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Old 04-19-2017, 07:50 AM
Henry Henry is offline

Join Date: Nov 2015
Location: Pittsburgh, Pa
Posts: 76
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Bad ABS Module?

I have a 2003 300a I've been chasing as abs light on. The code is for the right rear speed sensor circuit fault. After a lot of searching and investigating with a multimeter and have discovered that the abs module is not putting out the necessary 5 volts to the sensor to the right rear sensor (checked at the abs module plug). Has anybody else experienced something similar? I have a complete abs unit off another 300a on the shelf, just making sure that there isn't some other possible solution before i take the time to switch the pump out and bleed the brakes with the scan tool.
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