ABS Light On? Changan CS35 Plus Wheel Speed Sensor Guide

What a steady ABS light means

On your Changan CS35 Plus, an ABS light that stays on continuously is the module telling you it has logged a fault and switched off anti-lock braking. Your normal brakes should still work, but you lose ABS assistance in a panic stop. The most common culprit is a wheel speed sensor, its wiring, or the tone ring it reads—but low battery voltage, a dirty connector, bearing play, or an ABS module fault can also set it.

Check these first

Start with a scan tool that can read ABS codes and live wheel-speed data. Compare all four wheel speeds while driving slowly; a sensor dropping out or reading erratically points you to that corner. Then inspect each sensor’s connector and harness for corrosion, chafing, or a broken clip, and look at the tone ring for dirt, rust, cracks, or missing teeth. Don’t forget tyre pressures and wheel bearing play—both can confuse the system.

• Scan first: record the exact ABS code before replacing anything.
• Live data: a wheel speed that drops to zero or jumps is a strong clue.
• Visual check: sensor wiring, connector pins, tone ring condition, and bearing play.
• Battery/voltage: a weak battery can trigger false ABS faults on modern cars.

Is it safe to keep driving?

If the ABS light is the only warning, the brake pedal feels normal, and the car stops straight, you can usually drive carefully to a workshop—but treat it as a repair priority and avoid hard braking or wet, slippery roads. Stop driving and get it checked immediately if the red brake warning light is also on, the pedal feels soft or long, the car pulls under braking, or you see multiple warning lights. Replacing a faulty wheel speed sensor is often straightforward, but proper diagnosis prevents throwing parts at the car.

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