Left Rear Wheel Speed Sensor B Correlation

Where it lives

For C0664, the part to look at first is the sensor named here.

Check these first

• A left rear wheel speed sensor B reading a different speed than the others
• A mismatched left rear wheel speed sensor B or tone ring
• A tire size or pressure mismatch on the left rear wheel
• A damaged left rear wheel speed B tone ring
• An ABS module that cannot correlate left rear wheel speed B

What to do next

1. Read all four wheel speed sensors with a scan tool during a road test
2. Check left rear tire size and pressure against the other wheels
3. Inspect the left rear wheel speed B tone ring for damage
4. Check the left rear wheel speed sensor B for the correct part
5. Replace the mismatched left rear wheel speed sensor B or tone ring
6. Clear the code and retest

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