How do you enable or reset the ABS sensor in a 2002 Volvo S80?

To enable or reset the ABS sensor in a 2002 Volvo S80, you can start by disconnecting the vehicle's battery for about 15 minutes to clear any fault codes. After reconnecting the battery, use an OBD-II scanner to check for any ABS-related trouble codes and clear them if necessary. If the ABS light remains on, inspect the ABS sensor connections and wiring for any damage or corrosion, and consider replacing the sensor if issues persist. Always consult the vehicle's service manual for specific diagnostic procedures.