A turbine speed sensor, also termed an input speed sensor, is used for measuring the performance of the turbine by evaluating transmission performance and other components of the turbine. It also detects the rotation speed of the turbine, which shows the input revolution of the transaxle.
That is why in general, it is unsafe to drive a vehicle with a broken wheel speed sensor. If the wheel speed sensor becomes damaged or wears out, initially you probably won't notice much difference in the way your car performs if your ABS light comes on unless you are driving on slippery pavement.
Here are the symptoms of a bad or failing transmission speed sensor
- Harsh or improper shifting. Without a valid speed signal from these sensors, the PCM will not be able to correctly control the shifting of gears within the transmission.
- Cruise control does not work.
- Check Engine Light comes on.
To replace the speed sensor, you are going to pay, on average, between $330 and $380. The labor should only cost you between $80 and $100, while parts will run you about $265.
Vehicle Speed Sensor Testing Turn the ignition switch to the OFF position. Disengage the wiring harness connector from the VSS. Using a Digital Volt-Ohmmeter (DVOM), measure the resistance (ohmmeter function) between the sensor terminals. If the resistance is 190–250 ohms, the sensor is okay.
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.
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.
What repairs can fix the P0715 code? The most common repairs for a P0715 are as follows: Replacing the input speed sensor. Repairing damaged wiring for the input speed sensor.
What repairs can fix the P0500 code?
- Vehicle speed sensor drive gear replaced.
- Repair or replacement of the wiring harness.
- Vehicle speed sensor replaced.
- Poor electrical connection resolved.
P0717 code definitionThe PCM (powertrain control module) will set the P0717 code when it detects no signal from the input/turbine speed sensor. This signal may be interrupted briefly, or it may be erratic or otherwise outside of expected manufacturer settings.
engine speed input circuit
If you noticed, I've used the words, transmission speed sensor and vehicle speed sensor so far. The only difference between the two is what the manufacturer decides to call it. In either case, the faster the transmission output shaft moves, the more voltage the sensor produces.
Over time, the transmission speed sensor can go bad due to wiring issues or just outright failing due to it constantly being used every time you are driving your vehicle. If the sensor is magnetic, it can go bad from iron sticking to the tip of the sensor, which will cause an inaccurate reading.
So, can ABS sensor cause transmission problems? Yes, it can. ABS can cause trans shifting problems. We would advise that you always pay attention to the signals that appear on your car's dashboard.
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.
The sensor is also a component of the pressure control system for the automatic transmission. If failure of this sensor takes place, then the transmission may produce both soft as well as hard shifting or soft shifting. Drivers may also see transmission fault code.
Transmission input/output sensors calculate the transmission's actual gear ratio during usage. The first sensor, referred to as the input sensor, monitors the speed of the transmission's input shaft. The second sensor is the output sensor, which monitors the output shaft speed.
The only way a Vss can cause a no-start is if it is shorting the orange wire and pulling down the power to the Crank and cam sensors. The VSS cannot cause a no-crank.
How does the speed sensor work? The vehicle speed sensor measures the rotational speed of the gears in your transmission system. Then, it converts this measurement into an analog signal or a low voltage square wave signal and relays it to electronic control units (ECUs) inside your car.
