Toyota car will not start?

This problem is noticed on Toyota corolla model.
While starting the car it only makes click click noise but car will not start.
Also some times this click click noise does not occur but car will not start.

On that basis the troubleshooting possibilities are as follows :-----
These engines do have some starter problems at higher mileage.Also there is clicking noise when trying to start? 

Does moving the shift lever back and forth a few times help?

See if shift lever moving helps to start it, usually when the starter goes out it will make a clicking noise indicating the solenoid is working, if there is no noise at all it may be a problem with the neutral start switch located on the transmission, providing the battery connections are clean and tight with no corrosion on them.

Then this possibilities should be inspected to confirm the problem.

This will help.

Thanks.

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