ABS Light Stays On in a Lynk & Co 01? Here’s What to Check (and Whether It’s Safe to Drive)

Why the ABS Light Won’t Go Out

When the ABS light stays on continuously in your Lynk & Co 01, the system has detected a fault and disabled itself as a safety measure. In most cases, the culprit is a wheel speed sensor — a small magnetic or hall-effect sensor mounted at each wheel hub. These sensors tell the ABS module how fast each wheel is turning. When one sensor fails, sends an erratic signal, or stops sending a signal entirely, the ABS light will remain lit.

It’s also worth remembering that a dirty or damaged sensor ring (the toothed or magnetic ring that the sensor reads) can trigger the same fault. Sometimes the issue is simply a loose connector, a corroded wiring harness, or a blown fuse. On many Lynk & Co 01 models, the wheel speed sensor is a separate serviceable part from the hub bearing assembly, so you usually don’t need to replace the whole hub — but you’ll want to confirm that for your specific year and trim before ordering parts.

Which Sensors to Check First

Start by reading the diagnostic trouble codes with an OBD-II scanner or a good multi-brand diagnostic tool. The code will usually indicate which wheel is causing the problem, e.g. "Left Front Wheel Speed Sensor Circuit" or "Rear Right Sensor Intermittent." If you don’t have access to a scanner, you can inspect all four sensors visually, but the front ones are a common starting point because they see more road spray and debris.

• Check the connectors and wiring — Look for corrosion, bent pins, chafed wires, or signs of moisture near each sensor plug. A simple clean and re-seat often fixes intermittent faults.
• Inspect the sensor tip — The sensor is mounted close to the wheel bearing or the back of the brake disc. A metal filing stuck to the magnet can cause a false signal, so remove the sensor (one bolt usually) and clean the tip gently.
• Examine the reluctor ring / magnetic ring — If the ring is damaged, missing teeth, or heavily corroded, the sensor can’t produce a clean speed signal. On some models this ring is part of the driveshaft or hub; on others it’s a separate small ring.
• Measure the sensor — With a multimeter, you can check for the sensor’s specified resistance and, if applicable, AC voltage output while spinning the wheel. Compare readings across all four sensors to spot the odd one.

If cleaning and re-seating doesn’t help, the sensor itself is a fairly inexpensive part on most Lynk & Co 01 vehicles, and replacing just the sensor is usually sufficient. Only in cases where the sensor cannot be extracted easily, or where the hub bearing has also failed, would you consider replacing the entire hub assembly — but that’s a fallback, not the first step.

Is It Safe to Keep Driving?

You can still drive the car with the ABS light on, but you need to understand the trade-off: the ABS, electronic stability control, and sometimes hill-hold or traction control will be disabled. Your normal brakes still work, but in an emergency stop or on a slippery surface, the wheels can lock up, which could make the car less stable. On most 01 models, the speedometer will still work even with a wheel speed sensor fault (it may use another wheel or a separate signal), but in some cases you might also see the traction control warning light.

My advice: if the car feels normal and you’re driving to a workshop or parts store, that’s generally acceptable — just leave extra following distance and avoid hard braking. If the fault also triggers an illuminated check-engine light, or the car behaves oddly (e.g. rough shifting, cruise control unavailable), have it checked sooner rather than later. A wheel speed sensor that fails completely can also affect other systems like the tyre-pressure monitor or adaptive cruise control, so it’s best to sort it out promptly — but it’s not a sudden breakdown risk in most driving conditions.

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