ABS Light On? What It Means and What to Check – A Quick UK Guide

ABS Light On? What It Means and What to Check – A Quick UK Guide

If your ABS warning light has come on, it’s a sign that your car’s Anti-lock Braking System isn’t working as it should. While your normal brakes will still operate, the ABS system – which helps prevent wheel lock-up during hard braking – may be disabled. It’s important to get the fault checked as soon as possible for safety and MOT compliance.

What the ABS Light Means

When the ABS light illuminates on the dashboard, it usually indicates:

• A sensor fault

• A wiring or connector issue

• A problem with the ABS pump or control module

It won’t usually affect everyday driving, but it will affect braking performance in an emergency.

Basic Steps to Diagnose an ABS Light

Here’s a simple overview of what technicians typically check:

1. Scan for ABS Fault Codes

A diagnostic tool is used to read stored ABS fault codes. This identifies whether the issue is sensor-related, electrical, or module-based.

2. Visual Check of Wheel Speed Sensors

Sensors at each wheel can become dirty, damaged or disconnected. A quick inspection often highlights obvious issues.

3. Check ABS Fuses and Connections

ABS relies on several fuses and electrical connections. If a fuse has blown or a connector has corroded, the system may shut down.

4. Assess the ABS Module or Pump

If sensors and wiring appear fine, the ABS control module or hydraulic pump may be at fault. These parts are common failure points on many UK vehicles.

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When to Get Help

If your ABS light is on constantly, comes on intermittently, or appears alongside the traction control light, it’s best to have the system tested professionally. Many ABS issues relate to the electronic control module, which can often be repaired rather than replaced.

We provide ABS module testing, diagnosis and repair services for a wide range of UK vehicles, offering a cost-effective alternative to main dealer replacement.