WOMS
P code powertrain Medium severity

P1715 SSB Inductive Signature Malfunction

The OBD2 code P1715 indicates a malfunction in the inductive signature of the transmission's speed sensor, which can affect the transmission's performance and shifting

Definition

The OBD2 code P1715 indicates a malfunction in the inductive signature of the transmission's speed sensor, which can affect the transmission's performance and shifting

Common causes

  • Faulty transmission control module (TCM)
  • Damaged or corroded wiring or connectors
  • Malfunctioning inductive signature sensor
  • Poor electrical connections
  • Software issues or programming errors
  • Transmission fluid issues (contamination or low levels)
  • Mechanical problems within the transmission system

Common misdiagnoses

  • Transmission fluid issues
  • Faulty transmission control module (TCM)
  • Wiring or connector problems
  • Faulty speed sensors
  • Incorrectly calibrated transmission
  • Mechanical transmission issues
  • Engine control module (ECM) faults
  • Electrical shorts or open circuits in the transmission system

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other trouble codes that may be present. Sometimes, multiple codes can provide more context for the issue

  2. 2. Inspect Wiring and Connectors

    Examine the wiring and connectors related to the transmission control module (TCM) and the sensors involved in the inductive signature. Look for signs of damage, corrosion, or loose connections

  3. 3. Check the Transmission Fluid

    Ensure that the transmission fluid is at the correct level and in good condition. Low or dirty fluid can cause transmission issues. If the fluid is burnt or contaminated, consider changing it

  4. 4. Test the Transmission Control Module (TCM)

    The TCM may be malfunctioning. If you have access to a scan tool, you can perform tests to see if the TCM is communicating properly with other modules

  5. 5. Inspect the Inductive Signature Sensor

    If applicable, check the inductive signature sensor for proper operation. This may involve testing the sensor's resistance and ensuring it is functioning within specifications

  6. 6. Check for Ground Issues

    Ensure that all ground connections related to the TCM and transmission sensors are secure and free of corrosion

  7. 7. Perform a Visual Inspection

    Look for any signs of physical damage to the transmission or related components. This includes checking for leaks or any signs of wear

  8. 8. Clear the Codes and Test Drive

    After performing the above checks and repairs, clear the trouble codes and take the vehicle for a test drive to see if the code returns

  9. 9. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the specific make and model of the vehicle. Manufacturers may have issued guidance on common issues related to the P1715 code

  10. 10. Seek Professional Help

    If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or technician who has experience with transmission issues and can perform more advanced diagnostics. Always refer to the vehicle's service manual for specific procedures and specifications related to the make and model you are working on