E46Fanatics - View Single Post - Brake Pad Wear Sensor ??
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Old 08-25-2012, 03:17 PM   #6
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Join Date: May 2012
Location: Avon Park, Florida
Posts: 295
My Ride: 2002 BMW 325i

Correct. Sensor grounds out when touching rotor, completing circuit. Broken wire, no way for sensor to complete circuit.
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