BMW 120i ABS fault light on while driving

2017 BMW 120i, B48, 2.0t, traveled more than 50,000 kilometers!
Fault phenomenon:
The instrument lights up while the vehicle is driving! Limit power output!
Go to the repair shop and use the computer to detect the fault code: left rear wheel speed fault!
Fault phenomenonFault phenomenon
Fault analysis:
Turn the wheel and use the computer to read the four wheel speed data! Only the left rear wheel has no data output, and the other wheel speed data is normal!
Analyze the fault code:

1. Sensor failure.
2. Line open circuit or short circuit.
3. ABS pump failure.
   Fault analysis
   Solution:
   Swap the left and right sensors of the rear wheels! Same installation!
   Read the data, and it becomes that the right rear wheel has no data output.
   This proves that the sensor is damaged!
   Replace the rear wheel ABS sensor! Read the data normally!
   Eliminate the fault code, and everything is normal during the test drive!
   Smooth delivery!