Problem to connect Corsa 1.

To my Corsa 1.4 2010 the light of Check Engine is lit and I want to do the self -diagnosis process. Some tutorials say that you have to make a bridge between pins 3 and 5, and others say that the bridge is made between pins 5 and 6. My problem is that the diagnosis tab of my corsa has only pins 2, 4 and 5. Before commenting errors can you tell me in which corresponds to my model?

I don't know why I can't send you the file.
I upload it in the group of manuals, but send me an MP and tomorrow I send it to you by mail.
Hug