ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

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Wheel Speed Sensor: Testing and Inspection

RESISTANCE

Using an ohmmeter, check resistance between both terminals of the anti-lock brake sensor.

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Front ..................................................................................................................................................................................................  1015-1245 ohms

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Rear ...................................................................................................................................................................................................  2187-2673 ohms
If resistance is not within range, replace the sensor.

SHORT TO GROUND

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Using an ohmmeter, check resistance between each terminal of the anti-lock brake sensor and either vehicle ground or the sensor body.

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If resistance is 10,000 ohms or less, replace the sensor.

AIR GAP - Check the air gap between the sensor and the anti-lock sensor indicator.

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Front........................................................................................................................................................................  0.50-0.95 mm (0.020-0.037 inch)

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Rear.........................................................................................................................................................................  0.60-1.60 mm (0.024-0.063 inch)
Gap is not adjustable, if not within range, check for damaged components such as damaged/worn wheel bearings.

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