Hi Viking, how could I check the current?Is there any possibility in a display menu to go into it?So far,I have not spent any time to have a look what I can do with the display and its values.Have a look at "Toyota FBE15 Error Code" in this forum, there is more about CO error code and my case as well. You might help me more.thanks. As to the sensor- there are 2 same sensors in this control unit- 1 for drive,1 for pump motor, I have compared them-did not see any different , however, I did swap them, I will see what is going to happen.The car is 50km away from my workshop, so I have to go there.