ABS Light Stuck On? Renault Logan II Wheel Speed Sensor Guide

What a steady ABS light means on your Logan II

When the ABS light stays on continuously, the ABS control module has stored a fault and has disabled the anti-lock function. On a Renault Logan II, the most common culprit is a wheel speed sensor or its wiring, but it can also be a damaged reluctor ring, a corroded connector, or, less often, the ABS pump/module itself. The car’s normal brakes still work, but you lose the anti-lock safety net.

What to check first

Start with a proper scan tool that can read ABS codes, not just engine codes. That will tell you which wheel the module is unhappy with. Then inspect that corner:

• Wheel speed sensor and connector: look for a cracked sensor, chafed wiring near the suspension, or green corrosion in the plug.
• Reluctor ring or magnetic encoder: on many Logan II models this is built into the wheel bearing or hub; dirt, rust, and cracks can make the signal dropout.
• Sensor gap and mounting: a loose sensor or debris on the tip can cause a continuous fault.
• Wiring continuity: flex the harness while watching live wheel-speed data if your scan tool supports it.

Is it safe to keep driving?

If only the amber ABS light is on and the pedal feels normal, you can usually drive carefully to a garage, but remember the anti-lock system is offline. Avoid hard braking on wet, gravelly, or icy roads, because the wheels can lock. If the red brake warning light is also on, the pedal feels spongy, or the car pulls under braking, stop driving and get it checked immediately.

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