Hello Volvo fans, I have a Volvo 850 with which the ABS lamp lights up and I have to pass the Tüv. I have already read a lot and just tap on the cold soldering points (or hope it is) as it is classic with the 850. I have read out the error 4-4-4 was the first one. He cannot be deleted. The lamp does not go out. To the vehicle: Volvo 850, EZ 11/1994, Kombi I would like to expand the control unit and check the soldering points. But I can’t find it. can someone tell me where it is? Would be very grateful about quick help. Sincerely 0x7