Audi ABS Light Came On
Have trouble with the ABS light on your Audi’s dashboard? Know what it means and learn how to fix it by reading the guide below.
When the Audi ABS light stays on, there is a problem with the Anti-lock Brake System (ABS). Audi ABS malfunctions can also trigger the BRAKE, ESC, or EDL lights to come on simultaneously.
Under normal conditions, the ABS light will only come on for a couple of seconds when you turn on the ignition and then turn it off. It is normal for the Audi ABS light to flash a few times, for example, when the vehicle starts to slip during hard braking.
Symptoms
You may also see ESP, ESC (Electronic Stability Control), EDL (Electronic Differential Lock), Brake light, and ABS light.
What Causes Audi ABS Light to Come On?
Common problems that cause Audi ABS light to come on include:
- defective or dirty wheel speed sensor,
- control module failure,
- bad clock spring,
- low brake fluid level,
- blown a fuse,
- bad ABS Pump or Module,
- Electronic Differential Lock (EDL) problem,
- the brake light switches are defective.
Audi ABS light may come ON if there is a problem with the Electronic Differential Lock (EDL).
What Does it Mean When Audi ABS and Brake Light Stay On?
The problem could be life-threatening if both the ABS and BRAKE lights stay on. The brakes may not function properly.
Immediate attention is required if ABS and BRAKE lights are both staying on. If your BRAKE warning light flashes on your instrument cluster, do not operate the vehicle. Audi brakes may not work, or functionality can be lost while driving.
What to do when the Audi ABS light stays on?
If your Audi ABS stays on, you must check the brake fluid level first. If the brake fluid level is normal, check the sensor on the brake fluid reservoir. The level sensor on the brake fluid reservoir may have failed.
The next step is to read codes from the ABS module.
How to Diagnose and Reset Audi ABS Light
You must read the ABS module’s codes to determine why your Audi ABS light is on.
To do this, you will need an OBD2 scanner that can read ABS fault codes. The YOUCANIC Full System Scanner can read and clear fault codes through every vehicle’s control module.
- Park the Audi in a safe area.
- Locate the OBD-2 port under the dashboard.
- Plug the OBD-2 scanner into the OBD2 port of your Audi.
- Turn on the ignition. All Audi dashboard lights should turn on but do not start the engine. If your Audi has START/STOP button, press it twice without pressing on the brake pedal.
Turn on the scanner. Allow your Audi ABS Scan Tool to connect to the Engine Control Unit (ECU). This may take a few seconds.
- Select Audi from the menu. Next, select the Anti-lock Brake System menu.
- Read codes from the ABS module.
Clear codes. After you fix the problem discovered in the previous step, come back to the ABS menu and clear Audi ABS codes. 
Can Audi ABS Module Fail?
ABS Control Module Failure is a common issue on Audi vehicles. It triggers ABS light and can affect many models, including A4 and A6.
To fix this problem, replace the Control Module or rebuild your existing module. Another possible solution is to remove the ABS module from the vehicle and use an Audi Control Module Rebuilt Service on eBay company.
We hope you find this guide, “Audi ABS Light Came On,” helpful. Check these troubleshooting and repair guides for more help on your Audi vehicle.
