Join Date: Jan 2014
Location: South Central PA
It's electronic, so it can fail.
With that said, issues with the wiring and wheel bearings are more common than failed sensors.
And the service procedure is to replace the bearing and sensor as a set. But I think that's about there being no sure way to determine which is at fault.
If you VOM is sensitive enough, or has a Hz setting, you can just connect to the sensor and see if it generates a signal when the wheel turns. If it does, then you'll need to check the circuit/harness
I've only ever seen one bad wheel sensor, and it had a brand new tire on it. Who ever changed the tire probably let it bounce off the floor. But I have seen a few dead wheel bearings set that code.
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