Hello, I ask a question here, find no suitable section for it. On a Mazda the AIR Bag lamp shines permanently. The car was for diagnosis twice in the workshop, but they do not find the error. If they have checked everything, they want to renew the control unit. To the question, if it is not, take back the control unit, the answer no, we can not return it to Mazda either. Now the light has all at once self erled Is it necessary for the workshop to expand the equipment again, or to take it back? It costs only a few hundred euros. Jan.