. because of the immense drain on a battery during starting the lights will dim slightly and if that is not happening then the circuit to the starter is not complete.. Check the start wire on the starter solenoid is on the right pin.

make sure is ither neutral N or P. it looks like you have en electrical problem check ing. switch check for a blown fuse.

bad or dirty connection at battery poss negative

You are losing power in ignition circuits. Get out your voltmeter and start tracing the circuits till you find the offender.

If it was a no brainer, why are you asking?First is the battery ok? headlights work bright? horn? if they do, then what happens when you turn the key? lights dim? go out?nothing? click? if no click, check the connections at the battery, then check the little wire at the starter, it shoul dhave power in the crank mode, if it does, the starter is bad, if no power, then check if the car is fully in park, or try to start in neutral. If someone can hold the key in the crank mode while you whack the starter with a wrench or hammer (lightly) and it starts, the starter is bad.

if you turn headlights on and turn key to start do you hear clicking? if so starter is possibly bad,lets trouble shoot your problem.suggest you check the fuses under hood in black box,make sure those are good. when you turn the key, you should hear at least a click or else the starter is not drawing current.try turning the headlights on and at same time turn the key and try to start, if lights go dim the starter is drawing current, does it click? if so then bad starter. if no noise at all,,still could be a bad starter.suggest that you remove the starter and have it checked out.also make sure the car is in park for sure before you do any of this. hope this helps!!