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If there is missing insulation on any wire and it's touching metal, it could be shorted to ground. The "sensor" is just a bare loop of wire. If it is touching any metal, it is shorted to ground and will trip the brake wear light.
The circuit is one big loop that starts and ends at the instrument cluster. Positive voltage is fed to one wire and returns on the other. Any break or short in that loop will trip the light. The base plate for the pads is metal, so if the sensor hole in the pad is not placed correctly, the bare wire of the loop in the sensor could possibly make ground contact there. I only mention it because one of my 8 new pads did have a misplaced hole that could have allowed a sensor wire to touch the base plate.
My point was that you should keep an eye out for any cracked or missing insulation where a bare wire could touch metal.
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Last edited by particlewave; 08-31-2015 at 11:09 AM.
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1997 Porsche Boxster
Hybrid Mode
