What causes the ABS light to come on in an Audi 80?

I've noticed that my ABS light has been coming on intermittently while driving my Audi 80. What could be causing this issue and how can I fix it?

There are a few potential causes for the ABS light to come on in your Audi 80. One possibility is a malfunctioning ABS sensor, which is responsible for detecting wheel speed and relaying that information to the ABS control module. This can be easily fixed by replacing the sensor. Another potential cause could be a faulty ABS control module, which may need to be replaced. It's also possible that there is a problem with the wiring or connectors related to the ABS system. If you're not comfortable checking these yourself, it's best to take your car to a trusted mechanic for diagnosis and repair.