ABS Error

Hello dear forum. I’m facing a problem again and don’t know what to do. The vehicle is a Hyundai I10 from a well-known one. The vehicle is a Hyundai I10 built in 2015. Problem is that my friend has hit the road and then he has to brake hard because of the front man. Shortly afterwards ABS and ESP went on. Now I have sat on the car with the laptop. Reading shows that the ABS sensor in the rear Right is constantly standing at 21 kmh even if the car is standing. When I drive I get back left and on the right no signal. Bzw. Right 21 KMh. Since I didn’t really get into the error memory only live data could see I can see that the valves change the status on/off not available What I’ve done up to now: 1. Back right always 21 KMH stands I installed a new ABS sensor there. Unfortunately without success. At first was zero as soon as I started running like 21 KMh. 2. Cable checked for passage I didn’t take a short circuit when I took the plug off at the block. 3. ABS block Without success , error is smoothed as it is and the block still shows this status. 4. Read out during the ride. Right side 21 KMh, left side 0 KMH. 5. Backups changed tested. Also in the engine compartment. ABS block is not reachable even when I pull the fuse. Can both sensors be broken at the same time? Measuring with ABS block it shows clean 12 volts at the back of the plug of the sensors. Since the error is now on the right side also with the new sensor understands I don’t think so. Back left no signal could be ABS sensor but I don’t want to buy another one until the basic problem isn’t found. Since these bikes have ABS combi, unfortunately, they are very expensive. Visual inspection of the harness in the engine compartment does not seem to point out a mad bite. I just have no idea. Has there ever been such a thing before? Is there a cross point maybe a mass point on the car of the shit I can’t imagine that both ABS sensor I’m going to break the back because I have a strong brake, and that’s what the right side always shows 21 KMh with a new sensor. I’m grateful for more ideas or test stories without spending any more money.