ThinkDriver is a free, smart, and easy-to-use tool that makes car diagnosis and repair much easier. It can save you thousands of dollars in labor and parts costs. With this app, you can diagnose problems with your vehicle quickly and easily. You don't need to have any other tools or be skilled in any other area. All you need is your smartphone.

With this app, you can perform the following tasks:

Clear codes and error messages: This tool can read all the messages and data stored in the car's computer, which can help you find out the cause of the problem. It can also help you to know the specific error code and the type of error. 

Data flow diagram: It can also help you to know which data is sent when and where.

ECU read/write: This tool can read and write to the car's computer.