Originally Posted by TerminatorX5
(Post 965429)
for this particular test you don't need to have ignition key to be on -
the Hall effect sensors, the diodes inside those sensors, are passive components, "interrogated" by the "active ABS module... when a connector disconnected from the ABS module, you can't have the voltage generated by the ABS module to be passed onto the hall effect sensor, therefore, for this particular test, we only test to see if the diodes are operating as designed...
the result of this test can be that the all 4 sensors give us good readings, then i would see if the sensor housings are dirty or otherwise compromised...
the result could be, that one sensor is not reporting to the ABS... then i would pull a wheel and test the sensor right at the wheel... at this point, the sensor still can be dead (replace the sensor with a good quality one), or, the sensor can be good but the line from the sensor to the module is compromized... in this case, test the line, to verify that the line is bad...
if, after all the tests, it seems that the sensors and the lines are good, thelast thing left is the module itself... then send it off for repairs... while you can drive the car without the module, try to limit your driving, if possible...
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