Lynk & Co 02 ABS Light Stays On? Start With the Wheel Speed Sensors

Why the ABS Light Stays On

When the ABS warning light on your Lynk & Co 02 stays on after startup, the system has detected a fault and disabled itself. In most cases, this is a wheel speed sensor issue, but it can also be caused by a damaged sensor ring, corroded wiring, low brake fluid, or—less often—the ABS control module itself. The good news is that on most Lynk & Co 02 models, each wheel speed sensor is a separate part, so you don't necessarily need to replace an entire hub or assembly unless the sensor is integrated on your specific year and trim. Confirm the exact part and procedure for your vehicle before ordering anything.

What to Check First

• Retrieve the fault code: A simple OBD-II scanner that reads ABS codes will tell you which wheel sensor is reporting a problem. Codes like C0035, C0040, C0045, or C0050 point to front or rear sensors, but always note the specific code for your car.
• Inspect the connector and wiring: Corrosion, bent pins, or a chafed wire near the suspension or wheel well are common after road salt or debris. Unplug the sensor and look for green corrosion or moisture.
• Measure the sensor resistance: With the ignition off, use a multimeter to check the sensor's resistance. Typical values are between 1,000 and 2,500 ohms, but check your workshop manual because it varies by brand and generation. An open circuit (OL) or a very low resistance means the sensor is faulty.
• Check the toothed ring (tone ring): A cracked, missing, or loosely fitted tone ring can also trigger the ABS light. Look for damage through the opening where the sensor mounts.

Is It Safe to Keep Driving?

With the ABS light on, your normal hydraulic brakes still work, so you can still stop the car. However, the anti-lock function is disabled, meaning the wheels can lock up under hard braking—especially on wet or icy roads. If the brake warning light is also on, or the pedal feels soft or low, stop driving and have the vehicle towed, because that points to a hydraulic or brake fluid problem, not just a sensor fault. For everyday dry-road driving, you can usually continue carefully to a repair shop or your home, but avoid heavy braking and high speeds. The sooner you diagnose it, the cheaper the fix usually is—most wheel speed sensors are reasonably priced, and replacing one is a straightforward job for a competent DIYer or a professional.

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