Hello, maybe someone can give me a tip, where I can get a circuit diagram? Or also a tip to my problem: Have installed original ZV, no control unit or in the driver’s door in the encoder, 2 switching units in passenger door and tailgate. Green control lamp extra left in the instrument unit. Current pulses also arrive in the receivers, but does not switch. If the receiver is controlled separately, close / open the receiver directly on the blue and white cable. nger. I am grateful for every tip. Greeting Stefan