WOMS
P code powertrain Medium severity

P1575 Pedal Position Out of Self Test Range

The OBD2 code P1575 indicates that the pedal position sensor is reporting a value that is outside the expected range during the self-test process, suggesting a potential issue with the sensor or its circuit

Definition

The OBD2 code P1575 indicates that the pedal position sensor is reporting a value that is outside the expected range during the self-test process, suggesting a potential issue with the sensor or its circuit

Common causes

  • Faulty accelerator pedal position sensor
  • Damaged wiring or connectors in the pedal position circuit
  • Malfunctioning engine control module (ECM)
  • Incorrectly calibrated or installed accelerator pedal assembly
  • Issues with the throttle body or electronic throttle control system
  • Faulty brake pedal position sensor (if applicable)
  • Software issues or glitches in the vehicle's computer system

Common misdiagnoses

  • Throttle Position Sensor (TPS) issues
  • Accelerator Pedal Position Sensor failure
  • Engine Control Module (ECM) malfunction
  • Wiring or connector problems
  • Faulty cruise control system
  • Malfunctioning brake pedal switch
  • Issues with the electronic throttle control system
  • Problems with the vehicle's body control module (BCM)
  • Misinterpretation of other related codes
  • Mechanical issues with the accelerator pedal assembly

Troubleshooting steps

  1. 1. Check for Additional Codes

    Before proceeding, check for any other related trouble codes that may provide more context to the issue

  2. 2. Inspect the Pedal Position Sensor

  3. 3. Locate the pedal position sensor and inspect it for any physical damage, loose connections, or corrosion

  4. 4. Ensure that the sensor is securely mounted and that the wiring harness is intact

  5. 5. Test the Pedal Position Sensor

  6. 6. Use a multimeter to test the resistance and voltage output of the pedal position sensor. Compare the readings to the specifications provided in the vehicle's service manual

  7. 7. Check for proper operation by manually moving the accelerator pedal and observing the sensor's output

  8. 8. Check Wiring and Connectors

  9. 9. Inspect the wiring and connectors leading to the pedal position sensor for any signs of wear, fraying, or damage

  10. 10. Ensure that all connectors are clean and securely connected

  11. 11. Inspect the Throttle Body

  12. 12. If applicable, check the throttle body for any obstructions or issues that may affect the pedal position sensor's readings

  13. 13. Ensure that the throttle plate moves freely and is not sticking

  14. 14. Check for Vacuum Leaks

  15. 15. Inspect the intake system for any vacuum leaks that could affect engine performance and sensor readings

  16. 16. Perform a Throttle Position Sensor Calibration

  17. 17. Some vehicles may require a calibration or reset of the throttle position sensor after repairs. Refer to the service manual for specific procedures

  18. 18. Clear the Codes and Test Drive

  19. 19. After performing the necessary repairs, clear the trouble codes using an OBD-II scanner and take the vehicle for a test drive to see if the code returns

  20. 20. Consult Technical Service Bulletins (TSBs)

  21. 21. Check for any TSBs related to the P1575 code for your specific vehicle make and model, as there may be known issues or fixes

  22. 22. Seek Professional Help

  23. 23. If the issue persists after performing these steps, it may be necessary to consult a professional mechanic or technician for further diagnosis. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the P1575 code