The light of a thousand does not turn on when putting contact

Hello.
They have modified the ITV and now they give it to you as a serious defect not doing the engine check, the famous light. I have a fusion and it does not turn on by putting the contact, however there is a test that can be done from the painting itself and there if it turns on what is not the light. Something similar happened to him, how can you solve ???

By the way I have the EML327 with Obdll and when I connect it, it does not recognize it, so I cannot check anything