Lynk & Co 05 ABS Light On? Likely a Wheel Speed Sensor – Here's What to Do

If the ABS warning light on your Lynk & Co 05 stays on continuously, the system has detected a fault and has disabled itself. In most cases, the culprit is one of the four wheel speed sensors—small magnetic sensors mounted at each wheel that read the rotation speed and feed that data to the ABS control unit. On the 05, these sensors are usually separate parts, meaning you can replace just the faulty sensor rather than a whole wheel bearing or hub assembly. Still, it is worth confirming the exact part for your model year, because some trims may integrate the sensor with the hub.

Likely causes

• Faulty wheel speed sensor – The sensor itself may have an internal short, or its magnetic tip may be damaged or covered with metallic debris.
• Damaged wiring or connector – Wires leading to the sensor can chafe or break, especially near the suspension or wheel well. Corrosion in the connector is also common.
• Damaged tone ring or reluctor ring – The toothed ring on the drive shaft or hub can crack or collect rust, causing an irregular signal even if the sensor is fine.
• Intermittent connection – A loose or frayed connection might only trigger the light after hitting a bump.

What to check first

Begin by reading the diagnostic trouble codes with a compatible OBD-II scanner. The stored code will indicate which wheel circuit is affected—for example, C0031 etc. This saves you from guessing. After that, physically inspect the suspected area: look for obvious wire damage, loose connectors, or a sensor mounted unusually close to the ring. If you have a multimeter, measure the sensor's resistance and compare it with the wheels on the same axle. A reading far outside the normal range usually points to the sensor itself.

Is it safe to keep driving?

Short term, yes—your normal hydraulic brakes will still work, and you may not notice any difference in everyday braking. However, the ABS, ESC, and traction control will be off, so the wheels can lock up under hard braking or on slippery surfaces. That makes an emergency stop riskier. There is also a chance the light stays on because of a failing sensor that could affect other driver assistance systems that rely on wheel speed data. Drive gently and get the car diagnosed as soon as possible. If you are not comfortable doing the check yourself, a capable workshop will confirm the exact cause and, in most cases, replace just the individual sensor or repair the wiring—not the entire hub assembly.

This material is AI-generated and for informational purposes only — it does not replace an in-person diagnosis by a qualified mechanic.