Haval M6 ABS Light Stays On: Check Wheel Speed Sensors First

What a steady ABS light means on your Haval M6

When the ABS warning light stays on continuously, the ABS control module has detected a fault and disabled the anti-lock function. Your normal brakes should still stop the car, but you lose ABS assistance during hard braking or slippery conditions. If the red brake warning light is also on, the pedal feels strange, or the car pulls while braking, treat it as urgent and stop driving until it is checked.

Most likely causes and what to check first

A wheel speed sensor fault is the most common reason for a steady ABS light on a Haval M6, but the sensor itself is not always the failed part. Work through the system in this order:

• Scan the ABS module for fault codes. This tells you which wheel the module has lost a signal from and prevents guesswork.
• Check live wheel speed data. A good scanner should show all four wheels matching at low speed. A dropout or erratic reading points to that corner.
• Inspect the sensor, connector, and wiring. Look for corrosion, chafed wires, a loose plug, or a sensor not seated correctly.
• Clean and inspect the tone ring or encoder ring. Dirt, rust, cracks, or a damaged ring can mimic a failed sensor. On some models the ring is part of the wheel bearing.
• Check brake fluid level, battery voltage, and ABS fuses. Low voltage or a simple supply issue can also trigger the light.

If the code points to one wheel, swap or carefully test that sensor and inspect its ring before condemning the ABS module. The module is a much less common cause and should only be suspected after the sensors, wiring, and rings are proven good.

Can you keep driving with the ABS light on?

If only the amber ABS light is on and the brakes feel normal, a short, gentle trip to a garage is usually acceptable. Avoid hard braking, wet roads, gravel, and emergency stops, because the wheels can lock. Do not ignore the light long-term: ABS is a safety system, and a small sensor fault is far cheaper to fix now than a module or wiring repair later.

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