Question

How can I fix this trouble by myself? 2004 Toyota RAV4 2004 with engine code P0627

Answer 1

The engine code P0627 indicates a problem with the Fuel Pump. Replacement of the Fuel Pump is necessary to resolve the issue. Here is a link to the code page with more information:

P0627 Toyota Code - Fuel Pump Control Circuit Open
Read more: https://www.autocodes.com/p0627_toyota.html

Answer 2

2004 Toyota Rav4 does not use code P0627, try to use a different OBD-II reader the one you are using is not compatible with your car.