what does the ABS light mean on my Volkswagen Golf MK7 (2015-2019)

Solution

1. Preparation

• Gather necessary tools and materials.
• Ensure the vehicle is parked on a level surface and the ignition is off.
• Disconnect the battery to prevent any electrical issues while working.

2. Scan for Error Codes

• Use an OBD-II scanner to read any stored ABS error codes.
• Document the codes for reference during repair.

3. Inspect Wheel Speed Sensors

• Locate the wheel speed sensors at each wheel hub.
• Remove any dirt or debris around the sensors.
• Disconnect the electrical connector and inspect for corrosion or damage.
• Test the sensor resistance with a multimeter, comparing readings to manufacturer specifications.
• Replace any faulty sensors.

4. Check ABS Module and Wiring

• Visually inspect the ABS module for any signs of physical damage or leaks.
• Check the wiring harness leading to the ABS module for frays or disconnections.
• Use a multimeter to verify voltage and ground signal integrity at the ABS module.

5. Replace Brake Fluid (if necessary)

• If the brake fluid is contaminated or low, remove the brake fluid reservoir cap.
• Use a brake bleeder kit to flush out old brake fluid and replace it with fresh fluid meeting VW specifications (typically DOT 4).
• Ensure to properly bleed the brakes to eliminate air from the system.

6. Reconnect Battery and Clear Codes

• Reconnect the battery terminals.
• Use the OBD-II scanner to clear any stored ABS error codes.
• Conduct a test drive to check if the ABS light remains off.