Clutch Master cylinders

Each wheel of a vehicle fitted with an Automatic Braking System has an ABS sensor. These sensors pick up signals from the corresponding ABS ring to determine wheel speed, and this information is then sent to the ABS controller which applies corrective pressure to the brakes via the hydraulic unit. Doing this maximises performance & safety. ABS sensors are a common fault because of the detrimental factors such as dirt, heat, moisture & vibration due to their location near the wheel. If a fault develops in any part of the ABS, a warning light will usually be illuminated on the vehicle instrument panel, and the ABS will be disabled until the fault is rectified.