Vehicle Speed Sensor A Circuit Range/Performance

Where it lives

For P0501, start at the sensor the description names.

Check these first

• A failed vehicle speed sensor A
• A damaged or corroded VSS A wire
• An incorrect tire size or VSS calibration
• A faulty ABS module feeding speed data

What to do next

1. Compare VSS speed to GPS or a known good on a scan tool
2. Inspect the VSS A wiring and connector
3. Check the ABS module for speed sensor codes
4. Replace the VSS A if the signal reads wrong
5. Clear the code and retest

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