what does it mean when my BMW 3 Series G20/G21 (2019-2024) ABS light comes on?

Safety Warnings

• ⚠Safety Warnings:** Ensure the vehicle is parked on a flat surface, and the ignition is off before starting work.
• ⚠Connect the OBD-II scanner to the vehicle’s diagnostic port.
• ⚠Turn the ignition to the "ON" position without starting the engine.
• ⚠Retrieve and note any error codes related to the ABS system for further analysis.
• ⚠Locate the fuse box and identify the ABS fuses.
• ⚠Remove the fuses and check them for continuity using a multimeter.
• ⚠Replace any blown fuses with the correct amperage.
• ⚠Raise the vehicle and remove the wheel corresponding to the sensor.
• ⚠Visually inspect the wheel speed sensor for damage or disconnection.
• ⚠Use a multimeter to test the sensor’s resistance and ensure it is within specifications.
• ⚠Locate the ABS control module, usually found near the brake master cylinder.
• ⚠Inspect the module for any signs of corrosion or physical damage.
• ⚠Check the wiring harness for loose connections or breaks.
• ⚠Open the brake fluid reservoir cap and inspect the fluid level.
• ⚠If the fluid is low, top it up with the manufacturer-recommended brake fluid.
• ⚠Check for any leaks in the brake lines or at the calipers.
• ⚠Locate the brake pedal switch near the brake pedal.
• ⚠Disconnect the switch connector and test for continuity using a multimeter while pressing the brake pedal.
• ⚠Replace the switch if it fails to operate correctly.
• ⚠Clear any error codes using the OBD-II scanner and turn the ignition on.
• ⚠Test drive the vehicle to ensure the ABS light does not re-illuminate.
• ⚠Monitor the operation of the ABS system during braking to confirm functionality.
• ⚠Check for any new error codes after the test drive.
• ⚠Regularly inspect the braking system as part of your vehicle maintenance.
• ⚠Use high-quality brake fluid and replace it according to the manufacturer's schedule.
• ⚠Address any braking issues promptly to avoid further complications.