Hi, for the electric cracks this will probably conjure up a smile on the face, but I still ask. The following: For several days, I have been studying various schematics to specific circuits. Up to now, I could assign some relays and fuses which was actually the most difficult for me. In my narrow choice of fault causes, 3-4 relays and their associated fuses have come. Now my actual 2 questions. a: Can you, if I have a similar design, It can find relays in the circuit, replace the suspect with this doubtless, to check whether it is due to this relay? b: The relay in the annex, one could, at ignition one, bridge the pin 4 and 8 on the relay base to check the circuit for intactness? Or is that in the end even more complicated, as I already thought.