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Hello. Today we will talk about diagnostics of such a problem as lack of communication with the control unit of the all-wheel drive of the Haldex 4th generation clutch. The problem is that the all-wheel drive does not work, the car drives on the front wheel drive only. The dashboard lights up an indicator of a non-working tire pressure system and a malfunction of the ESC stability control system. In this regard, I will carry out a full diagnostics of the all-wheel drive system, namely, I will connect VASYA THE DIAGNOSTICIAN, let's see what's going on in the brain. We will study the material part with the help of Elsa, look from the pit at the rear axle, the HALDEX clutch unit and the clutch itself, check the wiring, its integrity. We will ring the wires of the CAN connection, power and minus. Of course, all the diagnostics and solution to the problem will not fit into one video, so there will be several episodes. Next, about everything in order. Watch in this video! It will be interesting. If at some point something is not clear, there are questions, or you disagree with something, ask questions, write comments, let's talk, discuss. If you are interested in this topic, put your thumb up, subscribe to the channel. Thanks for watching. #THEmasteROCKTV