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wheel speed sensor testing
Got a question on wheel speed sensor testing. I found some DIY's mostly for older cars that call for doing a diode test on the ABS wheel speed sensors. The expected voltage/reading should be about 1.5/6 volts one way and 'open' the other way when switching around the meter leads. I have checked all 4 sensors at the DSC plug and 1 sensor at the wheel. Using an old & basic multimeter I get a reading of 0.6 all around and open the other way.
Does anyone know if this is the normal reading on an E90?
In INPA all 4 sensors report correct and equal values. Car does not have any ABS issues, sensor codes or speedometer problems, but the sensors are scratched up and the reluctor rings look a bit cruddy.
Just want to rule out the sensors as a possible culprit.
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