Volvo XC60 II ABS Light On? What a Mechanic Would Check First

Why Your ABS Light Is Staring at You

First, take a breath. A steady ABS light on your Volvo XC60 II doesn't mean your brakes are about to fail. It means the anti-lock braking system has been disabled by the control module, usually because it's getting a signal it doesn't trust. The most common culprit on this generation is a wheel speed sensor or the wiring that feeds it. Each wheel has a sensor that tells the ABS module how fast that wheel is spinning. If one drops out, the whole system goes offline and the light stays on. Other possibilities include a damaged tone ring (reluctor ring) on the axle, corroded connectors, or—less often—a fault inside the ABS control module itself.

What to Check First (In Order)

• Scan for ABS codes: A proper Volvo-compatible scanner (or VIDA) will tell you which wheel is misbehaving. Codes like wheel speed sensor signal missing point you straight to the corner.
• Inspect the sensor and wiring: Look for chafed wires near the hub, cracked insulation, or corrosion in the connector. On the XC60 II, rear sensor harnesses can rub against suspension components.
• Test the sensor: A multimeter can check resistance (typically around 1,000–2,000 ohms, but verify for your model). Also check for AC voltage while spinning the wheel by hand.
• Check the tone ring: Rust, cracks, or missing teeth on the reluctor ring will confuse the sensor. This is a common wear item in salty climates.
• Battery and grounds: Low voltage or a bad ground can trigger phantom ABS lights. Make sure the battery is healthy and terminals are clean.

Can You Keep Driving?

If only the ABS light is on and your brakes feel normal, you can usually drive carefully to a shop. But remember: you have no anti-lock braking, no traction control, and no stability control. In an emergency stop, the wheels can lock and you lose steering control. Avoid wet, icy, or gravel roads. If the brake warning light also comes on, or the pedal feels spongy or pulses, stop driving immediately and have it towed. A steady ABS light is an inconvenience; a brake warning light is a safety issue. When in doubt, get it scanned—it's cheaper than guessing.

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