Crankshaft wont turn but motor start up battery and brake light on battery light on

If the battery has gone low again, I would check the alternator and charging system.

If I have it right, the alternator will not turn. This might likely be a frozen bearing, if in fact this part is causing the problem.
If the fan clutch is not turning, it may also be a frozen bearing, if this part is the problem.
If the crank pulley is turning, then the motor runs, and the problem is one of the other units that are driven by the serpentine belt that brings the power from the crankshaft.
You also may have a frozen idler pulley, or a frozen water pump, or a frozen power steering pump.
God bless your effort.

Answered on another page.

How old is your battery? Usually batteries die like that. The fans, lights, etc all use much less current (power) than the starter motor does when turning over your car. Many people are misled by seeing lights and assume their battery is ok. Auto parts stores like Autozone will test your battery for you for no charge, just have to get your car or battery there.

Does the starter spin the motor at normal cranking speed? If there seems too much friction, try turning the engine over by hand to check if the engine turns freely. Put a socket and wrench on the center crankshaft pulley bolt and turn clockwise. If you cannot turn the crankshaft with a wrench easily, then the starter can't either. Turn the crank all the way around to check for something preventing cranking.
Is the battery still enough power to crank at normal speed? If it's already too low, recharge it, and try again.

Your key switch may be bad or a loss wire grounding out

P0336 Honda - Crankshaft Position Sensor 'A' Circuit Range/Performance

Possible causes
- Faulty crankshaft position sensor
- Crankshaft position sensor harness is open or shorted
- Crankshaft position sensor circuit poor electrical connection
- Signal plate may be damage
- Starter motor may be faulty
- Starting system circuit
- Dead or weak battery

Add oil. Check your Brake lights. If they do not work, the problem with starting is the brake safety switch. You are required to put your foot on the brake pedal to start your car.

If the brake safety switch is broken or knocked loose of the holder on the brake pedal lever, you will not get the release signal to engage the starter.

sounds like a locked motor get a socket and a cheater bar and see if you can turn the crankshaft bolt if not then the motor is locked up but if it does turn please tell me

Have you tested the wire to the starter motor solonoid to rule out the starter itself? You can either connect a lamp to the wire where it plugs into the solinoid or remove the wire and connect a live wire to the solinoid itself to see if it turns over. MAKE SURE IT IS NOT IN GEAR AND CANNOT MOVE first.
Another thing that causes this symptom is loose battery connection- there is just enough juice getting through to light the dashboard but not enough to turn the starter over. This is often followed by the dash lights not coming on again after attempted starts so is probably not the problem in your case.
Richard.