Vehicle Speed Sensor A/B Correlation

Where it lives

For P2162, the description names the sensor as the part involved.

Check these first

• A mismatch between the speed sensor A and B signals
• A failed vehicle speed sensor A or B
• Corrosion in the speed sensor circuits
• A transmission or rear axle fault skewing a speed signal
• An ECM or TCM fault

What to do next

1. Read the speed sensor A and B signals on a scan tool
2. Compare the two signals through a test drive
3. Check the sensor A and B wiring for corrosion
4. Inspect the transmission or rear axle for a fault
5. Replace the faulty speed sensor if the signals do not match
6. Clear the code and retest

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