Whats this abs light?

[Niall]

My old car did this when a sensor died. Pretty easy to work out which one as a wheel would lock up under braking :/

To find a faulty sensor:

-Take a sensor out of the wheel hub (We all know they don't come out in one piece so leave in place for now)

-Put a multimeter across the terminals in the plug (On vAC and if your meter isn't auto ranging, below 20v)

-Wave a magnet (magnetic screwdriver will be fine) across the tip of the sensor (seeing as your sensor is still in the hub, just spin the disc)

-You should get readings. If not, the sensor is dead. (voltage may also increase the faster you spin the disc. Depending on how good your meter is, you will see the voltage drop as it passes over the gaps in the rings)

Added a few bits