P0720Medium urgency
Output Speed Sensor Circuit Malfunction
Transmission · Speed Sensors
⚠️ Fix soon — speedometer and shift points affected.
What this means
The transmission output shaft speed sensor has failed.
Likely causes
- Failed output speed sensorMost common
- Wiring harness damageCommon
- Damaged reluctor ringCommon
Estimated repair cost
Output speed sensor replacement$100 – $350
Wiring repair$75 – $250
🏪
Sponsored · Local Shop
Find shops near you specializing in this repair
Get quotes from certified mechanics · Free estimates
📦
Sponsored · Parts (Amazon affiliate)
Shop parts commonly used for this repair
Amazon search results for this code · prices and availability vary
Sponsored: MyOBDCode may earn compensation when you click partner links on this page.
Frequently asked questions about P0720
What does P0720 mean?
The transmission output shaft speed sensor has failed.
Is P0720 serious?
Fix soon — speedometer and shift points affected.
How much does it cost to fix P0720?
Repair costs for P0720 range from $100 – $350 depending on the root cause and your vehicle.
Can I drive with P0720?
You can drive short distances but should have it repaired within 1–2 weeks to prevent further damage.