Hi,
The P0500 indicates an error in the circuit. If you are getting no signal from one of the wheel speed sensors, that is what's setting the code. Although you found one sensor bad, it wouldn't hurt to check the others. There is also an input/output speed sensor in the transmission, but I don't think that's the problem at this point because you found a bad sensor.
I'm not sure how you are testing, but here is a link that explains how it's done using a voltmeter or multimeter.
https://www.2carpros.com/articles/abs-wheel-speed-sensor-test
Here is a link explaining how in general one is replaced:
https://www.2carpros.com/articles/how-to-replace-an-abs-wheel-speed-sensor
If you look at the attachments below, they are the directions specific to your vehicle for replacement. Hint: When removing the old one, remove the retaining bolt, take a wire brush and clean around where it goes into the hub, and gently wiggle it to remove. You don't want it to break.
Let me know if this helps or if you have other questions.
Take care,
Joe
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Thursday, August 26th, 2021 AT 8:08 PM