Description of the P07147 fault code.
OBD2 Error Codes

P0717 No signal in the turbine (torque converter) speed sensor circuit “A”

26.05.2022 /

P0717 – OBD-II Trouble Code Technical Description

Trouble code P0717 will appear if the transmission control module (PCM) does not receive the expected signal from the transmission input shaft speed (torque converter turbine) sensor.

What does the fault code mean P0717?

Trouble code P0717 indicates that the automatic transmission control module (PCM) is not receiving the expected signal from the automatic transmission input shaft speed (torque converter turbine) sensor. This signal may be interrupted for a short time or it may be erroneous or incorrect. Either way, P0717 will appear and the Check Engine light will come on.

Fault code P0717.

Possible reasons

Some possible reasons for the P0717 trouble code:

  • Faulty input shaft speed sensor (torque converter turbine): The sensor may become damaged or fail due to wear and tear or other reasons.
  • Wiring or connections: Breaks, corrosion, or other damage in the wiring can result in insufficient contact or interruption in signal transmission from the sensor to the PCM.
  • PCM faults: Problems with the engine control module (PCM) itself, such as software glitches or damage, can cause the sensor to receive an incorrect signal.
  • Transmission problems: Certain transmission problems, such as breakdowns or malfunctions, can cause this code to appear.
  • Low level or poor quality transmission fluid: Insufficient or contaminated transmission fluid can affect the sensor's performance and result in an error.

These causes may require more careful diagnosis to determine the specific problem.

What are the symptoms of a fault code? P0717?

Symptoms for trouble code P0717 may vary depending on the specific problem and vehicle characteristics. Some of the possible symptoms may include:

  1. The Check Engine light comes on: When the P0717 code appears, the Check Engine light or similar light comes on on the dashboard.
  2. Gearshift problems: There may be problems with smooth shifting, shifting jerks, or unexpected transmission behavior.
  3. Loss of power or improper engine operation: Incorrect operation of the transmission can lead to loss of power or unstable engine operation.
  4. Slow transmission response: The transmission may be slow to respond to driver commands, which may result in a delay when shifting gears or shifting into neutral.
  5. Increased fuel consumption: Transmission malfunctions can lead to increased fuel consumption due to improper transmission of torque or reduced engine efficiency.
  6. The car can remain in one gear: In some cases, the transmission may get stuck in one gear or not shift into the correct gears.

It is important to note that symptoms may manifest differently depending on the specific model and condition of the vehicle. If you suspect transmission problems or P0717, it is recommended that you contact a qualified auto mechanic for diagnosis and repair.

How to diagnose a fault code P0717?

Diagnosing DTC P0717 will require the following approach:

  1. Checking the error code: First, the mechanic uses a diagnostic scan tool to read the P0717 trouble code from the PCM's memory. This allows you to determine what exactly caused the error to appear.
  2. Checking the transmission fluid: The level and condition of the transmission fluid is checked. Low levels or contamination may affect sensor performance.
  3. Checking wiring and connections: Check the wiring and connections between the input shaft speed sensor and the PCM for breaks, corrosion, or other damage.
  4. Checking the input shaft speed sensor: The input shaft speed sensor is checked for functionality. This may include checking the sensor's resistance, output, and physical condition.
  5. Additional tests: Depending on the results of the previous steps, additional tests may be required, such as checking the voltage on the wiring or using additional diagnostic tools.
  6. PCM check: In some cases, the PCM itself may need to be checked for failure or damage.

Once the diagnostics are completed, your auto mechanic will be able to determine the specific cause of the P0717 trouble code and recommend the necessary repair actions.

Diagnostic errors

When diagnosing DTC P0717, the following errors may occur:

  • Ignoring transmission fluid check: Not checking the transmission fluid level and condition may result in missing a potential cause of the problem due to fluid level or contamination.
  • Insufficient checking of wiring and connections: Lack of care in checking wiring and connections may lead to incorrect detection of the cause, as breaks or corrosion may be causing the problem.
  • Insufficient sensor itself: Failure to thoroughly check the input shaft speed sensor itself may result in missing a defect related to its performance.
  • Insufficient PCM check: Skipping the engine control module (PCM) test may result in the cause not being properly determined, especially if the problem is related to the PCM itself.
  • Incorrect interpretation of results: Incorrect interpretation of diagnostic results or insufficient understanding of the vehicle system can lead to erroneous conclusions and incorrect repairs.
  • Skip additional tests: Failure to perform all necessary additional tests may result in missing additional causes of the problem.

Proper diagnosis requires attention to detail and performing all necessary tests to accurately determine the cause of the problem.

How serious is the fault code? P0717?

Trouble code P0717 should be considered serious because it indicates problems with the automatic transmission input shaft speed sensor (torque converter turbine) and related systems. While some vehicles may continue to function normally with this error, others may experience serious transmission problems, including improper shifting, loss of power, or even transmission failure.

Additionally, transmission problems can lead to dangerous situations on the road, especially if the car stops responding correctly to driver commands or loses power while driving.

Therefore, it is recommended that you contact a qualified auto mechanic immediately for diagnosis and repair if you encounter a P0717 trouble code or notice any abnormal transmission symptoms. The sooner the problem is identified and corrected, the less likely there is to cause serious damage and safety on the road.

What repair will help eliminate the code? P0717?

The repair needed to resolve the P0717 trouble code will depend on the specific cause of this error code, several possible actions:

  1. Replacing or repairing the input shaft speed sensor (torque converter turbine): If the sensor is faulty, it must be replaced with a new one or repaired to restore proper operation.
  2. Repair or replacement of wiring and connections: If any breaks, corrosion, or other damage to the wiring is found, it should be repaired or replaced to ensure reliable signal transmission from the sensor to the PCM.
  3. PCM repair or replacement: In rare cases, problems may be related to the engine control module (PCM) itself. In this case, it may need to be repaired or replaced.
  4. Additional repairs: Depending on the diagnostic results, additional repairs may be required, such as transmission fluid changes, transmission repairs, or other diagnostic and repair procedures.

It is important that repairs are performed by a qualified auto mechanic using the correct tools and parts. After the repair work is completed, a test run and inspection should be performed to ensure that the problem has been completely resolved and the P0717 fault code no longer appears.

Trouble Code P0717

P0717 – Brand-specific information

Trouble code P0717 relates to the transmission system and can be found in various brands of cars, a list of some brands of cars with interpretations:

Each manufacturer may have slight differences in how they interpret fault codes, so it is also important to consider the specifications and repair manuals for your specific model and year of vehicle.

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