ABS Light On? Changan Uni-V Wheel Speed Sensor Fix

What a Constant ABS Light Usually Means

If your Changan Uni-V's ABS warning light stays on all the time, the ABS module has logged a fault and disabled the anti-lock function. The most common culprit is a wheel speed sensor or its wiring, but it can also be a dirty sensor tip, a cracked tone ring, bearing play, or a damaged connector. Before replacing parts, have the ABS module scanned with a proper diagnostic tool that can read chassis codes — this will tell you which wheel the module has lost signal from.

What to Check First

Start with the code, then inspect the affected corner. A good technician will check:

• Wheel speed sensor signal on a live data scan — compare all four wheels while rolling slowly.
• Sensor head and tone ring for metal debris, cracks, rust, or a loose mounting bolt.
• Wiring harness and connector at the wheel for corrosion, chafing, or a broken pin — very common after suspension or brake work.
• Wheel bearing play, because a worn bearing can make the sensor air gap inconsistent.

On the Uni-V, don't overlook recent tyre, brake, or suspension repairs — a disturbed sensor connector or damaged harness is often the real cause. Clear the code and test-drive only after the repair so you know the light stays off.

Is It Safe to Keep Driving?

With a steady ABS light and normal-feeling brakes, the car is generally driveable — but ABS is disabled, so you won't have anti-lock assistance in a panic stop or on wet, loose, or slippery surfaces. Drive gently, increase following distance, and get it diagnosed soon. If the red brake warning light is also on, the pedal feels soft or pulsates strangely, or you hear grinding, stop driving and have the vehicle inspected immediately.

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