Hello, I tried, among other things, to change the ABS ECU with a friend’s Volvo V70 (Bj 99) today. Since it always causes problems with higher temperaturs and I suspect that it has a defective soldering point, I had bought another used one via classified ads. So I solved the 4 E5 screws of the ECU, pulled the ECU down a little bit (was quite difficult because after 20 years the first time solved, I think), just to then determine The old control unit inside has 3 “records” more than the replacement unit, so action was canceled and bolted back again. I tried to solve the plug, but this was so difficult that I left it then, so it was never really removed. When starting the engine and the first meters I noticed that 1. The speedometer fails (including mileage, the total mileage is displayed nciht!) 2. The ABS symbol lights up 3. The red exclamation mark En lights up (second or third lamp from right, I think) 4. The service lamp lights up I’m surprised how can this all hang together? Is the ABS ECU connected to the instrument cluster that it can make such mistakes? I would be glad to help