P0722 code definition A P0722 code is stored when the PCM gets an incorrect or irrational input signal from the transmission’s output speed sensor. With an incorrect, intermittent, or inaccurate signal, the transmission has no accurate information about speed, and it cannot create an appropriate shifting strategy.
What does P0722 mean?
Output Speed Sensor No Signal
OBD-II Code P0722 is defined as a Output Speed Sensor No Signal. When the code P0722 is set in the Powertrain Computer, it means that the Powertrain Computer or PCM is not seeing a consistent speed signal from the Transmission’s Output Speed Sensor.
Where is the output speed sensor located?
Locate the speed sensor. The sensor is found on the bottom of the transmission and can be identified as a small plug that is sticking straight out of the transmission with an electrical connector plugged into it.
What is output shaft speed sensor?
The vehicle speed sensor (VSS) is also commonly referred to as a transmission speed sensor or output shaft speed sensor. It is a small device—typically mounted somewhere on the transmission—that determines how fast your vehicle is going by measuring the rotation of a toothed wheel on a shaft inside the transmission.
How do I fix code po720?
What repairs can fix the P0720 code?
- Replacement of the output speed sensor.
- Replacement of the input speed sensor.
- Replacement of the wires or connectors.
- Drain and refill of the transmission fluid.
- Replacement of the PCM.
How do I fix code P0722?
What repairs can fix the P0722 code?
- Repairing or replacing a damaged or faulty transmission output speed sensor.
- Repairing or replacing a damaged or faulty engine coolant temperature sensor.
- Repairing or replacing a damaged or faulty shift solenoid.
- Flushing the system and changing the transmission fluid.
What can cause a P0720 code?
Common Problems That Trigger the P0720 Code
- Defective Output Speed Sensor.
- Defective Shift Solenoids.
- Defective Engine Coolant Temperature Sensor.
- Defective Valve Body.
- Dirty transmission fluid that restricts the hydraulic passages.
- Defective Output Speed Sensor wiring or connector.
Will a speed sensor cause shifting problems?
Without a valid speed signal from these sensors, the PCM will not be able to correctly control the shifting of gears within the transmission. This may cause the transmission to shift roughly or more quickly than normal.
Can you drive without a speed sensor?
Can you drive with a bad speed sensor? In general, it is unsafe to drive a vehicle with a broken wheel speed sensor. The car’s computer will not be able to determine the speed that your vehicle is traveling, so it might apply the brakes at a faster rate than necessary or increase the engine power.
How do you fix a transmission speed sensor?
Replacing Your Transmission Speed Sensors
- Having found the sensor or sensors to be faulty, remove the connector between the sensor and the vehicle’s wiring.
- Using the proper socket, remove the faulty sensor.
- Connect the new sensor to the vehicle’s wiring.
- Install the new sensor.
- Lower your car.
- Start the engine.
How can you tell if the transmission sensor is bad?
Top Signs of a Failing Transmission Position Sensor
- Car fails to move out of park. When your vehicle is unable to shift out of neutral or park, this is a clear indication that there is a serious problem somewhere in the transition system. …
- Transmission shifts into the wrong gear. …
- Vehicle becomes locked in a single gear.
How do you know if your transmission speed sensor is bad?
Improper Or Harsh Shifting
When there’s no speed signal coming from the sensors, shifting of gears will be a problem because the powertrain control module won’t control them correctly. This will make the transmission not work properly. It will either shift more quickly or roughly than expected.