WOMS
P code powertrain Medium severity

P058F ISO/SAE Reserved

The OBD2 code P058F indicates a manufacturer-specific issue related to the cruise control system, specifically that it is reserved for future use by ISO/SAE standards

Definition

The OBD2 code P058F indicates a manufacturer-specific issue related to the cruise control system, specifically that it is reserved for future use by ISO/SAE standards

Common causes

  • Faulty cruise control system
  • Malfunctioning brake switch
  • Wiring issues or short circuits
  • Faulty throttle position sensor
  • Software or calibration issues in the engine control module (ECM)
  • Issues with the accelerator pedal position sensor
  • Problems with the vehicle's communication network

Common misdiagnoses

  • Faulty brake switch
  • Malfunctioning cruise control module
  • Wiring issues or shorts in the cruise control circuit
  • Faulty accelerator pedal position sensor
  • Issues with the engine control module (ECM)
  • Problems with the throttle body or throttle position sensor
  • Incorrectly calibrated or faulty speed sensors

Troubleshooting steps

  1. 1. Check for Additional Codes:

    Use an OBD-II scanner to check for any other trouble codes that may be present. Codes related to the cruise control system or other related systems can provide more context

  2. 2. Inspect the Cruise Control System:

    Check the cruise control switch for proper operation. Ensure that it is not stuck or malfunctioning

  3. 3. Inspect the wiring and connectors associated with the cruise control system for any signs of damage, corrosion, or loose connections

  4. 4. Examine the Brake System:

    The cruise control system is often disabled when the brake pedal is pressed. Check the brake pedal switch to ensure it is functioning correctly and not sending false signals to the engine control module (ECM)

  5. 5. Check the Throttle Position Sensor (TPS):

    The TPS is critical for cruise control operation. Inspect the TPS for proper function and ensure it is calibrated correctly

  6. 6. Inspect the Vehicle Speed Sensor (VSS):

    The VSS provides information about the vehicle's speed to the ECM. A malfunctioning VSS can cause issues with the cruise control system. Check for proper operation and wiring

  7. 7. Examine the Engine Control Module (ECM):

    Ensure that the ECM is functioning correctly. In some cases, a software update or reprogramming may be necessary

  8. 8. Check for Vacuum Leaks:

    If your vehicle uses a vacuum-operated cruise control system, inspect for any vacuum leaks that could affect operation

  9. 9. Test the Cruise Control Actuator:

    If applicable, test the cruise control actuator to ensure it is functioning properly. This may involve checking for power and ground at the actuator

  10. 10. Clear Codes and Test Drive:

    After performing any repairs or inspections, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code reappears

  11. 11. Consult Technical Service Bulletins (TSBs)

  12. 12. Check for any TSBs related to the cruise control system for your specific make and model. Manufacturers may have issued guidance on common issues. 1

  13. 13. Seek Professional Help

  14. 14. If the issue persists after performing the above steps, consider seeking assistance from a qualified mechanic or dealership, as they may have access to specialized diagnostic tools and resources.Conclusion: Troubleshooting OBD-II code P058F involves a systematic approach to inspect and test various components of the cruise control system. By following these steps, you can identify the underlying issue and take appropriate action to resolve it