P1722
Estimated Vehicle Speed Signal
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Incorrect speedometer readings
- Gear shifting problems
- Cruise control doesn't work
- Check Engine light comes on
- Unstable engine idling
Causes
- Speed sensor malfunction
- Wiring harness damage
- Problems with sensor connectors
- Engine control unit (ECU) malfunction
- Mechanical damage to sensor drives
How to Fix
- Check the speed sensor and its connections
- Inspect the wiring harness for damage
- Check sensor connectors for corrosion or oxidation
- Test the ECU for errors
- Replace faulty speed sensor