How do you fix a speed sensor circuit malfunction?

What repairs can fix the P0720 code?

  1. Replacement of the output speed sensor.
  2. Replacement of the input speed sensor.
  3. Replacement of the wires or connectors.
  4. Drain and refill of the transmission fluid.
  5. Replacement of the PCM.

Where is the turbine speed sensor located?

Located on or inside your vehicle’s transmission, the turbine speed sensor measures the RPM of the turbine shaft. Once the PCM or TCM detects an irregularity in the turbine speed input, it will trigger the illumination of the Check Engine Light.

How do I fix error code P0715?

What Repairs Will Fix P0715?

  1. Repair or replace the input speed sensor.
  2. Repair or replace damaged wiring.
  3. Repair or replace damaged wiring connectors.
  4. Reprogram ECU/TCM.

What does the turbine speed sensor do?

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.

What causes a speed sensor to malfunction?

Poor vehicle maintenance Failing to follow your vehicle maintenance schedule can increase the risk of speed sensor failure. This device will not be able to produce correct readings if the magnetic pickup and/or toothed wheel become heavily covered in gunk, particularly old transmission fluid contaminants.

What is the difference between input and output speed sensor?

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.

Can I drive my car with a faulty 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 test a turbine speed sensor?

Disconnect the sensor from the housing on the transmission, as indicated in the repair manual for your car. Disconnect the sensor’s wire coupling. Using the multimeter’s voltmeter connect the probes to the ground and reference wires in the connector. If no voltage is received, the sensor is faulty.

How do you test an input speed sensor?

You can test your VSS to make sure it’s functioning properly by using a device called a multimeter. Start by disconnecting and removing the VSS from your engine so you can test it. You can then connect it to a multimeter and set the multimeter to the AC setting.

Can you drive with a broken speed sensor?

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.

Does the speed sensor affect the transmission?

Therefore, a failing speed sensor will have a direct impact on automatic transmission operation. One of the most common signs of a bad speed sensor is abnormal automatic transmission operation. If the VSS is faulty, the transmission may exhibit symptoms such as delayed shifts, hard shifts, and limited gear operation.

Can you drive without speed sensor?

While it’s technically possible to operate your vehicle without a properly functioning vehicle speed sensor, it is strongly discouraged. A faulty VSS can negatively impact multiple aspects of vehicle operation—which is why it’s best to replace a bad speed sensor as soon as possible.

What causes p0715 Mercedes-Benz transmission speed sensor to malfunction?

P0715 MERCEDES-BENZ Possible Causes 1 Faulty Transmission Speed Sensor 2 Transmission Speed Sensor harness is open or shorted 3 Transmission Speed Sensor circuit poor electrical connection More

What causes a p0715 OBD-II to malfunction?

A P0715 usually has one main cause and other secondary issues that are less common. These include: Faulty transmission speed sensor. Faulty or damaged speed sensor wiring. Faulty speed sensor electrical connection. Faulty shift solenoids. Damaged transmission valve body.

What does the DTC code p0715 stand for?

What Does the P0715 Code Mean? Diagnostic Trouble Code (DTC) P0715 stands for Input/Turbine Speed Sensor “A” Circuit. To put it simply, this code is triggered when your vehicle’s PCM detects an irregularity in the signal sent by the input speed sensor in the transmission.

What is the error code for a Mercedes 5 speed transmission?

Here is a list of Mercedes 5-speed and 7-speed automatic transmission related error codes. P0720 – Output Speed Sensor Circuit Malfunction. P0715 – Input/Turbine Speed Sensor Circuit Malfunction (Transmission Conductor Plate or 13-pin connector issue)