Testing ABS Sensors

Question

I have discovered that a sensor may read 1200 ohms as spected at say room temperature but measured open ( infinite ) at something less than room temp.
I took all four of my sensors out and put them in my refrigerator for an hour. Three of the four measured open. Replaced them and no problems since.

theoldwizard1 · Answer

Some wheel speed sensors have a piece of metal exposed to the elements. Because they are magnetic, they grab all metal shavings and will rust. Once they get a lot of rust they will cause problems with your ABS.

Most sensors are easy to replace, although some are built into the bearing of FWD vehicles.

1492 · Answer

burbman · Answer

Interesting, what is the vehicle?  I know tne sensors are built into the hubs on GM vehicles ( not just FWD).

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Testing ABS Sensors

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