What usually causes it
- A failed output speed sensor
- A damaged wire or a loose plug
- Low or dirty transmission fluid with metal bits on the sensor
- A problem inside the transmission
P0720Starts at: Get it checked this week
Transmission output speed sensor problem
This sensor reads how fast the shaft that sends power to the wheels is spinning, so the car knows when to shift. The computer found a problem with its signal.
What to watch for
- Harsh or late shifts
- The speedometer reading zero or jumping around
- Stuck in one gear
Can I keep driving?
We rate P0720 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
Quick answers about P0720
What does P0720 mean?
Transmission output speed sensor problem. This sensor reads how fast the shaft that sends power to the wheels is spinning, so the car knows when to shift. The computer found a problem with its signal.
Can I keep driving with P0720?
We rate P0720 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
What usually causes P0720?
The most common causes, in order: A failed output speed sensor; A damaged wire or a loose plug; Low or dirty transmission fluid with metal bits on the sensor; A problem inside the transmission.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.