What is the reason for the ABS light being on and the steering wheel losing power assistance in a Mondeo?

[LaJoanna]

Possible ABS sensor failure. Below is relevant information: Anti-lock Braking System: The Anti-lock Braking System (ABS) functions by automatically controlling the braking force magnitude during vehicle braking, preventing wheel lock-up and maintaining a rolling-sliding state (with approximately 20% slip ratio) to ensure maximum wheel-to-ground adhesion. Development History: The evolution of ABS systems can be traced back to the early 20th century. By the late 1970s, rapid advancements in digital electronic technology and large-scale integrated circuits provided the technical foundation for practical ABS applications, leading numerous companies to develop various forms of ABS systems.