Try this http://wiki.answers.com/Q/How_do_you_clear_camry_trouble_codes
Use a error code reader to erase trouble codes or disconnect the negative cable from the battery for 5-10 minutes.
Water pump can cause the check engine light come on. But before you change anything use an error code reader to check which error the computer is reporting. If you go to Autozone (or probably other auto parts retailers) they will hook a code reader up to your car and read it for free.
Disconnect the battery for 5-10 minutes or use an error code reader (it has an option to erase codes). But if you have major problems with engine the light will come off again.
It means that you have problems with your engine. It can be the oxygen detector or another malfunction. To make the story short you have to visit your mechanic. Or if you have an error code reader youcan check error codes and figure out what to do next.
Most likely it is on because one of sensors is not working properly. You will have to replace the sensor(s) if you want the light to go out. If you have an error code reader use it to find out which sensor has failed (there are at least 2).
use a code reader to check the problem and it will reset the light, but if you do not fix the problem the light will continue to come back on.
One of sensors which are located on each wheel is not working properly. There are at least three ways. First, one is to check each sensor, without special sensor it will not give you 100% answer; the second one is to use an error code reader with ability to recognize ABS problems; the third one is to bring the car in a Toyota service let them deal with the problem. Combination of first two will allow you to save some money, but you have to have access to the error code reader.
This sounds like the description for the cruise control indcator light. That is how the light looks on my 07 Camry. Although the arrow is on the left side of the circle is should be pointing IN not out.
There are thousands of reasons. You need to pull out error codes. You can do it at local autozone store.
Check the car computer for error codes, google them.
There are at least two ways. The first one is just to disconnect the battery for couple minutes. The second one is to use the computer code reader to erase error computer codes.
Use one of those error code readers.