What does P0722 mean?
This code comes from the transmission control system. The computer sees no signal from the output speed sensor.
The computer has detected an electrical fault in the sensor circuit.
Codes are a starting point. They tell you which test failed, not which part to replace. Check for other stored codes and fix those in a sensible order.
Symptoms
- Check engine light
- Harsh, late or erratic shifting
- Transmission stuck in one gear (limp mode)
- Flare between gears
Common causes
- Open or shorted wiring
- Corroded or loose connector
- Failed sensor
- Blown fuse or reference voltage issue shared with other sensors
How to diagnose P0722
- Look for other codes that share the same 5 V reference circuit.
- Inspect the connector and wiring, then check reference, ground and signal voltages.
- Replace the sensor only after the wiring tests good.
- Check fluid level and condition using the correct procedure for your transmission.
- Read codes from the transmission module itself, not just the engine computer.
How to fix it
- Correct the fluid level and service the fluid
- Repair wiring
- Replace the solenoid or valve body
- Repair or replace the transmission if worn
Estimated repair cost
Likely repairs for P0722 run from about $150 to $5,500, depending on the cause.
| Repair | Typical range (parts + labor) |
|---|---|
| Diagnostic fee (scan + testing) | $100 - $200 |
| Transmission fluid and filter service | $150 - $400 |
| Transmission solenoid / solenoid pack | $300 - $900 |
| Transmission rebuild or reman unit | $2,500 - $5,500 |
These are rough US estimates for an independent shop in 2026, based on typical parts prices and standard labor times. Dealers, big trucks, luxury brands and high-cost areas often run higher. They are not quotes. Use the repair cost estimator to adjust for your vehicle.
How serious is P0722?
High severity
Limp mode often locks the transmission in one gear. Drive gently and only as far as the shop.
P0722 FAQ
What does P0722 mean?
P0722 stands for "Output Speed Sensor Circuit No Signal". This code comes from the transmission control system.
Can I drive with a P0722 code?
Limp mode often locks the transmission in one gear. Drive gently and only as far as the shop.
How much does it cost to fix P0722?
It depends on the cause. The likely repairs for P0722 range from about $150 to $5,500 at an independent shop in the US, plus a diagnostic fee of roughly $100-$200. These are rough estimates; dealer prices and some vehicles run higher.
What is the most common cause of P0722?
The most common causes are: open or shorted wiring; corroded or loose connector; failed sensor.