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Is this wheel sensor a 2-wire assembly? If so, I believe it is a simple reluctor assembly and easily checked with a multimeter for continuity/resistance.

You indicate that you swapped left & right "pickup wire"... I'm not sure what item you are referring to... have you tried swapping the sensors?

The sensor and pigtail wire are a 1-piece assembly, pn 4515400217.

Here are some pictures for reference:


Is it possible that the new bearing is a metal shielded type, effectively blocking the sensor from detecting the balls?

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