Question about 2000 Alfa Romeo 156

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Abs light and and handbreak light on

Abs light and and break light on, i hear it may be a problem with the abs sensor unit. any help? mechanics are lost

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As far as being able to test the wheel speed sensors, they can disconnect the end so that they still have the sensor at the wheel hooked up. Act like they are going to change it and see where it connects. Once you have the connector in your hand and the sensor is still atatched at the wheel, have someone spin the wheel and with a voltmeter, see if you are getting an AC voltage reading(yes AC not DC). If any sensor does read AC voltage, replace that sensor. Let me know what you find.

Posted on Jul 29, 2010


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